[go: up one dir, main page]

WO2012108710A2 - Front-wheel-drive bicycle - Google Patents

Front-wheel-drive bicycle Download PDF

Info

Publication number
WO2012108710A2
WO2012108710A2 PCT/KR2012/000989 KR2012000989W WO2012108710A2 WO 2012108710 A2 WO2012108710 A2 WO 2012108710A2 KR 2012000989 W KR2012000989 W KR 2012000989W WO 2012108710 A2 WO2012108710 A2 WO 2012108710A2
Authority
WO
WIPO (PCT)
Prior art keywords
front wheel
handle
coupled
electric gear
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2012/000989
Other languages
French (fr)
Korean (ko)
Other versions
WO2012108710A3 (en
Inventor
나필수
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020120013108A external-priority patent/KR20120092516A/en
Application filed by Individual filed Critical Individual
Publication of WO2012108710A2 publication Critical patent/WO2012108710A2/en
Publication of WO2012108710A3 publication Critical patent/WO2012108710A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/12—Rider propulsion of wheeled vehicles operated by both hand and foot power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M23/00—Transmissions characterised by use of other elements; Other transmissions

Definitions

  • the present invention relates to a bicycle capable of driving the front wheel, and more specifically, when the occupant rotates the handle repeatedly from side to side, the left and right rotational movements of the handle are transmitted to the front wheel through the front wheel drive unit so that the front wheel drive is driven in the forward direction. It's about a possible bike.
  • the bike will ride where the occupant sits on the saddle, grabs the handle of the handlebars, and pedals with his feet to turn the wheels.
  • Bicycles typically have two front and rear wheels, but some bikes have three or four wheels for children or the elderly.
  • the conventional bicycle is a rear wheel driving method in which the kinetic energy of stepping on the pedal is transmitted to the rear wheel through a power transmission means such as a chain, and the rear wheel drives forward.
  • a power transmission means such as a chain
  • the bicycle of the rear-wheel drive type because the occupant uses only the leg strength, so that only the lower body is intensively exercised, there is a problem that the occupant feels severe fatigue on the leg when riding for a long time.
  • the taste of passengers has diversified in recent years, they have become tired of bicycles that can only drive rear wheels. Accordingly, research on bicycles capable of driving the front wheels is being actively conducted.
  • the front wheel drive bicycle has to add a separate auxiliary drive device for driving the front wheel to the handle, the appearance of the bicycle is not neat, there is a problem that the bicycle is heavy and the handle operation is inconvenient.
  • An object of the present invention is to provide a bicycle capable of driving the front wheel by using the left and right rotation of the steering wheel with little difference in appearance from the conventional rear wheel drive bicycle.
  • Another object of the present invention is to provide a bicycle capable of driving the front wheel that can transmit the power to the front wheels through the force of the arm independently of the operation of providing power to the rear wheels through the legs.
  • Another object of the present invention is to provide a bicycle capable of driving the front wheel, which is easy to switch between the use of the left and right rotation of the steering wheel for front wheel drive and the use for turning the bicycle, thereby improving driving efficiency and driving convenience.
  • the bicycle capable of driving the front wheel includes a body, a handle, a front wheel support, a front wheel fork, a front wheel drive.
  • the body is located at the front handle engaging portion and the rear wheel is rotatably coupled.
  • the handle has a handle shaft which is rotatably coupled to the handle engaging portion of the body and a handle formed branched from both sides at an upper end of the handle shaft.
  • the front wheel support portion is located under the handle coupling portion to rotatably penetrate the handle shaft.
  • the front wheel fork is connected to the front wheel support, and the front wheel is rotatably coupled.
  • the front wheel drive unit connects the handle shaft and the front wheel, and converts the left and right rotation of the handle into the forward rotation of the front wheel.
  • the front wheel drive of the bicycle capable of driving the front wheel may be provided with a driving unit, a first electric gear, a second electric gear, a front wheel gear, a one-way clutch.
  • the drive unit is coupled to the lower end of the handle shaft.
  • the first electric gear is coupled to the upper portion of the front wheel fork and connected to the driving unit.
  • the second electric gear is coupled to the lower part of the front wheel fork.
  • the front wheel gear is connected to the second electric gear and drives the front wheel.
  • the one-way clutch transmits the rotation of the drive unit to rotate only in the direction in which the front wheels advance.
  • the front wheel fork is rotatably coupled to the front end of the front wheel support and to the central axis of the front wheel.
  • the front wheel drive of the bicycle capable of driving the front wheel may be provided with a driving unit, a first electric gear, a second electric gear, a front wheel gear, a power transmission unit, a one-way clutch.
  • the drive unit is coupled to the lower end of the handle shaft.
  • the first electric gear is rotatably coupled to the upper portion of the front wheel fork and connected to the driving unit.
  • the second electric gear is rotatably coupled to the lower portion of the front wheel fork.
  • the front wheel gear is connected to the second electric gear and drives the front wheel.
  • the power transmission unit is coupled to the first electric gear and the second electric gear to transmit rotation of the first electric gear to the second electric gear.
  • the one-way clutch transmits the rotation of the drive unit to rotate only in the direction in which the front wheels advance.
  • the front wheel drive of the bicycle capable of driving the front wheel may include a pair of one-way clutches respectively located on both sides of the front wheel. In this case, only one side one-way clutch transmits power when the handle is rotated to the left, and only one side one-way clutch transmits power when the handle is to the right.
  • Bicycle capable of driving the front wheels may further include a coupling adjustment unit.
  • the engagement adjustment unit selectively couples the front wheel support to the handle coupling and the front wheel drive.
  • the front wheel support portion is coupled to the handle engaging portion, the front wheel is driven by the front of the handle, and when the front wheel support portion is coupled to the front wheel drive portion, the direction of the bicycle can be changed by left and right rotation of the handle.
  • the front wheel support of the bicycle capable of driving the front wheel may be provided with a coupling adjustment groove and a support shaft.
  • Coupling adjustment groove is formed on the outer peripheral surface of the front wheel support.
  • the support shaft is located inside the coupling adjustment groove, and the hole is formed up and down.
  • the engagement adjusting portion is coupled to the hole formed in the support shaft so as to be movable up and down.
  • the bicycle capable of driving the front wheel of the present invention may drive the front wheel by using left and right rotation of the handle, and thus does not include an auxiliary device for driving the front wheel separately. Therefore, the appearance is almost similar to the conventional rear-wheel drive bicycle, so that existing passengers can easily ride, and the weight of the bicycle is light.
  • the bicycle capable of driving the front wheel of the present invention selectively couples or separates the front wheel support unit to the handle coupling unit and the front wheel driving unit through the coupling adjustment unit, the steering wheel operation for driving the front wheel and the steering wheel operation for changing the direction are possible independently of each other. . Therefore, the passenger can easily switch between using the left and right rotation of the steering wheel for the front wheel drive and the bicycle direction change, thereby improving driving efficiency and driving convenience.
  • the bicycle capable of driving the front wheel of the present invention prevents the front wheel from moving left and right since the coupling adjustment unit is coupled with the handle coupling unit when the rotation of the handle is used for driving the front wheel.
  • moving the handle can transmit power to the front wheel to rotate forward.
  • FIG. 1 is a perspective view showing a bicycle capable of driving the front wheels according to an embodiment of the present invention.
  • FIG. 2 is a view showing that the coupling adjustment unit selectively couples the front wheel support to the handle coupling unit and the front wheel driving unit according to an embodiment of the present invention.
  • FIG 3 is a view showing that the spring is coupled to the coupling adjustment unit according to an embodiment of the present invention.
  • FIG. 4 is a view conceptually illustrating a one-way clutch according to an embodiment of the present invention.
  • FIG. 5 is a view showing a front wheel drive unit according to another embodiment of the present invention.
  • FIG. 1 is a perspective view showing a bicycle capable of driving the front wheels according to an embodiment of the present invention
  • Figure 2 is a view showing that the engaging adjustment unit selectively couples the front wheel support to the handle engaging portion and the front wheel drive according to an embodiment of the present invention
  • 3 is a view showing that the spring is coupled to the coupling adjustment unit according to an embodiment of the present invention
  • Figure 4 is a view conceptually showing a one-way clutch according to an embodiment of the present invention.
  • the bicycle 1000 capable of driving the front wheel includes a body 1100, a handle 1200, a front wheel support 1300, a front wheel fork 1400, and a front wheel.
  • the driver 1500 is included.
  • Body 1100 forms the overall frame of the bicycle 1000, the handle coupling portion 1110 is located in the front, the rear wheel 1700 is rotatably coupled to the rear and the saddle 1120 is located on the upper side.
  • the sprocket 1131 connected to the pedal 1130 rotates, and the rotational force of the sprocket 1131 is transmitted through a power transmission means such as a chain 1140.
  • the rear wheel 1600 is driven by being transmitted to the rear wheel 1600. Therefore, the bicycle 1000 is advanced forward.
  • the handle 1200 includes a handle shaft 1210 and a handle 1220.
  • the handle shaft 1210 is positioned through the handle coupling portion 1110 of the body 1100 and rotatably coupled to the handle coupling portion 1110.
  • the handle 1220 is a portion that the occupant grips by hand for driving the bicycle 1000 and is formed by branching from the upper end of the handle shaft 1210 to both sides. That is, the handle 1220 may be two right and left.
  • the handle 1220 may be attached with various devices for driving such as a brake lever 1221, a position adjuster 1222, and the like.
  • the front wheel support 1300 is located under the handle coupling 1110.
  • the front wheel support 1300 is rotatably passed through the handle shaft 1210 in the center, the lower portion is branched to both sides.
  • the front wheel support 1300 has a coupling adjustment groove 1310 formed in a vertical direction (up and down direction) on the outer circumferential surface.
  • the coupling adjustment groove 1310 is formed with a support shaft 1320 in the horizontal direction.
  • the support shaft 1320 is formed with a hole in the vertical direction.
  • a coupling adjustment unit 1330 is coupled to the hole formed in the support shaft 1320 so as to be movable up and down.
  • Coupling adjustment unit 1330 has a rod (1331) and a bundle (1332a, 1332b) coupled to both ends of the rod (1331).
  • an elastic member such as a spring 1340 may be coupled to the coupling adjustment unit 1330.
  • the spring 1340 surrounds the rod 1331 and is located between the support shaft 1320 and the bundle 1332b positioned at the lower end of the rod 1331. By providing the spring 1340, the movement of the coupling adjustment unit 1330 is faster and more natural.
  • the front wheel fork 1400 is connected to the front wheel support 1300, and the front wheel 1600 is rotatably connected to the other end of the front wheel fork 1400.
