JP2006158487A - Self-propelled three-wheeled scooter and bike for wheelchair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a three-wheeled scooter and a bike which are a device to enable a driver to ride with a wheelchair safely and easily and to ensure stability during the travel, provide the pleasure of steering to a driver, and expand a living area of a user of the wheelchair. <P>SOLUTION: A motor-driven rack-and-pinion is mounted between a front frame and a rear power unit of the three-wheeled scooter so that an inclination to the right and left is intentionally restored by an operation of a button on the left of the driver. The driver rides on the scooter from the side of the wheelchair since a slide table which enables the loading of the wheelchair in the longitudinal direction between a front wheel steering part and the rear power unit and moves to the left (in case of left-hand traffic) is mounted. The vehicle is provided at a low price by modifying a commercially available vehicle. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a self-propelled three-wheeled scooter for a wheelchair and a motorcycle that can be operated while being in a wheelchair.

  The following Patent Documents 1 and 2 are already known as self-propelled vehicles for wheelchairs as conventional technologies, and it is easy to check safety when getting on because the wheelchair is loaded from the rear of the vehicle. Confirming the safety of the wheelchair users will be insufficient and dangerous. When the slope angle is large, the ride requires considerable arm strength, and when getting off, if the slope angle is large, the speed is increased, which is dangerous. In addition, if the slope angle is set small, the slope becomes long and the mounting position is restricted, so that the minimum ground clearance is insufficient and the running performance is significantly affected. The present invention is safer because it is easier to check backwards when getting off because the vehicle is boarded from the lateral direction.

  In the second conventional example, a commercially available three-wheeled scooter inclines the front frame portion to ensure stability during turning, and may swing during low-speed traveling. As a technology for this purpose, Patent Document 3 below is already known as an automatic self-supporting device for a tricycle. The present invention does not require an automatic self-supporting device because the power frame controls the inclination of the front frame.

6-59850 JP-A-9-299407 JP-A-60-169382

  Wheelchair users can get on and off safely, have a small area occupied when stopped and have a maximum speed of about 30 km / h, and can run stably when turning, and can stand upright even when driving at low speed without swinging even when the road surface is lowered to the left. The challenge is to provide low-priced self-propelled three-wheeled scooters and motorcycles for wheelchairs that can be operated and enjoyed.

  In order to solve the above-mentioned problems, it is a first means that can be provided at a low cost by attaching a device of the following solution to a commercially available three-wheeled scooter. The commercially available three-wheeled scooter is a very safe vehicle, and many women use it daily for the delivery of soft drinks, etc., and it is treated as a motorbike under the domestic regulations and has a running performance of about 30 km per hour. There is no significant obstacle to traffic on ordinary roads, and it has sufficient durability and is an excellent base for wheelchair vehicles.

  As a solution device, the device for fixing the wheelchair on the plate moving from the lateral direction of the vehicle and restoring the tilt by lifting the tilted front frame part is a second means for wheelchair users to get on and off safely. is there.

  By using a device that restores the inclination, the riding position is tilted by the driver's operation during cornering to ensure stability, and the upright state is maintained by the operation even when the vehicle is driven to the left on the shoulder. A wheelchair user is not good at shifting weight and can restore the balance when the balance is lost.

  The effect of the present invention is intended to be used as a means for moving a wheelchair user, and widens the living area and facilitates advancement into the local community. In the past, it was only possible to move to a suburban supermarket equipped with a range of action only by wheelchairs, near a station bus stop by public transport, and a car parking for disabled people, but if wheelchairs are provided at a low price, many wheelchair users Allow people to move anywhere.

  A wheelchair user usually enjoys maneuvering without manipulating the vehicle. The present invention is significant in terms of mental health and autonomy. Moreover, wheelchair users can only receive stimuli in the front-rear direction and the up-down direction on a daily basis, but the present invention can provide new stimuli by tilting in the left-right direction.

  There are many parking lots in shopping districts in the city, and there are cases where it is not possible to get off the wheelchair from the car and go to the wheelchair in front of the store due to a difference in level. If you go in front of the store with a three-wheeled scooter, you can get the products you want and enjoy wind shopping. In this case, there are areas where scooters and bicycles are subject to parking violations, but this is only a small part compared to car parking violation areas.

  Recently, many electric wheelchairs have been running, but if it is a self-propelled wheelchair that cannot enter department stores or shops, it can enter most department stores and shops. There is no need to transfer what you purchased, and you can shop smoothly by riding a three-wheeled scooter from a nearby bicycle or motorcycle parking lot.

