JP2021037102A - Wheelchair mounting auxiliary device in sharing vehicle - Google Patents

Abstract

To obtain a wheelchair mounting auxiliary device in a sharing vehicle for effectively using a space of a cabin.SOLUTION: A wheelchair mounting auxiliary device 10 includes: a backrest part 20 which is arranged in a cabin of a sharing vehicle and has a support surface 26 to face a back support of a wheelchair; and a chair part 30 which is arranged in the backrest part 20, can selectively obtain a storage posture without projecting from the support surface 26 and a projection posture by projecting from the support surface 26 in a side view from a vehicle width direction, and enables a crew member other than a crew member on a wheelchair to be seated in the projection posture.SELECTED DRAWING: Figure 2

Description

The present invention relates to a wheelchair-mounted auxiliary device in a shared vehicle.

A configuration in which the seat cushion of the rear seat is in a tip-up state and a space for a wheelchair is secured on the floor on the front side of the rear seat in the tip-up state has been conventionally known (for example, patent documents). 1 or Patent Document 2). The main wheels of the wheelchair are pressed against the seat cushions of the rear seats in the chip-up state, and the wheelchair is fixed to the vehicle body by a lashing belt. The occupant of the wheelchair is restrained by the occupant belt in that state.

JP-A-2017-148445 Japanese Unexamined Patent Publication No. 2018-90143

In a shared vehicle such as a bus on which a wheelchair can be mounted, a wheelchair backrest may be set as an auxiliary device when a wheelchair occupant rides in a wheelchair-dedicated space in a backward posture. However, the wheelchair backrest is exclusively for wheelchair occupants and is not used by occupants other than wheelchair occupants (for example, healthy persons). Therefore, if there is no wheelchair occupant, the wheelchair backrest has no existence value, and it cannot be said that the space in the passenger compartment is effectively utilized. As described above, there is still room for improvement in effectively utilizing the space in the passenger compartment in a shared vehicle that can be equipped with a wheelchair.

Therefore, an object of the present invention is to obtain a wheelchair-mounted auxiliary device in a shared vehicle that can effectively utilize the space in the passenger compartment.

In order to achieve the above object, the wheelchair-mounted auxiliary device in the passenger vehicle according to claim 1 of the present invention is installed in the passenger compartment of the passenger vehicle and has a backrest portion having a support surface facing the back support of the wheelchair. And, when viewed from the side view from the vehicle width direction, which is provided on the backrest portion, a storage posture in which the vehicle does not protrude from the support surface and a protrusion posture in which the vehicle protrudes from the support surface are selectively adopted. It is equipped with a stool that allows occupants other than the occupants to sit down.

According to the first aspect of the present invention, the backrest portion having the support surface facing the back support of the wheelchair has a storage posture that does not protrude from the support surface and a protrusion that protrudes from the support surface when viewed from the vehicle width direction. There is a stool that selectively takes the posture. Therefore, when a wheelchair occupant is present, the back support of the wheelchair can be opposed to the support surface of the backrest portion by setting the seat portion in the stowed posture, and the wheelchair can be held by the backrest portion. When there is no wheelchair occupant, the occupant other than the wheelchair occupant can be seated on the stool portion by setting the stool portion in a protruding posture. In this way, the wheelchair-mounted auxiliary device, which was exclusively for wheelchair occupants, can be used by occupants other than wheelchair occupants, so that the space in the passenger compartment can be effectively utilized.

As described above, according to the present invention, it is possible to effectively utilize the space in the passenger compartment in a shared vehicle on which a wheelchair can be mounted.

