JP3418314B2 - Wheelchair simple vehicle - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple vehicle for a wheelchair, which can be operated as it is by using a wheelchair.

[0002]

2. Description of the Related Art Generally, a wheelchair is used as a means for moving a physically handicapped person. However, there is a problem that the wheelchair alone limits the range of movement and imposes a heavy burden on the disabled when moving on a slope or the like. On the other hand, there are electric wheelchairs, but there is a problem that the wheelchair itself lacks the ability to climb over steps and is affected by the weather, and the battery installed for weight saving is small and has a small capacity. There is also a problem that the movement range is narrow because it is unavoidable. On the other hand, it has been attempted to get into a vehicle with a wheelchair, but most of these are for transporting people with disabilities, and in particular, the floor of the vehicle rises in a step shape with respect to the ground. I needed to care for someone else when I got on and off.

[0003]

Therefore, there is a vehicle provided with an elevating step capable of ascending / descending between the ground and the floor. In this, the elevating step mechanism is attached to the vehicle in a custom order. For this reason, there is a problem that the weight and size of the vehicle become large, not just because the cost becomes high. In addition, with this one, the lifting step is a method of protruding from the floor of the vehicle to the outside,
When getting on and off, there is a problem that an extra space is required as much as the step protrudes, and it cannot be used unless a wide parking space is secured.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances in view of solving the above problems, and is a wheelchair for a self-propelled simple vehicle which can be operated. A state in which a person sitting in the wheelchair can drive
In the configuration that can be boarded with
Main frame with a generally U-shape that opens at the rear and forms an entrance / exit
And a vertically-arranged part of the main frame
Provide a floor board and a parallel link mechanism for raising and lowering the floor board.
The parallel link mechanism is an electric actuator.
The left and right edges of the floorboard and the left and right edges of the main frame.
It is installed between the legs and the floor board
With the ground level position where you can get on and off the chair and the position above the ground level
Ascending in parallel with the ascending position where the above operation is possible.
A simple vehicle for a wheelchair characterized by being configured so that it can be displaced downward . And by doing this,
The passenger of the vehicle so as to be in parallel is lift floor plate itself, it is obtained by allowing unnecessary a dedicated lifting steps pushed out to the outside. This makes the vehicle very compact and does not require much parking space.
In addition, since the floors move up and down in parallel in the vehicle, no space is required for getting on and off. In this one, the electric actuator
A switch for driving the engine is used to drive the front of the vehicle.
It is provided on the seat and the rear part of the vehicle body where the entrance and exit are formed.
Can be characterized by doing this
The rear switch when you are about to board.
And lower the floorboard to the ground position, and in this state
You can board the wheelchair from the department. Then board
Dara, operate the switch on the driver's side to move the floorboard to the raised position.
It would be good to raise it. Further, a configuration including front wheel lifting means for lifting the front wheel of the wheelchair, rear part holding means for holding the wheelchair rear part so that the wheelchair rear wheel becomes the vehicle rear wheel, and vehicle locking means for locking the wheelchair to the vehicle, By doing so, a simple structure can be obtained, and manufacturing at low cost becomes possible.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Next, one of the embodiments of the present invention will be described with reference to the drawings. In the drawings, 1 is a box-shaped vehicle body with a roof, and the vehicle body 1 is configured by using a substantially frame-shaped main frame 2 whose rear is open. Support frame 3 in a substantially L shape
And a pair of front wheels 4 are provided at the tips of the respective support frames 3.
A front wheel case 5 with an electric motor 4 for a is pivotally supported via a support shaft 6 so as to be swingable in the left-right direction. Reference numeral 7 denotes a steering link interposed between the front and rear wheel cases 5, the steering link 7 being moved in the left-right direction by driving an electric motor 8 for steering, whereby the vehicle 1 can be steered.
The drive control of the steering electric motor 8 can be manually performed based on the operation of the steering tool 9 provided in the room. On the other hand, 10 is a rear wheel case with an electric motor 11 for the rear wheel 11a, and the rear wheel case 10 is provided at each of the left and right rear portions of the main frame 2, but the front and rear wheel electric motors 4,
The drive control and the brake control of 11 are performed by the steering tool 9. On the other hand, although not shown as a specification for persons with physical disabilities who can use both hands, necessary operating tools such as a forward / reverse switching lever and a brake lever are provided. The electric motor 11 for the rear wheel 11a is of a vertical type so as not to interfere with getting on and off the wheelchair, and its output shaft and the axle of the rear wheel 11a are interlockingly connected via a transmission means such as a bevel gear. ing.