  As the three-wheeled scooter requires fewer parking spaces, many businesses try to accept persons with disabilities, and the range of occupation choices for wheelchair users has expanded, making it easier for them to find the job they want. The three-wheeled scooter can carry a lot of luggage and is stable, so wheelchair users can launch various businesses. For example, delivery of small parcels, delivery of food, and mobile sales.

  Wheelchair users may be using their wheelchairs due to accidents caused by motorcycles due to spinal cord injury, etc. Some of them have a dream of riding a motorcycle again, but at the present time they can only fulfill their dreams and give up, making it possible to touring with previous motorcycle friends if the power performance etc. can be improved in the future You can give a dream that In addition, accommodation facilities that accept wheelchair users when they gather on a three-wheel scooter and go on overnight touring will create barrier-free construction and create a synergistic effect that attracts new wheelchair users, creating barrier-free facilities in various places and enhancing social capital You can aim.

  The present invention contributes to the pleasure of driving a wheelchair user, and in accordance with domestic regulations, a motorbike license is required at a minimum. The driving school that allows them to get on the general roads smoothly and safely and obtain a license for wheelchair users without a license qualification is drastically decreasing due to the declining birthrate, and the situation is severe in terms of management. There may be a slight increase in the number of students. It can also establish a social status as a school that is friendly to people with disabilities.

  Also, due to disasters in recent years, volunteer activities are thriving, but wheelchair users were not able to participate in volunteer activities. By using the present invention, a combination of a motorcycle on which a healthy person rides and a three-wheeled scooter of a wheelchair user can transport non-refractory materials and the like, which may contribute to the social contribution of disabled people.

  The three-wheeled scooter is a stable vehicle, and its fall is very small compared to ordinary motorcycles, but in the unlikely event of a fall, the tilting button is operated to tilt the rear frame part in the opposite direction to make it easier to raise the car body be able to.

  In the best mode, implementing the following content on a commercially available three-wheeled scooter can provide a vehicle at a low price, and can be safe and excellent in strength. Next, one embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic diagram of the present invention, showing the positional relationship of each component. Wheelchair users and covers are not shown. A commercially available three-wheel scooter seat is removed, the fuel tank 13 and the battery 12 are moved onto the rear frame portion 2, and a space for mounting a wheelchair is provided below the rear frame of the steering device 8. The wheelchair fixing device 5 for fixing the wheelchair is provided on the lateral movement device 4 on which the wheelchair 4 is installed, and the wheelchair is fixed by operating the fixing lever device 9 at the lower center of the handle. The fixed position of the wheelchair is close to the seat position of a commercially available three-wheel scooter so that the center of gravity does not change.

  FIG. 3 is a top view of the tilting device and shows an embodiment of the tilting device. The front frame portion 1 and the rear frame portion 2 are connected by a connecting device 7 and can be tilted to the left and right with respect to the traveling direction. The left handle portion tilt switch is operated by the switch operation according to FIG. The rack gear 18 moves left and right so that the driver can intentionally operate the front frame portion 1 by tilting. FIG. 3 is also a relationship diagram of the tilting device when traveling straight, and the rack gear 18 is located at the center of the operating range. FIG. 4 shows the state of the vehicle during straight running and low-speed cornering. The front frame 1 is kept in a neutral state, and the front frame portion and the slide rod 19 are a rod side ball joint 20, a joint plate 21, and a front frame side ball joint. 22 is connected. A small amount of play is provided in the connection between the joint plate 21 and the ball joints 20 and 22 to absorb the road surface gap together with the suspension in the rear frame portion 2. When the vehicle is traveling at a low speed of less than about 15 km, it is sufficiently possible to turn the left and right corners only by operating the steering wheel, and the vehicle can travel straight.

  When the vehicle speed is about 20 km or more (when driving at medium speeds), the cornering and rear wheels are lifted due to the nature of the three-wheeled scooter and become unstable due to the nature of the three-wheel scooter. It is possible to stabilize the vehicle. During right cornering during medium speed running, the left handle handle tilt switch (Fig. 2358) is operated to the right to drive the rack & pinion gear BOX 17 with DC motor to move the rack gear 18 to the right side of the operating range and to be connected. 21. When the front frame 1 is tilted to the right by 21 and FIGS. 5 and 6 are escaped, the left handle tilt switch FIG. 2358 is operated to the left to restore. FIG. 7 and FIG. 8 enable stable medium speed running by performing the opposite operation to the above operation even at the left corner. In the S-shaped corner, the left handle portion tilt switch 2358 is continuously operated to the left and right.