  • the front wheel fork 1400 may be a pair, and in this case, the front wheel forks 1400 are coupled to each of the lower branches branched to both sides of the front wheel support 1300.
  • the front wheel fork 1400 is rotatably coupled to the upper end of the front wheel support 1300, the lower end is rotatably connected to the central axis 1610 of the front wheel 1600. Accordingly, the front wheel fork 1400 may independently rotate about the front wheel support 1300 and the central axis 1610 of the front wheel 1600.
  • the front wheel driver 1500 connects the handle shaft 1210 and the front wheel 1600. Accordingly, the front wheel drive unit 1500 converts the left and right rotation of the handle 1200 to the forward direction rotation of the front wheel 1600.
  • the front wheel driving unit 1500 includes, but is not limited to, a driving unit 1510, a first electric gear 1520, a second electric gear 1530, a front wheel gear 1540, and a one-way clutch 1550.
  • the front wheel drive may convert the left and right rotation of the handle 1200 to the forward rotation of the front wheel 1600 in a different manner.
  • the first electric gear 1520 and the second electric gear 1530 use the term gear, they are not limited to the shape of the gear.
  • the driving unit 1510 is coupled to the lower end of the handle shaft 1210. Therefore, when the handle 1200 rotates left and right, the driving unit 1510 also rotates left and right.
  • the driving unit 1510 is a gear shape, but is not limited thereto.
  • the driving unit 1510 includes a driving coupling unit 1511 at an upper end thereof.
  • the driving coupling unit 1511 is formed with a groove 1511a to which the bundle 1332b positioned at the lower end of the coupling adjusting unit 1330 is coupled.
  • the first electric gear 1520 is connected to the driving unit 1510 at the upper portion of the front wheel fork 1400.
  • the driving unit 1510 rotates, the front wheel fork 1400 rotates through the first electric gear 1520.
  • the second electric gear 1530 is positioned under the front wheel fork 1400 and meshes with the front wheel gear 1540. Therefore, the second electric gear 1530 transmits the rotation of the front wheel fork 1400 to the front wheel 1600 so that the front wheel 1600 is driven in the forward direction. To this end, the second electric gear 1530 and the front wheel gear 1540 may be engaged with various types of gears, such as a bevel gear or a hypoid gear.
  • the front wheel gear 1540 meshes with the second electric gear 1530 and drives the central shaft 1610 of the front wheel. Accordingly, the central axis 1610 of the front wheel may be shaped to penetrate the front wheel gear 1540.
  • the one-way clutch 1550 transmits power in only one direction and does not transmit power in the reverse direction.
  • the one-way clutch 1550 connects the front wheel gear 1540 and the central shaft 1610 of the front wheel.
  • the rotation of the front wheel 1540 drives the central axis 1610 of the front wheel 1600 only when the front wheel 1600 rotates in the forward direction.
  • the one-way clutch 1550 may be in various forms, for example, as shown in FIG. 4.
  • the one-way clutch 1550 includes a gear forming unit 1551 and an elastic support 1552.
  • the gear forming unit 1551 is a portion where a tooth of a gear is formed, and in this embodiment, the front wheel gear 1540 is formed in the gear forming unit 1551.
  • An elastic support 1551 is coupled to the inside of the gear forming unit 1551 while maintaining a constant angle with respect to the inner side.
  • the elastic support 1552 is protruded in the clockwise direction, but may be formed in the counterclockwise direction according to the purpose of use. That is, when the one-way clutch 1550 is mounted on both sides of the front wheel 1600, the forming direction of the elastic support 1551 varies depending on the mounting position.
  • the elastic support part 1552 is mounted with an elastic member such as a spring therein. Accordingly, the elastic support 1552 is compressed when it comes into contact with the shaft 1555 penetrating the inside of the one-way clutch 1550, and is stretched back to its original length when it is spaced apart from the shaft 1555.
  • the elastic support 1552 When the gear forming portion 1551 rotates clockwise, the elastic support 1552 also rotates clockwise. The elastic support 1552 pushes the protrusions formed on the shaft 1555 while rotating clockwise, so that the shaft 1555 rotates clockwise. Through this process, the one-way clutch 1550 transmits power to the shaft 1555.
  • the elastic support portion 1552 when the gear forming portion 1551 rotates counterclockwise, the elastic support portion 1552 also rotates counterclockwise. In this case, since the gear forming unit 1551 does not push the protrusions formed on the shaft 1555, the shaft 1555 does not rotate at all. Thus, the one-way clutch 1550 does not transmit power to the shaft 1555.
  • the one-way clutch 1550 connects the front wheel gear 1540 and the central shaft 1610 of the front wheel, and the front wheel gear 1540 is formed in the gear forming portion 1551 of the one-way clutch 1550, and the front wheel The central axis 1610 of penetrates through the interior of the one-way clutch 1550.
  • the one-way clutch 1550 may include the driving unit 1510, the first electric gear 1520, the first electric gear 1520, the front wheel fork 1400, the front wheel fork 1400, the second electric gear, and the first. 2 may be located between the electric gear and the front wheel gear 1540, the front wheel gear 1540 and the front wheel 1600.
  • the installation position of the one-way clutch 1550 is not limited thereto, and may be various positions that allow the rotation of the handle 1200 to drive the front wheel 1600 in the forward direction.
  • the front wheel forks 1400 are located in pairs, one on each side of the front wheel 1600.
  • the front wheel drive unit 1500 includes a pair of first electric gear 1520, a second electric gear 1530, and a one-way clutch 1550 to be mounted on each front wheel fork 1400 or the front wheel fork 1400. ).
  • Rotating the handle 1200 to the left transmits power only to one side of the pair of one-way clutches, and rotating the handle 1200 to the right transmits power only to the other one-way clutch among the pair of one-way clutches. This occurs because the one-way clutch 1550 transmits power in only one direction.
  • the one-way clutch 1550 is provided on both sides of the front wheel 1600, so that the front wheel 1600 may be rotated in any direction. Can be driven.
  • the pair of one-way clutches 1550 are installed to transmit power when they rotate in opposite directions, the pair of one-way clutches 1550 respectively positioned on both sides when the front wheel 1600 rolls down or pedals, respectively. Since they do not push the protrusions formed on the shaft, the handle 1200 is not moved.
  • the coupling adjusting unit 1330 is coupled to the handle coupling unit 1110.
  • the position of the coupling adjustment unit 1330 may be adjusted through the position adjustment unit 1222.
  • the position adjusting unit 1222 is connected to the coupling adjusting unit 1330 by a wire or the like.
  • the position adjusting unit 1222 moves the coupling adjusting unit 1330 upward, the bundle 1332a positioned at the top of the coupling adjusting unit 1330 is coupled to the groove 1110a formed in the handle coupling unit 1110.
  • the spring 1340 is coupled to the coupling adjusting unit 1330, the spring 1340 is compressed.
  • the occupant repeatedly rotates the handle 1200 to the left and right by the hand, and the handle shaft 1210 is rotated by the rotation of the handle 1200, whereby the front wheel driving unit 1500 rotates the front wheel 1600.
  • the bicycle 1000 is advanced by rotating in the forward direction.
  • the driving unit 1510 coupled to the lower end of the handle shaft 1210 is rotated left and right by the left and right rotation of the handle shaft 1210, so that the first electric gear 1520 engaged with the driving unit 1510 rotates. do.
  • the front fork 1400 is rotated by the rotation of the first electric gear 1520, and thus the second electric gear 1530 is rotated.
  • the front wheel gear 1540 meshed with the second electric gear 1530 rotates.
  • the rotation of the front wheel gear 1540 drives the front wheel 1600 only when the front wheel 1600 is rotated in the forward direction through the one-way clutch 1550.
  • the front wheel fork 1400 and the front wheel gear 1540 are mounted on both left and right sides of the front wheel 1600, respectively, so that the front wheels are rotated in the left direction or the right direction in both cases. It can be used as a power to drive the 1600.
  • the coupling adjusting unit 1330 is coupled to the front wheel driving unit 1500.
  • a groove 1332b disposed at the lower end of the coupling adjusting unit 1330 is formed in the driving coupling unit 1511 located at the upper end of the driving unit 1510 ( 1511a).
  • the spring 1340 is coupled to the coupling adjustment unit 1330, the spring 1340 is about to be restored to its original position by elasticity, so that the coupling adjustment unit 1330 is fast. Will move.
  • the bicycle 1000 changes direction.
  • the bicycle 1000 according to the exemplary embodiment of the present invention does not have a separate auxiliary device visible from the outside for driving the front wheels, and thus the appearance of the bicycle 1000 is almost similar to that of the conventional bicycle. Therefore, there is no objection to the existing passengers, and the weight of the bicycle is also light.
  • front wheel support unit 1300 is selectively coupled to the handle coupling unit 1110 and the front wheel drive unit 1500 through the coupling adjustment unit 1330, so that the left and right rotation of the handle is used for driving the front wheel and for changing the bicycle direction. Interchange is easy and fast. Therefore, the occupant can comfortably ride the front wheel drive bicycle.
  • FIG. 5 is a view showing a front wheel drive unit according to another embodiment of the present invention.
  • the front wheel driving unit 2500 of the bicycle capable of driving the front wheel according to the embodiment of the present invention includes a driving unit 2510, a first electric gear 2520, a second electric gear 2530, and a front wheel gear. 2540, a one-way clutch 2550, and a power transmission unit 2560. Since the driver 2510 is the same as that described with reference to FIG. 1, detailed description thereof will be omitted.
  • the first electric gear 2520 is rotatably coupled to the upper portion of the front wheel fork 2400 and is connected to the driving unit 2510. Therefore, when the driving unit 2510 rotates, the first electric gear 2520 also rotates.
  • the second electric gear 2530 is rotatably coupled to the lower portion of the front wheel fork 2400 and meshes with the front wheel gear 2540.
  • the front wheel fork 2400 is fixedly coupled to the front wheel support 2300 and the central shaft 2610 of the front wheel 2600. Therefore, the front wheel fork 2400 does not transmit the rotation of the first electric gear 2520 to the second electric gear 2530.
  • the front wheel driver 2500 includes a power transmission unit 2560 to transmit rotation of the first electric gear 2520 to the second electric gear 2530.
  • the power transmission unit 2560 is coupled to the first electric gear 2520 and the second electric gear 2530 to transmit rotation of the first electric gear 2520 to the second electric gear 2530.
  • the power transmission unit 2560 is a rod shape coupled to the first electric gear 2520 and the second electric gear 2530, but in another embodiment, the power transmission unit 2560 has a cylindrical shape and the front wheel fork ( 2400 may be installed to be located inside the power transmission unit 2560.
  • the shape of the power transmission unit 2560 is not limited thereto, and may be various shapes connecting the first electric gear 2520 and the second electric gear 2530.
  • the driving unit 2510 When the driving unit 2510 is rotated by the left and right rotation of the handle, the first electric gear 2520 connected to the driving unit 2510 rotates.
  • the power transmission unit 2560 is rotated by the rotation of the first electric gear 2520, and thus the second electric gear 2530 is rotated.
  • the rotation of the second electric gear 2530 is transmitted to the front wheels 2600 only when the front wheels 2600 are rotated in the forward direction by the one-way clutch 2550 to drive the front wheels 2600 in the forward direction.
  • the one-way clutch 2550 may be located between the power transmission unit 2560 and the second electric gear 2530 or between the power transmission unit 2560 and the first electric gear 2520.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