Reference numeral 12 is a floor plate formed of a flat plate material, and the floor plate 12 is provided so as to be able to move up and down on the main frame 2 via left and right parallel link mechanisms 13. That is, the floor plate 12 is pivotally supported by the support shaft 15 at the rear ends of the left and right side edges of the link 14 which are substantially V-shaped, while the intermediate bent portions of each link 14 are supported. Axis 16
The parallel link mechanism 13 is configured by being pivotally supported by the main frame 2 via. Furthermore, front and rear members of the link 14 are connected to each other via a reinforcing rod 17. Reference numeral 18 is an electric actuator, and the actuators 18 are interposed between the main frame 2 and the rear link 14, respectively.
With the expansion and contraction operation of 8, floor 12 is made to be able to lift displacement between the Noborii <br/> location and ground plane positioned on higher ground surface. Then, the wheelchair 19 in the state of being placed on the ground surface
It is set so that the passenger can get on and off the floor board 12 from the rear. Switches 20 and 21 for driving the electric actuator 18 are provided at the driver's seat and the rear portion of the vehicle body 1, respectively. Reference numeral 17a is a pin shaft for pivotally supporting the reinforcing rod 17.

In the figure, reference numeral 22 is a rear wheel stopper for restricting the backward movement of the wheelchair 19. The rear wheel stopper 22 is
It is integrally fixed to a rear end portion of a locking bracket 24 pivotally supported by a rear portion of the floor plate 12 via a shaft 23. Then, the front end of the locking bracket 24 interferes with the operating pin 25 provided on the vehicle body side at the same time as the floor plate 12 is moved up to the raised position, so that the shaft 23 is moved up and down in a front-rear-rear-high manner. Then, it is set to exhibit a stopper function. On the other hand, in front of the floor plate 12, a front wheel stopper 27 whose front / rear position can be adjusted according to the size of the wheelchair is provided. Further, 26 is a battery.

In the embodiment of the present invention configured as described above, the vehicle body 1 with the handicapped person sitting on the wheelchair 19 is provided.
In order to get on the vehicle, first, the rear switch 20 may be operated to lower the floor plate 12 to the ground position.
You can get on the wheelchair 19 from the rear. Then, when you get in, operate the switch 21 on the driver's side to operate the floorboard 1
It suffices to raise 2 to the raised position so that the vehicle body 1 can drive and move. Since the vehicle body 1 is a system in which each of the four wheels is driven, even if there are some irregularities, it is possible to move over these. When the vehicle reaches the destination, the driver's seat side switch 21 is operated to lower the floor board 12, and then the wheelchair 19 is moved backward to get out of the vehicle.

As described above, in the embodiment of the present invention, a person with a physical disability can easily get in and out of the wheelchair 19 while sitting on the wheelchair 19 because he / she has no step and can move the vehicle without assistance. it can. Since the floor plate 12 is moved up and down in parallel using the parallel link mechanism 13, the vertical movement can be minimized, which is highly stable and has an optimal structure for people with disabilities to get on and off. ,
Further, since it is possible to drive in a wheelchair, there is no need to care for others, which greatly contributes to the independence of disabled people.

In addition, in this case, since the wheelchair 19 is prevented from inadvertently retreating by the stopper 22 in the ascended position lifted from the ground, it is possible to safely climb over slopes and steps, and because of the roof, it is possible to weather. It became possible for people with disabilities to expand their range of action without being affected by the situation.

In addition, in this structure, the motor 11 for driving the rear wheels 11a is of a vertically installed type which is long in the front-rear direction, and accordingly, the vehicle width becomes narrow and compact, and the running and maneuverability is improved. Can contribute to the improvement of
Moreover, because it is small and simple, the parking space can be made small and the space for getting on and off can be made small. By the way, it is generally preferable not to need a driver's license for the maximum running speed, but since the vehicle body itself has wheels for front and rear, it is possible to make it excellent in running stability. Although the maximum speed can be appropriately set in consideration of the ability, the degree of obstacle, etc., it is generally preferable to set the maximum speed to about twice the running speed of the electric wheelchair. Further, the operating tool can also be appropriately changed depending on the degree of disability of the handicapped person. For example, if a joystick lever that can be operated forward, backward, leftward, and rightward is used, even a person with one handed hand can drive.

[0012]