  In domestic road conditions, the road surface on which the three-wheeled scooter travels is assumed to be semi-cylindrical and descends to the left end. In this case as well, the left steering wheel tilt switch is operated to the right to maintain the upright state. Things are possible.

  FIG. 9 is a perspective view of the lateral movement device. FIG. 10 is an enlarged view of the moving part a. The lateral movement device has a pair of front and rear lateral pinion gears 30 connected by a worm gear reduction motor 29 as a power and a lateral movement drive shaft 38, and a slide plate 28 connected to the slide table 27 and a pair of front and rear. Of the lateral movement guide 39 and the lateral movement rack gear 31 on the guide. The slide plate 28 is provided with a moving ground roller 32 at the front and rear of the left end so that the wheelchair user can smoothly move laterally while riding the wheelchair. Two wheelchair fixing devices 5 are installed on the upper part of the slide plate 28 so as to match with the left and right widths of the wheelchair fixing side disc FIG. 1946 attached to the wheelchair lower frame FIG. The lateral movement guide 39 is fixed to the under frame 34 by facing the opening of the U-shaped cross section before and after the slide table 27, and the lateral movement guide roller 40 attached to the slide table 27 moves inside. A rack gear 31 is attached to the upper part of the front / rear lateral movement guide, and is moved laterally by a lateral movement pinion gear 30 rotated by a lateral movement drive shaft 38 from a motor 29 with a worm gear reduction gear. The front side movement guide 39 is provided with a movement prevention device 33 provided with a stopper pin by a wire for preventing the slide plate 28 from moving or floating during traveling.

  FIG. 11 is a view in which the slide plate 28 is in contact with the wheelchair when the front frame 2 is tilted to the left and the slide table is also moved to the left end. The wheelchair user 26 self-propels the slide plate 28. Riding the wheelchair 3 is easy. FIG. 15 shows the positional relationship between the vehicle and the wheelchair before boarding, and the state of getting on the slide plate 28 from behind. FIG. 16 is a view in which a wheelchair user 26 gets on the slide plate 28 while riding on the self-propelled wheelchair 3.

  FIG. 12 is a diagram in which the slide table 27 and the slide plate 28 are moved to the right side by the worm gear reduction motor 29 after the self-propelled wheelchair 3 is fixed to the slide plate 28. The change in angle between the slide table 27 and the slide plate 28 is displayed. The slide table 27 and the slide plate 28 are connected to each other by a slide table / slide plate joint 41 so that the mounting angle can be freely changed. FIG. 13 is a diagram in which the slide table 27 is moved to the right side, and FIG. 17 is a diagram of a vehicle in which the wheelchair is lifted to the right side. FIG. 14 is a lateral movement device 4 in which the inclination of the front frame portion is restored to the upright state, and FIG. 18 is a diagram of the vehicle when the inclination is restored, and is in a traveling preparation state.

  FIG. 19 is a side view of the wheelchair fixing device 5. A hydraulic caliper 51 attached to the slide plate 28 and a wheelchair-side fixing disk 46 attached to the wheelchair side are provided, and one set on each side is installed. The upper part of the hydraulic caliper 51 is provided with a wire-type lock device 49 and is locked when the wire-type lock device claw portion 50 enters the wire lock hole 44 of the wheelchair-side fixing disk 46. In FIG. 19, the wheelchair side fixed disk 46 is moved from right to left in FIG. 19, and the guide disk 47 is inserted into the hydraulic caliper 51 according to the guide plate 52 and the wheelchair side fixed disk 46 is sandwiched below the steering device 8. The lock type hydraulic lever of the hydraulic cylinder 54 of the attached fixing lever device 9 is operated to apply hydraulic pressure to the hydraulic caliper 51 to crimp the wheelchair-side fixing disk 46 to further integrate the wheelchair and the vehicle. FIG. 20 is a perspective view from the rear of the apparatus before fixing, and FIG.