The present invention relates to a front-wheel-drive bicycle. The front-wheel-drive bicycle according to the present invention also enables rear-wheel-drive using pedals, and enables front-wheel-drive to be carried out by enabling a rider to repeat the rotation of handlebars in the right and left directions. The rightward and leftward rotation of the handlebars is delivered to the front wheel via a front-wheel-drive unit to thus rotate the front wheel in the forward direction. The position of a joint-adjusting unit is adjusted so as to implement the operation of the handlebars for the front-wheel-drive or for changing direction. According to the present invention, front-wheel-drive may be performed without a separate auxiliary driving apparatus, and the operation of handlebars for front wheel drive and the operation of the handlebars for changing direction may be performed independently from one another.

Description

[규칙 제26조에 의한 보정 16.04.2012]　전륜 구동이 가능한 자전거 [Correction according to rule 26. 16.04.2012] Bicycle which can drive front wheel

본 발명은 전륜 구동이 가능한 자전거에 관한 것으로, 보다 구체적으로는 탑승자가 핸들을 좌우로 반복하여 회전시키면 핸들의 좌우 회전 운동이 전륜 구동부를 통해 전륜에 전달되어 전륜이 전진 방향으로 구동되는 전륜 구동이 가능한 자전거에 관한 것이다. The present invention relates to a bicycle capable of driving the front wheel, and more specifically, when the occupant rotates the handle repeatedly from side to side, the left and right rotational movements of the handle are transmitted to the front wheel through the front wheel drive unit so that the front wheel drive is driven in the forward direction. It's about a possible bike.

자전거는 탑승자가 안장에 앉아 핸들의 손잡이를 잡고 발로 페달(pedal)을 밟아 바퀴를 돌려 이동하는 탈 것이다. 일반적으로 자전거의 바퀴는 전륜과 후륜 2개이지만, 어린이나 노약자를 위한 바퀴가 셋 또는 넷인 자전거도 있다. The bike will ride where the occupant sits on the saddle, grabs the handle of the handlebars, and pedals with his feet to turn the wheels. Bicycles typically have two front and rear wheels, but some bikes have three or four wheels for children or the elderly.

종래의 자전거는 페달을 밟는 운동에너지가 체인 등과 같은 동력 전달 수단을 통해 후륜에 전달되고, 후륜이 구동하면서 전진하게 되는 후륜 구동 방식이다. 그러나 후륜 구동 방식의 자전거는 탑승자가 다리 근력만을 사용하므로 하체만 집중적으로 운동하게 되어, 장시간 타는 경우 탑승자가 다리에 심한 피로감을 느끼게 되는 문제점이 있다. 또한 최근에는 탑승자들의 취향이 다양해지면서 후륜 구동만 가능한 자전거에는 싫증을 느끼게 되었다. 이에 따라 전륜 구동이 가능한 자전거에 대한 연구가 활발히 진행되고 있다. The conventional bicycle is a rear wheel driving method in which the kinetic energy of stepping on the pedal is transmitted to the rear wheel through a power transmission means such as a chain, and the rear wheel drives forward. However, the bicycle of the rear-wheel drive type because the occupant uses only the leg strength, so that only the lower body is intensively exercised, there is a problem that the occupant feels severe fatigue on the leg when riding for a long time. Also, as the taste of passengers has diversified in recent years, they have become tired of bicycles that can only drive rear wheels. Accordingly, research on bicycles capable of driving the front wheels is being actively conducted.

그러나 전륜 구동 자전거는 핸들에 전륜을 구동하기 위한 별도의 보조 구동 장치를 부가하여야 하므로, 자전거의 외형이 깔끔하지 못하며 자전거가 무겁고 핸들 조작이 불편한 문제점이 있다. However, the front wheel drive bicycle has to add a separate auxiliary drive device for driving the front wheel to the handle, the appearance of the bicycle is not neat, there is a problem that the bicycle is heavy and the handle operation is inconvenient.

본 발명의 목적은 종래의 후륜 구동 자전거와 외형의 차이가 거의 없으면서도 핸들의 좌우 회전을 이용하여 전륜 구동이 가능한 자전거를 제공하는 것이다. An object of the present invention is to provide a bicycle capable of driving the front wheel by using the left and right rotation of the steering wheel with little difference in appearance from the conventional rear wheel drive bicycle.

본 발명의 다른 목적은 탑승자가 다리를 통해 후륜에 동력을 제공하는 동작과 독립적으로 팔의 힘을 통해 전륜에 동력을 전달할 수 있는 전륜 구동이 가능한 자전거를 제공하는 것이다.Another object of the present invention is to provide a bicycle capable of driving the front wheel that can transmit the power to the front wheels through the force of the arm independently of the operation of providing power to the rear wheels through the legs.

본 발명의 다른 목적은 핸들의 좌우 회전을 전륜 구동에 사용하는 것과 자전거 방향 전환에 사용하는 것에 대한 상호 전환이 손쉬워 주행 효율성 및 주행 편의성이 향상되는 전륜 구동이 가능한 자전거를 제공하는 것이다.Another object of the present invention is to provide a bicycle capable of driving the front wheel, which is easy to switch between the use of the left and right rotation of the steering wheel for front wheel drive and the use for turning the bicycle, thereby improving driving efficiency and driving convenience.

위와 같은 목적을 달성하기 위하여, 본 발명의 실시예에 따른 전륜 구동이 가능한 자전거는 몸체, 핸들, 전륜 지지부, 전륜 포크, 전륜 구동부를 포함한다. 몸체는 전방에 핸들 결합부가 위치하며 후방에는 후륜이 회전 가능하게 결합된다. 핸들은 몸체의 핸들 결합부에 관통하여 회전 가능하게 결합되는 핸들축과 핸들축의 상단에서 양측으로 분기되어 형성된 손잡이를 구비한다. 전륜 지지부는 핸들 결합부의 하부에 위치하여 핸들축이 회전 가능하게 관통한다. 전륜 포크는 전륜 지지부와 연결되며, 전륜이 회전 가능하게 결합된다. 전륜 구동부는 핸들축과 전륜을 연결하며, 핸들의 좌우 회전을 전륜의 전진 방향 회전으로 변환한다. In order to achieve the above object, the bicycle capable of driving the front wheel according to an embodiment of the present invention includes a body, a handle, a front wheel support, a front wheel fork, a front wheel drive. The body is located at the front handle engaging portion and the rear wheel is rotatably coupled. The handle has a handle shaft which is rotatably coupled to the handle engaging portion of the body and a handle formed branched from both sides at an upper end of the handle shaft. The front wheel support portion is located under the handle coupling portion to rotatably penetrate the handle shaft. The front wheel fork is connected to the front wheel support, and the front wheel is rotatably coupled. The front wheel drive unit connects the handle shaft and the front wheel, and converts the left and right rotation of the handle into the forward rotation of the front wheel.

본 발명의 실시예에 따른 전륜 구동이 가능한 자전거의 전륜 구동부는 구동부, 제1 전동기어, 제2 전동기어, 전륜 기어, 일방향 클러치를 구비할 수 있다. 구동부는 핸들축의 하단에 결합된다. 제1 전동기어는 전륜 포크의 상부에 결합되며 구동부와 연결된다. 제2 전동기어는 전륜 포크의 하부에 결합된다. 전륜 기어는 제2 전동기어와 연결되며 전륜을 구동한다. 일방향 클러치는 구동부의 회전을 전륜이 전진하는 방향으로만 회전되도록 전달한다. 전륜 포크는 상단이 전륜 지지부에 회전 가능하게 결합되고 하단이 전륜의 중심축에 회전 가능하게 연결된다. The front wheel drive of the bicycle capable of driving the front wheel according to an embodiment of the present invention may be provided with a driving unit, a first electric gear, a second electric gear, a front wheel gear, a one-way clutch. The drive unit is coupled to the lower end of the handle shaft. The first electric gear is coupled to the upper portion of the front wheel fork and connected to the driving unit. The second electric gear is coupled to the lower part of the front wheel fork. The front wheel gear is connected to the second electric gear and drives the front wheel. The one-way clutch transmits the rotation of the drive unit to rotate only in the direction in which the front wheels advance. The front wheel fork is rotatably coupled to the front end of the front wheel support and to the central axis of the front wheel.