The present invention can also be applied to the second embodiment shown in FIGS. 4, 5 and 6. That is, this is configured such that the front wheel 28 of the wheelchair 19 is lifted up while the wheelchair rear wheel 29 is used as it is as the rear wheel of the vehicle body 1. In this case, since the vehicle body 1 has only the front wheels, the stand 30 is required. The stand 30 is set so as to be tilted by the forward and reverse drive of the electric actuator (electric cylinder) 31 for the stand. . That is, the base end of the electric actuator 31 is attached to the front part of the vehicle body, and the tip end of the cylinder rod 32 is a long operating rod 34 in the left-right direction supported by the rear end of a bracket 33 whose front end is pivotally connected to the lower front part of the vehicle body. The stand 30 is extended rearward from both ends of the operating rod 34. The stand 30 is set to move up and down by the expansion and contraction of the actuator 31. Further, the operating rod 34 is provided with a locking hook 36 to which a locking pin 35 provided on the left and right of the front part of the wheelchair 19 is detachably engaged from below, and the stand 3
When 0 is the vehicle body supporting posture, the locking hook 36 is located below the locking pin 35, and the wheelchair 19 is free from the vehicle body 1. And electric actuator 31 for stand
Is linked to driving the stand 30 in the direction of lifting, and the locking hook 36 engages with the locking pin 35 and the wheelchair front wheel 28 is lifted (the actuator 31 is set by a sensor not shown). It is designed to stop at a preset lifting position). In this embodiment, the stopper 37 that closes the opening of the locking hook 36 is provided in order to prevent the locking pin 35 that has reached the lifting position from accidentally coming off the locking hook 36.
Are provided on the vehicle body front panel 38. A switch 39 for driving the actuator 31 to move the stand 30 up and down is provided on the front panel 38. Further, the support arm 40 provided in the rear portion of the wheelchair 19 so as to project in the left-right direction is projected, while the vehicle body 1
A support groove 41 is formed in the rear opening so that the support arm 40 can be fitted in and out from the rear side when the wheelchair 19 gets into the vehicle body 1. By moving the stand 30 upward, the rear weight of the vehicle body 1 can be supported by the rear wheel 29 of the wheelchair. Incidentally, in the present embodiment, the base end of the turning actuator 42 is supported by the main frame 43 provided at the bottom of the vehicle body 1.

Also in the second embodiment,
There is an advantage that the wheelchair 19 can be directly loaded into the vehicle body 1. In particular, in this case, the rear wheel 29 of the wheelchair can be used also as the rear wheel of the vehicle body 1, so that there is an advantage that the structure of the vehicle body 1 can be simplified and the cost can be reduced. Incidentally, in the second embodiment, the front wheel side of the wheelchair is configured to be locked and supported, but the present invention is not limited to this, and it is configured to be locked and supported by a holding part that holds the rear part of the wheelchair. However, of course, it is more reliable if it is configured to be locked on both front and rear sides.

[Brief description of drawings]

FIG. 1 is a side view of a simple vehicle.

FIG. 2 is a plan view of a simple vehicle.

FIG. 3A is a perspective view of a main part of the stopper, and FIG.

FIG. 4 is a side view of the second embodiment when a simple vehicle is boarded.

FIG. 5 is a side view of the second embodiment during traveling of the simple vehicle.

FIG. 6 is a plan view of a simple vehicle according to a second embodiment.

[Explanation of symbols]

1 car body 2 main frame 3 Support frame 4 Electric motor for front wheels 4a front wheel 5 front wheel case 6 spindles 7 steering link 8 Electric motor for steering 9 steering gear 10 rear wheel case 11 Rear wheel electric motor 11a rear wheel 12 floor boards 13 Parallel link mechanism 14 links 15 spindles 16 spindles 17 Reinforcing rod 18 Electric actuator 19 wheelchairs 20 rear switch 21 Driver's side switch 22 Rear wheel stopper 23 axes 24 Locking part 25 working pin 26 Battery 27 Front wheel stopper 28 Wheelchair front wheel 29 Wheelchair rear wheel 30 stand 31 Stand Electric Actuator 32 cylinder rod 33 bracket 34 Actuating rod 35 Locking pin 36 Locking hook 37 Stopper 38 front panel 39 switch 40 support arm 41 Support groove 42 Swiveling actuator 43 Main frame

Claims (3)

(57) [Claims] 1. When constructing a wheelchair into which a self-propelled simple vehicle capable of driving can be loaded so that a person sitting on the wheelchair can drive the vehicle, the rear side of the simple vehicle is opened.
A substantially frame-shaped main frame in which the entrance / exit is formed,
A floor plate that can be lifted up and down in the U-shaped part of the main frame,
Structure provided with a parallel link mechanism for raising and lowering the floor plate
The parallel link mechanism includes an electric actuator.
Between the left and right edges of the floorboard and the left and right legs of the main frame
They are installed in between, and the floor board
In front of the ground level position where you can descend and descend and above the ground level
It can be moved up and down in parallel with the ascending position where it can be operated.
A simple vehicle for a wheelchair characterized by being configured so that it can be operated . 2. The electric actuator according to claim 1.
The switch for driving the
Provided on the rear of the vehicle body where the exit is formed
A simple vehicle for wheelchairs characterized by the above . 3. A self-propelled simple vehicle that can be operated by driving a wheelchair is configured such that the wheelchair can be loaded with front wheel lifting means for lifting a front wheel of a wheelchair that is in the vehicle, and a wheelchair rear wheel. A simple vehicle for a wheelchair, comprising a rear part holding means for holding the rear part of the wheelchair so as to be a rear wheel, and a vehicle locking means for locking the wheelchair to the vehicle.