(A) It is a side view which shows the wheelchair-mounted auxiliary device which concerns on 1st Embodiment. (B) It is a side view which shows the state which the wheelchair is held by the wheelchair mounting auxiliary device which concerns on 1st Embodiment. (A) It is an enlarged perspective view which shows the state when the seat portion of the wheelchair mounting auxiliary device which concerns on 1st Embodiment takes a storage posture. (B) It is an enlarged perspective view which shows the state when the seat portion of the wheelchair mounting auxiliary device which concerns on 1st Embodiment takes a protruding posture. It is a side view which shows the state which a healthy person is using the wheelchair-mounted auxiliary device which concerns on 1st Embodiment. (A) It is an enlarged perspective view which shows the state when the seat portion of the wheelchair mounting auxiliary device which concerns on 2nd Embodiment takes a storage posture. (B) It is an enlarged perspective view which shows the state when the seat portion of the wheelchair mounting auxiliary device which concerns on 2nd Embodiment takes a protruding posture. (A) It is an enlarged perspective view which shows the state when the seat portion of the wheelchair mounting auxiliary device which concerns on 3rd Embodiment takes a storage posture. (B) It is an enlarged perspective view which shows the state when the seat portion of the wheelchair mounting auxiliary device which concerns on 3rd Embodiment takes a protruding posture. (A) It is an enlarged perspective view which shows the state when the seat portion of the wheelchair mounting auxiliary device which concerns on 4th Embodiment takes a storage posture. (B) It is an enlarged perspective view which shows the state when the seat portion of the wheelchair mounting auxiliary device which concerns on 4th Embodiment takes a protruding posture. (A) It is an enlarged perspective view which shows the state when the seat portion of the wheelchair mounting auxiliary device which concerns on 5th Embodiment takes a storage posture. (B) It is an enlarged perspective view which shows the state when the seat portion of the wheelchair mounting auxiliary device which concerns on 5th Embodiment takes a protruding posture. It is a side view which shows the appearance of the automatic driving bus which installed the wheelchair-mounted auxiliary device which concerns on this embodiment.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. For convenience of explanation, the arrow UP shown appropriately in each figure is the vehicle body upward direction, the arrow FR is the vehicle body front direction, and the arrow RH is the vehicle body right direction. Therefore, in the following explanation, when the directions of up / down, front / rear, and left / right are described without special mention, they indicate up / down in the vertical direction of the vehicle body, front / rear in the front / rear direction of the vehicle body, and left / right in the left / right direction of the vehicle body (vehicle width direction). To do. In addition, the view from the vehicle width direction is referred to as "side view".

<First Embodiment>
As shown in FIG. 1, the wheelchair-mounted auxiliary device (hereinafter, simply referred to as “auxiliary device”) 10 according to the first embodiment is an automatic driving bus (hereinafter, simply referred to as “auxiliary device”) 10 as an example of a shared vehicle as shown in FIG. It is installed on the floor 16 of the passenger compartment 14 in the (simply referred to as "bus") 12.

Specifically, as shown in FIG. 1 (A), the auxiliary device 10 is on the upper side and the rear side of the front end portion of the wheelchair-only space (not shown) set on the floor 16 of the passenger compartment 14. It has a leg portion 18 provided so as to extend to, a backrest portion 20 provided at the upper end portion 18A of the leg portion 18, and a seat portion 30 provided on the lower side of the backrest portion 20. ..

The leg portion 18 is formed in a substantially rectangular cross-sectional shape in which the vehicle width direction is the longitudinal direction and the front-rear direction is the thickness direction, and is formed in a substantially inverted "J" shape when viewed from the side. That is, the upper end portion 18A of the leg portion 18 is bent rearward in a curved shape. The leg portion 18 may be made of metal or resin as long as it has a certain degree of rigidity.

The backrest portion 20 is composed of a substantially rectangular block-shaped cushion member 22 having a longitudinal direction in the vertical direction and a thickness direction in the front-rear direction, and a cover member 24 covering the cushion member 22. The rear surface of the member 24 is a support surface 26. The lower portion of the front surface 28 of the cover member 24 is integrally attached to the upper end portion 18A of the leg portion 18 so that the upper portion of the backrest portion 20 is in a forward leaning posture located forward of the lower portion.

Here, the backrest portion 20 constitutes an auxiliary device 10 when a occupant of the wheelchair 50 (not shown) gets on the bus 12 in a backward posture. Therefore, as shown in FIG. 1 (B), in the wheelchair 50, the back support 52 located between the pair of left and right hand-push handles 54 is opposed (close or in contact) to the support surface 26 of the backrest portion 20. Placed in.

That is, the backrest portion 20 is arranged between the pair of left and right hand push handles 54 of the wheelchair 50. As a result, in the occupant of the wheelchair 50 who gets on the bus 12 in a backward posture, the wheelchair 50 is held by the backrest portion 20, and the careless movement of the wheelchair 50 is restricted.