본 발명의 실시예에 따른 전륜 구동이 가능한 자전거의 전륜 구동부는 구동부, 제1 전동기어, 제2 전동기어, 전륜 기어, 동력 전달부, 일방향 클러치를 구비할 수 있다. 구동부는 핸들축의 하단에 결합된다. 제1 전동기어는 전륜 포크의 상부에 회전 가능하게 결합되며 구동부와 연결된다. 제2 전동기어는 전륜 포크의 하부에 회전 가능하게 결합된다. 전륜 기어는 제2 전동기어와 연결되며 전륜을 구동한다. 동력 전달부는 제1 전동기어와 제2 전동기어에 결합되어 제1 전동기어의 회전을 제2 전동기어에 전달한다. 일방향 클러치는 구동부의 회전을 전륜이 전진하는 방향으로만 회전되도록 전달한다. The front wheel drive of the bicycle capable of driving the front wheel according to an embodiment of the present invention may be provided with a driving unit, a first electric gear, a second electric gear, a front wheel gear, a power transmission unit, a one-way clutch. The drive unit is coupled to the lower end of the handle shaft. The first electric gear is rotatably coupled to the upper portion of the front wheel fork and connected to the driving unit. The second electric gear is rotatably coupled to the lower portion of the front wheel fork. The front wheel gear is connected to the second electric gear and drives the front wheel. The power transmission unit is coupled to the first electric gear and the second electric gear to transmit rotation of the first electric gear to the second electric gear. The one-way clutch transmits the rotation of the drive unit to rotate only in the direction in which the front wheels advance.

본 발명의 실시예에 따른 전륜 구동이 가능한 자전거의 전륜 구동부는 전륜의 양측에 각각 위치하는 한 쌍의 일방향 클러치를 포함할 수 있다. 이 경우 핸들의 좌측 회전시 일측 일방향 클러치만이 동력을 전달하고, 핸들의 우측 회전시 타측 일방향 클러치만이 동력을 전달한다. The front wheel drive of the bicycle capable of driving the front wheel according to an embodiment of the present invention may include a pair of one-way clutches respectively located on both sides of the front wheel. In this case, only one side one-way clutch transmits power when the handle is rotated to the left, and only one side one-way clutch transmits power when the handle is to the right.

본 발명의 실시예에 따른 전륜 구동이 가능한 자전거는 결합 조정부를 더 포할 수 있다. 결합 조정부는 전륜 지지부를 핸들 결합부와 전륜 구동부에 선택적으로 결합시킨다. 전륜 지지부가 핸들 결합부와 결합되는 경우에는 핸들의 전에 의해 전륜이 구동하며, 전륜 지지부가 전륜 구동부와 결합되는 경우에는 핸들의 좌우 회전에 의해 자전거의 방향 전환이 가능하다. Bicycle capable of driving the front wheels according to an embodiment of the present invention may further include a coupling adjustment unit. The engagement adjustment unit selectively couples the front wheel support to the handle coupling and the front wheel drive. When the front wheel support portion is coupled to the handle engaging portion, the front wheel is driven by the front of the handle, and when the front wheel support portion is coupled to the front wheel drive portion, the direction of the bicycle can be changed by left and right rotation of the handle.

본 발명의 실시예에 따른 전륜 구동이 가능한 자전거의 전륜 지지부는 결합 조정홈과 지지축을 구비할 수 있다. 결합 조정홈은 전륜 지지부의 외주면에 형성된다. 지지축은 결합 조정홈 내부에 위치하며, 상하로 구멍이 형성된다. 결합 조정부는 지지축에 형성된 구멍에 상하로 이동 가능하게 결합된다. The front wheel support of the bicycle capable of driving the front wheel according to an embodiment of the present invention may be provided with a coupling adjustment groove and a support shaft. Coupling adjustment groove is formed on the outer peripheral surface of the front wheel support. The support shaft is located inside the coupling adjustment groove, and the hole is formed up and down. The engagement adjusting portion is coupled to the hole formed in the support shaft so as to be movable up and down.

본 발명의 전륜 구동이 가능한 자전거는 핸들의 좌우 회전을 이용해 전륜을 구동할 수 있으므로 별도로 전륜 구동을 위한 보조 장치를 구비하지 않는다. 따라서 종래의 후륜 구동 자전거와 외형이 거의 유사해 기존의 탑승자들도 쉽게 탈 수 있으며, 자전거의 무게가 가볍다. The bicycle capable of driving the front wheel of the present invention may drive the front wheel by using left and right rotation of the handle, and thus does not include an auxiliary device for driving the front wheel separately. Therefore, the appearance is almost similar to the conventional rear-wheel drive bicycle, so that existing passengers can easily ride, and the weight of the bicycle is light.

또한 본 발명의 전륜 구동이 가능한 자전거는 결합 조정부를 통해 전륜 지지부를 핸들 결합부와 전륜 구동부에 선택적으로 결합 또는 분리시키므로, 전륜 구동을 위한 핸들 조작과 방향 전환을 위한 핸들 조작이 서로 독립적으로 가능하다. 따라서 탑승자가 핸들의 좌우 회전을 전륜 구동에 사용하는 것과 자전거 방향 전환에 사용하는 것에 대한 상호 전환을 손쉽게 할 수 있어 주행 효율성 및 주행 편의성이 향상된다. In addition, since the bicycle capable of driving the front wheel of the present invention selectively couples or separates the front wheel support unit to the handle coupling unit and the front wheel driving unit through the coupling adjustment unit, the steering wheel operation for driving the front wheel and the steering wheel operation for changing the direction are possible independently of each other. . Therefore, the passenger can easily switch between using the left and right rotation of the steering wheel for the front wheel drive and the bicycle direction change, thereby improving driving efficiency and driving convenience.

또한 본 발명의 전륜 구동이 가능한 자전거는 핸들의 회전이 전륜 구동을 위해 이용되는 경우 결합 조정부가 핸들 결합부와 결합되므로 전륜이 좌우로 움직이는 것을 방지한다. 따라서 핸들을 움직이면 전륜이 앞방향으로 회전하도록 동력을 전달할 수 있다. In addition, the bicycle capable of driving the front wheel of the present invention prevents the front wheel from moving left and right since the coupling adjustment unit is coupled with the handle coupling unit when the rotation of the handle is used for driving the front wheel. Thus, moving the handle can transmit power to the front wheel to rotate forward.

도 1은 본 발명의 실시예에 따른 전륜 구동이 가능한 자전거를 나타내는 사시도이다.1 is a perspective view showing a bicycle capable of driving the front wheels according to an embodiment of the present invention.

도 2는 본 발명의 실시예에 따른 결합 조정부가 전륜 지지부를 핸들 결합부와 전륜 구동부에 선택적으로 결합시키는 것을 나타내는 도면이다.2 is a view showing that the coupling adjustment unit selectively couples the front wheel support to the handle coupling unit and the front wheel driving unit according to an embodiment of the present invention.

도 3은 본 발명의 실시예에 따른 결합 조정부에 스프링이 결합된 것을 나타내는 도면이다. 3 is a view showing that the spring is coupled to the coupling adjustment unit according to an embodiment of the present invention.

도 4는 본 발명의 실시예에 따른 일방향 클러치를 개념적으로 나타내는 도면이다. 4 is a view conceptually illustrating a one-way clutch according to an embodiment of the present invention.

도 5는 본 발명의 다른 실시예에 따른 전륜 구동부를 나타내는 도면이다. 5 is a view showing a front wheel drive unit according to another embodiment of the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예들을 상세히 설명한다. 이 때, 첨부된 도면에서 동일한 구성 요소는 가능한 동일한 부호로 나타내고 있음에 유의한다. 또한, 본 발명의 요지를 흐리게 할 수 있는 공지 기능 및 구성에 대한 상세한 설명은 생략할 것이다. 마찬가지 이유로 첨부 도면에 있어서 일부 구성요소는 과장되거나 생략되거나 개략적으로 도시되었다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it is noted that the same components in the accompanying drawings are represented by the same reference numerals as possible. In addition, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be omitted. For the same reason, in the accompanying drawings, some components are exaggerated, omitted or schematically illustrated.

도 1은 본 발명의 실시예에 따른 전륜 구동이 가능한 자전거를 나타내는 사시도이고, 도 2는 본 발명의 실시예에 따른 결합 조정부가 전륜 지지부를 핸들 결합부와 전륜 구동부에 선택적으로 결합시키는 것을 나타내는 도면이고, 도 3은 본 발명의 실시예에 따른 결합 조정부에 스프링이 결합된 것을 나타내는 도면이며, 도 4는 본 발명의 실시예에 따른 일방향 클러치를 개념적으로 나타내는 도면이다. 1 is a perspective view showing a bicycle capable of driving the front wheels according to an embodiment of the present invention, Figure 2 is a view showing that the engaging adjustment unit selectively couples the front wheel support to the handle engaging portion and the front wheel drive according to an embodiment of the present invention. 3 is a view showing that the spring is coupled to the coupling adjustment unit according to an embodiment of the present invention, Figure 4 is a view conceptually showing a one-way clutch according to an embodiment of the present invention.

도 1 및 도 2에 도시된 바와 같이, 본 발명의 실시예에 따른 전륜 구동이 가능한 자전거(1000)는 몸체(1100), 핸들(1200), 전륜 지지부(1300), 전륜 포크(1400), 전륜 구동부(1500)를 포함한다. As illustrated in FIGS. 1 and 2, the bicycle 1000 capable of driving the front wheel according to an embodiment of the present invention includes a body 1100, a handle 1200, a front wheel support 1300, a front wheel fork 1400, and a front wheel. The driver 1500 is included.

몸체(1100)는 자전거(1000)의 전체적인 틀을 형성하는 것으로, 전방에는 핸들 결합부(1110)가 위치하고 후방에는 후륜(1700)이 회전 가능하게 결합되며 상측에는 안장(1120)이 위치한다. 탑승자가 안장(1120)에 앉아 발로 페달(1130)을 밟으면 페달(1130)과 연결된 스프로킷(sprocket, 1131)이 회전하게 되고, 체인(1140) 등과 같은 동력 전달 수단을 통해 스프로킷(1131)의 회전력이 후륜(1600)에 전달되어 후륜(1600)이 구동된다. 따라서 자전거(1000)는 앞으로 전진하게 된다.Body 1100 forms the overall frame of the bicycle 1000, the handle coupling portion 1110 is located in the front, the rear wheel 1700 is rotatably coupled to the rear and the saddle 1120 is located on the upper side. When the occupant sits on the saddle 1120 and presses the pedal 1130 with his feet, the sprocket 1131 connected to the pedal 1130 rotates, and the rotational force of the sprocket 1131 is transmitted through a power transmission means such as a chain 1140. The rear wheel 1600 is driven by being transmitted to the rear wheel 1600. Therefore, the bicycle 1000 is advanced forward.

