WO2025079769A1 - Power transmission device, power generation device using same, and bicycle power transmission device - Google Patents

Abstract

The present invention relates to a power transmission device, a power generation device using same, and a bicycle power transmission device, the power transmission device comprising: a frame unit (510) having a shaft coupling hole (512) formed through a bicycle frame (511) so that a first pedal (518) and a second pedal (519) are installed therein; a first power transmission unit (530) installed on one side of the bicycle frame (511) to receive the rotational force of the first pedal (518) and the second pedal (519); and a second power transmission unit (550) which receives the rotational force from the first power transmission unit (530) and rotates the rear wheel, wherein in a state where the rotation speed is increased by a power transmission gear and a timing gear, a rotating body is rotated while having great force by a fifth timing gear, thereby having an effect of increasing the force (torque) according to the rotation of the rotating body (not shown).

Description

Power transmission device and power generator using the same and bicycle power transmission device

The present invention relates to a power transmission device, a generator using the same, and a bicycle power transmission device, and more specifically, to a power transmission device that transmits power using a timing belt, a belt, and a chain, and amplifies power according to the size and rotational speed of gears and pulleys, and uses the amplified power again to generate greater power, thereby obtaining greater power when generating electricity and riding a bicycle, and to a generator using the same and a bicycle power transmission device.

In general, various types of power transmission devices are used to convert a certain form of power into another form of motion, or to slow down or speed up.

For example, a power transmission device used in a bicycle is configured to drive the rear wheel by using a crank member that converts the up-and-down motion of the rider pressing the pedals into rotational motion.

However, this crank-type power transmission device transmits power to the rear wheel only when the user rotates the crank member in one direction, and when the driver rotates the crank member in the opposite direction, the crank member rotates idling and power is not transmitted to the rear wheel. Accordingly, a power transmission device with a new power transmission system is required to solve this problem.

On the other hand, bicycles, one of the means of land transportation, can be said to be a useful means of transportation for fossil fuels because they are driven by the driving force of the user's pure pedaling force. In addition, bicycles are popular because they can enhance the user's physical strength because they are driven by the user's pure pedaling force, and they can also be used as a tool for leisure activities.

In other words, the bicycles mentioned above are widely used not only as a means of transportation or movement, but also as tools for sports or leisure. These bicycles are classified in various ways according to their purpose, structure, material, and driving principle.

If we look at the structure of a typical bicycle, it is composed of a body frame, fork, handlebar, seat, pedals, chain, and wheels. The body frame structure of this bicycle is composed of a head tube, top tube, down tube, seat tube, seat stay, and chain stay.

At this time, the connecting parts of the body frames are welded to each other or connected through separate connecting means.

As described above, a shaft hole for mounting a rear wheel is formed at the rear end of the chain stay constituting the body frame of the bicycle according to the prior art. At this time, the shaft hole at the rear end of the chain stay described above is formed in the form of a circular shaft hole with a diameter corresponding to the hub axle of the rear wheel or a shaft hole with a groove shape with an open rear end.

For example, the following patent document 1 discloses a ‘speed increasing power conversion device for a bicycle.’

A bicycle gearing power conversion device according to the following patent document 1 includes a bottom bracket having a hub formed with a predetermined diameter so that a pedal shaft can be rotatably installed on the lower part of a bicycle frame, a rotary driving unit having a ring gear integrally fixed to the pedal shaft penetrating the hub, a carrier fixed to the inside of the hub so as to face the ring gear, and a rotary gearing unit having a plurality of planetary gears and a plurality of sun gears formed as a pair rotatably installed inside the carrier, and a driving sprocket rotated by the rotary gearing unit, wherein the rotation of the driving sprocket is accelerated by the high-speed rotation of the small-diameter planetary gears and the sun gear meshed with the large-diameter ring gear of the rotary driving unit, and the rotary gearing unit includes a first planetary gear meshed with the ring gear, a second planetary gear meshed with the first planetary gear, a first sun gear meshed with the first planetary gear, and a second sun gear meshed with the second planetary gear.

The following patent document 2 discloses a ‘power transmission device’.

A power transmission device according to the following patent document 2 repeats movement in a previously set linear direction by the rotation of a crank member connected to a power supply member, and includes an elevation guide section having gear teeth along the longitudinal direction on one side thereof, a gear section having gear teeth along the circumference that mesh with the gear teeth of the elevation guide section and rotates clockwise or counterclockwise, a first movement pulley section connected to the gear section by an elevation wire fixed at both ends, a pair of first and second movement pulleys that are spaced apart from each other and repeat opposite elevations, and a power transmission section that is connected to the first and second movement pulleys by a connecting wire and transmits power according to the elevation of the first and second movement pulleys.

The purpose of the present invention is to solve the above-mentioned problems, and to provide a power transmission device that can transmit power using a timing belt, a belt, and a chain, and can increase power according to the size and rotational speed of gears and pulleys, and a power generator and a bicycle power transmission device using the same.

Another object of the present invention is to provide a power transmission device that can generate greater power by reusing the increased power to generate greater power and obtain greater power when driving a bicycle, and a power generation device and a bicycle power transmission device using the same.

In order to achieve the above-described purpose, a power transmission device according to the present invention comprises a first power transmission unit (115) comprising a first timing gear (111) that receives rotational power from a motor, a second timing gear (112) that is installed at a predetermined distance from the first timing gear (111), a power transmission gear (113) that is installed between the first timing gear (111) and the second timing gear (112) to transmit rotational power, and a first timing belt (114) that is coupled to the first timing gear (111) and the second timing gear (112);

It consists of a second power transmission unit (120) including a fixed shaft (136) fixed to the power transmission gear (113) of the power transmission unit (115), a fourth timing gear (117) fixed to the fixed shaft (136), a fifth timing gear (118) spaced apart from the fourth timing gear (117) by a predetermined distance, and a second timing belt (119) coupled to the fourth timing gear (117) and the fifth timing gear (118);

The above fixed shaft (136) is characterized by being fixed to the power transmission gear (113) and transmitting the rotational power of the first power transmission unit (115) to the second power transmission unit (120).

A power transmission device according to the present invention comprises a third power transmission unit (135) comprising a first timing gear (131) that receives rotational power from a motor, a second timing gear (132) that is installed at a predetermined distance from the first timing gear (131), a power transmission gear (133) that is installed between the first timing gear (131) and the second timing gear (132) to transmit rotational power, and a timing belt (134) that is coupled to the first timing gear (131) and the second timing gear (132);

It is composed of a second power transmission unit (140) including a fixed shaft (136) fixed to a power transmission gear (133) of the power transmission unit (135), a first pulley (137) fixed to the fixed shaft (136), a second pulley (138) spaced apart from the first pulley (137) by a predetermined distance, and a ming belt (139) coupled to the first pulley (137) and the second pulley (138).

The above fixed shaft (136) is characterized by being fixed to the power transmission gear (133) and transmitting the rotational power of the first power transmission unit (135) to the second power transmission unit (140).

The power transmission device according to the present invention comprises a first sprocket (151) that receives the rotational power of a motor, a second sprocket (152) installed at a predetermined distance behind the first sprocket (151), a first chain (153) installed between the first sprocket (151) and the second sprocket (152) so that the second sprocket (152) rotates by the rotational power of the first sprocket (151), a third sprocket (154) installed at a predetermined distance in front of the second sprocket (152), a second chain (155) installed between the second sprocket (152) and the third sprocket (154), a fourth sprocket (156) installed at a predetermined distance behind the third sprocket (154), and a second chain (156) between the third sprocket (154) and the fourth sprocket (154). It is characterized by comprising a third chain (157) installed between the sprockets (156) and a fourth chain (158) installed between the fourth sprocket (156) and the first sprocket (151).

The first sprocket (151) and the fourth sprocket (156) are formed with the same number of teeth, the second sprocket (152) and the third sprocket (154) are formed with the same number of teeth, and the second sprocket (152) and the third sprocket (154) are formed with a smaller number of teeth than the first sprocket (151).

The power transmission device according to the present invention comprises a first pulley (171) that receives the rotational power of a motor, a second pulley (172) that is installed spaced apart from the first pulley (171), a power transmission pulley (173) that is installed to transmit the rotational power between the first pulley (171) and the second pulley (172), a rotational shaft (174) that is installed on the power transmission pulley (173), a first belt (175) that is installed on the first and second pulleys (171, 172) and the power transmission pulley (173), and a plurality of first guides (176) and second guides (177) that guide the movement of the first belt (175) so that the first belt (175) can move stably, and a first power transmission unit (178) that is installed on the rotational shaft (174) that is rotated by the power transmission pulley (173) and that transmits the power. It is characterized by comprising a third pulley (181) that is rotatably installed by a pulley (173), a fourth pulley (182) that is installed at a predetermined distance from the third pulley (181), and a second power transmission unit (184) in which a second belt (183) is installed on the third pulley (181) and the fourth pulley (182).

The above power transmission pulley (173) is characterized in that a spiral winding portion (175a) is formed on the outer surface of the power transmission pulley (173) so that the power transmission pulley (173) can be rotated equally by the rotational force of the first pulley (171) and the second pulley (172).

The power transmission device according to the present invention has a first pulley (211) that receives power from a motor, a second pulley (212) installed at a predetermined distance from the first pulley (211), a third pulley (213) having a diameter smaller than the diameters of the pulleys (211, 212) is installed between the first pulley (211) and the second pulley (212), and a fourth pulley (214) installed horizontally spaced from the second pulley (212).

A first belt (215) is connected to the first pulley (211) and the second pulley (212), a second belt (216) is connected to the second pulley (212) and the third pulley (213), a third belt (217) is connected to the third pulley (213) and the fourth pulley (214), and a fourth belt (218) is installed to the fourth pulley (214) and the first pulley (211).

The second pulley (212) is characterized in that a rotation shaft (219) for transmitting power is installed, and a fifth pulley (220) is installed on the rotation shaft (219).

According to the power transmission device of the present invention, a first sprocket (231) that receives power from a motor is rotatably installed, a second sprocket (232) is installed spaced apart from the first sprocket (231) by a predetermined distance, a third sprocket (233) having a smaller number of teeth than the sprockets (231, 232) is installed between the first sprocket (231) and the second sprocket (232), and a fourth sprocket (234) formed with the same number of teeth as the second sprocket (232) and spaced apart from the second sprocket (232) by a predetermined distance,

A first chain (235) is connected and installed between the first sprocket (231) and the second sprocket (232), a second chain (236) is connected and installed between the second sprocket (232) and the third sprocket (233), and a fourth chain (237) is connected and installed between the third sprocket (233) and the fourth sprocket (234).

A rotary shaft (239) that transmits rotational power to the second sprocket (232) is installed, a fifth sprocket (240) is installed on the rotary shaft (239) to rotate together with the second sprocket (232), and the fifth sprocket (240), which receives rotational power from the third sprocket (233), is characterized in that it rotates with an increased torque.

The power transmission device according to the present invention comprises a first sprocket (251) that receives power from a motor, and a second sprocket (252) formed with the same number of teeth as the first sprocket (251) and installed at a predetermined distance from the first sprocket (251).

Between the first sprocket (251) and the second sprocket (252), a third sprocket (253) formed with a smaller number of teeth than the sprockets (251, 252) is installed, and a fourth sprocket (254) is installed spaced apart from the third sprocket (253) by a predetermined distance, and the fourth sprocket (254) is formed with the same number of teeth as the third sprocket (253).

A first chain (255) is connected and installed to the first sprocket (251) and the second sprocket (252), a second chain (256) is connected and installed to the second sprocket (252) and the third sprocket (253), a third chain (257) is connected and installed to the third sprocket (253) and the fourth sprocket (254), and a fourth chain (258) is connected and installed to the fourth sprocket (254) and the first sprocket (251).

A rotation shaft (259) is installed on the fourth sprocket (254), a fifth sprocket (260) is installed on the rotation shaft (259), the fifth sprocket (260) is formed with the same number of teeth as the fourth sprocket (254), a sixth sprocket (261) is installed spaced apart from the fifth sprocket (260), and the sixth sprocket (261) is formed with a greater number of teeth than the fifth sprocket (260).

It is characterized in that a fifth chain (262) is connected and installed to the fifth sprocket (260) and the sixth sprocket (161).

The third sprocket (253) and the fourth sprocket (254) are installed between the first sprocket (251) and the second sprocket (252), and the third sprocket (253) and the fourth sprocket (254) are formed with a smaller number of teeth than the sprockets (251, 252).

The fifth sprocket (260) is formed with the same number of teeth as the fourth sprocket (254), and the sixth sprocket (261) is formed with the same number of teeth as the first sprocket (251), thereby increasing the torque of the rotational force transmitted to the fifth sprocket (260).

A power generator using a power transmission device according to the present invention is characterized by comprising a first power transmission unit (312) that receives the rotational power of a motor (311), a second power transmission unit (317) that receives the power of the first power transmission unit (312), a third power transmission unit (323) that receives the power of the second power transmission unit (317), a fourth power transmission unit (327) that receives the power of the third power transmission unit (323), a fifth power transmission unit (331) that receives the power of the fourth power transmission unit (327), a sixth power transmission unit (336) that receives the power of the fifth power transmission unit (331), and a generator (340) that is rotated by the sixth power transmission unit (336).

The above first power transmission unit (312) is composed of a first pulley (313) having a small diameter, a second pulley (314) formed with a diameter larger than that of the first pulley (313) and spaced apart from the first pulley (313) by a predetermined distance, a first belt (315) coupled to the first pulley (313) and the second pulley (314), and a first rotational shaft (316) rotatably coupled to the second pulley (314).

The second power transmission unit (317) is rotatably coupled to the first rotation shaft (316) and is formed with a third pulley (318) having the same diameter as the second pulley (314), a fourth pulley (319) spaced apart from the third pulley (318) by a predetermined distance and having the same diameter as the third pulley (318), a second belt (320) coupled to the third pulley (318) and the fourth pulley (319), a second rotation shaft (321) coupled to the fourth pulley (319), and a third rotation shaft (322) rotatably coupled to the sixth pulley (325).

The third power transmission unit (323) is characterized by comprising a fifth pulley (324) coupled to a second rotation shaft (321) installed in the second power transmission unit (317), a sixth pulley (325) formed with a smaller diameter than the fifth pulley (324) and installed spaced apart from the fifth pulley (324) by a predetermined distance, and a third belt (326) coupled to the fifth pulley (324) and the sixth pulley (325).

The above fourth power transmission unit (327) is composed of a seventh pulley (328) rotatably installed on a first rotational axis (316), an eighth pulley (329) rotatably installed on a third rotational axis (322) spaced apart from the seventh pulley (328) by a predetermined distance, and a fourth belt (330) coupled to the seventh pulley (328) and the eighth pulley (329).