Further, as shown in FIG. 2, the cushion member 22 provided inside the backrest portion 20 is divided into an upper cushion member 22U and a lower cushion member 22D. The upper cushion member 22U is arranged above the upper end portion 18A of the leg portion 18, and the lower cushion member 22D is arranged below the upper end portion 18A of the leg portion 18. That is, the upper end portion 18A of the leg portion 18 is arranged at a substantially same height position as the storage portion 23 described later, and the upper cushion member 22U is formed longer than the lower cushion member 22D in the vertical direction.

The upper cushion member 22U is supported by a support member 21 having a substantially inverted "U" shape in front view provided inside the cover member 24, and the left and right side walls 21A of the support member 21 have an outer surface thereof. It is arranged along the inner surface of the left and right side walls 24A of the cover member 24. That is, the lower cushion member 22D is arranged between the left and right side walls 21A of the support member 21. Further, the cushion member 22 is formed of, for example, a urethane foam-based elastic body, and the cover member 24 is made of cloth, leather, or the like.

Further, a stool portion 30 is incorporated between the upper cushion member 22U (upper wall 21B of the support member 21) and the lower cushion member 22D. The stool portion 30 constitutes an auxiliary seat that allows an occupant other than the occupant of the wheelchair 50 (for example, a healthy person P: see FIG. 3) to easily sit on the seat. The elastic body forms a roll with the vehicle width direction as the axial direction.

Further, one ends of a pair of left and right support plates 32 having an elongated rectangular flat plate shape are rotatably attached to both ends of the stool portion 30 in the axial direction. The support plate 32 may be made of metal or resin as long as it has a certain degree of rigidity. The other ends of the pair of left and right support plates 32 are rotatably attached to the inner surfaces of the left and right side walls 21A of the support member 21.

Further, columnar stoppers (not shown) protruding inward in the vehicle width direction are provided on the lower inner surface side and the rear side of the left and right side walls 21A of the support member 21, respectively. That is, when the stool portion 30 rotates backward and downward, the peripheral edges of the support plates 32 in the longitudinal direction come into contact with the stoppers from above. As a result, the rotation of the stool portion 30 to the rear lower side is restricted so as to reach a predetermined height position.

Further, hemispherical convex portions (not shown) projecting inward in the vehicle width direction are provided on the upper side of the inner surface and the rear side of the left and right side walls 21A of the support member 21, respectively. That is, when the stool portion 30 rotates forward and upward, each support plate 32 gets over each convex portion, and the longitudinal edge portion of each support plate 32 hits each convex portion from the front. .. As a result, the rotation of the stool portion 30 to the rear lower side is restricted, and the stool portion 30 is held by the storage portion 23.

As described above, the stool portion 30 is stored in the storage portion 23 formed between the upper cushion member 22U (upper wall 21B of the support member 21) and the lower cushion member 22D (see FIG. 2A). And, by rotating with the other end of the support plate 32 as a rotation fulcrum, it is possible to take a protruding posture (see FIG. 2B) arranged on the rear side of the lower cushion member 22D. ..

In other words, the seat portion 30 is rotatably supported by the left and right side walls 21A of the support member 21, so that the seat portion 30 does not protrude from the support surface 26 in a side view (it does not hinder the occupant of the wheelchair 50). The posture and the protruding posture protruding from the support surface 26 can be selectively taken.

The distance (height of the storage portion 23) between the lower surface of the upper cushion member 22U (upper wall 21B of the support member 21) and the upper surface of the lower cushion member 22D is slightly larger than the outer diameter of the seat portion 30. ing. More specifically, the gap between the outer peripheral surface of the stool portion 30 and the upper surface of the lower cushion member 22D is larger than the gap between the outer peripheral surface of the stool portion 30 and the lower surface of the upper cushion member 22U (upper wall 21B of the support member 21). It is slightly larger (see FIG. 1 (A)).

As a result, when the stool portion 30 is pulled out from the storage portion 23, the stool portion 30 does not interfere with (does not hit) the corner portion on the upper rear side of the lower cushion member 22D, so that the stool portion 30 can be easily pulled out. It has become.