핸들(1200)은 핸들축(1210)과 손잡이(1220)를 구비한다. 핸들축(1210)은 몸체(1100)의 핸들 결합부(1110)를 관통하여 위치하며, 핸들 결합부(1110)에 회전 가능하게 결합된다. 손잡이(1220)는 탑승자가 자전거(1000) 운전을 위해 손으로 파지하는 부분으로 핸들축(1210)의 상단에서 양측으로 분기되어 형성된다. 즉 손잡이(1220)는 오른쪽과 왼쪽 두 개가 될 수 있다. 손잡이(1220)에는 브레이크 레버(1221), 위치 조정부(1222) 등과 같은 운전을 위한 다양한 장치가 부착될 수 있다. The handle 1200 includes a handle shaft 1210 and a handle 1220. The handle shaft 1210 is positioned through the handle coupling portion 1110 of the body 1100 and rotatably coupled to the handle coupling portion 1110. The handle 1220 is a portion that the occupant grips by hand for driving the bicycle 1000 and is formed by branching from the upper end of the handle shaft 1210 to both sides. That is, the handle 1220 may be two right and left. The handle 1220 may be attached with various devices for driving such as a brake lever 1221, a position adjuster 1222, and the like.

전륜 지지부(1300)는 핸들 결합부(1110)의 하부에 위치한다. 전륜 지지부(1300)는 중앙에 핸들축(1210)이 회전 가능하게 관통하며, 하부가 양 측으로 분기된다. The front wheel support 1300 is located under the handle coupling 1110. The front wheel support 1300 is rotatably passed through the handle shaft 1210 in the center, the lower portion is branched to both sides.

전륜 지지부(1300)는 외주면에 수직 방향(상하 방향)으로 결합 조정홈(1310)이 형성된다. 결합 조정홈(1310)에는 수평 방향으로 지지축(1320)이 형성된다. 지지축(1320)에는 수직 방향으로 구멍이 형성된다. 지지축(1320)에 형성된 구멍에는 결합 조정부(1330)가 상하로 이동 가능하게 결합된다. 결합 조정부(1330)는 봉(1331)과 봉(1331)의 양 끝단에 결합된 뭉치(1332a, 1332b)를 구비한다.The front wheel support 1300 has a coupling adjustment groove 1310 formed in a vertical direction (up and down direction) on the outer circumferential surface. The coupling adjustment groove 1310 is formed with a support shaft 1320 in the horizontal direction. The support shaft 1320 is formed with a hole in the vertical direction. A coupling adjustment unit 1330 is coupled to the hole formed in the support shaft 1320 so as to be movable up and down. Coupling adjustment unit 1330 has a rod (1331) and a bundle (1332a, 1332b) coupled to both ends of the rod (1331).

결합 조정부(1330)에는, 도 3에 도시된 바와 같이, 스프링(1340)과 같은 탄성 부재가 결합될 수 있다. 스프링(1340)은 봉(1331)을 감싸는 형태로, 지지축(1320)과 봉(1331)의 하단에 위치하는 뭉치(1332b) 사이에 위치한다. 스프링(1340)을 구비함으로써 결합 조정부(1330)의 이동이 빨라지고 자연스러워진다. 3, an elastic member such as a spring 1340 may be coupled to the coupling adjustment unit 1330. The spring 1340 surrounds the rod 1331 and is located between the support shaft 1320 and the bundle 1332b positioned at the lower end of the rod 1331. By providing the spring 1340, the movement of the coupling adjustment unit 1330 is faster and more natural.

전륜 포크(1400)의 일단은 전륜 지지부(1300)와 연결되고, 전륜 포크(1400)의 타단에는 전륜(1600)이 회전 가능하게 연결된다. 전륜 포크(1400)는 한 쌍이 될 수 있으며, 이 경우 전륜 지지부(1300)의 양 측으로 분기된 하부에 각각 하나씩 결합된다. 본 실시예에서 전륜 포크(1400)는 상단이 전륜 지지부(1300)에 회전 가능하게 결합되고, 하단이 전륜(1600)의 중심축(1610)에 회전 가능하게 연결된다. 따라서 전륜 포크(1400)는 전륜 지지부(1300) 및 전륜(1600)의 중심축(1610)에 대해 독립적으로 회전이 가능하다. One end of the front wheel fork 1400 is connected to the front wheel support 1300, and the front wheel 1600 is rotatably connected to the other end of the front wheel fork 1400. The front wheel fork 1400 may be a pair, and in this case, the front wheel forks 1400 are coupled to each of the lower branches branched to both sides of the front wheel support 1300. In this embodiment, the front wheel fork 1400 is rotatably coupled to the upper end of the front wheel support 1300, the lower end is rotatably connected to the central axis 1610 of the front wheel 1600. Accordingly, the front wheel fork 1400 may independently rotate about the front wheel support 1300 and the central axis 1610 of the front wheel 1600.

전륜 구동부(1500)는 핸들축(1210)과 전륜(1600)을 연결한다. 이에 따라 전륜 구동부(1500)는 핸들(1200)의 좌우 회전을 전륜(1600)의 전진 방향 회전으로 변환한다. The front wheel driver 1500 connects the handle shaft 1210 and the front wheel 1600. Accordingly, the front wheel drive unit 1500 converts the left and right rotation of the handle 1200 to the forward direction rotation of the front wheel 1600.

본 실시예에서 전륜 구동부(1500)는 구동부(1510), 제1 전동기어(1520), 제2 전동기어(1530), 전륜 기어(1540), 일방향 클러치(1550)를 구비하지만 이에 한정되는 것은 아니다. 다른 실시예에서는 전륜 구동부가 다른 방식으로 핸들(1200)의 좌우 회전을 전륜(1600)의 전진 방향 회전으로 변환할 수 있다. 또한 제1 전동기어(1520), 제2 전동기어(1530)는 기어라는 용어를 사용하고 있기는 하지만, 기어 형상으로 한정되는 것은 아니다. In the present exemplary embodiment, the front wheel driving unit 1500 includes, but is not limited to, a driving unit 1510, a first electric gear 1520, a second electric gear 1530, a front wheel gear 1540, and a one-way clutch 1550. . In another embodiment, the front wheel drive may convert the left and right rotation of the handle 1200 to the forward rotation of the front wheel 1600 in a different manner. In addition, although the first electric gear 1520 and the second electric gear 1530 use the term gear, they are not limited to the shape of the gear.

구동부(1510)는 핸들축(1210)의 하단에 결합된다. 따라서 핸들(1200)이 좌우로 회전하면 구동부(1510)도 좌우로 회전하게 된다. 본 실시예에서 구동부(1510)는 기어 형상이지만 이에 한정되는 것은 아니다. 구동부(1510)는 상단에 구동 결합부(1511)를 구비한다. 구동 결합부(1511)에는 결합 조정부(1330)의 하단에 위치하는 뭉치(1332b)가 결합되는 홈(1511a)이 형성된다.The driving unit 1510 is coupled to the lower end of the handle shaft 1210. Therefore, when the handle 1200 rotates left and right, the driving unit 1510 also rotates left and right. In this embodiment, the driving unit 1510 is a gear shape, but is not limited thereto. The driving unit 1510 includes a driving coupling unit 1511 at an upper end thereof. The driving coupling unit 1511 is formed with a groove 1511a to which the bundle 1332b positioned at the lower end of the coupling adjusting unit 1330 is coupled.

제1 전동기어(1520)는 전륜 포크(1400)의 상부에서 구동부(1510)와 연결된다. 구동부(1510)가 회전하면 제1 전동기어(1520)를 통해 전륜 포크(1400)가 회전하게 된다. The first electric gear 1520 is connected to the driving unit 1510 at the upper portion of the front wheel fork 1400. When the driving unit 1510 rotates, the front wheel fork 1400 rotates through the first electric gear 1520.

제2 전동기어(1530)는 전륜 포크(1400)의 하부에 위치하여 전륜 기어(1540)와 맞물린다. 따라서 제2 전동기어(1530)는 전륜 포크(1400)의 회전을 전륜(1600)에 전달하여 전륜(1600)이 전진 방향으로 구동되도록 한다. 이를 위해 제2 전동기어(1530)와 전륜 기어(1540)는 베벨 기어(bevel gear) 또는 하이포이드 기어(hypoid gear) 등 다양한 형태의 기어로 맞물릴 수 있다. The second electric gear 1530 is positioned under the front wheel fork 1400 and meshes with the front wheel gear 1540. Therefore, the second electric gear 1530 transmits the rotation of the front wheel fork 1400 to the front wheel 1600 so that the front wheel 1600 is driven in the forward direction. To this end, the second electric gear 1530 and the front wheel gear 1540 may be engaged with various types of gears, such as a bevel gear or a hypoid gear.

전륜 기어(1540)는 제2 전동기어(1530)와 맞물리며 전륜의 중심축(1610)을 구동한다. 따라서 전륜의 중심축(1610)은 전륜 기어(1540)를 관통하는 형상이 될 수 있다. The front wheel gear 1540 meshes with the second electric gear 1530 and drives the central shaft 1610 of the front wheel. Accordingly, the central axis 1610 of the front wheel may be shaped to penetrate the front wheel gear 1540.

일방향 클러치(1550)는 한 방향으로만 동력을 전달하고 역방향으로는 동력을 전달하지 않는 것으로, 본 실시예에서는 일방향 클러치(1550)가 전륜 기어(1540)와 전륜의 중심축(1610)을 연결하며 전륜 기어(1540)의 회전이 전륜(1600)을 전진 방향으로 회전시키는 경우에만 전륜(1600)의 중심축(1610)을 구동한다. 일방향 클러치(1550)는 다양한 형태가 될 수 있으며, 예를 들어 도 4에 도시된 바와 같은 형태가 될 수 있다.The one-way clutch 1550 transmits power in only one direction and does not transmit power in the reverse direction. In this embodiment, the one-way clutch 1550 connects the front wheel gear 1540 and the central shaft 1610 of the front wheel. The rotation of the front wheel 1540 drives the central axis 1610 of the front wheel 1600 only when the front wheel 1600 rotates in the forward direction. The one-way clutch 1550 may be in various forms, for example, as shown in FIG. 4.

