JP5082640B2 - Removable wheelchair seat - Google Patents

Description

  The present invention is a configuration in which the seat moving mechanism is moved between the outside of the passenger compartment and the passenger compartment by being placed on the seat base of the seat moving mechanism provided in the vehicle. The present invention relates to a detachable wheelchair seat that is used and can be used as a wheelchair by being separated from a seat base of the seat moving mechanism outside a passenger compartment.

A technique relating to the above-described removable wheelchair seat is disclosed in Patent Document 1.
As shown in FIG. 11, this detachable wheelchair seat includes a seat frame 103 that supports a seat cushion 102, and a motor-driven lifting mechanism 110 for lifting the footrest 105 is attached to the seat frame 103. ing.
When the detachable wheelchair seat is placed on the seat base of the seat moving mechanism (not shown) and used as a seat in the passenger compartment, the footrest 105 is not lifted by the lifting mechanism 110 and does not interfere with the floor surface in the passenger compartment. It is raised to the proper height position (upper limit position).
When the detachable wheelchair seat is separated from the seat base of the seat moving mechanism (not shown) and used as a wheelchair outside the passenger compartment, the footrest 105 is moved to the appropriate height position (lower limit position) for the wheelchair by the lifting mechanism 110. ).

JP 2007-68834 A

  However, since the above-described detachable wheelchair seat is configured to raise and lower the footrest 105 with the motor-driven lifting mechanism 110, a single drive source is required for raising and lowering the footrest 105, which increases costs. Further, when the removable wheelchair seat is moved into the passenger compartment by the seat moving mechanism, the footrest 105 must be at the upper limit position so as not to interfere with the floor of the passenger compartment. For this reason, a means for detecting that the footrest 105 is in the upper limit position is required, which increases the cost.

  The present invention has been made to solve the above problems, and the problem to be solved by the present invention is that the power source for raising and lowering the footrest of the removable wheelchair seat and the footrest are in the upper limit position. It is an object of the present invention to eliminate the need for detecting the cost and to reduce the cost.

The above-described problems are solved by the inventions of the claims.
The invention according to claim 1 is configured to be moved between the outside of the passenger compartment and the passenger compartment by the seat moving mechanism while being placed on the seat base of the seat moving mechanism provided in the vehicle. Is a detachable wheelchair seat that is used as a seat and can be used as a wheelchair by being separated from the seat base of the seat moving mechanism outside the passenger compartment, and a seat frame that supports the seat cushion, and a seated person puts his / her foot on The footrest, the height position for the wheelchair that is the height position of the footrest with respect to the seat frame when used as the wheelchair outside the vehicle compartment, and the footrest for the seat frame when used as the seat in the vehicle interior a height position of the foot between a height position for greater sheet than the wheelchair height Strike to allow lifting by a connecting mechanism for connecting the footrest to the seat frame, the seat for the base of the seat movement mechanism enters the lower side of the seat frame, increases at this position A part of the coupling mechanism is pushed up by the seat base, and the footrest is raised from the wheelchair height position to the seat height position. In this state, the seat frame is moved to the seat base. When the seat base is lowered with respect to the seat frame and is separated from the seat frame, the footrest is lowered from the seat height position to the wheelchair height position by its own weight. It is the structure which carries out.

According to the present invention, the seat base of the seat moving mechanism enters the lower side of the seat frame, rises at this position, and the seat frame is placed on the seat base. At this time, a part of the coupling mechanism receives the pushing force of the seat base and raises the footrest to the seat height position .
Further, when the seat base is lowered with respect to the seat frame and is separated from the seat frame, the footrest is lowered to the wheelchair height position by its own weight.
This eliminates the need for a single drive source for raising and lowering the footrest.
In addition, when the seat frame is placed on the seat base, the footrest is also raised to the seat height position . For this reason, it is not necessary to provide a means for detecting that the footrest is at the seat height position .

According to the invention of claim 2, the coupling mechanism includes a pair of left and right four-bar linkage mechanisms including an upper link and a lower link, and the upper link is provided with a receiving portion that receives the pushing force of the seat base. It is characterized by that.
Thus, since the four-bar linkage mechanism is used, the footrest can be raised and lowered in a parallel state.
According to the invention of claim 3, the connecting mechanism includes a guide member on the seat frame side, a movable member fixed to the footrest side and movable up and down along the guide member, the movable member and the seat frame. A link to be connected, and the link is provided with a receiving portion for receiving the pushing-up force of the seat base.
As described above, the structure including the guide member and the movable member that moves up and down along the guide member can reduce the rattling of the coupling mechanism.
According to the invention of claim 4, the coupling mechanism includes a guide member on the seat frame side,
A movable member fixed to the footrest side and movable up and down along the guide member, and a receiving portion for receiving the push-up force of the seat base is provided on the movable member. To do.