Further, as shown in FIG. 3, a occupant other than the occupant of the wheelchair 50, for example, a healthy person P can be seated on the stool portion 30 in the protruding posture. At this time, the support surface 26 corresponding to the upper cushion member 22U can also support the back of the healthy person P. Further, the storage operation for the stool portion 30 and the pull-out operation for projecting the seat portion 30 are manually performed by the healthy person P.

The operation of the auxiliary device 10 according to the first embodiment having the above configuration will be described next.

As shown in FIGS. 1 (A) and 2 (A), the stool portion 30 normally takes a storage posture in which the backrest portion 20 is stored in the storage portion 23. That is, the seat portion 30 is the lower surface of the upper cushion member 22U in a state where the peripheral edge portion in the longitudinal direction of the support plate 32 is in contact with the convex portion projecting from the inner surface of the left and right side walls 21A of the support member 21 from the front. It is held between (the upper wall 21B of the support member 21) and the upper surface of the lower cushion member 22D. This prevents the stool portion 30 from inadvertently rotating due to vibration or the like generated while the bus 12 is traveling (due to the convex portion).

When an occupant of the wheelchair 50 gets on the bus 12, as shown in FIG. 1 (B), the occupant puts the wheelchair 50 backward in the wheelchair-only space set on the floor 16 on the rear side of the backrest portion 20. Deploy. That is, the backrest portion 20 is relatively arranged between the hand push handles 54 of the wheelchair 50, and the back support 52 of the wheelchair 50 faces the support surface 26 of the backrest portion 20.

As a result, in the occupant of the wheelchair 50 who gets on the bus 12 in a backward posture, the wheelchair 50 is held by the backrest portion 20, and the careless movement of the wheelchair 50 is restricted. Therefore, the safety of the occupant of the wheelchair 50 who gets on the bus 12 in the backward posture while the bus 12 is running is further ensured.

On the other hand, when the occupant of the wheelchair 50 is not on the bus 12, that is, when only the healthy person P is on the bus 12, and the number of seats is insufficient for the number of occupants, FIG. 2 (B) shows. As shown, the healthy person P pulls out the stool portion 30 stored in the storage portion 23 of the backrest portion 20. That is, the stool portion 30 is rotated backward and downward to take a protruding posture.

As a result, as shown in FIG. 3, an auxiliary seat can be formed by the support surface 26 corresponding to the upper cushion member 22U and the stool portion 30, and the healthy person P can be seated on the stool portion 30. That is, the auxiliary device 10 dedicated to the occupant of the wheelchair 50 can be used by the healthy person P (an occupant other than the occupant of the wheelchair 50). Therefore, the space of the vehicle interior 14 can be effectively utilized as compared with the configuration in which the seat portion 30 is not incorporated in the backrest portion 20.

Moreover, since the stool portion 30 is formed in a roll shape rotatably supported by the left and right side walls 21A of the support member 21 via the support plate 32, it can be easily configured and the backrest portion 20 can be formed. It can be compactly stored in the formed storage unit 23. When a occupant of the wheelchair 50 gets on the wheelchair 50, the healthy person P grips the stool portion 30 and rotates it forward and upward (the support plate 32 gets over the convex portion), so that the stool portion 30 becomes the storage portion 23. It is stored in.

<Second Embodiment>
Next, the auxiliary device 10 according to the second embodiment shown in FIG. 4 will be described. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description (including common actions) will be omitted as appropriate. Further, in FIG. 4, the support member 21 is not shown.

As shown in FIG. 4, in this second embodiment, no convex portion is formed on the inner surface of the left and right side walls 21A (see FIG. 2) of the support member 21, and the left and right side walls 21A and a pair of left and right supports are supported. It differs from the first embodiment only in that a pair of left and right torsion springs 34 are erected between the plate 32 and the other end.

That is, each torsion spring 34 constantly urges the stool portion 30 to be stored in the storage portion 23, and when the healthy person P is not seated on the stool portion 30 (no external force is applied to the stool portion 30). Occasionally), the stool portion 30 is configured to be automatically accommodated in the accommodating portion 23 by the urging force of each torsion spring 34.

The operation of the auxiliary device 10 according to the second embodiment having the above configuration will be described next.