도 4에 도시된 바와 같이, 일방향 클러치(1550)는 기어 형성부(1551), 탄성 지지부(1552)를 구비한다. 기어 형성부(1551)는 기어의 이(tooth)가 형성되는 부분으로, 본 실시예에서는 기어 형성부(1551)에 전륜 기어(1540)가 형성된다. As shown in FIG. 4, the one-way clutch 1550 includes a gear forming unit 1551 and an elastic support 1552. The gear forming unit 1551 is a portion where a tooth of a gear is formed, and in this embodiment, the front wheel gear 1540 is formed in the gear forming unit 1551.

기어 형성부(1551)의 내측에는 탄성 지지부(1552)가 내측면에 대해 일정한 각도를 유지하면서 결합된다. 본 실시예에서는 탄성 지지부(1552)가 시계 방향으로 돌출된 형상이지만, 사용 목적에 따라 반시계 방향으로 형성될 수도 있다. 즉, 일방향 클러치(1550)가 전륜(1600)의 양측에 장착되는 경우, 장착되는 위치에 따라 탄성 지지부(1552)의 형성 방향이 달라진다.An elastic support 1551 is coupled to the inside of the gear forming unit 1551 while maintaining a constant angle with respect to the inner side. In this embodiment, the elastic support 1552 is protruded in the clockwise direction, but may be formed in the counterclockwise direction according to the purpose of use. That is, when the one-way clutch 1550 is mounted on both sides of the front wheel 1600, the forming direction of the elastic support 1551 varies depending on the mounting position.

탄성 지지부(1552)는 내부에 스프링 등과 같은 탄성 부재가 장착되어 있다. 따라서 탄성 지지부(1552)는 일방향 클러치(1550)의 내부를 관통하는 축(1555)과 접하게 되면 압축되며, 축(1555)과 이격되면 다시 원래 길이로 늘어난다. The elastic support part 1552 is mounted with an elastic member such as a spring therein. Accordingly, the elastic support 1552 is compressed when it comes into contact with the shaft 1555 penetrating the inside of the one-way clutch 1550, and is stretched back to its original length when it is spaced apart from the shaft 1555.

기어 형성부(1551)가 시계 방향으로 회전하면, 탄성 지지부(1552)도 시계 방향으로 회전한다. 탄성 지지부(1552)는 시계 방향으로 회전하면서 축(1555)에 형성된 돌기를 밀게 되고 따라서 축(1555)이 시계 방향으로 회전하게 된다. 이와 같은 과정을 통해 일방향 클러치(1550)는 축(1555)에 동력을 전달하게 되다. When the gear forming portion 1551 rotates clockwise, the elastic support 1552 also rotates clockwise. The elastic support 1552 pushes the protrusions formed on the shaft 1555 while rotating clockwise, so that the shaft 1555 rotates clockwise. Through this process, the one-way clutch 1550 transmits power to the shaft 1555.

그러나 기어 형성부(1551)가 반시계 방향으로 회전하면, 탄성 지지부도(1552)도 반시계 방향으로 회전한다. 이 경우 기어 형성부(1551)가 축(1555)에 형성된 돌기를 밀지 못하므로, 축(1555)은 전혀 회전하지 않는다. 따라서 일방향 클러치(1550)는 축(1555)에 동력을 전달하지 못한다. However, when the gear forming portion 1551 rotates counterclockwise, the elastic support portion 1552 also rotates counterclockwise. In this case, since the gear forming unit 1551 does not push the protrusions formed on the shaft 1555, the shaft 1555 does not rotate at all. Thus, the one-way clutch 1550 does not transmit power to the shaft 1555.

본 실시예에서는 일방향 클러치(1550)가 전륜 기어(1540)와 전륜의 중심축(1610)을 연결하며, 전륜 기어(1540)가 일방향 클러치(1550)의 기어 형성부(1551)에 형성되고, 전륜의 중심축(1610)이 일방향 클러치(1550)의 내부를 관통한다. 그러나 다른 실시예에서는 일방향 클러치(1550)가 구동부(1510)와 제1 전동기어(1520), 제1 전동기어(1520)와 전륜 포크(1400), 전륜 포크(1400)와 제2 전동기어, 제2 전동기어와 전륜 기어(1540), 전륜 기어(1540)와 전륜(1600) 사이에 위치할 수 있다. 일방향 클러치(1550)의 설치 위치는 이에 한정되지 않고 핸들(1200)의 회전이 전륜(1600)을 전진 방향으로 구동시킬 수 있도록 하는 다양한 위치가 될 수 있다. In this embodiment, the one-way clutch 1550 connects the front wheel gear 1540 and the central shaft 1610 of the front wheel, and the front wheel gear 1540 is formed in the gear forming portion 1551 of the one-way clutch 1550, and the front wheel The central axis 1610 of penetrates through the interior of the one-way clutch 1550. However, in another embodiment, the one-way clutch 1550 may include the driving unit 1510, the first electric gear 1520, the first electric gear 1520, the front wheel fork 1400, the front wheel fork 1400, the second electric gear, and the first. 2 may be located between the electric gear and the front wheel gear 1540, the front wheel gear 1540 and the front wheel 1600. The installation position of the one-way clutch 1550 is not limited thereto, and may be various positions that allow the rotation of the handle 1200 to drive the front wheel 1600 in the forward direction.

또한 일반적으로 전륜 포크(1400)는 전륜(1600)의 양측에 각각 하나씩 한쌍으로 위치한다. 이 경우 전륜 구동부(1500)는 한 쌍의 제1 전동기어(1520), 제2 전동기어(1530), 일방향 클러치(1550)를 구비하여, 각각의 전륜 포크(1400)에 장착되거나 전륜 포크(1400)와 연결된다. 핸들(1200)을 좌측으로 회전시키면 한 쌍의 일방향 클러치 중 일측 일방향 클러치만이 동력을 전달하고, 핸들(1200)을 우측으로 회전시키면 한 쌍의 일방향 클러치 중 타측 일방향 클러치만이 동력을 전달한다. 이는 일방향 클러치(1550)가 한 방향으로만 동력을 전달하기 때문에 발생하는 현상으로, 일방향 클러치(1550)가 전륜(1600)의 양측에 구비됨으로써 핸들(1200)을 어느 방향으로 회전시켜도 전륜(1600)을 구동할 수 있게 된다. 한 쌍의 일방향 클러치(1550)가 서로 반대 방향으로 회전할 때 동력을 전달하도록 설치되면, 비탈길을 내려가거나 페달을 밟아 전륜(1600)이 굴러갈 때 양측에 각각 위치한 한 쌍의 일방향 클러치(1550)들이 축에 형성된 돌기를 밀지 못하므로 핸들(1200)이 움직이지 않게 된다.In general, the front wheel forks 1400 are located in pairs, one on each side of the front wheel 1600. In this case, the front wheel drive unit 1500 includes a pair of first electric gear 1520, a second electric gear 1530, and a one-way clutch 1550 to be mounted on each front wheel fork 1400 or the front wheel fork 1400. ). Rotating the handle 1200 to the left transmits power only to one side of the pair of one-way clutches, and rotating the handle 1200 to the right transmits power only to the other one-way clutch among the pair of one-way clutches. This occurs because the one-way clutch 1550 transmits power in only one direction. The one-way clutch 1550 is provided on both sides of the front wheel 1600, so that the front wheel 1600 may be rotated in any direction. Can be driven. When the pair of one-way clutches 1550 are installed to transmit power when they rotate in opposite directions, the pair of one-way clutches 1550 respectively positioned on both sides when the front wheel 1600 rolls down or pedals, respectively. Since they do not push the protrusions formed on the shaft, the handle 1200 is not moved.

탑승자는 안장(1120)에 앉아 페달(1130)을 밟아 후륜(1700)을 구동하여 자전거(1000)를 앞으로 전진시킨다. 전륜(1600)을 구동하여 자전거(1000)를 전진시키고자 하는 경우에는, 도 2의 (a)에 도시된 바와 같이, 결합 조정부(1330)를 핸들 결합부(1110)와 결합이 시킨다. 결합 조정부(1330)의 위치는 위치 조정부(1222)를 통해 조절할 수 있다. 위치 조정부(1222)는 와이어 등으로 결합 조정부(1330)와 연결된다. 위치 조정부(1222)가 결합 조정부(1330)를 위쪽으로 이동시키면, 결합 조정부(1330)의 상단에 위치하는 뭉치(1332a)가 핸들 결합부(1110)에 형성된 홈(1110a)에 결합된다. 도 3의 (a)에 도시된 바와 같이, 결합 조정부(1330)에 스프링(1340)이 결합된 경우라면, 스프링(1340)이 압축된다.The occupant sits on the saddle 1120 and presses the pedal 1130 to drive the rear wheel 1700 to advance the bicycle 1000 forward. When driving the front wheel 1600 to advance the bicycle 1000, as shown in FIG. 2A, the coupling adjusting unit 1330 is coupled to the handle coupling unit 1110. The position of the coupling adjustment unit 1330 may be adjusted through the position adjustment unit 1222. The position adjusting unit 1222 is connected to the coupling adjusting unit 1330 by a wire or the like. When the position adjusting unit 1222 moves the coupling adjusting unit 1330 upward, the bundle 1332a positioned at the top of the coupling adjusting unit 1330 is coupled to the groove 1110a formed in the handle coupling unit 1110. As shown in FIG. 3A, when the spring 1340 is coupled to the coupling adjusting unit 1330, the spring 1340 is compressed.

이 후 탑승자가 손으로 핸들(1200)을 좌우로 회전시키는 것을 반복하며, 핸들(1200)의 회전에 의해 핸들축(1210)이 회전하게 되고, 이에 따라 전륜 구동부(1500)가 전륜(1600)을 전진 방향으로 회전시켜 자전거(1000)를 전진시킨다.Afterwards, the occupant repeatedly rotates the handle 1200 to the left and right by the hand, and the handle shaft 1210 is rotated by the rotation of the handle 1200, whereby the front wheel driving unit 1500 rotates the front wheel 1600. The bicycle 1000 is advanced by rotating in the forward direction.