The seventh pulley (328) is formed with the same diameter as the third pulley (318), and the eighth pulley (329) is formed with a smaller diameter than the seventh pulley (328).

The above fifth power transmission unit (331) is composed of a ninth pulley (332) installed on a third rotation shaft (322), a tenth pulley (333) installed at a predetermined distance from the eighth pulley (339), a fifth belt (334) coupled to the ninth pulley (332) and the tenth pulley (333), and a fourth rotation shaft (335) rotatably coupled to the tenth pulley (333).

The above sixth power transmission unit (336) is characterized by comprising an eleventh pulley (337) rotatably coupled to a fourth rotation shaft (335), a twelfth pulley (338) installed spaced apart from the eleventh pulley (337) by a predetermined distance, and a sixth belt (339) coupled to the eleventh pulley (337) and the twelfth pulley (338), and a generator (340) is installed on the twelfth pulley (338).

A power generator using a power transmission device according to the present invention is characterized by including a first power transmission unit (360a) that receives power from a motor (351), a second power transmission unit (365a) that receives power from the first power transmission unit (360a), a third power transmission unit (360b) that is configured identically to the first power transmission unit (360a) and receives power from the second power transmission unit (365a), a fourth power transmission unit (365b) that is configured identically to the second power transmission unit (365a) and receives power from the third power transmission unit (360b), and a fifth power transmission unit (370) that receives power from the fourth power transmission unit (365b) to increase rotational speed and torque to rotate a generator (390).

The first power transmission unit (360a) and the second power transmission unit (360b) are configured to include a first pulley (352) installed on a motor (351), a second pulley (353) formed with a diameter larger than that of the first pulley (352) and spaced apart from the first pulley (352), a first belt (354) coupled to the first pulley (352) and the second pulley (353), a first timing gear (355) installed on one side of the second pulley (353) and formed with the same diameter as that of the second pulley (353), a second timing gear (356) formed with the same diameter as that of the first timing gear (355) and spaced apart from it, a third timing gear (357) installed to mesh with each other between the first timing gear (355) and the second timing gear (356), and the first It consists of a first timing belt (358) coupled to a timing gear (355) and a second timing gear (356).

The above second power transmission unit (365a) and the fourth power transmission unit (365b) are characterized by comprising a fourth timing gear (362) installed on a first rotation shaft (361) fixed to the third timing gear (357), and a fifth timing gear (363) formed with a larger diameter than the fourth timing gear (362) and spaced apart from the fourth timing gear (362).

It is characterized in that a first power transmission unit (360a) is installed in the above motor (351), a second power transmission unit (365a) is installed on one side of the first power transmission unit (360a), a third power transmission unit (360b) is installed on one side of the second power transmission unit (365a), and a fourth power transmission unit (365b) is installed on one side of the third power transmission unit (365b).

The fifth power transmission unit (370) has a second rotation shaft (371) installed on the second timing belt (364) of the fourth power transmission unit (365b), a third pulley (372) installed on the second rotation shaft (371), a fourth pulley (373) having a diameter smaller than that of the third pulley (372) is installed spaced apart from the third pulley (372), a third rotation shaft (375) is installed on the fourth pulley (373), a fifth pulley (376) is installed adjacent to the third pulley (372), a sixth pulley (377) having the same diameter as that of the fifth pulley (376) is installed spaced apart from the fifth pulley (376), and a fourth rotation shaft (379) is installed on the sixth pulley (377).

A seventh pulley (380) having the same diameter as the fourth pulley (373) is installed on the third rotation axis (375) and spaced apart from the fourth pulley (373), an eighth pulley (381) having the same diameter as the sixth pulley (377) is installed on the fourth rotation axis (379), a ninth pulley (383) having the same diameter as the fourth pulley (373) is installed on the third rotation axis (375), and a tenth pulley (384) having the same diameter as the sixth pulley (377) is installed on the third rotation axis (375).

It is characterized in that a fourth rotation shaft (379) is installed on the above-mentioned 10th pulley (384), an eleventh pulley (387) having the same diameter as the 10th pulley (384) is installed on the above-mentioned 4th rotation shaft (379), a twelfth pulley (389) having a smaller diameter than the 11th pulley (387) is installed spaced apart from the 11th pulley (387), and a generator (390) is installed on the above-mentioned 12th pulley (389).

A power generator using a power transmission device according to the present invention comprises a first power transmission unit (410) formed of a plurality of pulleys and belts with different diameters to transmit the rotational power of a motor (401) to a second power transmission unit (430), a second power transmission unit (430) that receives the rotational power of the first power transmission unit (410) to rotate a generator (461), a generator (461) that is rotated by the second power transmission unit (430) to generate electric power, an AC transformer (462) that converts the current of the generator (461), a DC charger (463) that charges the current of the AC transformer (462), a DC battery (464) that stores the current of the DC charger (463), and an AC inverter (465) that re-supplies the power of the DC battery (464) to the motor (401). It is characterized by.

The first power transmission unit (410) is characterized in that a first pulley (411) is installed so as to be rotatable by a motor (401), a second pulley (412) is installed spaced apart from the first pulley (411), a small-diameter rotary pulley (413) is installed between the first pulley (411) and the second pulley (412), a first belt (414) is connected and installed between the first pulley (411) and the second pulley (412), a first rotary shaft (416) is installed on the rotary pulley (413), a third pulley (421) having the same diameter as the rotary pulley (413) is installed on the first rotary shaft (416), a fourth pulley (422) having a large diameter is installed spaced apart from the third pulley (421), and a second rotary shaft (424) is installed on the fourth pulley (422).

The second power transmission unit (430) has a first sprocket (431) installed on the second rotation shaft (424) of the first power transmission unit (410), a second sprocket (432) installed spaced apart from the first sprocket (431), a third sprocket (433) having a small diameter is installed between the first sprocket (431) and the second sprocket (432), a fourth sprocket (434) is installed below the third sprocket (433), a chain (434-438) is connected and installed to the first to fourth sprockets (431-434), and a third rotation shaft (439) is installed on the fourth sprocket (434).

A fifth sprocket (441) is installed on the third rotation shaft (439), a sixth sprocket (442) is installed spaced apart from the fifth sprocket (441), a seventh sprocket (443) having a small diameter is installed between the fifth sprocket (441) and the sixth sprocket (442), an eighth sprocket (444) is installed spaced apart from the seventh sprocket (443), chains (445-448) are installed on the fifth to eighth sprockets (441-444), and a fourth rotation shaft (449) is installed on the eighth sprocket (444).

It is characterized in that a ninth sprocket (451) having a small diameter is installed on the fourth rotation shaft (449), a tenth sprocket (452) having a large diameter is installed spaced apart from the ninth sprocket (451), and a generator (461) is installed on the tenth sprocket (452).

The bicycle power transmission device according to the present invention comprises a frame unit (510) having a shaft coupling hole (512) formed in a bicycle frame (511) to install a first pedal (518) and a second pedal (519); a first power transmission unit (530) installed on one side of the bicycle frame (511) to receive the rotational power of the first pedal (518) and the second pedal (519); and a second power transmission unit (550) that receives the rotational power from the first power transmission unit (530) to rotate the rear wheel.

The above-mentioned shaft coupling hole (512) is provided with a coupling shaft (513), a first shaft (514) is formed on one side of the coupling shaft (513) so that the first power transmission unit (530) is installed, a second shaft (515) is coupled to the first shaft (514) so that the second power transmission unit (550) is installed, and a pedal shaft (517) is rotatably coupled to the coupling hole (516) so that the first pedal (518) and the second pedal (519) are installed.

The above first power transmission unit (530) is characterized in that a first sprocket (531) is coupled to the pedal shaft (517), a second sprocket (532) is installed spaced apart from the first sprocket (531), a third sprocket (533) having a smaller number of teeth is installed between the first sprocket (531) and the second sprocket (532), a fourth sprocket (535) is rotatably installed on the first rotation shaft (520) so as to receive the rotational power of the third sprocket (533), and a fifth sprocket (536) is rotatably installed on the coupling shaft (513).

The second power transmission unit (550) has an 11th sprocket (551) installed on the first shaft (514), a 12th sprocket (552) installed spaced apart from the 11th sprocket (551), a 13th sprocket (553) installed between the 11th sprocket (551) and the 12th sprocket (512), a 14th sprocket (555) having a smaller number of teeth is installed on one side of the 13th sprocket (553) so as to receive the rotational power of the 13th sprocket (553), a 15th sprocket (555) is installed spaced apart from the 14th sprocket (555) on the second shaft (515), and a 16th sprocket (561) is installed on the second shaft (515) so as to receive the rotational power of the 15th sprocket (555). It is characterized in that a 17th sprocket (562) is installed and rotates the rear wheel of the bicycle, spaced apart from the 16th sprocket (561).

The bicycle power transmission device according to the present invention comprises a frame unit (610) having shaft coupling holes (612) formed on both sides of a bicycle frame (611) so that a first pedal (618) and a second pedal (619) are installed; a first power transmission unit (630) installed on one side of the bicycle frame (611) so as to receive rotational power of the first pedal (618) and the second pedal (919); and a second power transmission unit (650) that receives rotational power from the first power transmission unit (630) and rotates the rear wheel.

A coupling shaft (613) is installed in the shaft coupling hole (612), a first power transmission unit (630) is installed in a first shaft (614) on one side of the coupling shaft (613), a second power transmission unit (650) is installed in a second shaft (614) on the other side of the coupling shaft (613), and a pedal shaft (617) is rotatably coupled to the coupling hole (616) so that the first pedal (618) and the second pedal (619) are installed.

The first power transmission unit (630) has a first sprocket (631) installed on one side of the pedal shaft (617) of the frame unit (610), a second sprocket (632) having a smaller number of teeth than the first sprocket (631) is installed away from the first sprocket (631), a third sprocket (633) is installed away from the first sprocket (631), and a fourth sprocket (634) is installed away from the second sprocket (632).

It is characterized in that a first chain (635) is connected and installed to the first sprocket (631) and the second sprocket (632), a second chain (636) is connected and installed to the second sprocket (632) and the third sprocket (633), a third chain (637) is connected and installed to the third sprocket (633) and the fourth sprocket (634), and a fourth chain (638) is connected and installed to the fourth sprocket (634) and the first sprocket (631).

The second power transmission unit (650) has a fifth sprocket (651) installed on one side of the second shaft (614) of the frame unit (610), a sixth sprocket (652) having a smaller number of teeth than the fifth sprocket (651) is installed apart from the fifth sprocket (651), a seventh sprocket (653) is installed on the other side of the second shaft (614) apart from one side of the fifth sprocket (651), and an eighth sprocket (654) is installed apart from the sixth sprocket (652).

It is characterized in that a fifth chain (655) is connected and installed to the fifth sprocket (651) and the sixth sprocket (652), a sixth chain (656) is connected and installed to the sixth sprocket (652) and the seventh sprocket (653), a seventh chain (657) is connected and installed to the seventh sprocket (653) and the eighth sprocket (654), and an eighth chain (658) is connected and installed to the eighth sprocket (654) and the fifth sprocket (651).

The bicycle power transmission device according to the present invention comprises a bicycle frame (701) to which a first pedal and a second pedal are installed on both sides of the bicycle frame, a pedal shaft (702) to which the first pedal and the second pedal are fixed, a coupling shaft (703) coupled internally, a first power transmission unit (710) and a second power transmission unit (720) installed on one side, and a third power transmission unit (730), a fourth power transmission unit (740), and a fifth power transmission unit (750) installed on the other side are rotatably coupled, and a first power transmission unit (710) and a second power transmission unit (720) that transmit the rotational force of the pedal are installed on one side of the coupling shaft (703), and a third power transmission unit (730) and a fourth power transmission unit (740) that transmit the rotational force of the pedal are installed on the other side of the coupling shaft (703). It is characterized in that a power transmission unit (740) and a fifth power transmission unit (750) are installed.

The first power transmission unit (710) has a third timing gear (713) with a small diameter rotatably connected between a first timing gear (711) with a large diameter and a second timing gear (712), and a first timing belt (714) that rotatably connects the dimming gears (711, 712, 713) is installed.

The above second power transmission unit (720) is characterized by comprising a fourth timing gear (721) having a small diameter so as to receive rotational power from a third timing gear (713), and a fifth timing gear (722) coupled to a coupling shaft (703) spaced apart from the fourth timing gear (721) and coupled to the coupling shaft (703) so as to transmit rotational power of the first power transmission unit (710) to the third power transmission unit (730).

The third power transmission unit (730) has an eighth timing gear (733) with a small diameter coupled between the sixth timing gear (731) and the seventh timing gear (732) installed on the coupling shaft (703), and an eighth rotational shaft (735) that transmits rotational power to the fourth power transmission unit (740) is installed on the third timing gear (733).

The above fourth power transmission unit (740) is composed of a first sprocket (741) of small diameter that receives rotational power from a second rotational shaft (735) and a second sprocket (742) that is rotatably coupled to the coupling shaft (704).

The third sprocket (751) of the fifth power transmission unit (750) is rotatably coupled to the coupling shaft (704), and the fourth sprocket (752) spaced apart from the third sprocket (751) is rotatably coupled to the rear wheel axle.

As described above, according to the power transmission device and the power generator and bicycle power transmission device using the same according to the present invention, by increasing the rotational speed by the power transmission gear and the timing gear and rotating with a large force by the fifth timing gear, the effect of increasing the force (torque) according to the rotation of the rotating body (not shown) is achieved.

In addition, the rotation speed of the second power transmission unit can be increased by the power transmission gear installed between the two timing gears, and the torque can be increased by the timing gears and pulleys of different diameters.

In addition, by using pulleys of different diameters, the rotation speed of the motor can be increased and the large torque required to drive the generator can be obtained.

In addition, the rotation speed can be increased by using belts and pulleys, timing gears and timing belts, sprockets and chains, and a large torque can be obtained. The belt can be moved stably by using guide pulleys, and by connecting and installing a number of power transmission units, the effects of rotational power and large torque can be obtained.

Figure 1 is a three-dimensional drawing showing a power transmission device according to a preferred embodiment of the present invention.

Figure 2 is a three-dimensional drawing showing a power transmission device according to a preferred embodiment of the present invention.

Figure 3 is a three-dimensional drawing showing a power transmission device according to a preferred embodiment of the present invention.

Figure 4 is a three-dimensional drawing showing a power transmission device according to a preferred embodiment of the present invention.

