JPH0620176U - Special car - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a special vehicle that uses large wheels to maintain stability, and that is safe in that it does not trip over when tripping or getting caught. The special vehicle 10 includes a chassis 11 having a seat 50, large-diameter fixing rings 13 attached to both sides of the chassis 11, and large-diameter wheels 14 rotatably mounted outside the fixing ring 13. And a small-diameter wheel 12 mounted on the front side or rear side of the chassis 11 so as to be freely directional.
And a power source for driving the large diameter wheel 14 or the small diameter wheel 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a special vehicle including wheels with large diameters (including handicapped persons, elderly persons, and amusement vehicles).

[0002]

[Prior art]

 Conventionally, special cars used by the physically handicapped and the elderly are designed with safety in mind to prevent them from tripping over and tripping when getting in and out. It was common to have wheels.

[0003]

[Problems to be solved by the device]

 However, if small wheels are used for all of them, there is a problem that stability is poor and it is easy to fall, so in some cases, it is considered to use large wheels. When the wheel is used in a small-sized automobile, the wheel covers the side surface of the automobile, which causes an obstacle when moving up or down, or when a door is provided, it is difficult to attach the door. The present invention has been made in view of such a situation, and uses a large wheel to maintain stability, and the wheel does not get in the way when getting on and off, and the door is easy to install. The purpose is to provide a car.

[0004]

[Means for Solving the Problems]

 A special vehicle according to claim 1, which is in line with the above object, has a chassis having a seat, large-diameter fixing rings attached to both sides of the chassis, and a large-diameter rotating ring mounted outside the fixing ring. The vehicle includes a wheel, a small-diameter wheel directionally attached to the front side or the rear side of the chassis, and a power source for driving the large-diameter wheel or the small-diameter wheel.

[0005]

In the special vehicle according to the first aspect, it is possible to effectively use the hollow portion of the fixed ring of the large-diameter wheel mounted on both sides of the chassis. For example, a door is provided in this portion to provide an internal space. You can get in and sit in the seat. Then, the large-diameter wheel or the small-diameter wheel is driven by a power source to run. The large-diameter wheels absorb vibrations even on uneven roads, enabling stable driving without vibrations.

[0006]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. FIG. 1 is a side view of a special vehicle according to an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a cross-sectional view of a main part of a small diameter wheel attached to a chassis used in the special vehicle, and FIG. Is an explanatory view showing driving of a small diameter wheel used for the special vehicle, FIG. 5 is a sectional view of a main portion of a large diameter wheel mounted on a chassis used for the special vehicle, and FIG. 6 is a large diameter wheel according to another embodiment. FIG. As shown in FIG. 1, a special vehicle 10 according to an embodiment of the present invention has a small-diameter wheel 12 rotatably fixed to a front side of a chassis 11, and fixing rings 13 are attached to both sides of the chassis 11. A large-diameter wheel 14 is rotatably mounted on 13 and a body panel 15 is provided on the chassis 11. As shown in FIG. 3, the small-diameter wheel 12 is rotatably mounted via a bearing receiver 17 fixed to a small-diameter wheel mounting hole 16 of the chassis 11. The bearing receiver 17 is provided with a thrust bearing 18 and radial bearings 19 and 20.

As shown in FIG. 4, the small-diameter wheel 12 includes two tires 22 mounted on the wheel 21. The tires 22 are connected to each other by a connecting shaft 23, a bevel gear 24 is fixed to the connecting shaft 23, a bevel gear 25 that meshes with the bevel gear 24 is provided, and the bevel gear 25 is a drive shaft 26. Fixed to the bottom edge of. The connecting shaft 23 is rotatably supported by bearings 27 and 28, and the drive shaft 26 is provided with a bearing 29. A swivel cylinder 31 is fixed to an upper portion of the bearing receiver 30 of the bearing, and the thrust bearing 18 and radial bearings 19 and 20 are mounted on the swivel cylinder 31, as shown in FIG.