구체적으로는 핸들축(1210)의 좌우 회전에 의해 핸들축(1210)의 하단에 결합된 구동부(1510)가 좌우로 회전하게 되고, 구동부(1510)와 맞물린 제1 전동기어(1520)가 회전하게 된다. 제1 전동기어(1520)의 회전에 의해 전륜 포크(1400)가 회전하게 되고, 따라서 제2 전동기어(1530)가 회전한다. 제2 전동기어(1530)가 회전하면 제2 전동기어(1530)와 맞물린 전륜 기어(1540)가 회전하게 된다. 전륜 기어(1540)의 회전은 일방향 클러치(1550)를 통해 전륜(1600)을 전진 방향으로 회전시키는 경우에만 전륜(1600)을 구동하게 된다. 본 실시예에서는 전륜(1600)의 좌우 양측에 각각 전륜 포크(1400)와 전륜 기어(1540)가 장착되므로, 핸들(1200)을 좌측 방향으로 회전시키든 우측 방향으로 회전시키든 각각의 경우 모두 전륜(1600)을 구동시키는 동력으로 사용할 수 있다. Specifically, the driving unit 1510 coupled to the lower end of the handle shaft 1210 is rotated left and right by the left and right rotation of the handle shaft 1210, so that the first electric gear 1520 engaged with the driving unit 1510 rotates. do. The front fork 1400 is rotated by the rotation of the first electric gear 1520, and thus the second electric gear 1530 is rotated. When the second electric gear 1530 rotates, the front wheel gear 1540 meshed with the second electric gear 1530 rotates. The rotation of the front wheel gear 1540 drives the front wheel 1600 only when the front wheel 1600 is rotated in the forward direction through the one-way clutch 1550. In this embodiment, the front wheel fork 1400 and the front wheel gear 1540 are mounted on both left and right sides of the front wheel 1600, respectively, so that the front wheels are rotated in the left direction or the right direction in both cases. It can be used as a power to drive the 1600.

탑승자가 자전거(1000)의 방향을 전환하고자 하는 경우에는, 도 2의 (b)에 도시된 바와 같이, 결합 조정부(1330)를 전륜 구동부(1500)와 결합시킨다. 위치 조정부(1222)가 결합 조정부(1330)를 아래쪽으로 이동시키면, 결합 조정부(1330)의 하단에 위치하는 뭉치(1332b)가 구동부(1510)의 상단에 위치한 구동 결합부(1511)에 형성된 홈(1511a)에 결합된다. 도 3의 (b)에 도시된 바와 같이, 결합 조정부(1330)에 스프링(1340)이 결합된 경우라면, 스프링(1340)이 탄성에 의해 원래 위치로 복원되려 하므로, 결합 조정부(1330)가 빠르게 이동하게 된다. When the occupant intends to change the direction of the bicycle 1000, as shown in FIG. 2B, the coupling adjusting unit 1330 is coupled to the front wheel driving unit 1500. When the position adjusting unit 1222 moves the coupling adjusting unit 1330 downward, a groove 1332b disposed at the lower end of the coupling adjusting unit 1330 is formed in the driving coupling unit 1511 located at the upper end of the driving unit 1510 ( 1511a). As shown in (b) of FIG. 3, when the spring 1340 is coupled to the coupling adjustment unit 1330, the spring 1340 is about to be restored to its original position by elasticity, so that the coupling adjustment unit 1330 is fast. Will move.

이 후 탑승자가 손으로 핸들(1200)을 회전시키면 핸들축(1210)의 하단에 결합된 구동부(1510)가 회전하려 하지만, 구동 결합부(1511)가 전륜 지지부(1300)와 결합되어 있으므로 구동부(1510)와 전륜 지지부(1300)가 일체로 움직인다. 따라서 핸들(1200)의 회전에 의해 전륜 지지부(1300)가 회전하게 되므로 자전거(1000)가 방향을 전환하게 된다. Thereafter, when the occupant rotates the steering wheel 1200 by hand, the driving unit 1510 coupled to the lower end of the steering shaft 1210 tries to rotate, but the driving coupling unit 1511 is coupled to the front wheel support unit 1300 and thus, the driving unit ( 1510 and the front wheel support 1300 move together. Therefore, since the front wheel support 1300 is rotated by the rotation of the handle 1200, the bicycle 1000 changes direction.

이와 같이 본 발명의 실시예에 따른 자전거(1000)는 전륜 구동을 위한 외부에서 보이는 별도의 보조 장치를 구비하지 않아 종래의 자전거와 외형이 거의 유사하다. 따라서 기존의 탑승자들에게 거부감이 없으며, 자전거의 무게도 가볍다. As such, the bicycle 1000 according to the exemplary embodiment of the present invention does not have a separate auxiliary device visible from the outside for driving the front wheels, and thus the appearance of the bicycle 1000 is almost similar to that of the conventional bicycle. Therefore, there is no objection to the existing passengers, and the weight of the bicycle is also light.

또한 결합 조정부(1330)를 통해 전륜 지지부(1300)를 핸들 결합부(1110)와 전륜 구동부(1500)에 선택적으로 결합시키므로, 핸들의 좌우 회전을 전륜 구동에 사용하는 것과 자전거 방향 전환에 사용하는 것에 대한 상호 전환이 쉽고 빠르다. 따라서 탑승자는 전륜 구동 자전거를 편안하게 탈 수 있다.In addition, the front wheel support unit 1300 is selectively coupled to the handle coupling unit 1110 and the front wheel drive unit 1500 through the coupling adjustment unit 1330, so that the left and right rotation of the handle is used for driving the front wheel and for changing the bicycle direction. Interchange is easy and fast. Therefore, the occupant can comfortably ride the front wheel drive bicycle.

도 5는 본 발명의 다른 실시예에 따른 전륜 구동부를 나타내는 도면이다. 5 is a view showing a front wheel drive unit according to another embodiment of the present invention.

도 5에 도시된 바와 같이, 본 발명의 실시예에 따른 전륜 구동이 가능한 자전거의 전륜 구동부(2500)는 구동부(2510), 제1 전동기어(2520), 제2 전동기어(2530), 전륜 기어(2540), 일방향 클러치(2550), 동력 전달부(2560)를 구비한다. 구동부(2510)는 도 1에서 설명한 것과 동일하므로 자세한 설명은 생략한다. As shown in FIG. 5, the front wheel driving unit 2500 of the bicycle capable of driving the front wheel according to the embodiment of the present invention includes a driving unit 2510, a first electric gear 2520, a second electric gear 2530, and a front wheel gear. 2540, a one-way clutch 2550, and a power transmission unit 2560. Since the driver 2510 is the same as that described with reference to FIG. 1, detailed description thereof will be omitted.

제1 전동기어(2520)는 전륜 포크(2400)의 상부에 회전 가능하게 결합되며 구동부(2510)와 연결된다. 따라서 구동부(2510)가 회전하면 제1 전동기어(2520)도 회전하게 된다. 제2 전동기어(2530)는 전륜 포크(2400)의 하부에 회전 가능하게 결합되며 전륜 기어(2540)와 맞물린다. The first electric gear 2520 is rotatably coupled to the upper portion of the front wheel fork 2400 and is connected to the driving unit 2510. Therefore, when the driving unit 2510 rotates, the first electric gear 2520 also rotates. The second electric gear 2530 is rotatably coupled to the lower portion of the front wheel fork 2400 and meshes with the front wheel gear 2540.

본 실시예에서 전륜 포크(2400)는 전륜 지지부(2300)와 전륜(2600)의 중심축(2610)에 고정 결합된다. 따라서 전륜 포크(2400)가 제1 전동기어(2520)의 회전을 제2 전동기어(2530)에 전달하지 못한다. 제1 전동기어(2520)의 회전을 제2 전동기어(2530)에 전달하기 위해 전륜 구동부(2500)는 동력 전달부(2560)를 구비한다. 동력 전달부(2560)는 제1 전동기어(2520)와 제2 전동기어(2530)에 결합되어 제1 전동기어(2520)의 회전을 제2 전동기어(2530)에 전달한다. 본 실시예에서 동력 전달부(2560)는 제1 전동기어(2520)와 제2 전동기어(2530)에 결합된 봉 형상이지만, 다른 실시예에서는 동력 전달부(2560)가 원통 형상으로 전륜 포크(2400)가 동력 전달부(2560)의 내부에 위치하도록 설치될 수도 있다. 동력 전달부(2560)의 형상은 이들에 한정되는 것은 아니며, 제1 전동기어(2520)와 제2 전동기어(2530)를 연결하는 다양한 형상일 수 있다.In the present embodiment, the front wheel fork 2400 is fixedly coupled to the front wheel support 2300 and the central shaft 2610 of the front wheel 2600. Therefore, the front wheel fork 2400 does not transmit the rotation of the first electric gear 2520 to the second electric gear 2530. The front wheel driver 2500 includes a power transmission unit 2560 to transmit rotation of the first electric gear 2520 to the second electric gear 2530. The power transmission unit 2560 is coupled to the first electric gear 2520 and the second electric gear 2530 to transmit rotation of the first electric gear 2520 to the second electric gear 2530. In the present embodiment, the power transmission unit 2560 is a rod shape coupled to the first electric gear 2520 and the second electric gear 2530, but in another embodiment, the power transmission unit 2560 has a cylindrical shape and the front wheel fork ( 2400 may be installed to be located inside the power transmission unit 2560. The shape of the power transmission unit 2560 is not limited thereto, and may be various shapes connecting the first electric gear 2520 and the second electric gear 2530.

핸들의 좌우 회전에 의해 구동부(2510)가 회전하면, 구동부(2510)와 연결된 제1 전동기어(2520)가 회전하게 된다. 제1 전동기어(2520)의 회전에 의해 동력 전달부(2560)가 회전하게 되고, 따라서 제2 전동기어(2530)가 회전하게 된다. 제2 전동기어(2530)의 회전은 일방향 클러치(2550)에 의해 전륜(2600)을 전진 방향으로 회전시키는 경우에만 전륜(2600)에 전달되어 전륜(2600)을 전진 방향으로 구동한다. 일방향 클러치(2550)는 동력 전달부(2560)와 제2 전동기어(2530) 또는 동력 전달부(2560)와 제1 전동기어(2520) 사이에 위치할 수도 있다.When the driving unit 2510 is rotated by the left and right rotation of the handle, the first electric gear 2520 connected to the driving unit 2510 rotates. The power transmission unit 2560 is rotated by the rotation of the first electric gear 2520, and thus the second electric gear 2530 is rotated. The rotation of the second electric gear 2530 is transmitted to the front wheels 2600 only when the front wheels 2600 are rotated in the forward direction by the one-way clutch 2550 to drive the front wheels 2600 in the forward direction. The one-way clutch 2550 may be located between the power transmission unit 2560 and the second electric gear 2530 or between the power transmission unit 2560 and the first electric gear 2520.

