JP7184330B2 - Wheelchair in-vehicle device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair on-vehicle device capable of carrying a wheelchair used by a physically handicapped person by mounting it on a vehicle.

When a physically handicapped person moves in a vehicle, if there is an attendant, the attendant can load the wheelchair into the vehicle. However, when a physically handicapped person travels by vehicle alone as a driver, it is difficult to load the wheelchair into the vehicle.
For such a case, or for facilitating storage of the wheelchair in the vehicle, a wheelchair mounting device for mounting the wheelchair in the vehicle has been developed (see, for example, Patent Document 1).
For example, in a wheelchair storage crane for a vehicle for disabled persons described in Patent Document 1, a track is provided on the rear floor of the vehicle from a wheelchair storage opening to a storage position, and a lift arm traveling on the track allows the wheelchair loading section to move up and down. The wheelchair mounting part has right and left wheel lanes for guiding the wheels of the wheelchair, and the wheel lanes are provided so as to be able to move in parallel in the width direction of the wheelchair, so that the wheelchair is automatically folded and stored behind the driver's seat. At the same time, the wheelchair stored in a folded state behind the driver's seat is automatically carried out of the vehicle to reduce the burden on the physically handicapped person when getting in and out of the vehicle.

JP-A-11-278142

However, in the wheelchair storage crane described in Patent Document 1, the arm for lifting the wheel lane is lower than the floor surface where the vehicle is stored, faces obliquely downward, and extends long on the ground on which the wheelchair is placed. The wheel lane pulls the wheelchair into the elevated floor of the vehicle.

Therefore, in the wheelchair storage crane described in Patent Document 1, the arm has a wide rotation range and the tip of the arm, on which the weight of the wheelchair is applied, is moved from a low position to a high position. Therefore, a motor with a high output is required as a driving source for driving the arm.
In particular, an electric wheelchair has a battery, a motor, a drive gear, etc., and is heavier than a manual wheelchair.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a wheelchair on-board device that allows even a heavy wheelchair to be stored in the vehicle.

The wheelchair vehicle-mounted device of the present invention comprises an arm portion having a head portion for holding a wheelchair formed at the tip thereof, and the arm portion being positioned between a standing position and a forward lying position centering on the lower portion of the arm portion. a rail portion for sliding the arm portion between an opening of the vehicle and a storage position; and a second driving portion for sliding the arm portion on the rail portion. and wherein the head portion holds an armrest portion of the wheelchair.

According to the wheelchair in-vehicle device of the present invention, the arm portion in the lying down state holds and lifts the armrest portion of the wheelchair by the head portion, and the arm portion is placed in the upright state. Therefore, a long arm extending to the lower end of the wheel is not required as compared with the arm for lifting the wheel of the wheelchair. Therefore, even in a heavy wheelchair, the arm can be lifted up by the first driving section serving as a driving source.

The head portion may include a U-shaped head body and an armrest holding portion provided in the head body and having a groove in which the armrest portion is placed. By retracting the wheelchair from the front of the head body and positioning the wheelchair inside the head body, the armrest portion of the wheelchair is inserted into the groove of the armrest holder. Therefore, the user who has moved to the driver's seat of the vehicle moves the electric wheelchair and holds it on the head portion, so that the user can store the wheelchair in the vehicle by himself.

The rail portion is provided with a wheel stop portion that abuts on the lower portion of the wheel of the wheelchair when the wheelchair is positioned at the retracted position, and a third driving portion that raises the wheel stop portion from below the wheel. A bollard may be provided. Even if the wheelchair vibrates when the vehicle travels with the wheelchair positioned at the retracted position, the wheel stop restrains the movement of the wheels, thereby preventing the wheelchair from coming off the head part.

According to the wheelchair in-vehicle device of the present invention, since a long arm extending to the lower end of the wheel is not required, even a heavy wheelchair can be lifted up by the first drive unit serving as a drive source and stored in the vehicle. can do.