  According to the present invention, a single power source for raising and lowering the footrest is not required, and further, a means for detecting that the footrest is at the upper limit position is not required, so that the cost can be reduced.

Hereinafter, based on FIGS. 1-10, the removable wheelchair seat which concerns on embodiment of this invention is demonstrated. Here, FIG. 1 to FIG. 3 are enlarged perspective views showing a footrest of the removable wheelchair seat, a coupling mechanism, and the like, and FIG. 4 is an overall perspective view of the removable wheelchair seat. 5 is a perspective view showing a seat base of the seat moving mechanism, FIG. 6 is a schematic overall side view of the seat moving mechanism viewed from the rear of the vehicle, and FIG. 7 is a schematic diagram of a vehicle including the seat moving mechanism and a detachable wheelchair seat. It is a top view. Furthermore, FIGS. 8-10 is a schematic side view showing the footrest of the detachable wheelchair seat which concerns on the example of a change, and a connection mechanism.
In addition, front and rear, left and right and up and down in FIGS.
As shown in FIG. 7, the detachable wheelchair seat 10 is placed on the seat base 56 b of the seat moving mechanism 50 provided in the vehicle M, and the seat moving mechanism 50 moves the vehicle outside and inside the vehicle interior. It is used as a seat in the passenger compartment. Further, outside the passenger compartment, the seat moving mechanism 50 can be used as a wheelchair by being separated from the seat base 56b.

<About the sheet moving mechanism 50>
Before describing the detachable wheelchair seat 10, first, the configuration of the seat moving mechanism 50 will be briefly described.
As shown in FIG. 6, the seat moving mechanism 50 includes a front / rear slide mechanism 52, a rotation mechanism 53, a first slide mechanism 54, a four-bar linkage mechanism 55, a guide mechanism 58, and a second slide mechanism 56. I have.
The front / rear slide mechanism 52 is a mechanism for moving the removable wheelchair seat 10 in the vehicle front-rear direction in the vehicle interior, and includes a front / rear slide base 52b.
The rotation mechanism 53 is installed on the front / rear slide base 52b and rotates the detachable wheelchair seat 10 by about 90 ° between a position facing the front of the vehicle and a position facing the door opening side when viewed from the seated person. And includes a rotation base 53b.
The first slide mechanism 54 is configured such that the first slide base 54b installed on the rotation base 53b can be moved forward (moved left in FIG. 6) or moved backward (moved right in FIG. 6).
The four-bar linkage mechanism 55 has a base end portion connected to the first slide base 54b so as to be vertically rotatable, and a distal end portion similarly connected to the lift base 55f so as to be vertically rotatable.
When the four-joint link mechanism 55 advances and retreats on the rotation base 53b together with the first slide base 54b, the guide mechanism 58 moves so that the lift base 55f at the tip descends and rises as the four-joint link mechanism 55 advances and retreats. The four-bar linkage mechanism 55 is guided at the tip position of the rotation base 53b.
The 2nd slide mechanism 56 is installed in the raising / lowering base 55f, and supports the base 56b for mounting | wearing the detachable wheelchair seat 10 so that advance / retreat is possible with respect to the raising / lowering base 55f.

When the detachable wheelchair seat 10 is moved from the indoor position to the outdoor position by the seat moving mechanism 50, first, the rotation base 53b is moved from the seating position facing the front of the vehicle by the rotation mechanism 53 at a predetermined position in the front-rear direction of the vehicle interior. Rotate to the sideways position facing side. Next, the removable wheelchair seat 10 is advanced in the outdoor direction with respect to the lifting base 55 f of the four-bar linkage mechanism 55 by the second slide mechanism 56. Next, the removable wheelchair seat 10 is lowered while being advanced together with the first slide base 54 b and the four-bar linkage mechanism 55 by the first slide mechanism 54. Thereby, the detachable wheelchair seat 10 is moved to the outdoor boarding / exiting position (see FIG. 6). At this time, the detachable wheelchair seat 10 deploys the front wheel 12 and the rear wheel 14 while descending as will be described later. Then, after the front wheel 12 and the rear wheel 14 of the detachable wheelchair seat 10 are grounded, the seat base 56b of the seat moving mechanism 50 is further lowered to release the connection between the detachable wheelchair seat 10 and the seat base 56b. Is done. Thereby, the detachable wheelchair seat 10 can be used as a wheelchair.
When the detachable wheelchair seat 10 used as a wheelchair is moved to the indoor position, the detachable wheelchair seat 10 is first moved backward with respect to the seat base 56b of the seat moving mechanism 50 located at the outdoor position. The base 56b is advanced to a predetermined position below the detachable wheelchair seat 10. Next, the seat base 56b is raised by the seat moving mechanism 50, and the removable wheelchair seat 10 is placed on the seat base 56b. Thereafter, the seat moving mechanism 50 operates in the reverse order to the above, and the removable wheelchair seat 10 moves to the indoor position.