Figure 5 is a front view showing a power transmission device according to a preferred embodiment of the present invention.

Figure 6 is a three-dimensional drawing showing a power transmission device according to a preferred embodiment of the present invention.

Figure 7 is a front view showing a power transmission device according to a preferred embodiment of the present invention.

Figure 8 is a three-dimensional drawing showing a power transmission device according to a preferred embodiment of the present invention.

Figure 9 is a front view showing a power transmission device according to a preferred embodiment of the present invention.

Figure 10 is a three-dimensional drawing showing a power transmission device according to a preferred embodiment of the present invention.

Figure 11 is a three-dimensional drawing showing a power transmission device according to a preferred embodiment of the present invention.

Figure 12 is a three-dimensional drawing showing a power transmission device according to a preferred embodiment of the present invention.

Figure 13 is a rear perspective view of a power transmission device according to a preferred embodiment of the present invention.

Figure 14 is a rear perspective view of a power transmission device according to a preferred embodiment of the present invention.

FIG. 15 is a three-dimensional drawing showing a part of a power transmission device according to a preferred embodiment of the present invention.

Figure 16 is a front view showing a part of a power transmission device according to a preferred embodiment of the present invention.

Figure 17 is a three-dimensional drawing showing a power generation device using a power transmission device according to a preferred embodiment of the present invention.

Figure 18 is a front view showing a power generation device using a power transmission device according to a preferred embodiment of the present invention.

Figure 19 is a side view showing a power generation device using a power transmission device according to a preferred embodiment of the present invention.

Figure 20 is a three-dimensional drawing showing a power generation device using a power transmission device according to a preferred embodiment of the present invention.

Figure 21 is a front view showing a power generation device using a power transmission device according to a preferred embodiment of the present invention.

Figure 22 is a side view showing a power generation device using a power transmission device according to a preferred embodiment of the present invention.

Figure 23 is a three-dimensional drawing showing a power generation device using a power transmission device according to a preferred embodiment of the present invention.

Figure 24 is a three-dimensional drawing showing a power generation device using a power transmission device according to a preferred embodiment of the present invention.

Figure 25 is a front view showing a power generation device using a power transmission device according to a preferred embodiment of the present invention.

Figure 26 is an exploded three-dimensional view showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 27 is an exploded three-dimensional view showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 28 is a three-dimensional drawing showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 29 is a three-dimensional drawing showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 30 is a three-dimensional drawing showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 31 is a plan view showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 32 is an exploded three-dimensional view showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 33 is a three-dimensional drawing showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 34 is a three-dimensional drawing showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 35 is a plan view showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 36 is a three-dimensional drawing showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Figure 37 is an exploded three-dimensional view showing a bicycle power transmission device according to a preferred embodiment of the present invention.

Below, with reference to the attached drawings, an embodiment of the present invention is described in detail so that a person having ordinary knowledge in the technical field to which the present invention pertains can easily practice the present invention.

However, since the description of the present invention is merely an embodiment for structural and functional description, the scope of the rights of the present invention should not be construed as being limited by the embodiments described in the text.

For example, since the embodiments may have various modifications and may take various forms, the scope of the present invention should be understood to include equivalents that can realize the technical idea.

In addition, the purpose or effect presented in the present invention should not be understood as being limited thereby, since it does not mean that a specific embodiment must include all of them or only such effects.

In this specification, the present embodiments are provided so that the disclosure of the present invention is complete and so that a person skilled in the art to which the present invention belongs will fully understand the scope of the invention. The present invention is defined only by the scope of the claims.

Therefore, in some embodiments, well-known components, well-known operations, and well-known techniques are not specifically described to avoid obscuring the present invention.

Meanwhile, the meanings of terms described in the present invention are not limited to dictionary meanings and should be understood as follows.

All terms used herein, unless otherwise defined, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs.

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the contextual meaning of the relevant technology, and cannot be interpreted as having an ideal or overly formal meaning unless explicitly defined in the present invention.

Hereinafter, a power transmission device according to a preferred embodiment of the present invention, a power generator using the same, and a bicycle power transmission device will be described in detail with reference to the attached drawings.

A power transmission device according to a preferred embodiment of the present invention comprises a first power transmission unit (115) comprising a first timing gear (111) that receives rotational power from a motor, a second timing gear (112) that is installed at a predetermined distance from the first timing gear (111), a power transmission gear (113) that is installed between the first timing gear (111) and the second timing gear (112) to transmit rotational power, and a first timing belt (114) that is coupled to the first timing gear (111) and the second timing gear (112), a fixed shaft (136) that is fixed to the power transmission gear (113) of the power transmission unit (115), a fourth timing gear (117) that is fixed to the fixed shaft (136), a fifth timing gear (118) that is spaced at a predetermined distance from the fourth timing gear (117), and a fourth timing gear (118) that is connected to the fourth timing gear (117). It consists of a second power transmission unit (120) comprising a timing gear (117) and a second timing belt (119) coupled to the fifth timing gear (118).

The above fixed shaft (136) is fixed to the power transmission gear (113) and transmits the rotational power of the first power transmission unit (115) to the second power transmission unit (120).

1 is a three-dimensional drawing illustrating a power transmission device according to a preferred embodiment of the present invention.

As illustrated in FIG. 1, the power transmission device (110) of the present invention comprises a first power transmission unit (115) that receives power from a motor (not shown) and a second power transmission unit (120) that receives power from the first power transmission unit (115) and rotates a rotating body (not shown).

The above first power transmission unit (115) is composed of a first timing gear (111), a second timing gear (112), and a power transmission gear (113). The first timing gear (111) receives the rotational power of a motor (not shown), and the second timing gear (112) is installed at a predetermined distance from the first timing gear (111).

These timing gears (111, 112) can be formed in the same size or can be formed in different sizes as needed.

Meanwhile, a power transmission gear (113) is rotatably installed between the first timing gear (111) and the second timing gear (112). The power transmission gear (113) is made smaller than the timing gears (111, 112) and has a smaller number of teeth so as to increase the rotational speed.

Accordingly, the power transmission gear (113) rotates at a faster speed than the timing gears (111, 112).

In addition, a first timing belt (114) is installed in the above timing gears (111, 112) so that the second timing gear (112) rotates in the same manner as the first timing gear (111) rotates.

Accordingly, unlike the first timing gear (111) and second timing gear (112), the power transmission gear (113) rotates in the opposite direction.

The above second power transmission unit (120) is composed of a fixed shaft (136), a timing gear (117), and a fifth timing gear (118). The above fixed shaft (136) transmits the rotational power of the first power transmission unit (115) to the second power transmission unit (120), and is installed in the power transmission gear (113) and the fourth timing gear (117).

A fourth timing gear (117) is installed on the above fixed shaft (136), and a fifth timing gear (118) having a larger diameter than the fourth timing gear (117) is installed on one side of the fourth timing gear (117).

Since the above fifth timing gear (118) is formed with a larger diameter than the fourth timing gear (117), it is formed with a number of teeth greater than that of the fourth timing gear (117).

Accordingly, the fourth timing gear (117) is rotated at the same high speed as the power transmission gear (113), and the fifth timing gear (118) is rotated by the fourth timing gear (117) with a greater force than the fourth timing gear (117).

In addition, a second timing belt (119) is installed in the fourth timing gear (117) and fifth timing gear (118).

In this way, by increasing the rotation speed by the power transmission gear (113) and the fourth timing gear (117) and rotating with a large force by the fifth timing gear (118), the power (torque) according to the rotation of the rotating body (not shown) can be increased.

Figure 2 is a three-dimensional drawing illustrating a power transmission device according to a preferred embodiment of the present invention.

As shown in FIG. 2, the power transmission device of the present invention comprises a first timing gear (131) that receives rotational power from a motor, a second timing gear (132) that is installed at a predetermined distance from the first timing gear (131), a power transmission gear (133) that is installed between the first timing gear (131) and the second timing gear (132) to transmit rotational power, a third power transmission unit (135) that is formed by a timing belt (134) that is connected to the first timing gear (131) and the second timing gear (132), a fixed shaft (136) that is fixed to the power transmission gear (133) of the power transmission unit (135), a first pulley (137) that is fixed to the fixed shaft (136), a second pulley (138) that is spaced at a predetermined distance from the first pulley (117), and a first pulley (117) that is connected to the first pulley (117). It is composed of a second power transmission unit (140) formed by a pulley (137) and a spur belt (139) coupled to the second pulley (138), and the fixed shaft (136) is fixed to the power transmission gear (133) to transmit the rotational power of the first power transmission unit (135) to the second power transmission unit (140).

The above first power transmission unit (135) is composed of a first timing gear (131) and a second timing gear (132) that receive rotational power from a motor (not shown), a power transmission gear (133) that is rotatably installed between the timing gears (131, 132), and a timing belt (134).

The above first timing gear (131) and second timing gear (132) are formed with the same size and number of teeth, and the power transmission gear (133) is rotatably installed between the timing gears (131, 132).

The above timing belt (134) is connected to the first timing gear (131) and the second timing gear (132).

The fixed shaft (136) of the second power transmission unit (140) is installed in the power transmission gear (133) and transmits the rotational power of the first power transmission unit (135) to the second power transmission unit (140).

A first pulley (137) with a small diameter is installed on the above fixed shaft (136), a second pulley (138) spaced apart by a predetermined distance is installed on one side of the first pulley (137), and a belt (139) is installed on these pulleys (137, 138).

The first timing gear (131) is rotated by the above motor (not shown), and the first timing gear (131) and the second timing gear (132) are rotated in the same direction by the timing belt (134).

At this time, the power transmission gear (133) installed between the timing gears (131, 132) rotates in the opposite direction to the timing gears (131, 132), and the power transmission gear (133) rotates at a faster speed than the timing gears (131, 132).

In addition, the fixed shaft (136) fixed to the power transmission gear (133) rotates the first pulley (137) at the same rotational speed as the power transmission gear (133), and the second pulley (138) installed on the first pulley (137) increases torque by rotating more than the first pulley (137).

Accordingly, the rotating body (not shown) installed on the second pulley (138) rotates with increased power due to a large torque.

FIG. 3 is a three-dimensional view illustrating a power transmission device according to a preferred embodiment of the present invention, FIG. 4 is a three-dimensional view illustrating a power transmission device according to a preferred embodiment of the present invention, and FIG. 5 is a front view illustrating a power transmission device according to a preferred embodiment of the present invention.

As shown in FIGS. 3 to 5, the power transmission device of the present invention comprises a first sprocket (151) that receives the rotational power of the motor, a second sprocket (152) that is installed at a predetermined distance behind the first sprocket (151), a first chain (153) that is installed between the first sprocket (151) and the second sprocket (152) so that the second sprocket (152) rotates by the rotational power of the first sprocket (151), a third sprocket (154) that is installed at a predetermined distance in front of the second chain (155), a second chain (155) that is installed between the second sprocket (152) and the third sprocket (154), a fourth sprocket (156) that is installed at a predetermined distance behind the third sprocket (154), and a third chain (153). It consists of a third chain (157) installed between the sprocket (154) and the fourth sprocket (156), and a fourth chain (158) installed between the fourth sprocket (156) and the first sprocket (151).

As shown in FIGS. 3 to 5, the first sprocket (151) receives rotational power from a motor (not shown), and a second sprocket (152) having a smaller number of teeth than the first sprocket (151) is installed at the rear (right) of the first sprocket (151).

A first chain (153) is installed between the first sprocket (151) and the second sprocket (152) to transmit the rotational power of the first sprocket (151) to the second sprocket (152).

Accordingly, the second sprocket (152) rotates counterclockwise with respect to the first sprocket (151), and the fourth sprocket (156) rotates with a greater force (torque) than the first sprocket (151).

A third sprocket (154) having the same number of teeth is installed in front (left) of the second sprocket (152), and a second chain (155) is installed between the second sprocket (152) and the third sprocket (154).

Accordingly, the second sprocket (152) and the third sprocket (154) are rotated in the same direction by the second chain (155) and rotate at a faster rotation speed than the first sprocket (151).

The first sprocket (151) and the fourth sprocket (156) are formed with the same number of teeth, the second sprocket (152) and the third sprocket (154) are formed with the same number of teeth, and the second sprocket (152) and the third sprocket (154) are formed with a smaller number of teeth than the first sprocket (151).

A fourth sprocket (156) is installed at the rear (right) of the third sprocket (154), and the fourth sprocket (156) is formed with the same number of teeth as the first sprocket (151).

A third chain (157) is installed between the third sprocket (154) and the fourth sprocket (156), and the third sprocket (154) and the fourth sprocket (156) rotate in the same direction.

The above fourth sprocket (156) is formed with a number of teeth greater than that of the third sprocket (154) and rotates with a greater torque than the third sprocket (154).

A rotating body (not shown) is coupled to the fourth sprocket (156), and the rotating body is rotated with a large torque by the fourth sprocket (156).

Meanwhile, the first to fourth sprockets (151, 152, 154, 156) may be formed as pulleys, and the first to fourth chains (153, 155, 157, 158) may be formed as belts.

FIG. 6 is a three-dimensional view illustrating a power transmission device according to a preferred embodiment of the present invention, and FIG. 7 is a front view illustrating a power transmission device according to a preferred embodiment of the present invention.

The power transmission device according to the present invention comprises a first pulley (171) that receives the rotational power of a motor, a second pulley (172) that is installed spaced apart from the first pulley (171), a power transmission pulley (173) that is installed to transmit the rotational power between the first pulley (171) and the second pulley (172), a rotational shaft (174) that is installed on the power transmission pulley (173), a first belt (175) that is installed on the first and second pulleys (171, 172) and the power transmission pulley (173), and a plurality of first guides (176) and second guides (177) that guide the movement of the first belt (175) so that the first belt (175) can move stably, and a first power transmission unit (178) that is installed on the rotational shaft (174) that is rotated by the power transmission pulley (173) and that transmits the power transmission It is composed of a third pulley (181) that is rotatably installed by a pulley (173), a fourth pulley (182) that is installed at a predetermined distance from the third pulley (181), and a second power transmission unit (184) in which a second belt (183) is installed on the third pulley (181) and the fourth pulley (182).

The above power transmission pulley (173) is characterized in that a spiral winding portion (175a) is formed on the outer surface of the power transmission pulley (173) so that the power transmission pulley (173) can be rotated equally by the rotational force of the first pulley (171) and the second pulley (172).

The first pulley (171) and the second pulley (172) are formed with the same diameter, and the first pulley (171) and the second pulley (172) are installed spaced apart from each other by a predetermined distance.