As shown in FIG. 4A, normally, the stool portion 30 takes a stowed posture by the urging force of the torsion spring 34. Therefore, it is possible to prevent the stool portion 30 from inadvertently rotating due to vibration or the like generated while the bus 12 is traveling. Then, when the occupant of the wheelchair 50 gets on the bus 12, the operation is the same as that of the first embodiment.

On the other hand, when the occupant of the wheelchair 50 is not on the bus 12, that is, when only the healthy person P is on the bus 12, and the number of seats is insufficient for the number of occupants, FIG. 4 (B) shows. As shown, the healthy person P pulls out the stool portion 30 stored in the storage portion 23 of the backrest portion 20 against the urging force of the torsion spring 34. That is, the stool portion 30 is rotated backward and downward to take a protruding posture.

As a result, as in the first embodiment, the support surface 26 corresponding to the upper cushion member 22U and the stool portion 30 can form an auxiliary seat, and the healthy person P can be seated on the stool portion 30. .. If the healthy person P is separated from the stool portion 30 (unless an external force is applied to the stool portion 30), the stool portion 30 is automatically rotated forward and upward by the urging force of the torsion spring 34 and stored. It is stored in the part 23. As described above, the second embodiment has an advantage that the operation of storing the stool portion 30 in the storage portion 23 can be omitted as compared with the first embodiment.

<Third Embodiment>
Next, the auxiliary device 10 according to the third embodiment shown in FIG. 5 will be described. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description (including common actions) will be omitted as appropriate. Further, also in FIG. 5, the illustration of the support member 21 is omitted.

As shown in FIG. 5, in the third embodiment, the convex portion and the stopper are not formed on the inner surface of the left and right side walls 21A (see FIG. 2) of the support member 21, and the inner surface of the left and right side walls 21A is not formed. A pair of left and right disc-shaped support shafts 36 are provided, and a pair of left and right guide plates 38 that are relatively guided by each support shaft 36 are provided, which is opposite to the seat portion 40 of the guide plate 38. The weight portion 37 is provided on the side, and the upper end portion 18A of the leg portion 18 is arranged at a position substantially the same height as the lower cushion member 22D, which is different from the first embodiment.

Specifically, each guide plate 38 is formed in an arc shape and a frame shape in a side view, and has an opening 38A into which the support shaft 36 is inserted. That is, the inner diameter of the opening 38A (the width in the direction orthogonal to the longitudinal direction) is the same as the outer diameter of the support shaft 36. Then, both ends in the axial direction of the stool 30 are placed on the inner surface of one end of each guide plate 38 so that one end of the arc shape in the opening 38A of each guide plate 38 and the axial center of the stool 30 are coaxial. Are attached to each.

Further, substantially elliptical notches 30A are formed at both ends of the stool portion 30 in the axial direction along the shape of the opening 38A of each guide plate 38, and the stool portion 30 takes a storage posture. Therefore, the support shaft 36 is relatively inserted into the notch 30A. Therefore, the depth of the notch 30A is equal to or slightly deeper than the thickness of the support shaft 36. The support shaft 36 and the guide plate 38 may be made of metal or resin as long as they have a certain degree of rigidity.

Further, both ends in the axial direction of the columnar weight portion 37 are attached to the inner surface of each guide plate 38 at the other end. The weight of the weight portion 37 is the same as or slightly heavier than the weight of the stool portion 30. Further, the outer diameter of the weight portion 37 is the same as or slightly smaller than the width between the inner peripheral edge and the outer peripheral edge formed by the opening 38A of the guide plate 38.

As a result, the weight portion 37 does not interfere with (do not hit) the support shaft 36 when the seat portion 30 takes a protruding posture. Further, a part of the front surface 28 corresponding to the storage portion 23 of the cover member 24 is formed with an opening (not shown) through which the other end side of each guide plate 38 and the weight portion 37 can be movably inserted. ..

The operation of the auxiliary device 10 according to the third embodiment having the above configuration will be described next.