<About the outline of the removable wheelchair seat 10>
As shown in FIG. 4, the detachable wheelchair seat 10 includes a seat cushion 11c, a seat back 11b, and a seat frame 20 that supports them. In FIG. 6, the seat frame 20 of the removable wheelchair seat 10 is omitted.
The seat frame 20 is formed in a gate shape in a front view by a square plate-like seat frame main body 21 on which the seat back 11b is placed and a pair of left and right side plates 22 connected to both left and right edges of the seat frame main body 21. Is formed. A wheel support mechanism 23 is attached to the lower part of the pair of left and right side plates 22. The wheel support mechanism 23 is a mechanism that supports the front wheel 12 and the rear wheel 14 so that the front wheel 12 and the rear wheel 14 can be deployed or retracted. When the detachable wheelchair seat 10 is used as a wheelchair, as shown in FIG. The rear wheel 14 is deployed. Further, when the removable wheelchair seat 10 is placed on the seat base 56b of the seat moving mechanism 50 and moved to the indoor position, the front wheel 12 and the rear wheel 14 are stored upward.
At the front part of the seat frame 20, as shown in FIGS. 2A and 2B, the left and right side plates 22 protrude forward by a certain dimension with respect to the seat frame main body 21, and the front ends of these side plates 22 are connected. They are connected by a vertical plate 24. A pair of left and right footrests 30 on which a seated person puts his / her foot is provided on the front side of the connection vertical plate 24, and a connection mechanism 40 for connecting the footrest 30 to the seat frame 20 in a state where the footrest 30 can be raised and lowered.

<About the coupling mechanism 40>
As shown in FIG. 2B and the like, the coupling mechanism 40 is arranged in parallel with the coupling vertical plate 24 of the seat frame 20, and can move up and down along the coupling vertical plate 24. The plate 44 includes a pair of left and right four-bar linkage mechanisms 46 that connect the left and right side plates 22 of the seat frame 20.
On both the left and right sides of the movable plate 44, a band plate portion 45 protruding downward is provided, and a pin support portion 45p to which the base end portion of the connection pin 41 is connected is provided on the front surface of the lower end portion of the band plate portion 45. It has been. The pin support portion 45p can turn the connecting pin 41 up and down approximately 90 ° between an upright position parallel to the strip plate portion 45 and a forward lying position substantially perpendicular to the strip plate portion 45. It is configured.
As shown in FIGS. 2A and 2B, the foot reel 30 is connected to the connecting pin 41 of the movable plate 44 so as to be rotatable around the axis.
As shown in FIG. 2A and the like, the footrest 30 is arranged so that the shaft center extends in the front-rear direction at the position of the substantially rectangular flat plate portion 33 on which the foot is placed and the width direction outer edge of the flat plate portion 33. Bearing part 35. The connecting pin 41 of the movable plate 44 is inserted into the bearing portion 35 of the footrest 30 in a state in which relative movement is impossible in the axial direction. Here, as shown in FIG. 2A and the like, the footrest 30 has a part of the flat plate portion 33 (rotation stopper) located near the bearing portion 35 in a state where the flat plate portion 33 is in a horizontal position. The plate 44 is in contact with the pin support portion 45p of the plate 44. As a result, the footrest 30 is allowed to rotate upward from the horizontal position shown in FIG. 2, but is not allowed to rotate downward.