The above power transmission pulley (173) is installed between the first pulley (171) and the second pulley (172), and a rotational shaft (174) that transmits the rotational power of the first power transmission unit (178) to the second power transmission unit (184) is rotatably installed on the power transmission pulley (173).

A first belt (174) for transmitting rotational power is installed on the above pulleys (171, 172) and the power transmission pulley (173), and the first belt (175) is installed in a state of wrapping around the power transmission pulley (173) once.

That is, a spiral winding part (175a) is formed on the power transmission pulley (173) in which the first belt (175) is wound once, and the spiral winding part (175a) causes the power transmission pulley (173) to rotate in the same manner as the pulleys (171, 172) by the rotational force of the pulleys (171, 172).

In addition, a guide (176, 177) is installed on the first belt (175) to guide the movement of the first belt (175) while preventing the first belt (175) from coming off. The first guide (176) is installed on one side of the first belt (175), and the second guide (177) is installed on the other side of the first belt (175). At least one of these guides (176, 177) is installed.

A third pulley (181) is installed on the above rotation shaft (174) and is spaced apart from the power transmission pulley (173), and the fourth pulley (182) is installed spaced apart from the third pulley (181).

Meanwhile, the first pulley (171), the second pulley (172), and the fourth pulley (182) are formed with the same diameter, the power transmission pulley (173) and the third pulley (181) are formed with the same diameter, and the power transmission pulley (173) and the third pulley (181) are formed with a smaller diameter than the pulleys (171, 172, 182).

The power transmission pulley (173) installed between the first pulley (171) and the second pulley (172) rotates at a faster speed than the pulleys (171, 172), and the rotation shaft (174) installed in the power transmission pulley (173) rotates the third pulley (181) at a faster speed.

In addition, the fourth pulley (182) of the second power transmission unit (184) rotates at a slower speed than the third pulley (181) to increase a large torque.

Accordingly, the rotating body (not shown) installed on the fourth pulley (182) rotates with a large torque.

8 is a three-dimensional view illustrating a power transmission device according to a preferred embodiment of the present invention, and FIG. 9 is a front view illustrating a power transmission device according to a preferred embodiment of the present invention.

As shown in FIGS. 8 and 9, a power transmission device according to an embodiment of the present invention includes a first pulley (211) that receives power from a motor, a second pulley (212) that is installed at a predetermined distance from the first pulley (211), a third pulley (213) that has a diameter smaller than the diameters of the pulleys (211, 212) is installed between the first pulley (211) and the second pulley (212), a fourth pulley (214) that is installed horizontally spaced from the second pulley (212), a first belt (215) is connected to the first pulley (211) and the second pulley (212), a second belt (216) is connected to the second pulley (212) and the third pulley (213), a third belt (217) is connected to the third belt (213) and the fourth pulley (214), and a fourth pulley (214) that is installed at a predetermined distance from the first pulley (211). A fourth belt (218) is installed on the pulley (214) and the first pulley (211), a rotation shaft (219) for transmitting power is installed on the second pulley (212), and a fifth pulley (220) is installed on the rotation shaft (219).

The first pulley (211) is installed so as to be rotatable by a motor (not shown), the second pulley (212) is installed at a predetermined distance from the first pulley (211), and the third pulley (213) is installed between the first pulley (211) and the second pulley (212).

The third pulley (213) is installed at the same position as the second pulley (212) and spaced apart from the second pulley (212) by a predetermined distance.

A first belt (215) is connected to the first pulley (211) and the second pulley (212), a second belt (216) is connected to the second pulley (212) and the third pulley (213), a third belt (217) is connected to the third pulley (213) and the fourth pulley (214), and a fourth belt (218) is connected to the fourth pulley (214) and the first pulley (211).

Meanwhile, the first belt (215) to the fourth belt (218) are made of one belt and are installed in a state of being wound around the first pulley (211) to the fourth pulley (214).

In addition, the fourth pulley (214) is installed on a rotation axis (219), and a fifth pulley (220) that rotates together with the second pulley (212) is installed on the rotation axis (219).

The above first pulley (211) is rotated by a motor (not shown), and the first pulley (211) rotates the second pulley (212) by pulling the third pulley (213) through the second pulley (212) by the first belt (215), thereby rotating the third pulley (213) having a diameter smaller than that of the second pulley (212), and the third pulley (213) rotates the fourth pulley (214) by pulling it.

That is, the rotational power of the motor is transmitted to the first pulley (211) and the second pulley (212) with large diameters, the second pulley (212) is transmitted to the third pulley (213) with small diameters, and the third pulley (213) is transmitted to the fourth pulley (214) with large diameters.

The rotation shaft (219) installed on the second pulley (212) rotates by the second pulley (212) and thereby rotates the fifth pulley (220) formed with the same diameter as the second pulley (212), thereby obtaining a large torque.

FIG. 10 is a three-dimensional view illustrating a power transmission device according to a preferred embodiment of the present invention, and FIG. 11 is a three-dimensional view illustrating a power transmission device according to a preferred embodiment of the present invention.

As shown in FIGS. 10 and 11, a power transmission device according to an embodiment of the present invention includes a first sprocket (231) that receives power from a motor and is rotatably installed, a second sprocket (232) that is installed spaced apart from the first sprocket (231) by a predetermined distance, a third sprocket (233) that has a smaller number of teeth than the sprockets (231, 232) is installed between the first sprocket (231) and the second sprocket (232), and a fourth sprocket (234) that is formed with the same number of teeth as the second sprocket (232) and is installed spaced apart from the second sprocket (232) by a predetermined distance.

A first chain (235) is connected and installed between the first sprocket (231) and the second sprocket (232), a second chain (236) is connected and installed between the second sprocket (232) and the third sprocket (233), a fourth chain (238) is connected and installed between the third sprocket (233) and the fourth sprocket (234), a rotational shaft (239) that transmits rotational force to the second sprocket (232) is installed, a fifth sprocket (240) is installed on the rotational shaft (239) so as to rotate together with the second sprocket (232), and the fifth sprocket (240), which receives the rotational force of the third sprocket (233), rotates with an increased torque.

The first sprocket (231) and the second sprocket (232) are installed spaced apart from each other by a predetermined distance, and the first sprocket (231) and the second sprocket (232) are formed with the same number of teeth.

The third sprocket (233) is formed with a smaller number of teeth than the sprockets (231, 232), and the third sprocket (233) is installed between the first sprocket (231) and the second sprocket (232).

In addition, the fourth sprocket (234) is formed with the same number of teeth as the sprockets (231, 232).

A first chain (235) is connected and installed between the first sprocket (231) and the second sprocket (232), a second chain (236) is connected and installed between the second sprocket (232) and the third sprocket (233), a third chain (237) is connected and installed between the third sprocket (233) and the fourth sprocket (234), and a fourth chain (238) is connected and installed between the fourth sprocket (234) and the first sprocket (231).

That is, the first sprocket (231) rotates the second sprocket (232) in the same direction by the first chain (235), the second sprocket (232) rotates the third sprocket (233) with a smaller number of teeth at a faster speed, and the third sprocket (233) rotates the fourth sprocket (234) with a larger number of teeth, thereby obtaining a large torque.

FIG. 12 is a three-dimensional view illustrating a power transmission device according to a preferred embodiment of the present invention, FIG. 13 is a three-dimensional view of the back side illustrating a power transmission device according to a preferred embodiment of the present invention, and FIG. 14 is a three-dimensional view of the back side illustrating a power transmission device according to a preferred embodiment of the present invention.

FIG. 15 is a three-dimensional view illustrating a part of a power transmission device according to a preferred embodiment of the present invention, and FIG. 16 is a front view illustrating a part of a power transmission device according to a preferred embodiment of the present invention.

As shown in FIGS. 12 to 16, a power transmission device according to an embodiment of the present invention comprises a first sprocket (251) that receives power from a motor, and a second sprocket (252) formed with the same number of teeth as the first sprocket (251) and installed at a predetermined distance from the first sprocket (251).

Between the first sprocket (251) and the second sprocket (252), a third sprocket (253) formed with a smaller number of teeth than the sprockets (251, 252) is installed, and a fourth sprocket (254) is installed spaced apart from the third sprocket (253) by a predetermined distance, and the fourth sprocket (254) is formed with the same number of teeth as the third sprocket (253).

A first chain (255) is connected and installed to the first sprocket (251) and the second sprocket (252), a second chain (256) is connected and installed to the second sprocket (252) and the third sprocket (253), a third chain (257) is connected and installed to the third sprocket (253) and the fourth sprocket (254), and a fourth chain (258) is connected and installed to the fourth sprocket (254) and the first sprocket (251).

A rotation shaft (259) is installed on the fourth sprocket (254), a fifth sprocket (260) is installed on the rotation shaft (254), the fifth sprocket (260) is formed with the same number of teeth as the fourth sprocket (254), a sixth sprocket (261) is installed spaced apart from the fifth sprocket (260), the sixth sprocket (261) is formed with a greater number of teeth than the fifth sprocket (260), and a fifth chain (262) is connected and installed to the fifth sprocket (260) and the sixth sprocket (161).

The third sprocket (253) and the fourth sprocket (254) are installed between the first sprocket (251) and the second sprocket (252), and the third sprocket (253) and the fourth sprocket (254) are formed with a smaller number of teeth than the sprockets (251, 252), the fifth sprocket (260) is formed with the same number of teeth as the fourth sprocket (254), and the sixth sprocket (262) is formed with the same number of teeth as the first sprocket (251), thereby increasing the torque of the rotational force transmitted to the fifth sprocket (260).

The first sprocket (251) is formed with a number of teeth greater than that of the third and fourth sprockets (253, 254), and the third and fourth sprockets (253, 254) are formed with a number of teeth less than that of the first and second sprockets (251, 252).

The first sprocket (251) and the second sprocket (252) are installed spaced apart from each other by a predetermined distance, and the third sprocket (253) and the fourth sprocket (254) are installed spaced apart from each other by a predetermined distance between the first sprocket (251) and the second sprocket (252).

A first chain (255) is connected and installed between the first sprocket (251) and the second sprocket (252), and a second chain (256) is connected and installed between the second sprocket (252) and the third sprocket (253).

In addition, a third chain (257) is connected and installed to the third sprocket (253) and the fourth sprocket (254), and a fourth chain (258) is connected and installed to the fourth sprocket (254) and the first sprocket (251).

As shown in Fig. 16, the first sprocket (251) rotates clockwise to rotate the second sprocket (252) clockwise by the first chain (255), and the second sprocket (252) rotates the third sprocket (253) clockwise by the second chain (256).

In addition, the third sprocket (253) rotates the fourth sprocket (254) by the third chain (257), and the rotation shaft (259) installed in the fourth sprocket (254) rotates in the same direction as the fourth sprocket (254).

At this time, the third sprocket (253) and the fourth sprocket (254) are formed with a number of teeth smaller than that of the sprockets (251, 252), so they rotate at a speed faster than the rotational speed of the sprockets (251, 252).

Since the fifth sprocket (260) is installed on the above rotation shaft (259), the fifth sprocket (260) rotates at the same rotational speed as the fourth sprocket (254).

The above sixth sprocket (261) is rotated by the fifth chain (262), and the sixth sprocket (261) is rotated with a greater torque than the fifth sprocket (260).

A rotating body (not shown) can be installed on the sixth sprocket (261), and the sixth sprocket (261) can rotate the rotating body with a large torque.

FIG. 17 is a three-dimensional view illustrating a power generation device using a power transmission device according to a preferred embodiment of the present invention, FIG. 18 is a front view illustrating a power generation device using a power transmission device according to a preferred embodiment of the present invention, and FIG. 19 is a side view illustrating a power generation device using a power transmission device according to a preferred embodiment of the present invention.

A power transmission device according to an embodiment of the present invention comprises a first power transmission unit (312) that receives the rotational power of a motor (311), a second power transmission unit (317) that receives the power of the first power transmission unit (312), a third power transmission unit (323) that receives the power of the second power transmission unit (317), a fourth power transmission unit (327) that receives the power of the third power transmission unit (323), a fifth power transmission unit (331) that receives the power of the fourth power transmission unit (327), a sixth power transmission unit (336) that receives the power of the fifth power transmission unit (331), and a generator (340) that is rotated by the sixth power transmission unit (336).

The first power transmission unit (312) is composed of a first pulley (313) having a small diameter, a second pulley (314) formed with a larger diameter than the first pulley (313) and spaced apart from the first pulley (313) by a predetermined distance, a first belt (315) coupled to the first pulley (313) and the second pulley (314), and a first rotational shaft (316) rotatably coupled to the second pulley (314), and the second power transmission unit (317) is composed of a third pulley (318) rotatably coupled to the first rotational shaft (316) and formed with the same diameter as the second pulley (314), a fourth pulley (319) spaced apart from the third pulley (318) by a predetermined distance and formed with the same diameter as the third pulley (318), and a second pulley coupled to the third pulley (318) and the fourth pulley (319). It is composed of a belt (320), a second rotation shaft (321) coupled to the fourth pulley (319), and a third rotation shaft (322) rotatably coupled to the sixth pulley (325), and the third power transmission unit (323) is composed of a fifth pulley (324) coupled to the second rotation shaft (321) installed in the second power transmission unit (317), a sixth pulley (325) formed with a smaller diameter than the fifth pulley (324) and installed spaced apart from the fifth pulley (324) by a predetermined distance, and a third belt (326) coupled to the fifth pulley (324) and the sixth pulley (325).

The above fourth power transmission unit (327) is composed of a seventh pulley (328) rotatably installed on a first rotational axis (316), an eighth pulley (329) rotatably installed on a third rotational axis (322) spaced apart from the seventh pulley (328) by a predetermined distance, and a fourth belt (330) coupled to the seventh pulley (328) and the eighth pulley (329).

The seventh pulley (328) is formed with the same diameter as the third pulley (318), and the eighth pulley (329) is formed with a smaller diameter than the seventh pulley (328).

The above fifth power transmission unit (331) is composed of a ninth pulley (332) installed on a third rotation shaft (322), a tenth pulley (333) installed at a predetermined distance from the eighth pulley (329), a fifth belt (334) coupled to the ninth pulley (332) and the tenth pulley (333), and a fourth rotation shaft (335) rotatably coupled to the tenth pulley (333).

The above sixth power transmission unit (336) is composed of an eleventh pulley (337) rotatably coupled to a fourth rotation shaft (335), a twelfth pulley (338) installed at a predetermined distance from the eleventh pulley (337), and a sixth belt (339) coupled to the eleventh pulley (337) and the twelfth pulley (338), and a generator (340) is installed on the twelfth pulley (338).