  FIG. 22 is a perspective view of the fixing device operation unit 9. Since it is not operated during traveling, it is attached to the frame below the steering unit 8. A piston of a hydraulic cylinder 54 provided with an oil tank 53 is pushed in by a lock hydraulic lever 55 to apply hydraulic pressure to the fixing device 5. The lock-type hydraulic lever 55 can be fixed at the push-in position, and the traveling wheelchair is integrated with the vehicle. A fixing device wire lock releasing lever 56 is attached to the left side of the locking hydraulic lever 55, and the wheelchair can be separated from the vehicle by operating the fixing device wire lock releasing lever 56 after releasing the hydraulic lever. The travel prevention device release lever 57 on the right side of the hydraulic cylinder 54 is in a locked position while the vehicle is running, and lifts the wire and releases it when the slide plate 28 is moved laterally.

  FIG. 23 shows the positional relationship between the tilt switch and the lateral movement switch on the left side of the handle. FIG. 24 is a flowchart from getting on and off of a wheelchair user.

Overview of wheelchair self-propelled three-wheel scooter Side view of a self-propelled three-wheeled scooter for wheelchairs It is a top view of the tilting device and shows the positional relationship during straight traveling or low-speed cornering Front frame standing upright when the vehicle is traveling straight and at low-speed cornering Diagram of tilting device when running at medium speed right cornering Front right frame tilt state diagram during medium speed right cornering Middle speed left cornering tilting device relation diagram Front frame left tilt state diagram during medium speed left cornering Lateral movement device perspective view Part a enlarged view Wheelchair board grounding diagram Transverse plate halfway diagram Plate at the end of movement Inclined restoration plate Whole view of plate ground vehicle when riding in wheelchair Wheelchair fixed vehicle overall view Overall view of the vehicle when the plate is lifted Overall view of vehicle during tilt restoration Wheelchair fixing device side view Perspective view before fixing device Perspective view after fixing device is fixed Fixing device operation unit perspective view Left handle side tilt / lateral movement device operation section Flowchart from getting on and off of wheelchair user

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front frame part 2 Rear frame part 3 Self-propelled wheelchair 4 Lateral movement apparatus 5 Wheelchair fixing apparatus 6 Tilt power apparatus 7 Connection apparatus 8 Steering apparatus 9 Lever apparatus 10 Fixing fall roller 11 Motor | power_drive and drive apparatus 12 Battery 13 Fuel tank 14 Power switch Sub key 15 Rear tilt switch (forward / reverse switching type)
16 rear side switch (forward / reverse switching type)
17DC motor rack & pinion gear BOX
18 rack gear 19 slide rod 20 rod side ball joint 21 joint plate 22 front frame side ball joint 23 right travel limit switch during travel (explicit indication)
24 tilt limit switch for left travel (explicit indication)
Left tilt limit switch when getting on and off 25 (Explicit indication)
26 Wheelchair user 27 Slide table 28 Slide plate 29 DC motor 30 with worm gear reduction gear 30 Pinion gear for lateral movement 31 Rack gear for lateral movement 32 Grounding roller for movement 33 Movement prevention device for traveling 34 Under frame 35 Movement prevention device for traveling Wire 36 fixing device release wire 37 fixing hydraulic hose 38 lateral movement drive shaft 39 lateral movement guide 40 lateral movement guide roller 41 slide table slide plate joint 42 plate side movement prevention device 43 wheelchair lower frame 44 wire locking hole 45 fixing Disc mounting holder 46 Wheelchair side fixed disc 47 Guide disc 48 Unlocking wire 49 Wire type locking device 50 Wire type locking device Claw 51 Hydraulic caliper 52 Guide plate 53 Hydraulic cylinder Over the oil tank 54 the hydraulic cylinders 55 lock hydraulic lever 56 fixed device wire lock release lever 57 during running movement preventing device releasing lever 58 tilt switch (forward and reverse switch type)
59 lateral movement switch (forward / reverse switching type)
60 Steering handle 61 Left grip

Claims (3)

  The driver is driven by a power unit attached to the upper part of a device that has a steering device for a single front wheel and that can be tilted to the left and right and a rear frame unit composed of two wheels on the left and right of the rear wheel equipped with a driving device by a prime mover. Self-propelled three-wheeled scooter and wheelchair for wheelchairs characterized by intentional inclination restoration   It is possible that a wheelchair user can get on the wheelchair with power by linking the lateral movement and the inclination of the vehicle by a power device that can move the slide table having a length and width that the wheelchair can ride on the rear of the steering device of the front wheel. Self-propelled three-wheeled scooter and wheelchair for wheelchair A self-propelled three-wheel scooter for a wheelchair characterized by fixing a wheelchair and a vehicle by crimping a fixing disk attached to the lower part of the wheelchair with a wire-type locking device installed on a slide table and a hydraulic caliper, and bike

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