As shown in FIG. 3, the revolving cylinder 31 has a revolving gear 32 fixed to the outer side of the upper part, and a bearing 33 provided on the inner side of the upper part. A direction changing gear 34 is meshed with the turning gear 32, and the direction changing gear 34 is fixed to the motor shaft 35. The motor shaft 35 penetrates a mounting frame 36 fixed to the chassis 11, and a reduction motor 37 having the motor shaft 35 is fixed to the mounting frame 36. Further, the mounting frame 36 rotatably penetrates the drive shaft 26, and the drive shaft 26 is connected to the output boss of the deceleration motor 38 which has been subjected to the sflein processing.

As shown in FIG. 1, the fixing ring 13 is fixed to the side surface of the chassis 11 with bolts 39, and the other portions are fixed to the left and right fixing rings 13 by the left and right connecting bars 42. As shown in FIG. 5, rollers 41 are rotatably provided on a plurality of pins 40 on the outer peripheral surface of the fixed ring 13 via bearings or bushes. The side surface of the roller 41 is in contact with bushes 44, 45 provided along the inner peripheral surface of the outer ring 43, and the large diameter wheel 14 having the tube 46 built therein is mounted on the outer peripheral portion thereof. In FIGS. 1 and 2, 47 is a brake, which is fixed to the fixed ring 13 so as to tighten the outer ring 43 by hydraulic pressure.

As shown in FIGS. 1 and 2, the chassis 11 has a battery 48 at the front, an operation platform 49 at the rear of the battery 48, and a seat 50 fixed at the rear thereof. The operation console 49 is connected to the deceleration motors 37 and 38 and the brake 47, a drive lever (not shown) that drives the deceleration motor 38, a direction change lever (not shown) that drives the deceleration motor 37, and a brake (not shown) that operates the brake 47. A lever and a display panel for displaying the charge capacity of the battery 48 are provided. A charger (not shown) is fixed to the chassis 11, and the charger is connected to the battery 48 and the reduction motor 37. The body panel 15 is made of a synthetic resin material, the connecting bar 42 is passed through a predetermined portion, and a synthetic resin transparent door 52 that is opened and closed via an opening / closing lever 51 is provided on one side surface, and the other side surface is also provided. A door (not shown) similar to the door 52 is provided. Reference numeral 53 shown in FIG. 2 is a window.

Another embodiment of mounting the large-diameter wheel 14 on the fixing ring will be described. As shown in FIG. 6, rolling rollers 55 are provided between the outer ring 43 and the fixing ring 54 at a number of predetermined intervals. The pins 56 are rotatably arranged in the center of the rolling roller 55, and the respective pins 56 are fixed to the outer ring 57 by the bolts 58. As a result, the load of the wheel is directly transmitted to the fixing ring 54 via the rolling roller 55, so that a large load can be received. In addition, 59 indicates a cover plate and 60 indicates a tightening bolt.

Next, a method of using the special automobile 10 will be described. As shown in FIGS. 1 and 2, the user of the special vehicle 10 moves the opening / closing lever 51 to open the door 52, sits on the seat 50, and closes the door 52. Then, the brake 47 is released using the brake lever, and the drive lever is moved to rotate the deceleration motor 38. As the deceleration motor 38 rotates, the drive shaft 26 rotates as shown in FIGS. 3 and 4, and the bevel gear 24 is rotated via the bevel gear 25. The rotation of the bevel gear 24 causes the small-diameter wheels 12 on both sides to rotate via the connecting bar 42, so that the special vehicle 10 runs. In this embodiment, it is also possible to transmit power to the small diameter wheels by using a differential gear device. The speed is adjusted by moving the drive lever and substantially controlling the voltage applied to the deceleration motor 38. In this method, chopper control of the output current is performed.