It is the perspective view which looked at the wheelchair vehicle-mounted apparatus which concerns on embodiment of this invention from the diagonally right front. It is the perspective view which looked at the wheelchair vehicle-mounted apparatus shown in FIG. 1 from the diagonally rear left. FIG. 2 is a partially enlarged perspective view of the wheelchair vehicle-mounted device shown in FIG. 1 ; FIG. 2 is a partially enlarged perspective view of the wheelchair vehicle-mounted device shown in FIG. 1 as viewed obliquely from the rear right. 1. It is a figure for demonstrating operation|movement of the wheelchair vehicle-mounted apparatus shown in FIG. 1, and is a left view of the state which inserts a wheelchair in the head part of the arm part of a lying down state. FIG. 6 is a diagram for explaining the operation of the wheelchair vehicle-mounted device following FIG. 5 , and is a left side view of the state of the arm portion that has changed from the lying state to the standing state. FIG. 7 is a diagram for explaining the operation of the wheelchair vehicle-mounted device following FIG. 6 , and is a left side view showing a state in which the arm is in the standing position and the rail is retracted to the retracted position.

A wheelchair-mounted apparatus according to an embodiment of the present invention will be described with reference to the drawings.
In this specification, the direction of the wheelchair facing the wheelchair from the wheelchair on-board device is referred to as the front, the opposite side is referred to as the rear, and the horizontal direction orthogonal to the front-rear direction is referred to as the left-right direction or width direction.

1 and 2 includes an arm portion 20, a first drive portion 30, a rail portion 40, a second drive portion 50 (see FIG. 3), and a wheel stop 60. As shown in FIGS.

The arm portion 20 includes a head portion 21 that is formed at the tip portion and holds the wheelchair, and an arm body 22 that moves the head portion 21 up and down.
The head portion 21 includes a head body 211 formed in a U-shape by shoulder portions 211a extending in the left-right direction and arm portions 211b extending forward from both ends of the shoulder portions 211a; and an armrest holding portion 213 provided in the head body 211 and formed with a groove in which the armrest portion is placed.

A pair of tip portions (tip portions of the arm portions 211b) of the head main body 211 are formed in a tapered shape so that the width of the opening is widened.
The connecting portion 212 is provided in the central portion of the shoulder portion 211 a of the head body 211 .
The armrest holding portion 213 is formed by bending the plate material into a U-shape or a V-shape with the center of the plate material in the width direction as the groove bottom. The armrest holding portion 213 is fixed to the inner wall surface of the arm portion 211b.

The arm body 22 includes a first arm member 221 as a main shaft, a second arm member 222 as a sub shaft, and a movable portion 223 mounted on the rail portion 40 .
The first arm member 221 and the second arm member 222 are connected at their distal ends to the connecting portion 212 and at their base ends to the movable portion 223 .
The distal end of the first arm member 221 is connected to the upper portion of the connecting portion 212, the distal end portion of the second arm member 222 is connected to the lower portion of the connecting portion 212, and the proximal end portion of the first arm member 221 is connected to the second arm member. It rotates at a position higher than the proximal end of 222 . By doing so, the head portion 21 can be held horizontally, and the tip of the arm portion 211b can be maintained facing forward.

The first driving section 30 has a function of rotating the arm section 20 around the lower portion of the arm section 20 between a standing state and a forward lying state.
In the present embodiment, the base end of the first driving portion 30 is connected to the movable portion 223, and the distal end thereof is connected to the distal end of the first arm member 221. By expanding and contracting the first driving portion 30, the arm main body 22 can be placed in the standing position. It is an electric actuator 31 that shifts from the state to the lying state or from the lying state to the standing state.

The rail portion 40 includes a rail body 41 composed of a pair of rail members 41a on which the arm portion 20 slides, a width member 42 arranged at a predetermined interval between the pair of rail members 41a, and one rail member 41a. and a side plate 43 arranged along the

As shown in FIGS. 3 and 4, the second drive unit 50 includes a motor 51 serving as a drive source, a gear unit 52 coaxially connected to the rotating shaft of the motor 51 passing through the movable unit 223, and the gear unit 52. A rack 53 attached to the side plate 43 is provided as a pinion.