As illustrated in FIGS. 17 to 19, a power generation device using a power transmission device according to an embodiment of the present invention transmits power generated from a motor (311) to a plurality of power transmission units (312, 317, 323, 327, 331, 336) to rotate a generator (340).

The first pulley (313) of the first power transmission unit (312) is installed on the above motor (311), and the second pulley (314) corresponding to the first pulley (313) is installed spaced apart by a predetermined distance, and the second pulley (314) is formed with a larger diameter than the first pulley (313).

A first belt (315) is connected and installed to the first pulley (313) and the second pulley (314), and a first rotation shaft (316) that transmits the power of the first power transmission unit (312) is installed to the second pulley (314).

A second power transmission unit (317) that transmits power to a third power transmission unit (323) is installed on the first rotation shaft (316).

The third pulley (318) of the second power transmission unit (317) is installed on the first rotation shaft (316), and the third pulley (318) is formed with the same diameter as the second pulley (314).

In addition, a fourth pulley (319) formed with the same diameter as the third pulley (318) is installed spaced apart from each other by a predetermined distance, and a second belt (320) is connected and installed between the third pulley (318) and the fourth pulley (319).

These third pulleys (318) are installed to correspond to the second pulley (314) of the first power transmission unit (312), and the fourth pulley (319) is installed to correspond to the fifth pulley (324) of the third power transmission unit (323).

A third power transmission unit (323) is installed on one side of the second power transmission unit (317), and a fourth power transmission unit (327) is installed on the other side of the second power transmission unit (317).

A third rotational axis (321) is rotatably installed on the fourth pulley (319), a fifth pulley (324) is rotatably installed on the third rotational axis (321), a sixth pulley (325) corresponding to the fifth pulley (324) is installed at a predetermined distance from the fifth pulley (324), and a third belt (326) is connected and installed between the fifth pulley (324) and the sixth pulley (325).

Meanwhile, the fourth pulley (319) and the fifth pulley (324) are formed with the same diameter, and the sixth pulley (325) is formed with a smaller diameter than the pulleys (319, 324).

A third rotation shaft (322) is installed on the fifth pulley (324) so as to transmit power to the fourth power transmission unit (331).

In addition, the fourth power transmission unit (327) is installed on the first rotation shaft (316) and the third rotation shaft (322), and the seventh pulley (328) of the fourth power transmission unit (327) is coupled to the first rotation shaft (316), and the eighth pulley (329) is coupled to the third rotation shaft (322).

In addition, a fourth power transmission unit (327) is installed on the first rotation shaft (316) and the third rotation shaft (322), and a seventh pulley (328) of the fourth power transmission unit (327) is rotatably coupled to the first rotation shaft (316), and a ninth pulley (329) of the fourth power transmission unit (327) is rotatably coupled to the third rotation shaft (322).

In addition, a fourth belt (330) is connected and installed to the seventh pulley (328) and the eighth pulley (329), and the seventh pulley (328) is formed with the same diameter as the second pulley (314), and the eighth pulley (329) is formed with the same diameter as the sixth pulley (326).

Accordingly, the sixth pulley (325), the eighth pulley (329), and the ninth pulley (332) of the fifth power transmission unit (331) are coupled to the third rotation shaft (322), and these pulleys (325, 329, 332) rotate at a faster speed than the pulleys (319, 328) with a larger diameter.

In addition, a fifth power transmission unit (331) is installed on the third rotation shaft (322), a ninth pulley (332) of the fifth power transmission unit (331) is rotatably connected to the third rotation shaft (322), a tenth pulley (333) having a large diameter is rotatably installed at the same position as the fourth pulley (319), and a fifth belt (334) is connected to the ninth pulley (332) and the tenth pulley (333).

A fourth rotation shaft (335) is installed on the above-mentioned 10th pulley (333) to transmit power to a sixth power transmission unit (336), and a sixth power transmission unit (336) is installed on the above-mentioned 4th rotation shaft (335) to rotate a generator (340).

The 11th pulley (337) of the 6th power transmission unit (336) is rotatably installed on the 4th rotation shaft (335), the 12th pulley (338) is installed at a predetermined distance from the 11th pulley (337), and a generator (340) is installed on the 12th pulley (338).

In this way, by using pulleys of different diameters, the rotation speed of the motor (311) can be increased and a large torque required to drive the generator (340) can be obtained.

FIG. 20 is a three-dimensional view illustrating a power generation device using a power transmission device according to a preferred embodiment of the present invention, FIG. 21 is a front view illustrating a power generation device using a power transmission device according to a preferred embodiment of the present invention, and FIG. 22 is a side view illustrating a power generation device using a power transmission device according to a preferred embodiment of the present invention.

A power generator using a power transmission device according to a preferred embodiment of the present invention is characterized by including a first power transmission unit (360a) that receives power from a motor (351), a second power transmission unit (365a) that receives power from the first power transmission unit (360a), a third power transmission unit (360b) that is configured identically to the first power transmission unit (360a) and receives power from the second power transmission unit (365a), a fourth power transmission unit (365b) that is configured identically to the second power transmission unit (365a) and receives power from the third power transmission unit (360b), and a fifth power transmission unit (370) that receives power from the fourth power transmission unit (365b) and increases rotational speed and torque to rotate a generator (390).

The first power transmission unit (360a) and the second power transmission unit (360b) are configured to include a first pulley (352) installed on a motor (351), a second pulley (353) formed with a larger diameter than the first pulley (352) and spaced apart from the first pulley (352), a first belt (354) coupled to the first pulley (352) and the second pulley (353), a first timing gear (355) installed on one side of the second pulley (353) and formed with the same diameter as the second pulley (353), a second timing gear (356) formed with the same diameter as the first timing gear (355) and spaced apart from it, a third timing gear (357) installed to mesh with each other between the first timing gear (355) and the second timing gear (356), and the first It consists of a first timing belt (358) coupled to a timing gear (355) and a second timing gear (356).

The above second power transmission unit (365a) and the fourth power transmission unit (365b) are characterized by comprising a fourth timing gear (362) installed on a first rotation shaft (361) fixed to the third timing gear (357), and a fifth timing gear (363) formed with a larger diameter than the fourth timing gear (362) and spaced apart from the fourth timing gear (362).

It is characterized in that a first power transmission unit (360a) is installed in the above motor (351), a second power transmission unit (365a) is installed on one side of the first power transmission unit (360a), a third power transmission unit (360b) is installed on one side of the second power transmission unit (365a), and a fourth power transmission unit (365b) is installed on one side of the third power transmission unit (365b).

As shown in FIGS. 20 to 22, the first power transmission unit (360a) has a first pulley (352) of the first power transmission unit (360a) installed on a motor (351), a second pulley (353) installed spaced apart from the first pulley (352), and a first belt (354) connected to the first pulley (352) and the second pulley (353).

A first timing gear (355) is installed on one side of the second pulley (353), a second timing gear (356) is installed spaced apart from the first timing gear (355), and the first timing gear (355) and the second timing gear (356) are formed with the same diameter.

In addition, a third timing gear (357) is interlocked and installed between the first timing gear (355) and the second timing gear (356). That is, the third timing gear (357) is interlocked and installed with the first timing gear (355) and the second timing gear (356), respectively, and the third timing gear (357) rotates in the opposite direction to the first timing gear (355) and the second timing gear (356).

A first timing belt (358) is connected and installed to the first timing gear (355) and the second timing gear (356) so that they can rotate in the same direction, and the first timing gear (355) and the second timing gear (356) are rotated in the same direction by the first timing belt (358).

In addition, a first rotation shaft (361) is installed on the third timing gear (357), and a second power transmission unit (365a) is installed on the first rotation shaft (361).

The above second power transmission unit (365a) has a fourth timing gear (362) with a small diameter installed on the first rotation shaft (361), a fifth timing gear (363) installed spaced apart from the fourth timing gear (362), and a second timing belt (364) connected between the fourth timing gear (362) and the fifth timing gear (363).

The rotational power generated from the above motor (351) is transmitted to the first power transmission unit (360a), and the rotational power transmitted to the first power transmission unit (360a) is transmitted to the second power transmission unit (365a).

A third power transmission unit (360b) identical to the first power transmission unit (360a) is installed on one side of the second power transmission unit (365a), and a fourth power transmission unit (365b) identical to the second power transmission unit (365a) is installed on one side of the third power transmission unit (360b).

That is, in order to transmit the rotational power of the motor (351), the first power transmission unit (360a), the second power transmission unit (365a), the third power transmission unit (360b), and the fourth power transmission unit (365b) are installed sequentially.

The first power transmission unit (360a) and the third power transmission unit (360b) have the same structure, and the second power transmission unit (365a) and the fourth power transmission unit (365b) have the same structure, so they will be described using the same drawing symbols, and any duplicate descriptions will be omitted.

Meanwhile, the first power transmission unit (360a) is illustrated as being installed in a horizontal direction, but it is of course possible for the first power transmission unit (360a) to be installed in a vertical direction.

In this way, the first power transmission unit (360a), the second power transmission unit (365a), the third power transmission unit (360b), and the fourth power transmission unit (365b) can be installed horizontally or vertically as needed.

The fifth power transmission unit (370) has a second rotation shaft (371) installed on the second timing belt (364) of the fourth power transmission unit (365b), a third pulley (372) installed on the second rotation shaft (371), a fourth pulley (373) having a diameter larger than that of the third pulley (372) is installed spaced apart from the third pulley (372), a third rotation shaft (375) is installed on the fourth pulley (373), a fifth pulley (376) is installed adjacent to the third pulley (372), a sixth pulley (377) having the same diameter as that of the fifth pulley (376) is installed spaced apart from the fifth pulley (376), and a fourth rotation shaft (379) is installed on the sixth pulley (377).

A seventh pulley (380) having the same diameter as the fourth pulley (373) is installed on the third rotation axis (375) and spaced apart from the fourth pulley (373), an eighth pulley (381) having the same diameter as the sixth pulley (377) is installed on the fourth rotation axis (379), a ninth pulley (383) having the same diameter as the fourth pulley (373) is installed on the third rotation axis (375), and a tenth pulley (384) having the same diameter as the sixth pulley (377) is installed on the third rotation axis (375).

A fourth rotation shaft (379) is installed on the above-mentioned 10th pulley (384), an eleventh pulley (387) having the same diameter as the 10th pulley (384) is installed on the above-mentioned 4th rotation shaft (379), a twelfth pulley (389) having a smaller diameter than the 11th pulley (387) is installed spaced apart from the 11th pulley (387), and a generator (390) is installed on the above-mentioned 12th pulley (389).

A fifth power transmission unit (370) is installed on one side of the fourth power transmission unit (365b). A third pulley (372) is installed on one side of the fourth power transmission unit (365b), and a rotation shaft (371) is installed on the fifth timing gear (363) of the fourth power transmission unit (365b).

A third pulley (372) is installed on the above rotation shaft (371), a fourth pulley (373) with a diameter larger than that of the third pulley (372) is installed spaced apart from the third pulley (372), and a second belt (374) is connected and installed between the third pulley (372) and the fourth pulley (373).

A third rotation shaft (375) is installed on the fourth pulley (373), a fifth pulley (376) having the same diameter as the third pulley (372) is installed on the second rotation shaft (371), a sixth pulley (377) having the same diameter as the fifth pulley (376) is installed spaced apart from it, and a third belt (378) is connected and installed to the fifth pulley (376) and the sixth pulley (377).

A fourth rotational shaft (379) is installed on the sixth pulley (377), a seventh pulley (380) with a small diameter is installed on the third rotational shaft (375), an eighth pulley (381) with a large diameter is installed on the fourth rotational shaft (379), and a fourth belt (382) is connected and installed to the seventh pulley (380) and the eighth pulley (381).

In addition, a ninth pulley (383) with a small diameter is installed on the third rotation axis (375), a tenth pulley (384) with a large diameter is installed spaced apart from the ninth pulley (383), a fifth belt (385) is connected and installed to the ninth pulley (383) and the tenth pulley (384), and a fifth rotation axis (386) is installed on the tenth pulley (384).

A large diameter eleventh pulley (387) is installed on the fifth rotation shaft (386), a small diameter twelveth pulley (388) is installed spaced apart from the eleventh pulley (387), a sixth belt (389) is connected and installed between the eleventh pulley (387) and the twelve pulley (388), and a generator (390) is installed on the twelve pulley (388).

In this way, the rotational speed can be increased or decreased by the first power transmission unit (360a), the second power transmission unit (365a), the third power transmission unit (360b), and the fourth power transmission unit (365b), and the torque can be increased to transmit the rotational power of the motor (351) to the fifth power transmission unit (370).

In addition, the fifth power transmission unit (370) increases the rotational force and torque by a number of pulleys, each having a different diameter, and transmits the increased torque to the generator (390).

FIG. 23 is a three-dimensional view illustrating a power generation device using a power transmission device according to a preferred embodiment of the present invention, FIG. 24 is a three-dimensional view illustrating a power generation device using a power transmission device according to a preferred embodiment of the present invention, and FIG. 25 is a front view illustrating a power generation device using a power transmission device according to a preferred embodiment of the present invention.

As illustrated in FIGS. 23 to 25, a power generator (400) using a power transmission device of the present invention comprises a first power transmission unit (410) formed of a plurality of pulleys and belts with different diameters to transmit the rotational power of a motor (401) to a second power transmission unit (430), a second power transmission unit (430) that receives the rotational power of the first power transmission unit (410) to rotate a generator (461), a generator (461) that is rotated by the second power transmission unit (430) to generate electric power, an AC transformer (462) that converts the current of the generator (461), a DC charger (463) that charges the current of the AC transformer (462), a DC battery (464) that stores the current of the DC charger (463), and a power supply for the DC battery (464). It consists of an AC inverter (465) that re-supplies power to the motor (401).

The first power transmission unit (410) is provided with a first pulley (411) that is rotatable by a motor (401), a second pulley (412) is installed spaced apart from the first pulley (411), a small-diameter rotary pulley (413) is installed between the first pulley (411) and the second pulley (412), a first belt (414) is connected and installed between the first pulley (411) and the second pulley (412), a first rotary shaft (416) is installed on the rotary pulley (413), a third pulley (421) having the same diameter as the rotary pulley (413) is installed on the first rotary shaft (416), a fourth pulley (422) having a large diameter is installed spaced apart from the third pulley (421), and a second rotary shaft (424) is installed on the fourth pulley (422).

The second power transmission unit (430) has a first sprocket (431) installed on the second rotation shaft (424) of the first power transmission unit (410), a second sprocket (432) installed spaced apart from the first sprocket (431), a third sprocket (433) having a small diameter is installed between the first sprocket (431) and the second sprocket (432), a fourth sprocket (434) is installed below the third sprocket (433), a chain (434-438) is connected and installed to the first to fourth sprockets (431-434), and a third rotation shaft (439) is installed on the fourth sprocket (434).