The movable plate 44 of the coupling mechanism 40 is bent at both ends in the width direction by about 90 °, thereby forming end bent pieces 44e that project rearward. Further, an upper projecting piece 44u is formed on the upper back side of the movable plate 44 so as to project rearward and upward at a position on the inner side in the width direction of the end bending piece 44e. Here, the end bending piece 44e of the movable plate 44 is located outside the left and right side plates 22 of the seat frame 20, as shown in FIGS. For this reason, even if the movable plate 44 moves up and down, the bent end portion 44e of the movable plate 44 does not interfere with the seat frame 20.
Further, as shown in FIGS. 2B and 3, the connecting vertical plate 24 of the seat frame 20 has a U-shaped notch that opens upward at a position corresponding to the upper protruding piece 44 u of the movable plate 44. 24s is formed in the vertical direction. As a result, as the movable plate 44 moves up and down, the upper protruding piece 44u of the movable plate 44 moves inside the notch 24s of the connecting vertical plate 24, and the upper protruding piece 44u of the movable plate 44 and The connection vertical plate 24 of the seat frame 20 does not interfere.

Further, the lower end of the notch 24s formed in the connecting vertical plate 24 of the seat frame 20 receives the lower end of the upper protruding piece 44u when the movable plate 44 is lowered to the lower limit position as shown in FIG. An elastic body 24d is fitted. Note that FIG. 3 shows a view taken along arrows III-III in FIG.
Further, as shown in FIGS. 1 and 2, etc., the left and right side plates 22 of the seat frame 20 are provided with an upper limit stopper 22z on the upper front side, and the elastic body 22d of the upper limit stopper 22z is raised to the upper limit position. The upper end of the upper projecting piece 44u is configured to contact.
That is, the movable plate 44 has the upper protruding piece 44u from the lower limit position (see FIGS. 1B and 3) where the upper protruding piece 44u contacts the elastic body 24d of the notch 24s of the connecting vertical plate 24. It is possible to move up and down between the upper limit positions (see FIG. 1A) that contact the elastic body 22d.

At the upper end of the upper protruding piece 44u of the movable plate 44, as shown in FIGS. 1A and 1B, one end (front end) of the upper link 46u constituting the four-bar linkage mechanism 46 can be vertically rotated. It is connected in the state. The base end portion (rear end portion) of the upper link 46u is connected to the inner wall surface of the side plate 22 of the seat frame 20 so as to be vertically rotatable. That is, the upper link 46u of the left and right four-bar linkage mechanism 46 is disposed inside the side plate 22 of the seat frame 20. When the movable plate 44 moves up and down, the upper link 46u is centered on the connection point C of the base end portion. Rotate up and down.
In addition, one end (front end) of the lower link 46d constituting the four-bar linkage mechanism 46 is connected to the lower end of the end bent piece 44e of the movable plate 44 so as to be vertically rotatable. The base end portion (rear end portion) of the lower link 46d is connected to the outer wall surface of the side plate 22 of the seat frame 20 in a state in which the lower link 46d can turn up and down.
That is, the lower link 46d of the left and right four-bar linkage mechanism 46 is disposed outside the side plate 22 of the seat frame 20, and when the movable plate 44 moves up and down, the lower link 46d is connected to the connecting point D of the base end portion. It turns up and down around the center.

When the detachable wheelchair seat 10 is placed on the seat base 56b of the seat moving mechanism 50, the upper link 46u of the four-bar linkage mechanism 46 is pushed up by the top end surface U (see FIG. 5) of the seat base 56b. It is configured to be. That is, as shown in FIG. 1A and the like, the upper link 46u is formed in an inverted “h” shape in accordance with the concavo-convex shape of the top end surface U of the sheet base 56b. A pressure receiving roller 48 with which the upper surface U of the front end of the sheet base 56b abuts from below is rotatably attached to a lower bent portion provided substantially at the center in the longitudinal direction of the upper link 46u. That is, the pressure receiving roller 48 corresponds to the receiving portion of the present invention.
Therefore, when the seat base 56b of the seat moving mechanism 50 that has entered the detachable wheelchair seat 10 (the seat frame 20) reaches a predetermined position on the lower side, the top end surface U of the seat base 56b moves the pressure receiving roller 48 of the upper link 46u. Push up. As a result, the upper link 46u rotates upward about the connection point C of the base end, and the movable plate 44 and the footrest 30 connected to the tip of the upper link 46u rise. Further, the lower link 46d connected to the movable plate 44 rotates upward about the connection point D of the base end. At this time, the movable plate 44 and the footrest 30 are lifted in parallel by the action of the four-bar linkage mechanism 46 (the upper link 46u and the lower link 46d).