As shown in FIG. 5A, normally, the stool portion 30 takes a storage posture of being stored in the storage portion 23 of the backrest portion 20. Here, a weight portion 37 that is equal to or slightly heavier than the weight of the stool portion 30 is attached to the other end of the guide plate 38 (the side opposite to the stool portion 30). Therefore, it is possible to prevent the stool portion 30 from inadvertently moving due to vibration or the like generated while the bus 12 is traveling. Then, when the occupant of the wheelchair 50 gets on the bus 12, the operation is the same as that of the first embodiment.

On the other hand, when the occupant of the wheelchair 50 is not on the bus 12, that is, when only the healthy person P is on the bus 12, and the number of seats is insufficient for the number of occupants, FIG. 5 (B) shows. As shown, the healthy person P pulls out the stool portion 30 stored in the storage portion 23 of the backrest portion 20.

That is, while the guide plate 38 is relatively guided by the support shaft 36, the stool portion 30 is pulled out rearward to take a protruding posture. As a result, as in the first embodiment, the support surface 26 corresponding to the upper cushion member 22U and the stool portion 30 can form an auxiliary seat, and the healthy person P can be seated on the stool portion 30. ..

When an occupant of the wheelchair 50 gets on board, the healthy person P grips the stool portion 30 and pushes it forward, so that the stool portion 30 is stored in the storage portion 23. At this time, since the weight portion 37 is attached to the other end of the guide plate 38, the seat portion 30 can be moved to the storage portion 23 with a light operating force while the guide plate 38 is relatively guided by the support shaft 36. It is stored.

<Fourth Embodiment>
Next, the auxiliary device 10 according to the fourth embodiment shown in FIG. 6 will be described. The same parts as those in the first to third embodiments are designated by the same reference numerals, and detailed description (including common actions) will be omitted as appropriate. Further, also in FIG. 6, the illustration of the support member 21 is omitted.

As shown in FIG. 6, in the fourth embodiment, each support shaft 36 is rotatably supported on the inner surface of the left and right side walls 21A (see FIG. 2) of the support member 21, and the outer circumference of each support shaft 36 is supported. A point where a gear 36A is formed on the surface and a gear 38B that meshes with the gear 36A is formed on the inner peripheral surface of the opening 38A of each guide plate 38, and each support shaft 36 and one end of each guide plate 38. A pair of left and right spiral springs (not shown) are erected between the two, and the weight portion 37 is removed, which is different from the third embodiment.

Specifically, in the storage posture of the stool portion 30 shown in FIG. 6A, one end of each spiral spring is attached to one end of each guide plate 38, and the other end of each spiral spring is attached. , Are attached to each support shaft 36, respectively. Therefore, when the stool portion 30 is pulled out, the spiral spring is extended with the rotation of each support shaft 36. Then, when the stool portion 30 is pulled out and the hand is released (unless an external force is applied to the stool portion 30), each support shaft 36 is rotated by the restoring force of the spiral spring, and the stool portion 30 is automatically stored in the storage portion 23. It is configured to be stored in.

The operation of the auxiliary device 10 according to the fourth embodiment having the above configuration will be described next.

As shown in FIG. 6A, normally, the stool portion 30 takes a storage posture of being stored in the storage portion 23 of the backrest portion 20. Here, one end of each spiral spring is attached to one end of each guide plate 38, and the other end of each spiral spring is attached to each support shaft 36, respectively.

That is, the stool portion 30 is urged in the direction of being stored in the storage portion 23. Therefore, it is possible to prevent the stool portion 30 from inadvertently moving due to vibration or the like generated while the bus 12 is traveling. Then, when the occupant of the wheelchair 50 gets on the bus 12, the operation is the same as that of the first embodiment.

On the other hand, when the occupant of the wheelchair 50 is not on the bus 12, that is, when only the healthy person P is on the bus 12, and the number of seats is insufficient for the number of occupants, FIG. 6 (B) shows. As shown, the healthy person P pulls out the stool portion 30 stored in the storage portion 23 of the backrest portion 20 against the urging force of the spiral spring. That is, the stool portion 30 is pulled out while the guide plate 38 is relatively guided by the support shaft 36 to take the protruding posture.

As a result, as in the first embodiment, the support surface 26 corresponding to the upper cushion member 22U and the stool portion 30 can form an auxiliary seat, and the healthy person P can be seated on the stool portion 30. .. At this time, since the gear 36A of each support shaft 36 meshes with the gear 38B of each guide plate 38, each support shaft 36 rotates and each spiral spring is stretched as the seat portion 30 is pulled out. ..