As shown in FIGS. 3 and 4, the direction conversion lever is moved to rotate the deceleration motor 37 to rotate the direction conversion gear 34, and further the direction conversion gear 34 is rotated. The meshing turning gear 32 is rotated, and the small diameter wheel 12 is rotated through the turning cylinder 31. To turn in the direction opposite to the turning direction, the direction changing lever is moved in the opposite direction to the above. To stop, return the drive lever to its original position and move the brake lever. As described above, the special vehicle 10 according to the embodiment of the present invention can easily enter and leave the special vehicle 10 by opening and closing the door 52 using the hollow of the fixing ring 13 even for an elderly person or a physically handicapped person. In addition, since large-diameter wheels are used as the main wheels to which a load is applied, it is possible to drive stably without vibration even on some uneven roads.

In the above-mentioned embodiment, the driving was performed by the two-wheel wheels using the front small-diameter wheel 12, but the large-diameter wheel 14 is provided with the friction wheel connected to the drive source, and the large-diameter wheel 14 is attached. It is also possible to use a driving wheel, and when a battery is used as the driving source, a solar cell is arranged on the body panel 15 so that the vehicle can run while being charged, or the small diameter wheel 12 It is of course possible to use an engine as the drive source. Further, in the above-described embodiment, the front small-diameter wheel is two wheels, but it may be one wheel, and the small-diameter wheel 12 may be turned by manual handle operation. It is possible. Instead of directly connecting the chassis 11 and the fixing ring 13 with the bolts 39, a shock absorber may be interposed to make the ride more comfortable. Adjusting the attachment position of the connecting bar 42 to the fixing ring 13, removing the seat 50, and attaching the door to the rear side of the body panel 15 so that the passenger can get on the vehicle from the rear of the special vehicle 10 while sitting on the chair. You can

[0015]

[Effect of device]

 As is clear from the above description, the special vehicle according to claim 1 has large-diameter fixing rings attached to both sides of the chassis, and large-diameter wheels are mounted on the outside of the fixing rings. It is possible to provide a window or a doorway in the section. Therefore, the side space of a small automobile can be effectively used. Further, by using large-diameter wheels as the main wheels to which a load is applied, the vehicle can travel stably and can travel without vibration even on a slightly uneven road.

[Brief description of drawings]

FIG. 1 is a side view of a special vehicle according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a cross-sectional view of a main part of a small diameter wheel attached to a chassis used for the special vehicle.

FIG. 4 is an explanatory diagram showing driving of small-diameter wheels used in the special vehicle.

FIG. 5 is a cross-sectional view of a main part of a large-diameter wheel attached to a chassis used for the special vehicle.

FIG. 6 is a cross-sectional view of a main part of a large-diameter wheel attached to a chassis used in a special vehicle according to another embodiment.

[Explanation of symbols]

 10 Special vehicle 11 Chassis 12 Small diameter wheel 13 Fixing ring 14 Large diameter wheel 15 Body panel 16 Small diameter wheel mounting hole 17 Bearing receiving 18 Thrust bearing 19 Radial bearing 20 Radial bearing 21 Wheel 22 Tire 23 Connecting shaft 24 Bevel gear 25 Bevel gear 26 Drive Shaft 27 Bearing 28 Bearing 29 Bearing 30 Bearing receiver 31 Swiveling cylinder 32 Swiveling gear 33 Bearing 34 Direction changing gear 35 Motor shaft 36 Mounting frame 37 Reduction motor 38 Reduction motor 39 Bolt 40 pins 41 Roller 42 Connecting bar 43 Outer ring 44 Bushing 45 Bushing 46 Tube 47 Brake 48 Battery 49 Control 50 Seat 51 Open / close lever 52 Door 53 Window 54 Fixing ring 55 Rolling roller 5 Pin 57 outer ring 58 bolt 59 cover plate 60 clamping bolts

Claims (1)

[Scope of utility model registration request] 1. A chassis having a seat, large-diameter fixing rings attached to both sides of the chassis, large-diameter wheels rotatably mounted outside the fixing ring, and a front side or a rear side of the chassis. A special vehicle having a small-diameter wheel mounted on the vehicle in a freely rotatable manner and a power source for driving the large-diameter wheel or the small-diameter wheel.