As shown in FIG. 1A, the upper surface of the seat base 56b comes into contact with the rear surface (lower surface) of the seat frame main body 21 of the seat frame 20, and the removable wheelchair seat 10 is placed on the seat base 56b. When placed, the upward rotation of the upper link 46u and the like stops. That is, in this state, the upper protruding piece 44u of the movable plate 44 contacts the elastic body 22d of the upper limit stopper 22z, and the movable plate 44 and the footrest 30 are held at the upper limit position. In a state in which the footrest 30 is raised to the upper limit position, even if the removable wheelchair seat 10 is moved into the vehicle interior by the seat moving mechanism 50, the footrest 30 does not interfere with the floor surface in the vehicle interior. Thus, the upper limit position of the footrest 30 corresponds to the seat height position of the present invention.
Further, when the detachable wheelchair seat 10 is used as a wheelchair outside the passenger compartment, when the seat base 56b of the seat moving mechanism 50 is lowered with respect to the seat frame 20, the upper link 46u and the lower link 46d are connected by their own weights. It pivots downward about the point C and the connecting point D. Thereby, the movable plate 44 and the footrest 30 are lowered in parallel by the action of the four-bar linkage mechanism 46 (the upper link 46u and the lower link 46d). Then, when the upper protruding piece 44u of the movable plate 44 is in contact with the elastic body 24d attached to the notch 24s of the connecting vertical plate 24 of the seat frame 20, the upper link 46u and the lower link 46d are rotated downward. Stop. That is, the movable plate 44 and the footrest 30 are held at the lower limit position. Thus, the lower limit position of the footrest 30 corresponds to the height position for the wheelchair of the present invention.

<Advantages of the removable wheelchair seat 10 according to the present embodiment>
In the detachable wheelchair seat 10 according to the present embodiment, the seat base 56b of the seat moving mechanism 20 enters the lower side of the detachable wheelchair seat 10 (seat frame 20), and ascends at this position. The seat 10 (seat frame 20) is placed on the seat base 56b. At this time, the connecting mechanism 40 of the detachable wheelchair seat 10 receives the pushing force of the seat base 56b and raises the footrest 30 to the seat height position .
Further, when the seat base 56b is lowered with respect to the detachable wheelchair seat 10 (seat frame 20) and separated from the seat frame 20, the footrest 30 is lowered to the height position for the wheelchair by its own weight.
For this reason, a single drive source for raising and lowering the footrest 30 is not required.
Further, in a state where the detachable wheelchair seat 10 (seat frame 20) is placed on the seat base 56b, the footrest 30 is also raised to the upper limit position, that is, the seat height position . For this reason, it is not necessary to provide a means for detecting that the footrest 30 is at the upper limit position.
Further, since the coupling mechanism 40 uses a pair of left and right four-bar linkage mechanisms 46 including an upper link 46u and a lower link 46d, the footrest 30 can be lifted and lowered in a parallel state.

<Example of change>
Here, the present invention is not limited to the above-described embodiment, and can be modified without departing from the gist of the present invention. For example, in the present embodiment, an example in which the coupling mechanism 40 includes the movable plate 44 and the four-bar linkage mechanism 46 has been shown. However, as shown in FIG. 8A, the four-bar linkage mechanism 46 can be replaced with a vertical slide mechanism 47, a guide member 49, a link 46u, and the like.
That is, as shown in FIG. 8B, a slider 47 a of the vertical slide mechanism 47 is attached to the back surface of the movable plate 44 including the footrest 30. A rail 47b of the vertical slide mechanism 47 is attached to the surface of the guide member 49 provided on the seat frame 20 side. The slider 47a is fitted to the rail 47b of the vertical slide mechanism 47 so as to be slidable along the rail 47b. Thereby, the movable plate 44 including the footrest 30 can be moved up and down along the guide member 49 by the action of the vertical slide mechanism 47. That is, the movable plate 44 corresponds to the movable member of the present invention.
On the upper back side (rear side) of the movable plate 44, a long hole forming portion 44n that protrudes horizontally is provided, and a pin 46p provided at the tip of the link 46u is engaged with the long hole 44h of the long hole forming portion 44n. Match. And the base end part (connection point C) of the link 46u is connected with the inner wall surface of the side plate 22 of the seat frame 20 in the state which can be rotated up and down. Further, a pressure receiving roller 48 that receives the pushing-up force of the sheet base 56b of the sheet moving mechanism 50 is rotatably mounted at a substantially central position of the link 46u. Accordingly, when the detachable wheelchair seat 10 is placed on the seat base 56b, the seat base 56b can push up the movable plate 44 and the footrest 30 to the upper limit position via the link 46u. Further, when the seat base 56b is separated from the removable wheelchair seat 10, the movable plate 44 and the footrest 30 can be lowered to the lower limit position by their own weight.