Therefore, if the healthy person P is separated from the stool portion 30 (unless an external force is applied to the stool portion 30), the stool portion 30 is automatically stored by the rotation of each support shaft 36 due to the restoring force of each spiral spring. It is stored in the part 23. As described above, the fourth embodiment has an advantage that the operation of storing the stool portion 30 in the storage portion 23 can be omitted as compared with the third embodiment.

<Fifth Embodiment>
Finally, the auxiliary device 10 according to the fifth embodiment shown in FIG. 7 will be described. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description (including common actions) will be omitted as appropriate. Further, also in FIG. 7, the illustration of the support member 21 is omitted.

As shown in FIG. 7, in the fifth embodiment, the convex portion and the stopper are not formed on the inner surface of the left and right side walls 21A (see FIG. 2) of the support member 21, and the lower surface (support) of the upper cushion member 22U is not formed. A point where a substantially rectangular block-shaped stool 40 is slidably supported in the front-rear direction between the upper wall 21B of the member 21 (see FIG. 2) and the upper surface of the lower cushion member 22D, and the upper end of the leg 18. It differs from the first embodiment in that 18A is arranged at substantially the same height as the lower cushion member 22D.

Specifically, the vertical direction of the stool portion 40 is the thickness direction, and the length in the vehicle width direction is the same as the length of the cushion member 22 in the vehicle width direction. The stool portion 40 is formed to have a length in the front-rear direction longer than the thickness of the cushion member 22, and is formed to a length such that a healthy person P can sit when projected from the support surface 26 in a side view. Has been done. The stool portion 40 is formed of, for example, the same urethane foam-based elastic body as the stool portion 30.

Further, the thickness of the stool portion 40 is formed to be slightly smaller than the distance between the lower surface of the upper cushion member 22U (upper wall 21B of the support member 21) and the upper surface of the lower cushion member 22D (height of the storage portion 23). .. That is, the stool portion 40 has a slight gap in the vertical direction with respect to the storage portion 23. Further, the stool portion 40 has a weight (not shown) built in the front portion thereof so that the front portion is heavier than the rear portion.

Further, guide grooves 44 extending in the front-rear direction are formed in substantially central portions of the left and right side surfaces 42 of the stool portion 40 in the vertical direction. Then, on the inner surfaces of the left and right side walls 21A of the support member 21, a protrusion 25 having a rectangular cross-sectional shape, which is inserted into the guide groove 44 with the vertical direction being the thickness direction, is projected inward in the vehicle width direction. There is.

That is, as shown in FIG. 7A, when the seating portion 40 takes a storage posture in which the seating portion 40 does not protrude from the support surface 26, the protruding portion 25 is located at the rear end portion of the guide groove 44. Then, as shown in FIG. 7B, when the stool portion 40 takes a protruding posture protruding from the support surface 26, the protruding portion 25 is located at the front end portion of the guide groove 44.

A notch 44A (having the same cross-sectional shape as the protrusion 25) into which the protrusion 25 can be inserted from below is formed on the upper side of the front end portion of the guide groove 44. Further, as described above, the stool portion 40 has a slight gap in the vertical direction with respect to the storage portion 23. Therefore, when the stool 40 takes a protruding posture, the stool 40 is slightly lowered due to its own weight, and the protrusion 25 is inserted into the notch 44A.

As a result, the stool portion 40 is locked in the protruding posture, and the position is stabilized. The stool portion 40 is slightly tilted rearward and downward in a side view. That is, the seating surface angle of the stool portion 40 is configured to be an angle that makes it easy for the occupant (healthy person P) to sit on the stool portion 40.

Further, a recess 48 on which a finger can be hung when the stool 40 is pulled out is formed on the upper portion of the rear surface 46 which is a wall surface on the drawer side of the stool 40. Further, an opening (not shown) is formed in a part of the front surface 28 corresponding to the storage portion 23 of the cover member 24 so that the front portion side of the stool portion 40 can be movably inserted.

The operation of the auxiliary device 10 according to the fifth embodiment having the above configuration will be described next.