A fifth sprocket (441) is installed on the third rotation shaft (439), a sixth sprocket (442) is installed spaced apart from the fifth sprocket (441), a seventh sprocket (443) having a small diameter is installed between the fifth sprocket (441) and the sixth sprocket (442), an eighth sprocket (444) is installed spaced apart from the seventh sprocket (443), chains (445-448) are installed on the fifth to eighth sprockets (441-444), and a fourth rotation shaft (449) is installed on the eighth sprocket (444).

A ninth sprocket (451) with a small diameter is installed on the fourth rotation shaft (449), a tenth sprocket (452) with a large diameter is installed spaced apart from the ninth sprocket (451), and a generator (461) is installed on the tenth sprocket (452).

A first pulley (411) is installed in the motor (401) of the first power transmission unit (410), a second pulley (412) is installed spaced apart from the first pulley (411), and a rotary pulley (413) is installed between the first pulley (411) and the second pulley (412).

A first belt (414) is connected and installed to these pulleys (411 to 413), and a winding belt (415) that is spirally wound around the first belt (414) is installed on the rotary pulley (413).

The above rotary pulley (413) is formed with a diameter smaller than the diameter of the pulleys (411, 412), and a first rotary shaft (416) that transmits rotary force is installed on the rotary pulley (413).

In addition, in order for the first belt (414) to move stably, a plurality of guide pulleys (417) are installed on the first belt (414), a third pulley (421) is installed on the first rotation shaft (416), a fourth pulley (422) with a large diameter is installed spaced apart from the third pulley (421), and a second belt (423) is connected and installed between the third pulley (421) and the fourth pulley (422).

In addition, a second rotation shaft (424) is installed on the fourth pulley (422), and a second power transmission unit (430) is installed on the second rotation shaft (424).

The first sprocket (431) of the second power transmission unit (430) is installed on the second rotation shaft (424), a second sprocket (432) is installed at the bottom of the first sprocket (431), a third sprocket (433) having a small diameter is installed between the first sprocket (431) and the second sprocket (432), and a fourth sprocket (434) having a small diameter is installed at the bottom of the third sprocket (433).

A first chain (435) is connected and installed between the first sprocket (431) and the second sprocket (432), a second chain (436) is connected and installed between the second sprocket (432) and the third sprocket (433), a third chain (437) is connected and installed between the third sprocket (433) and the fourth sprocket (434), and a fourth chain (448) is connected and installed between the fourth sprocket (434) and the first sprocket (431).

A third rotation shaft (439) is installed on the fourth sprocket (434), a fifth sprocket (441) is installed on the third rotation shaft (439), a sixth sprocket (442) is installed spaced apart from the fifth sprocket (441), and a seventh sprocket (443) and an eighth sprocket (444) are installed between the fifth sprocket (441) and the second sprocket (442).

The above seventh sprocket (443) and eighth sprocket (444) are formed with a smaller number of teeth than the sprockets (441, 442), and a fifth chain (445) is connected and installed to the fifth sprocket (441) and sixth sprocket (442), and a sixth chain (446) is connected and installed to the sixth sprocket (442) and seventh sprocket (443).

In addition, a seventh chain (447) is connected and installed to the seventh sprocket (443) and the eighth sprocket (444), an eighth chain (448) is connected and installed to the eighth sprocket (444) and the first sprocket (441), and a fourth rotation shaft (449) is installed to the eighth sprocket (444).

A ninth sprocket (451) with a small diameter is installed on the fourth rotation shaft (449), a tenth sprocket (452) with a large diameter is installed spaced apart from the ninth sprocket (451), and a ninth chain (453) is connected and installed between the ninth sprocket (451) and the tenth sprocket (452).

A generator (461) is installed on one side of the above 10th sprocket (452), an AC transformer (462) that converts direct current generated by the generator (461) into alternating current is connected, a DC charger (463) that charges the power of the AC transformer (462) is connected, a DC battery (464) that stores the power of the DC charger (463) is connected, and an AC inverter (465) that converts the power of the DC battery (464) and supplies it to the motor (401) is installed.

In this way, the rotational force generated from the motor (401) of the first power transmission unit (410) rotates the first pulley (411), the second pulley (412) and the rotary pulley (413), and the rotary pulley (413) is formed with a diameter smaller than that of the pulleys (411, 412) and thus rotates at a faster speed than the pulleys (411, 412).

In addition, the third pulley (421) installed on the first rotation axis (416) rotates together with the rotation pulley (413), and the third pulley (421) rotates the fourth pulley (422) with a larger diameter and the second rotation axis (424). The fourth pulley (424) is formed with a diameter larger than that of the third pulley (421) and rotates with a torque larger than that of the third pulley (421).

Accordingly, the first sprocket (431) of the second power transmission unit (430) rotates, and the first sprocket (431) rotates the sprockets (432 to 434) by the chain (435 to 438). At this time, the third sprocket (433) is formed with a smaller number of teeth than the diameters of the sprockets (431, 432, 434) and rotates at a faster speed than the sprockets (431, 432, 434), and the fourth sprocket (434) with a larger number of teeth rotates at a greater torque than the third sprocket (433).

In addition, the fourth sprocket (434) rotates the fifth sprocket (441) to the eighth sprocket (444), and the third sprocket (433) with a smaller number of teeth rotates at a faster speed than the other sprockets (431, 432, 434), and the fourth sprocket (434) with a larger number of teeth rotates at a greater torque than the third sprocket (433).

In addition, the fourth sprocket (434) rotates the fifth sprocket (441), and the fifth sprocket (441) to the eighth sprocket (444) are rotated by the chain (445 to 448).

The seventh sprocket (443) and the eighth sprocket (444) of the above-mentioned number of teeth rotate at a faster speed than the fifth and sixth sprockets (443, 444), and the ninth sprocket (451) is rotated by the seventh sprocket (443).

The above 10th sprocket (452) rotates the generator (461) while being rotated by the 9th sprocket (451) and the 9th chain (453).

Power generated from the above generator (461) can be supplied to the motor (401) through an AC transformer (462), a DC charger (463), a DC battery (464), and an AC inverter (465).

FIG. 26 is an exploded three-dimensional view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention, FIG. 27 is an exploded three-dimensional view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention, and FIG. 28 is a three-dimensional view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention.

FIG. 29 is a three-dimensional view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention, FIG. 30 is a three-dimensional view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention, and FIG. 31 is a plan view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention.

As illustrated in FIGS. 26 to 31, a bicycle power transmission device according to the present invention includes a frame unit (510) having a shaft coupling hole (512) formed in a bicycle frame (511) to install a first pedal (518) and a second pedal (519), a first power transmission unit (530) installed on one side of the bicycle frame (511) to receive rotational power of the first pedal (518) and the second pedal (519), and a second power transmission unit (550) that receives rotational power from the first power transmission unit (530) to rotate a rear wheel.

A coupling shaft (513) is installed in the shaft coupling hole (512), a first shaft (514) is formed on one side of the coupling shaft (513) so that the first power transmission unit (530) is installed, a second shaft (515) is coupled to the first shaft (514) so that the second power transmission unit (550) is installed, and a pedal shaft (517) is rotatably coupled to the coupling hole (516) so that the first pedal (518) and the second pedal (519) are installed.

The first power transmission unit (530) has a first sprocket (531) coupled to the pedal shaft (517), a second sprocket (532) installed spaced apart from the first sprocket (531), a third sprocket (533) having a smaller number of teeth installed between the first sprocket (531) and the second sprocket (532), a fourth sprocket (535) rotatably installed on the first rotation shaft (520) to receive the rotational power of the third sprocket (533), and a fifth sprocket (536) rotatably installed on the coupling shaft (513).

The second power transmission unit (550) has an 11th sprocket (551) installed on the first shaft (514), a 12th sprocket (552) installed spaced apart from the 11th sprocket (551), a 13th sprocket (553) installed between the 11th sprocket (551) and the 12th sprocket (512), a 14th sprocket (555) having a smaller number of teeth is installed on one side of the 13th sprocket (553) so as to receive the rotational power of the 13th sprocket (553), a 15th sprocket (555) is installed spaced apart from the 14th sprocket (555) on the second shaft (515), and a 16th sprocket (561) is installed on the second shaft (515) so as to receive the rotational power of the 15th sprocket (555). is installed, and a 17th sprocket (562) is installed spaced apart from the 16th sprocket (561) to rotate the rear wheel of the bicycle.

The frame unit (510) of the above bicycle power transmission device (500) includes a bicycle frame (511), and a first pedal (518) and a second pedal (519) rotatably installed on each side of the bicycle frame (511).

A shaft coupling hole (512) with a predetermined diameter is formed in the above bicycle frame (511) so that a coupling shaft (513) can be coupled. A coupling shaft (513) composed of a plurality of shafts is installed in the shaft coupling hole (512).

The above-mentioned coupling shaft (513) is composed of a first shaft (514) rotatably coupled to a shaft coupling hole (512), a second shaft (515) rotatably coupled to the first shaft (514), and a pedal shaft (517) rotatably coupled to a coupling hole (516) of the first shaft (514).

The first shaft (514) is formed with a predetermined diameter, the second shaft (515) is formed with a diameter larger than the diameter of the first shaft (514), and is formed with a spaced length between the 11th sprocket (551) and the 14th sprocket (555) of the second power transmission unit (550).

A coupling hole (516) is formed in the first shaft (513) so that a pedal shaft (517) can be coupled thereto, and the pedal shaft (517) is rotatably coupled to the coupling hole (516).

The above pedal shaft (517) is formed with a spaced length of a first pedal (518) and a second pedal (519) installed on each of the left and right sides of the bicycle frame (511), and a first pedal (518) and a second pedal (519) are installed on each of the two sides of the pedal shaft (517).

The above pedal shaft (517) is rotated by the first pedal (518) and the second pedal (519).

In addition, a first rotating shaft (520) is installed on the bicycle frame (511) so that the third sprocket (533) and the fourth sprocket (536) of the first power transmission unit (530) and the 13th sprocket (553) and the 15th sprocket (556) of the second power transmission unit (550) can be installed.

In addition, a second rotating shaft (521) is installed on the bicycle frame (511) so that the second sprocket (532) of the first power transmission unit (531) and the 12th sprocket (552) of the second power transmission unit (550) can be installed.

These rotary shafts (520, 521) are rotatably installed in the bicycle frame (511).

The first sprocket (531) of the first power transmission unit (530) is coupled to a pedal shaft (517), a second sprocket (532) is installed at a predetermined distance from the first sprocket (531), a third sprocket (533) is installed between the first sprocket (531) and the second sprocket (532), and the first chain (534) is connected to the first to third sprockets (531 to 533).

The above third sprocket (533) is formed with a smaller number of teeth than the sprockets (531, 532) and rotates at a faster speed than the sprockets (531, 532).

The third sprocket (533) is rotatably installed on the first rotary shaft (520), and a fourth sprocket (535) that receives rotational power is installed on one side of the third sprocket (533), and the fourth sprocket (535) is formed with the same number of teeth as the third sprocket (533).

The above fifth sprocket (537) is rotatably connected to the first shaft (541), and a second chain (537) is connected and installed to the fourth sprocket (536) and the fifth sprocket (536).

Accordingly, the rotational power transmitted to the third sprocket (533) is transmitted to the fourth sprocket (535) and the fifth sprocket (536), and the fifth sprocket (536) rotates the first shaft (514) to transmit the rotational power of the first power transmission unit (530) to the second power transmission unit (550).

The 11th sprocket (551) of the second power transmission unit (550) is coupled to the second shaft (514), a 12th sprocket (552) spaced apart from the 11th sprocket (551) is installed, a 13th sprocket (553) having a smaller number of teeth is installed between the 11th sprocket (551) and the second sprocket (552), and a third chain (554) is connected and installed to the first to third sprockets (551 to 553).

In addition, the 12th sprocket (552) is rotatably coupled to the second rotary shaft (521), and the 13th sprocket (553) is rotatably coupled to the second rotary shaft (520).

A 14th sprocket (555) is rotatably installed on the inside of the 13th sprocket (553), and a 15th sprocket (556) is connected and installed on the second shaft (515) of the coupling shaft (513).

In addition, a 16th sprocket (561) having the same number of teeth as the 15th sprocket (556) is installed on the second shaft (515), a 17th sprocket (562) spaced apart from the 16th sprocket (561) is installed, and the 17th sprocket (562) is coupled to a rear wheel shaft (564) that rotates the rear wheel (not shown) of the bicycle.

The above first shaft (514) is rotated by the fifth sprocket (536) of the first power transmission unit (530), and the eleventh sprocket (551) of the second power transmission unit (550) coupled to the first shaft (541) is rotated.

Accordingly, the 11th sprocket (551) rotates the 12th and 13th sprockets (552, 553) by the third chain (554), and the 13th sprocket (553) rotates the 14th sprocket (555) and the 15th sprocket (556).

Meanwhile, the 13th sprocket (553) and the 14th sprocket (555) are formed with a smaller number of teeth, so they rotate at a faster speed than the other sprockets (551, 552, 556).

Meanwhile, the 15th sprocket (116) formed with a greater number of teeth than the 14th sprocket (555) rotates with a greater torque than the 14th sprocket (555).

The above 15th sprocket (556) rotates the second shaft (515), which in turn rotates the 16th sprocket (561), which in turn rotates the 17th sprocket (562), which in turn rotates the rear wheel shaft (564), thereby rotating the rear wheel (not shown) of the bicycle.

FIG. 32 is an exploded three-dimensional view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention, FIG. 33 is a three-dimensional view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention, FIG. 34 is a three-dimensional view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention, and FIG. 35 is a plan view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention.

As illustrated in FIGS. 32 to 35, a bicycle power transmission device according to an embodiment of the present invention includes a frame unit (610) having shaft coupling holes (612) formed on both sides of a bicycle frame (611) so that a first pedal (618) and a second pedal (619) are installed, a first power transmission unit (630) installed on one side of the bicycle frame (611) so as to receive rotational power of the first pedal (618) and the second pedal (919), and a second power transmission unit (650) that receives rotational power from the first power transmission unit (630) and rotates the rear wheel.

A coupling shaft (613) is installed in the shaft coupling hole (612), a first power transmission unit (630) is installed in a first shaft (614) on one side of the coupling shaft (613), a second power transmission unit (650) is installed in a second shaft (614) on the other side of the coupling shaft (613), and a pedal shaft (617) is rotatably coupled to the coupling hole (616) so that the first pedal (618) and the second pedal (619) are installed.