Further, instead of the vertical slide mechanism 47 shown in FIG. 8A, a roller 44r that rolls along the guide member 49 may be provided on the back side of the movable plate 44 as shown in FIG.
Also, as shown in FIGS. 8A and 9, instead of providing the link 46u, as shown in FIG. 10, an arm 44a that protrudes horizontally is provided on the upper back side of the movable plate 44, and the arm 44a A configuration in which a rotatable pressure receiving roller 48 is provided at the protruding end is also possible.
That is, the arm 44a and the pressure receiving roller 48 correspond to the receiving portion of the present invention.

It is an enlarged side view (A figure, B figure) showing the footrest of a detachable wheelchair seat concerning one embodiment of the present invention, a connection mechanism, etc. It is an expansion perspective view (A figure, B figure) showing the footrest of a detachable wheelchair seat concerning one embodiment of the present invention, a connection mechanism, etc. It is the perspective view seen from the III-III arrow direction of FIG. 1 (B). It is a whole perspective view of a detachable wheelchair seat. It is a perspective view showing the base for sheets of a sheet moving mechanism. It is a model whole side view of a sheet moving mechanism seen from the vehicles back. It is a model top view of a vehicle provided with a seat moving mechanism and a detachable wheelchair seat. It is the model side view (A figure) showing the footrest of the detachable wheelchair seat which concerns on the example of a change, and a connection mechanism, and a schematic cross section (B figure) of an up-and-down slide mechanism. It is a model side view showing the footrest of the removable wheelchair seat concerning a modification, and a connection mechanism. It is a model side view showing the footrest of the removable wheelchair seat concerning a modification, and a connection mechanism. It is a side view showing the footrest etc. of the conventional detachable wheelchair seat.

Explanation of symbols

10 .. Detachable wheelchair seat 20 .... Seat frame 30 ... Footrest 40 ... Connection mechanism 44 ... Movable plate (movable member)
44a ... Arm (receiving part)
46 ··· Four-link mechanism 46u ··· Upper link 48 ··· Pressure receiving roller (receiving portion)
49... Guide member 50... Sheet moving mechanism 56 b.

Claims (4)

It is configured to be moved between the outside of the passenger compartment and the interior of the vehicle by the seat moving mechanism while being mounted on the seat base of the seat moving mechanism provided in the vehicle. A detachable wheelchair seat that can be used as a wheelchair by being separated from the seat base of the seat moving mechanism outdoors,
A seat frame that supports the seat cushion;
A footrest on which a seater puts his foot;
The height position of the wheelchair that is the height position of the footrest with respect to the seat frame when used as the wheelchair outside the vehicle compartment, and the height of the footrest with respect to the seat frame when used as the seat in the vehicle interior a position, wherein between the wheelchair height seat height position higher than the position footrest so that elevatable, and a coupling mechanism for coupling the footrest to the seat frame,
When the seat base of the seat moving mechanism enters the lower side of the seat frame and rises at this position, a part of the coupling mechanism is pushed up by the seat base, and the footrest is used for the wheelchair. Ascending from the height position to the seat height position, in this state, the seat frame is placed on the seat base,
When the seat base descends with respect to the seat frame and is separated from the seat frame, the footrest is configured to descend from the seat height position to the wheelchair height position by its own weight. Detachable wheelchair seat. The detachable wheelchair seat according to claim 1,
The connection mechanism includes a pair of left and right four-bar linkage mechanisms composed of an upper link and a lower link,
A detachable wheelchair seat, wherein the upper link is provided with a receiving portion for receiving a pushing force of the seat base. The detachable wheelchair seat according to claim 1,
The coupling mechanism includes a seat frame side guide member,
A movable member fixed to the footrest side and movable up and down along the guide member;
A link connecting the movable member and the seat frame;
The detachable wheelchair seat, wherein the link is provided with a receiving portion for receiving the pushing force of the seat base. The vehicle seat device according to claim 1,
The coupling mechanism includes a seat frame side guide member,
A movable member fixed to the footrest side and movable up and down along the guide member;
A detachable wheelchair seat, wherein the movable member is provided with a receiving portion for receiving a pushing force of the seat base.

Images