As shown in FIG. 7A, normally, the stool portion 40 takes a storage posture of being stored in the storage portion 23 of the backrest portion 20. That is, the protrusion 25 is located at the rear end of the guide groove 44, and the rear surface 46 is flush with the support surface 26 (so as not to project from the support surface 26).

Here, the front portion of the stool portion 40 is heavier than the rear portion due to the weight. Therefore, it is possible to prevent the stool portion 40 from being carelessly moved due to vibration or the like generated while the bus 12 is traveling. Then, when the occupant of the wheelchair 50 gets on the bus 12, the operation is the same as that of the first embodiment.

On the other hand, when the occupant of the wheelchair 50 is not on the bus 12, that is, when only the healthy person P is on the bus 12, and the number of seats is insufficient for the number of occupants, FIG. 7 (B) shows. As shown, the healthy person P pulls out the stool portion 40 stored in the storage portion 23 of the backrest portion 20. That is, a finger is hung on the recess 48, and the stool 40 is pulled out rearward while the guide groove 44 is relatively guided by the protrusion 25 to take a protruding posture.

Then, the protrusion 25 is located at the front end of the guide groove 44, and the protrusion 25 is inserted into the notch 44A by the weight of the stool 40. As a result, the stool portion 40 is locked in the protruding posture, and its position is stabilized. That is, as in the first embodiment, the auxiliary seat can be formed by the support surface 26 corresponding to the upper cushion member 22U and the stool portion 40, and the healthy person P can be seated on the stool portion 40. Moreover, since the stool portion 40 is slightly tilted rearward and downward, the healthy person P can easily sit on it.

When the occupant of the wheelchair 50 gets on the vehicle, the healthy person P grips the stool portion 40 and moves it upward, and removes the protrusion 25 from the notch 44A. Then, by pushing the stool portion 40 forward in this state, the stool portion 40 is stored in the storage portion 23. At this time, since the weight is built in the front portion of the stool portion 40, the stool portion 40 is stored in the storage portion 23 with a light operating force while the guide groove 44 is relatively guided by the protrusion 25.

The wheelchair-mounted assisting device 10 according to the present embodiment has been described above with reference to the drawings, but the wheelchair-mounted assisting device 10 according to the present embodiment is not limited to the one shown in the drawing, and the gist of the present invention is described. The design can be changed as appropriate within the range that does not deviate. For example, the shared vehicle is not limited to the automatic driving bus 12, and may be an ordinary bus or the like driven by a crew member.

Further, since the backrest portion 20 according to each of the above embodiments is provided for the occupant of the wheelchair 50 who rides in the rearward posture, the support surface 26 thereof faces the rear facing the back support 52 of the wheelchair 50. However, it is not limited to this. When the backrest portion 20 is provided for the occupant (not shown) of the wheelchair 50 who is riding in the forward posture, the support surface 26 facing the back support 52 of the wheelchair 50 faces forward.

Further, the backrest portion 20 is not limited to the configuration supported by the leg portions 18 projecting from the floor 16, and is supported by, for example, a support bracket (not shown) provided on the side wall of the vehicle interior 14. It may be configured. Further, the leg portion 18 that supports the backrest portion 20 is not limited to the shape shown in the figure.

Further, the torsion spring 34 and the spiral spring are not limited to the configuration in which the left and right springs are provided in pairs, and either the left or right side is provided as long as the urging force for returning the stool portion 30 to the storage portion 23 is sufficiently secured. It may be configured to be provided only in the spring. Further, the stool portion 30 is not limited to the shown roll shape.

10 Wheelchair-mounted auxiliary device 12 Self-driving bus (shared vehicle)
20 Backrest 26 Support surface 30 Stool 40 Stool 50 Wheelchair 52 Back support P Healthy person (occupant other than wheelchair occupant)

Claims (1)

A backrest that is installed in the passenger compartment of a shared vehicle and has a support surface that faces the back support of a wheelchair.
The wheelchair occupant is provided on the backrest portion and selectively adopts a storage posture in which the vehicle does not protrude from the support surface and a protrusion posture in which the vehicle protrudes from the support surface when viewed from the vehicle width direction. A stool that allows other occupants to sit,
Wheelchair-mounted auxiliary device in a shared vehicle equipped with.