The wheel stopper 60 has a wheel stopper 61 for restraining the movement of the wheel by coming into contact with the lower part of the wheel of the wheelchair when the wheelchair is in the retracted position, and the wheel stopper 61 can be raised from below the wheel. , and a third drive unit 62 for lowering the carriage.
The wheel stop part 61 is provided on the guide part 611 formed in a shape along the circular arc of the lower part of the wheel, and is provided on the guide part 611. and a support portion 61b having a distal end connected to the contact portion 61a and a base end connected to the third driving portion 62. As shown in FIG.

The third driving portion 62 is connected to an actuator 621 serving as a driving source, a connecting portion 622 to which the base end portion of the support portion 61b is connected, and a piston rod 621a of the actuator 621 and the connecting portion 622. The piston rod 621a is connected to A driving rod 623 is provided that rotates the connecting portion of the connecting portion 622 with the support portion 61b by moving in and out from the cylinder 621b, and raises and lowers the support portion 61b around the base end portion of the support portion 61b.

The wheelchair vehicle-mounted device 10 also includes an operation panel (not shown) for instructing start and stop.

The operation and use condition of the wheelchair-mounted device 10 according to the embodiment of the present invention configured as described above will be described with reference to the drawings.
In this embodiment, the wheelchair is an electric wheelchair, and the controller for operating the wheelchair can be separated from the wheelchair main body by a curled cord or the like. Also, the armrest portion is formed so that a rod-like body extends forward from the back position.
Further, the wheelchair vehicle-mounted device 10 is installed in the rear seat of a vehicle (not shown), and the opening through which the wheelchair is carried in or out is used as the rear door on the driver's seat side.

The user approaches the wheelchair in a wheelchair, opens the door of the driver's seat, opens the rear door, and transfers to the driver's seat. Then, the wheelchair vehicle-mounted device 10 is instructed to start from the operation panel.
As shown in FIGS. 1 and 2, in the wheelchair vehicle-mounted device 10, first, the motor 51 of the second drive unit 50 rotates forward, and the gear unit 52 shown in FIGS. 3 and 4 rotates forward on the rack 53. As a result, the arm portion 20 moves forward on the rail portion 40 .

When the arm portion 20 advances to a predetermined position on the front portion of the rail portion 40 and is positioned at the opening of the vehicle, when the piston rod of the actuator 31 of the first drive portion 30 enters the cylinder and contracts, the arm portion 20 changes from the upright state to the forward collapsed state, and the wheelchair vehicle-mounted device 10 stops.

When the arm portion 20 is in the collapsed state, the user operates the wheelchair to move the head portion 21 from the front to the rear, thereby positioning the wheelchair W between the pair of arm portions 211b as shown in FIG. Let Then, the armrest portion W1 of the wheelchair W is inserted into the groove of the armrest holder 213 and positioned.

When the user operates the control panel to start the retraction operation, the wheelchair vehicle-mounted device 10 moves the piston rod of the actuator 31 of the first drive unit 30 out of the cylinder and extends, as shown in FIG. , When the arm portion 20 changes from the lying state to the standing state, the wheelchair W is lifted by the arm portion 20. - 特許庁
Next, the motor 51 of the second driving section 50 rotates in reverse, and the gear section 52 shown in FIGS.

When the arm portion 20 moves to the retracted position at the rear end of the rail portion 40 and the wheels W2 of the wheelchair W are positioned above the bollard 60 as shown in FIG. 7, the actuator 621 of the third driving portion 62 operates. do.
When the piston rod 621a enters the cylinder 621b of the actuator 621 and the actuator 621 contracts, the base end of the driving rod 623 connected to the tip of the piston rod 621a is pulled, and the fulcrum of the driving rod 623 connected to the connecting portion 622 is pulled. The tip of the support portion 61b is raised by the rotation caused by the tip of the drive rod 623 rising about the position.
The contact part 61a contacts the lower part of the wheel W2 of the wheelchair W by raising the front-end|tip part of the support part 61b.