The first power transmission unit (630) has a first sprocket (631) installed on one side of the pedal shaft (617) of the frame unit (610), a second sprocket (632) having a smaller number of teeth than the first sprocket (631) is installed away from the first sprocket (631), a third sprocket (633) is installed away from the first sprocket (631), and a fourth sprocket (634) is installed away from the second sprocket (632).

A first chain (635) is connected and installed to the first sprocket (631) and the second sprocket (632), a second chain (636) is connected and installed to the second sprocket (632) and the third sprocket (633), a third chain (637) is connected and installed to the third sprocket (633) and the fourth sprocket (634), and a fourth chain (638) is connected and installed to the fourth sprocket (634) and the first sprocket (631).

The second power transmission unit (650) has a fifth sprocket (651) installed on one side of the second shaft (614) of the frame unit (610), a sixth sprocket (652) having a smaller number of teeth than the fifth sprocket (651) is installed apart from the fifth sprocket (651), a seventh sprocket (653) is installed on the other side of the second shaft (614) apart from one side of the fifth sprocket (651), and an eighth sprocket (651) is installed apart from the sixth sprocket (652).

A fifth chain (655) is connected and installed to the fifth sprocket (651) and the sixth sprocket (652), a sixth chain (656) is connected and installed to the sixth sprocket (652) and the seventh sprocket (653), a seventh chain (657) is connected and installed to the seventh sprocket (653) and the eighth sprocket (651), and an eighth chain (658) is connected and installed to the eighth sprocket (651) and the fifth sprocket (651).

As shown in FIGS. 32 to 35, a shaft coupling hole (612) is formed in the bicycle frame (611) of the frame unit (610) so that pedals (618, 619) can be rotatably installed.

The above coupling shaft (613) is rotatably installed in a shaft coupling hole (612), and the coupling shaft (613) is composed of a first shaft (614) formed to a predetermined length, a second shaft (614) rotatably coupled to one side of the first shaft (614), and a coupling hole (616) in which a pedal shaft (617) can be installed in the shafts (614, 615).

That is, the pedal shaft (617) is rotatably coupled to the coupling hole (616), and the coupling shaft (613) is rotatably coupled to the shaft coupling hole (612).

In addition, a first pedal (618) is coupled to one side of the pedal shaft (617), and a second pedal (619) is coupled to the other side of the pedal shaft (617).

The first sprocket (631) of the first power transmission unit (630) is coupled to a pedal shaft (617), the second sprocket (632) is installed spaced apart from the first sprocket (631), and the third sprocket (633) is rotatably coupled to the first shaft (614) of the coupling shaft (613).

In addition, the fourth sprocket (634) is installed at a predetermined distance from the second sprocket (632).

Meanwhile, a first chain (635) is connected and installed between the first sprocket (631) and the second sprocket (632), a second chain (636) is connected and installed between the second sprocket (632) and the third sprocket (633), a third chain (637) is connected and installed between the third sprocket (633) and the fourth sprocket (634), and a fourth chain (638) is connected and installed between the fourth sprocket (634) and the first sprocket (631).

Accordingly, the first shaft (614) is rotated by the third sprocket (633) and transmits the rotational power of the first power transmission unit (630) to the second power transmission unit (650).

The fifth sprocket (651) of the second power transmission unit (650) is installed on the second shaft (614), the sixth sprocket (652) is installed spaced apart from the fifth sprocket (651), the third sprocket (653) is installed on the second shaft (614), and the eighth sprocket (654) is installed spaced apart from the second sprocket (652) by a predetermined distance.

In this type of bicycle power transmission device, the pedal shaft (617) is rotated by the first pedal (618) and the second pedal (619), and the pedal shaft (617) rotates the first sprocket (631) of the first power transmission unit (630).

The second sprocket (632), the third sprocket (633), and the fourth sprocket (634) are rotated by the first sprocket (631), and the first shaft (614) is rotated by the third sprocket (633).

Accordingly, the fifth sprocket (651) of the second power transmission unit (650) rotates, the sixth sprocket (652), the seventh sprocket (653), and the eighth sprocket (654) rotate, and the axis of the rear wheel of the bicycle (not shown) rotates by the eighth sprocket (658).

In this way, the rotation speed can be increased by the second sprocket (632) and the sixth sprocket (652) with fewer teeth, and the rear wheel of the bicycle can be rotated with a large torque by the sprockets (631, 633, 634, 651, 653, 654) with more teeth.

FIG. 36 is a three-dimensional view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention, and FIG. 37 is an exploded three-dimensional view illustrating a bicycle power transmission device according to a preferred embodiment of the present invention.

As shown in FIG. 36 and FIG. 37, the bicycle power transmission device of the present invention comprises a bicycle frame (701) having a first pedal and a second pedal installed on both sides of the bicycle frame, a coupling shaft (703) installed on the first pedal and the second pedal, a first power transmission unit (710) and a second power transmission unit (720) installed on one side of the coupling shaft (703), and a third power transmission unit (730), a fourth power transmission unit (740), and a fifth power transmission unit (750) installed on the other side of the coupling shaft (703), and a first power transmission unit (710) and a second power transmission unit (720) for transmitting the rotational power of the pedal are installed on one side of the coupling shaft (703), and a third power transmission unit (750) for transmitting the rotational power of the pedal is installed on the other side of the coupling shaft (703). A power transmission unit (730), a fourth power transmission unit (740), and a fifth power transmission unit (750) are installed.

A pedal shaft (702) having a predetermined length is installed on the above bicycle frame (701), and two pedals (618, 619, see Figure 35) are installed on both ends of the pedal shaft (702).

A coupling shaft (703) is installed on the outer surface of the pedal shaft (702), and the pedal shaft (702) is formed in a hollow shape so that it can be rotatably coupled inside the coupling shaft (702).

In addition, a frame coupling part (704) is formed on the above coupling shaft (703) so that it can be coupled to a bicycle frame (701), a first shaft (705) to which a first power transmission unit (710) is coupled is formed on one side of the frame coupling part (704), and a second shaft (706) to which a second power transmission unit (720) is coupled is formed on one side of the first shaft (705).

In addition, a third shaft (707) to which a third power transmission unit (730) is coupled is formed on the other side of the above-mentioned coupling shaft (703), and a fourth shaft (708) to which a fourth power transmission unit (740) is coupled is formed on the other side of the third shaft (707).

That is, a first power transmission unit (710) that transmits the rotational power of the pedal to the rear wheel (not shown) is installed on the first shaft (705), a second power transmission unit (720) is installed on the second shaft (706), a third power transmission unit (730) is installed on the third shaft (707), and a fourth power transmission unit (740) and a fifth power transmission unit (750) are installed on the fourth shaft (708).

The first power transmission unit (710) is configured with a third timing gear (713) having a small diameter rotatably coupled between a first timing gear (711) and a second timing gear (712) having a large diameter, and a first timing belt (714) that rotatably couples the dimming gears (711, 712, 713) is installed, and the second power transmission unit (720) is configured with a fourth timing gear (721) having a small diameter so as to receive rotational power from the third timing gear (713), and a fifth timing gear (722) that is spaced apart from the fourth timing gear (721) and coupled to a coupling shaft (703) so as to transmit the rotational power of the first power transmission unit (710) to the third power transmission unit (730).

The above first power transmission unit (710) is composed of a pair of first timing gears (711) and second timing gears (712) having large diameters, a third timing gear (713) rotatably installed between the pair of timing gears (711, 712), and a timing belt (714) that rotates the timing gears (711, 712, 713).

The third timing gear (713) is formed with a diameter smaller than the diameters of the pair of timing gears (711, 712), and the third timing gear (713) is rotatably installed between the pair of timing gears (711, 712).

In addition, a first timing belt (714) is installed on the outer surface of the above timing gears (711, 712, 713), and a first rotation shaft (715) is installed on the third timing gear (713) to transmit rotational power to the second power transmission unit (720).

A second power transmission unit (720) that transmits rotational force is installed on one side of the first rotation shaft (715), and a fourth timing gear (721) of the second power transmission unit (720) is rotatably installed on the first rotation shaft (715).

This fourth timing gear (721) is formed to have the same size as the third timing gear (713), and the fifth timing gear (722) of the second power transmission unit (720) is rotatably installed on the second shaft (706) of the coupling shaft (703).

That is, the first power transmission unit (710) rotates the first shaft (705) by the rotation of the pedal, and the second shaft (706) rotates by the fifth timing gear (722) of the second power transmission unit (720).

The second shaft (706) rotates the third shaft (707), and the second shaft (706) and the third shaft (707) may be formed as one shaft.

The third power transmission unit (730) has a third timing gear (733) with a small diameter coupled between the sixth timing gear (731) and the seventh timing gear (732) installed on the coupling shaft (703), and a second rotation shaft (735) that transmits rotational power to the fourth power transmission unit (740) is installed on the third timing gear (733).

The above fourth power transmission unit (740) is composed of a small diameter first sprocket (741) that receives rotational power from a second rotation shaft (735) and a second sprocket (742) that is rotatably coupled to the coupling shaft (703).

The third sprocket (751) of the fifth power transmission unit (750) is rotatably coupled to the coupling shaft (703), and the fourth sprocket (752) spaced apart from the third sprocket (751) is rotatably coupled to the rear wheel axle.

A third power transmission unit (730) that receives rotational power from a second power transmission unit (730) is installed at the tip end of the third shaft (707). A sixth timing gear (731) of the third power transmission unit (730) is installed on the third shaft (707).

The sixth timing gear (731) and the seventh timing gear (732) of the third power transmission unit (730) are formed with the same diameter, and the eighth timing gear (733) is formed with a diameter smaller than the diameters of the timing gears (731, 732).

The above eighth timing gear (733) is rotatably installed between a pair of timing gears (731, 732), and a third timing belt (734) that transmits rotational force is installed in the timing gears (731, 732, 733).

In addition, a second rotation shaft (735) is installed on the above-mentioned 8th timing gear (734) to transmit rotational power to the fourth power transmission unit (740), and a fourth power transmission unit (740) is installed on the second rotation shaft (735).

The first sprocket (741) of the fourth power transmission unit (740) is coupled to the second rotation shaft (735), and the first sprocket (741) is formed with a small diameter, the same as that of the eighth timing belt (734), and a second sprocket (742) having a diameter larger than that of the first sprocket (741) is installed on the fourth shaft (708).

A first chain (743) is installed on the first sprocket (741) and the second sprocket (742).

In addition, a fifth power transmission unit (750) is installed on the fourth shaft (708), and a third sprocket (751) of the fifth power transmission unit (750) is installed close to the bicycle frame (701).

The fourth sprocket (752) of the fifth power transmission unit (750) is rotatably connected to the rear wheel axle (not shown), and a second chain (753) is installed on the third sprocket (751) and the fourth sprocket (752).

In this type of bicycle power transmission device, the first shaft (705) coupled to the pedal shaft (702) rotates by the rotation of the pedal, thereby rotating the first timing gear (711) of the first power transmission unit (710).

The second timing gear (712) and the third timing gear (713) of the first power transmission unit (710) rotate, and as the first rotation shaft (715) rotates by the third timing gear (713), rotational power is transmitted to the second power transmission unit (720).

The fifth timing gear (722) of the second power transmission unit (720) rotates the second shaft (706) and the third shaft (707), and the third shaft (707) rotates the sixth timing gear (731) of the third power transmission unit (730).

In addition, the eighth timing gear (733) of the third power transmission unit (730) rotates the second rotation shaft (735), the second rotation shaft (735) rotates the first sprocket (741) of the fourth power transmission unit (740), and the second sprocket (742) of the fourth power transmission unit (740) rotates the fourth shaft (708).

As the third sprocket (751) of the fifth power transmission unit (750) coupled to the fourth shaft (708) rotates, the fourth sprocket (752) installed on the rear wheel axle (not shown) is rotated, thereby rotating the rear wheel of the bicycle.

In this way, the third timing gear (713) of the first power transmission unit (710) and the fourth timing gear (741) of the second power transmission unit (720) are formed with a smaller diameter than the other timing gears (711, 712, 722) and rotate at a high speed, while the timing gears (711, 712, 722) with a larger diameter increase the torque.

In addition, the rotation speed of the third power transmission unit (730), the fourth power transmission unit (740), and the fifth power transmission unit (750) can be increased by the small-diameter eighth timing gear (733) and the first sprocket (741), and the torque can be increased by the large-diameter timing gears (731, 732), the second sprocket (742), and the third sprocket (751).

Although the invention made by the present inventor has been specifically described according to the above embodiments, the present invention is not limited to the above embodiments and can be modified in various ways without departing from the spirit thereof.