한편, 본 명세서와 도면에 개시된 본 발명의 실시예들은 본 발명이 기술 내용을 쉽게 설명하고 본 발명의 이해를 돕기 위해 특정 예를 제시한 것일 뿐이며, 본 발명의 범위를 한정하고자 하는 것은 아니다. 여기에 개시된 실시예들 이외에도 본 발명의 기술적 사상에 바탕을 둔 다른 변형예들이 실시 가능하다는 것은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 자명한 것이다. On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented specific examples to easily explain the technical contents and help the understanding of the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

Claims (6)

전방에 핸들 결합부가 위치하며 후방에는 후륜이 회전 가능하게 결합되는 몸체;A handle coupling part is located at the front and a rear wheel is rotatably coupled to the rear; 상기 몸체의 핸들 결합부에 관통하여 회전 가능하게 결합되는 핸들축과 상기 핸들축의 상단에서 양측으로 분기되어 형성된 손잡이를 구비하는 핸들;A handle having a handle shaft rotatably coupled to the handle coupling portion of the body and a handle branched to both sides from an upper end of the handle shaft; 상기 핸들 결합부의 하부에 위치하여 상기 핸들축이 회전 가능하게 관통하는 전륜 지지부; A front wheel support part positioned below the handle coupling part to rotatably penetrate the handle shaft; 상기 전륜 지지부와 연결되며, 전륜이 회전 가능하게 결합되는 전륜 포크; 및A front wheel fork connected to the front wheel support and to which the front wheel is rotatably coupled; And 상기 핸들축과 상기 전륜을 연결하며, 상기 핸들의 좌우 회전을 전륜의 전진 방향 회전으로 변환하는 전륜 구동부;를 포함하는 것을 특징으로 하는 전륜 구동이 가능한 자전거.And a front wheel drive unit for connecting the handle shaft and the front wheel, and converting the left and right rotations of the handle into the forward rotation of the front wheel. 제1항에 있어서,The method of claim 1, 상기 전륜 구동부는 상기 핸들축의 하단에 결합된 구동부와, 상기 전륜 포크의 상부에 결합되며 상기 구동부와 연결되는 제1 전동기어와, 상기 전륜 포크의 하부에 결합된 제2 전동기어와, 상기 제2 전동기어와 연결되며 상기 전륜을 구동하는 전륜 기어와, 상기 구동부의 회전을 상기 전륜이 전진하는 방향으로만 회전되도록 전달하는 일방향 클러치를 구비하며,The front wheel drive unit includes a drive unit coupled to a lower end of the handle shaft, a first electric gear coupled to an upper portion of the front wheel fork and connected to the drive unit, a second electric gear coupled to a lower portion of the front wheel fork, and the second A front wheel gear connected to the electric gear and driving the front wheel, and a one-way clutch for transmitting the rotation of the drive unit so that the front wheel rotates only in the forward direction; 상기 전륜 포크는 상단이 상기 전륜 지지부에 회전 가능하게 결합되고 하단이 상기 전륜의 중심축에 회전 가능하게 연결되는 것을 특징으로 하는 전륜 구동이 가능한 자전거.The front wheel fork is a front wheel drive bike, characterized in that the upper end is rotatably coupled to the front wheel support and the lower end is rotatably connected to the central axis of the front wheel. 제1항에 있어서,The method of claim 1, 상기 전륜 구동부는 상기 핸들축의 하단에 결합된 구동부와, 상기 전륜 포크의 상부에 회전 가능하게 결합되며 상기 구동부와 연결되는 제1 전동기어와, 상기 전륜 포크의 하부에 회전 가능하게 결합된 제2 전동기어와, 상기 제2 전동기어와 연결되며 상기 전륜을 구동하는 전륜 기어와, 상기 제1 전동기어와 상기 제2 전동기어에 결합되어 제1 전동기어의 회전을 제2 전동기어에 전달하는 동력 전달부와, 상기 구동부의 회전을 상기 전륜이 전진하는 방향으로만 회전되도록 전달하는 일방향 클러치를 포함하는 것을 특징으로 하는 전륜 구동이 가능한 자전거.The front wheel drive unit includes a driving unit coupled to a lower end of the handle shaft, a first electric gear rotatably coupled to an upper portion of the front wheel fork and connected to the driving unit, and a second transmission rotatably coupled to a lower portion of the front wheel fork. Gears, a front wheel gear connected to the second electric gear and driving the front wheels, coupled to the first electric gear and the second electric gear transfers power to transfer the rotation of the first electric gear to the second electric gear. And a one-way clutch for transmitting the rotation of the driving unit to rotate only in the direction in which the front wheels move forward. 제1항 내지 제3항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 전륜 구동부는 상기 전륜의 양측에 각각 위치하는 한 쌍의 일방향 클러치를 포함하며,The front wheel drive unit includes a pair of one-way clutches respectively located on both sides of the front wheel, 상기 핸들의 좌측 회전시 일측 일방향 클러치만이 동력을 전달하고, 상기 핸들의 우측 회전시 타측 일방향 클러치만이 동력을 전달하는 것을 특징으로 하는 전륜 구동이 가능한 자전거.The only one-way clutch transmits power when the left side of the handle is rotated, and the other one-way clutch transmits power when the right side of the handle is rotated. 제1항 내지 제3항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 전륜 지지부를 상기 핸들 결합부와 상기 전륜 구동부에 선택적으로 결합시키는 결합 조정부를 더 포함하며, Further comprising a coupling adjustment unit for selectively coupling the front wheel support to the handle coupling portion and the front wheel drive, 상기 전륜 지지부가 상기 핸들 결합부와 결합되는 경우에는 상기 핸들의 좌우 회전에 의해 상기 전륜이 구동하며, 상기 전륜 지지부가 상기 전륜 구동부와 결합되는 경우에는 상기 핸들의 좌우 회전에 의해 방향 전환이 가능한 것을 특징으로 하는 전륜 구동이 가능한 자전거.When the front wheel support is coupled to the handle engaging portion, the front wheel is driven by left and right rotation of the handle, and when the front wheel support portion is coupled to the front wheel drive, the direction can be changed by left and right rotation of the handle. The bicycle which can drive the front wheel characterized by the above-mentioned. 제5항에 있어서,The method of claim 5, 상기 전륜 지지부는 외주면에 형성된 결합 조정홈과 상기 결합 조정홈 내부에 위치하며 상하로 구멍이 형성된 지지축을 구비하며, The front wheel support portion has a coupling adjustment groove formed on the outer circumferential surface and the support shaft is formed in the coupling adjustment groove and formed up and down holes, 상기 결합 조정부는 상기 지지축에 형성된 구멍에 상하로 이동 가능하게 결합되는 것을 특징으로 하는 전륜 구동이 가능한 자전거. And the coupling adjusting unit is coupled to the hole formed in the support shaft so as to be movable up and down.
PCT/KR2012/000989 2011-02-11 2012-02-10 Front-wheel-drive bicycle Ceased WO2012108710A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2011-0012165 2011-02-11
KR20110012165 2011-02-11
KR1020120013108A KR20120092516A (en) 2011-02-11 2012-02-09 Bicycle capable of being driven by front wheel
KR10-2012-0013108 2012-02-09

Publications (2)

Publication Number Publication Date
WO2012108710A2 true WO2012108710A2 (en) 2012-08-16
WO2012108710A3 WO2012108710A3 (en) 2012-10-11

Family

ID=46639073

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/000989 Ceased WO2012108710A2 (en) 2011-02-11 2012-02-10 Front-wheel-drive bicycle

Country Status (1)

Country Link
WO (1) WO2012108710A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111032503A (en) * 2017-10-12 2020-04-17 罗弼洙 Propulsion device for bicycle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100283133B1 (en) * 1998-09-08 2001-03-02 박준신 Bicycle drive system
KR20040097109A (en) * 2004-10-29 2004-11-17 신철균 Front wheel driving apparatus of bicycle
KR100868202B1 (en) * 2007-04-04 2008-11-12 이규상 Running body with front wheel drive for preventing interference

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111032503A (en) * 2017-10-12 2020-04-17 罗弼洙 Propulsion device for bicycle

Also Published As

Publication number Publication date
WO2012108710A3 (en) 2012-10-11

Similar Documents

Publication Publication Date Title
WO2012023712A2 (en) Pedal-driven roller board
EP0768969B1 (en) An arm propulsion system for bicycles and similar, that may be combined with the conventional foot propulsion
WO2016093596A1 (en) Multipurpose bicycle exercise machine
WO2010147310A2 (en) Manually operated travelling device
WO2010016673A2 (en) Accelerating apparatus for a bicycle for improving the speed of travel
WO2013123851A1 (en) Tricycle gear shift unit, and tricycle capable of being pedaled back and forth
EP0129364A2 (en) A machine for utilising muscular energy
US7066480B2 (en) System for controlling a moving part, steering system for a light vehicle and tricycle fitted with said system
WO2014171756A1 (en) Cycle with single wheel
WO2010134791A2 (en) Auxiliary driving apparatus for a bicycle
WO2015037860A1 (en) Jumping bike having horse-riding effect
WO2012108710A2 (en) Front-wheel-drive bicycle
WO2011034289A2 (en) Bicycle for exercising the upper part of the body
WO2011065637A1 (en) Bicycle which operates by walking on pedals
WO2014073933A1 (en) Asymmetric elliptical chainring capable of fine-angle variation, and crankset of bicycle comprising same
CN205602036U (en) Turn to bicycle behind forerunner
KR20120092516A (en) Bicycle capable of being driven by front wheel
WO2009148266A2 (en) Bicycle handle
US11401000B2 (en) Bicycle propelling device
KR101428876B1 (en) Front wheel driving bicycle by swing motion of arms
WO2010056010A2 (en) Double driving apparatus for a bicycle
WO2010134793A2 (en) Auxiliary driving apparatus for a bicycle
WO2022191430A1 (en) Bicycle having power driving device provided on handle part
WO2017222209A1 (en) Bicycle propulsion device
EP3655315B1 (en) Pedal scooter

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12744264

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12744264

Country of ref document: EP

Kind code of ref document: A2