As described above, in the wheelchair vehicle-mounted device 10 according to the present embodiment, the armrest holding portion 213 of the arm portion 20 in the collapsed state holds and lifts the armrest portion W2 of the wheelchair W, and the arm portion 20 is in the upright state. . Therefore, a long arm extending to the lower end of the wheel is not required as compared with the arm for lifting the wheel of the wheelchair.
Therefore, the load on the arm portion 20 can be reduced, and even a heavy wheelchair can pull up the arm portion 20 by the first driving portion 30 as a driving source and store it in the vehicle.

As shown in FIG. 5, the head portion 21 includes a U-shaped head body 211 and an armrest holding portion 213 provided in the head body 211 and formed with a groove in which the armrest portion W1 is placed. It is assumed to be prepared. Therefore, by retracting the wheelchair W from the front of the head body 211 , the armrest portion W<b>1 of the wheelchair is inserted into the groove of the armrest holder 213 . Therefore, the user who has moved to the driver's seat of the vehicle moves the electric wheelchair W and holds it on the head part 21, so that the user can store the wheelchair in the vehicle by himself.

As shown in FIG. 7, the rail portion 40 includes a wheel stopper portion 61 that abuts on the lower portion of the wheel W2 of the wheelchair W when the wheelchair W is in the retracted position, and a wheel stopper portion 61 that is attached from below the wheel W2. A bollard 60 is provided with a third drive 62 for raising.
Therefore, even if the wheelchair W vibrates when the vehicle travels with the wheelchair W positioned at the retracted position, the wheel stop 60 restrains the movement of the wheels W2, so that the wheelchair W comes off the head part 21.例文帳に追加can be prevented.

In the present embodiment, the wheelchair-mounted device 10 is installed in the rear seat of the vehicle, and the opening for loading or unloading the wheelchair is the rear door on the driver's seat side. It may be installed in the room.
Moreover, since the length of the shoulder portion 211a of the head body 211 of the head portion 21 shown in FIG. 1 is fixed, the length of the shoulder portion 211a is determined according to the width of the wheelchair. can be made variable to accommodate various wheelchairs with different widths.

INDUSTRIAL APPLICABILITY The wheelchair vehicle-mounted device of the present invention is suitable for carrying a wheelchair used by a physically handicapped person in a vehicle.

REFERENCE SIGNS LIST 10 wheelchair vehicle-mounted device 20 arm 21 head 211 head body 211a shoulder 211b arm 212 connecting portion 213 armrest holding portion 22 arm body 221 arm member 222 second arm member 223 movable portion 30 first driving portion 31 actuator 40 rail portion 41 Rail main body 41a Rail member 42 Width member 43 Side plate 50 Second drive part 51 Motor 52 Gear part 53 Rack 60 Wheel stop 61 Wheel stop part 61a Contact part 611 Guide part 612 Protruding rod 61b Support part 62 Third drive part 621 Actuator 621a Piston rod 621b Linda 622 Connection part 623 Drive rod W Wheelchair W1 Armrest W2 Wheel

Claims (2)

an arm portion having a head portion for holding a wheelchair formed at the distal end portion;
a first drive unit that drives the arm to rotate about a lower portion of the arm between a standing state and a forward lying state;
a rail portion for sliding the arm portion between a vehicle opening and a retracted position;
a second drive section for sliding the arm section in a standing position on the rail section;
The head portion includes a head body formed in a U shape, and an armrest holding portion provided in the head body and formed with a groove in which the armrest portion is placed in order to hold the armrest portion of the wheelchair. and
The head body includes shoulders extending in the left-right direction and arms extending forward from both ends of the shoulders,
The wheelchair-mounted device, wherein the arm holds the head horizontally and keeps the tip of the arm facing forward . The rail portion includes a wheel stop portion that abuts on the lower portion of the wheel of the wheelchair when the wheelchair is in the retracted position, and a third driving portion that raises the wheel stop portion from below the wheel. 2. The wheelchair vehicle-mounted device according to claim 1, further comprising a wheel stop.

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