Claims (20)

A third power transmission unit (135) comprising a first timing gear (131) that receives rotational power from a motor, a second timing gear (132) that is installed at a predetermined distance from the first timing gear (131), a power transmission gear (133) that is installed between the first timing gear (131) and the second timing gear (132) and transmits rotational power, and a timing belt (134) that is connected to the first timing gear (131) and the second timing gear (132); It is composed of a second power transmission unit (140) including a fixed shaft (136) fixed to a power transmission gear (133) of the above power transmission unit (135), a first pulley (137) fixed to the fixed shaft (136), a second pulley (138) spaced apart from the first pulley (117) by a predetermined distance, and a ming belt (139) coupled to the first pulley (137) and the second pulley (138). A power transmission device characterized in that the above fixed shaft (136) is fixed to the power transmission gear (133) and transmits the rotational power of the first power transmission unit (135) to the second power transmission unit (140). A first power transmission unit (178) comprising a first pulley (171) for receiving rotational power of a motor, a second pulley (172) installed spaced apart from the first pulley (171), a power transmission pulley (173) installed to transmit rotational power between the first pulley (171) and the second pulley (172), a rotational shaft (174) installed on the power transmission pulley (173), a first belt (175) installed in a spiral-shaped manner on the first and second pulleys (171, 172) and the power transmission pulley (173), and a plurality of first guides (176) and second guides (177) for guiding the movement of the first belt (175) so that the first belt (175) can move stably; A power transmission device characterized by comprising a third pulley (181) installed on a rotation shaft (174) rotated by the power transmission pulley (173) and rotatably installed by the power transmission pulley (173), a fourth pulley (182) installed at a predetermined distance from the third pulley (181), and a second power transmission unit (184) in which a second belt (183) is installed on the third pulley (181) and the fourth pulley (182). In the second paragraph, A power transmission device characterized in that the power transmission pulley (173) is formed with a spiral winding part (175a) that is wound around the power transmission pulley (173) so that the power transmission pulley (173) can rotate equally by the rotational force of the first pulley (171) and the second pulley (172). A first sprocket (231) that receives power from a motor is rotatably installed, a second sprocket (232) is installed spaced apart from the first sprocket (231) by a predetermined distance, a third sprocket (233) having a smaller number of teeth than the sprockets (231, 232) is installed between the first sprocket (231) and the second sprocket (232), and a fourth sprocket (234) formed with the same number of teeth as the second sprocket (232) is installed spaced apart from the second sprocket (232) by a predetermined distance. A first chain (235) is connected and installed between the first sprocket (231) and the second sprocket (232), a second chain (236) is connected and installed between the second sprocket (232) and the third sprocket (233), and a fourth chain (238) is connected and installed between the third sprocket (233) and the fourth sprocket (234). A power transmission device characterized in that a rotary shaft (239) that transmits rotary power to the second sprocket (232) is installed, a fifth sprocket (240) is installed on the rotary shaft (239) to rotate together with the second sprocket (232), and the fifth sprocket (240), which receives the rotary power of the third sprocket (233), rotates with an increased torque. A power generation device using a power transmission device, characterized in that it comprises a first power transmission unit (312) that receives the rotational power of a motor (311), a second power transmission unit (317) that receives the power of the first power transmission unit (312), a third power transmission unit (323) that receives the power of the second power transmission unit (317), a fourth power transmission unit (327) that receives the power of the third power transmission unit (323), a fifth power transmission unit (331) that receives the power of the fourth power transmission unit (327), a sixth power transmission unit (336) that receives the power of the fifth power transmission unit (331), and a generator (340) that is rotated by the sixth power transmission unit (336). In paragraph 5, The above first power transmission unit (312) is composed of a first pulley (313) having a small diameter, a second pulley (314) formed with a diameter larger than that of the first pulley (313) and spaced apart from the first pulley (313) by a predetermined distance, a first belt (315) coupled to the first pulley (313) and the second pulley (314), and a first rotational shaft (316) rotatably coupled to the second pulley (314). The second power transmission unit (317) is rotatably coupled to the first rotation shaft (316) and is formed with a third pulley (318) having the same diameter as the second pulley (314), a fourth pulley (319) spaced apart from the third pulley (318) by a predetermined distance and having the same diameter as the third pulley (318), a second belt (320) coupled to the third pulley (318) and the fourth pulley (319), a second rotation shaft (321) coupled to the fourth pulley (319), and a third rotation shaft (322) rotatably coupled to the sixth pulley (325). A power generation device using a power transmission device, characterized in that the third power transmission unit (323) comprises a fifth pulley (324) coupled to a second rotation shaft (321) installed in the second power transmission unit (317), a sixth pulley (325) formed with a smaller diameter than the fifth pulley (324) and installed spaced apart from the fifth pulley (324) by a predetermined distance, and a third belt (326) coupled to the fifth pulley (324) and the sixth pulley (325). In paragraph 5, The above fourth power transmission unit (327) is composed of a seventh pulley (328) rotatably installed on a first rotational axis (316), an eighth pulley (329) rotatably installed on a third rotational axis (322) spaced apart from the seventh pulley (328) by a predetermined distance, and a fourth belt (330) coupled to the seventh pulley (328) and the eighth pulley (329). The seventh pulley (328) is formed with the same diameter as the third pulley (318), and the eighth pulley (329) is formed with a smaller diameter than the seventh pulley (328). The above fifth power transmission unit (331) is composed of a ninth pulley (332) installed on a third rotation shaft (322), a tenth pulley (333) installed at a predetermined distance from the eighth pulley (329), a fifth belt (334) coupled to the ninth pulley (332) and the tenth pulley (333), and a fourth rotation shaft (335) rotatably coupled to the tenth pulley (333). The above sixth power transmission unit (336) is composed of an eleventh pulley (337) rotatably coupled to a fourth rotation shaft (335), a twelfth pulley (338) installed at a predetermined distance from the eleventh pulley (337), and a sixth belt (339) coupled to the eleventh pulley (337) and the twelfth pulley (338). A power generation device using a power transmission device characterized in that a generator (340) is installed on the above 12th pulley (338). A first power transmission unit (360a) that receives power from a motor (351), a second power transmission unit (365a) that receives power from the first power transmission unit (360a), a third power transmission unit (360b) that is configured identically to the first power transmission unit (360a) and receives power from the second power transmission unit (365a), and a fourth power transmission unit (365b) that is configured identically to the second power transmission unit (365a) and receives power from the third power transmission unit (360b). A power generation device using a power transmission device, characterized by including a fifth power transmission unit (370) that receives power from the fourth power transmission unit (365b) and increases the rotational speed and torque to rotate the generator (390). In Article 8, The first power transmission unit (360a) and the second power transmission unit (360b) are configured to include a first pulley (352) installed on a motor (351), a second pulley (353) formed with a larger diameter than the first pulley (352) and spaced apart from the first pulley (352), a first belt (354) coupled to the first pulley (352) and the second pulley (353), a first timing gear (355) installed on one side of the second pulley (353) and formed with the same diameter as the second pulley (353), a second timing gear (356) formed with the same diameter as the first timing gear (355) and spaced apart from it, a third timing gear (357) installed to mesh with each other between the first timing gear (355) and the second timing gear (356), and the first It consists of a first timing belt (358) coupled to a timing gear (355) and a second timing gear (356). A power generation device using a power transmission device, characterized in that the second power transmission unit (365a) and the fourth power transmission unit (365b) are formed by a fourth timing gear (362) installed on a first rotation shaft (361) fixed to the third timing gear (357), and a fifth timing gear (363) formed with a diameter larger than that of the fourth timing gear (362) and spaced apart from the fourth timing gear (362). In Article 8, A power generation device using a power transmission device, characterized in that a first power transmission unit (360a) is installed in the above motor (351), a second power transmission unit (365a) is installed on one side of the first power transmission unit (360a), a third power transmission unit (360b) is installed on one side of the second power transmission unit (365a), and a fourth power transmission unit (365b) is installed on one side of the third power transmission unit (365b). In Article 8, The fifth power transmission unit (370) has a second rotation shaft (371) installed on the second timing belt (364) of the fourth power transmission unit (365b), a third pulley (372) installed on the second rotation shaft (371), a fourth pulley (373) having a diameter smaller than that of the third pulley (372) is installed spaced apart from the third pulley (372), a third rotation shaft (375) is installed on the fourth pulley (373), a fifth pulley (376) is installed adjacent to the third pulley (372), a sixth pulley (377) having the same diameter as that of the fifth pulley (376) is installed spaced apart from the fifth pulley (376), and a fourth rotation shaft (379) is installed on the sixth pulley (377). A seventh pulley (380) having the same diameter as the fourth pulley (373) is installed on the third rotation axis (375) and spaced apart from the fourth pulley (373), an eighth pulley (381) having the same diameter as the sixth pulley (377) is installed on the fourth rotation axis (379), a ninth pulley (383) having the same diameter as the fourth pulley (373) is installed on the third rotation axis (375), and a tenth pulley (384) having the same diameter as the sixth pulley (377) is installed on the third rotation axis (375). A power generation device and a bicycle power transmission device using a power transmission device, characterized in that a fourth rotation shaft (379) is installed on the above-mentioned 10th pulley (384), an 11th pulley (387) having the same diameter as the 10th pulley (384) is installed on the above-mentioned 4th rotation shaft (379), a 12th pulley (389) having a smaller diameter than the 11th pulley (387) is installed spaced apart from the 11th pulley (387), and a generator (390) is installed on the 12th pulley (389). A power generation device using a power transmission device, characterized in that it comprises a first power transmission unit (410) formed of a plurality of pulleys and belts with different diameters for transmitting the rotational power of a motor (401) to a second power transmission unit (430), a second power transmission unit (430) which receives the rotational power of the first power transmission unit (410) and rotates a generator (461), a generator (461) which is rotated by the second power transmission unit (430) to generate electric power, an AC transformer (462) which converts the current of the generator (461), a DC charger (463) which charges the current of the AC transformer (462), a DC battery (464) which stores the current of the DC charger (463), and an AC inverter (465) which resupplies the power of the DC battery (464) to the motor (401). In Article 12, The first power transmission unit (410) is characterized in that a first pulley (411) is installed to be rotatable by a motor (401), a second pulley (412) is installed spaced apart from the first pulley (411), a small-diameter rotary pulley (413) is installed between the first pulley (411) and the second pulley (412), a first belt (414) is connected and installed between the first pulley (411) and the second pulley (412), a first rotary shaft (416) is installed on the rotary pulley (413), a third pulley (421) having the same diameter as the rotary pulley (413) is installed on the first rotary shaft (416), a fourth pulley (422) having a large diameter is installed spaced apart from the third pulley (421), and a second rotary shaft (424) is installed on the fourth pulley (422). Power generation device used. In Article 12, The second power transmission unit (430) has a first sprocket (431) installed on the second rotation shaft (424) of the first power transmission unit (410), a second sprocket (432) installed spaced apart from the first sprocket (431), a third sprocket (433) having a small diameter is installed between the first sprocket (431) and the second sprocket (432), a fourth sprocket (434) is installed below the third sprocket (433), a chain (434-438) is connected and installed to the first to fourth sprockets (431-434), and a third rotation shaft (439) is installed on the fourth sprocket (434). A fifth sprocket (441) is installed on the third rotation shaft (439), a sixth sprocket (442) is installed spaced apart from the fifth sprocket (441), a seventh sprocket (443) having a small diameter is installed between the fifth sprocket (441) and the sixth sprocket (442), an eighth sprocket (444) is installed spaced apart from the seventh sprocket (443), chains (445-448) are installed on the fifth to eighth sprockets (441-444), and a fourth rotation shaft (449) is installed on the eighth sprocket (444). A ninth sprocket (451) with a small diameter is installed on the fourth rotation shaft (449), and a tenth sprocket (452) with a large diameter is installed spaced apart from the ninth sprocket (451). A power generation device using a power transmission device characterized in that a generator (461) is installed on the above 10th sprocket (452). A frame unit (610) having shaft coupling holes (612) formed on both sides of a bicycle frame (611) so that a first pedal (618) and a second pedal (619) are installed; A first power transmission unit (630) installed on one side of the bicycle frame (611) so as to receive the rotational power of the first pedal (618) and the second pedal (919); It includes a second power transmission unit (650) that receives rotational power from the first power transmission unit (630) and rotates the rear wheels; A bicycle power transmission device characterized in that a coupling shaft (613) is installed in the shaft coupling hole (612), a first power transmission unit (630) is installed in a first shaft (614) on one side of the coupling shaft (613), a second power transmission unit (650) is installed in a second shaft (614) on the other side of the coupling shaft (613), and a pedal shaft (617) is rotatably coupled to the coupling hole (616) so that the first pedal (618) and the second pedal (619) are installed. In Article 15, The first power transmission unit (630) has a first sprocket (631) installed on one side of the pedal shaft (617) of the frame unit (610), a second sprocket (632) having a smaller number of teeth than the first sprocket (631) is installed away from the first sprocket (631), a third sprocket (633) is installed away from the first sprocket (631), and a fourth sprocket (634) is installed away from the second sprocket (632). A bicycle power transmission device characterized in that a first chain (635) is connected and installed to the first sprocket (631) and the second sprocket (632), a second chain (636) is connected and installed to the second sprocket (632) and the third sprocket (633), a third chain (637) is connected and installed to the third sprocket (633) and the fourth sprocket (634), and a fourth chain (638) is connected and installed to the fourth sprocket (634) and the first sprocket (631). In Article 15, The second power transmission unit (650) has a fifth sprocket (651) installed on one side of the second shaft (614) of the frame unit (610), a sixth sprocket (652) having a smaller number of teeth than the fifth sprocket (651) is installed apart from the fifth sprocket (651), a seventh sprocket (653) is installed on the other side of the second shaft (614) apart from one side of the fifth sprocket (651), and an eighth sprocket (654) is installed apart from the sixth sprocket (652). A bicycle power transmission device characterized in that a fifth chain (655) is connected and installed to the fifth sprocket (651) and the sixth sprocket (652), a sixth chain (656) is connected and installed to the sixth sprocket (652) and the seventh sprocket (653), a seventh chain (657) is connected and installed to the seventh sprocket (653) and the eighth sprocket (654), and an eighth chain (658) is connected and installed to the eighth sprocket (654) and the fourth sprocket (651). A bicycle frame (701) is provided, in which a first pedal and a second pedal are installed on both sides of the bicycle frame, a pedal shaft (702) to which the first pedal and the second pedal are fixed is coupled internally, a coupling shaft (703), and a first power transmission unit (710) and a second power transmission unit (720) are installed on one side, and a third power transmission unit (730), a fourth power transmission unit (740), and a fifth power transmission unit (750) are installed on the other side, are rotatably coupled, On one side of the above-mentioned coupling shaft (703), a first power transmission unit (710) and a second power transmission unit (720) that transmit the rotational power of the pedal are installed. A bicycle power transmission device characterized in that a third power transmission unit (730), a fourth power transmission unit (740), and a fifth power transmission unit (750) that transmit the rotational power of the pedal are installed on the other side of the above-mentioned coupling shaft (703). In Article 18, The first power transmission unit (710) has a third timing gear (713) with a small diameter rotatably connected between a first timing gear (711) with a large diameter and a second timing gear (712), and a first timing belt (714) that rotatably connects the dimming gears (711, 712, 713) is installed. A bicycle power transmission device characterized in that the second power transmission unit (720) comprises a fourth timing gear (721) having a small diameter so as to receive rotational power from a third timing gear (713), and a fifth timing gear (722) coupled to a coupling shaft (703) spaced apart from the fourth timing gear (721) and coupled to the coupling shaft (703) so as to transmit the rotational power of the first power transmission unit (710) to the third power transmission unit (730). In Article 18, The third power transmission unit (730) has a third timing gear (733) with a small diameter coupled between the sixth timing gear (731) and the seventh timing gear (732) installed on the coupling shaft (703), and a second rotation shaft (735) that transmits rotational power to the fourth power transmission unit (740) is installed on the third timing gear (733). The above fourth power transmission unit (740) is composed of a first sprocket (741) of small diameter that receives rotational power from a second rotational shaft (735) and a second sprocket (742) that is rotatably coupled to the coupling shaft (703). A bicycle power transmission device, characterized in that the third sprocket (751) of the fifth power transmission unit (750) is rotatably coupled to the coupling shaft (703), and the fourth sprocket (752) spaced apart from the third sprocket (751) is rotatably coupled to the rear wheel axle.

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