Backrest structure of a vehicle

Abstract

The present invention provides a backrest structure for a vehicle. The backrest structure (30) for a vehicle comprises: a horizontal armrest portion (36) which is fixed in a vehicle compartment and extends in a horizontal direction; a backrest (40) which has a cushion portion (41) formed of a soft material and supports the back of a wheelchair user sitting on the wheelchair when supported in the vehicle compartment; the backrest (40) has a concave portion (43) which opens downward and is locked on the horizontal armrest portion (36), and the backrest (40) is supported on the horizontal armrest portion (36) in a detachable manner.

Description

[0001] Priority Information

[0002] This application claims priority to Japanese Patent Application No. 2021-100138, filed on June 16, 2021, which is incorporated herein by reference. Technical Field

[0003] The present disclosure relates to a backrest structure having a backrest that supports the back of a wheelchair user sitting on a wheelchair in a vehicle compartment, and particularly relates to mitigation of impact applied to the wheelchair user, facilitation of attachment and detachment of the backrest, and cost reduction. Background Art

[0004] Japanese Unexamined Patent Application Publication No. 3-1859 discloses the following: In a bus having a seat for a wheelchair user, a backrest having cushioning properties is arranged to face the back of the user sitting on the wheelchair, and the backrest is supported on the floor by a column. Thereby, the impact applied to the wheelchair user due to sudden start or rear-end collision of the bus is mitigated.

[0005] In a vehicle that can accommodate a wheelchair user sitting on a wheelchair, when the backrest is fixed in a manner that it cannot be easily detached from the vehicle, the space occupied by the backrest is wasted when the wheelchair user is not riding. On the other hand, when the backrest is attached to the vehicle using fastening members such as screws, the operation of attaching and detaching the backrest from the vehicle is troublesome. In addition, there is a demand to reduce the cost of the structure for supporting the backrest on the vehicle. Summary of the Invention

[0006] An object of the present disclosure is to provide a backrest structure for a vehicle that can mitigate the impact applied to a wheelchair user using the backrest, can be easily attached and detached with respect to the vehicle, and can easily achieve cost reduction.

[0007] The backrest structure for a vehicle according to the present disclosure is a backrest structure for a vehicle including: a horizontal armrest portion fixed in a vehicle compartment and extending in a horizontal direction; a backrest having a cushioning pad portion formed of a soft material and supporting the back of a wheelchair user sitting on a wheelchair in a state of being supported in the vehicle compartment, the backrest having a concave-shaped portion that opens downward and is engaged with the horizontal armrest portion, and the backrest being supported on the horizontal armrest portion in a detachable manner.

[0008] According to the backrest structure of the vehicle related to the present disclosure, since the backrest having a cushioning pad portion and being locked to the horizontal armrest portion can support the spine and back of the wheelchair user, even when the vehicle makes a large movement such as in the case of emergency braking, the impact applied to the wheelchair user can be mitigated by the backrest. In addition, the backrest can be easily detached from the horizontal armrest portion by lifting the backrest, and the backrest can be easily mounted on the horizontal armrest portion by locking the concave-shaped portion to the horizontal armrest portion. Further, since the horizontal armrest portion can be used for supporting the backrest on the vehicle, there is no need to provide a dedicated component for supporting the backrest on the vehicle. Thus, cost reduction is easily achieved.

[0009] In the backrest structure of the vehicle related to the present disclosure, it may also be configured such that the backrest includes a reinforcing tube, the reinforcing tube being embedded in the cushioning pad portion and having a shape that opens downward along the inner surface of the concave-shaped portion.

[0010] According to the above structure, since the shape of the concave-shaped portion is easily maintained by the reinforcing tube embedded in the cushioning pad portion and having a shape that opens downward along the inner surface of the concave-shaped portion, it is difficult for the backrest to fall off the horizontal armrest portion.

[0011] In addition, in the backrest structure of the vehicle related to the present disclosure, it may also be configured such that there is an armrest reinforcing bracket fixed between the side surface of the horizontal armrest portion on the vehicle wall side and the wall portion, and the combined side end of the armrest reinforcing bracket with respect to the horizontal armrest portion extends in a direction orthogonal to the extending direction of the horizontal armrest portion. The backrest has a bracket locking groove that opens downward at the wall portion side and connects the wall portion side end of the backrest and the concave-shaped portion, and is for locking the combined side end of the armrest reinforcing bracket.

[0012] According to the above structure, by locking the combined side end of the armrest reinforcing bracket with respect to the horizontal armrest portion in the bracket locking groove, the situation where the backrest moves offset in the extending direction of the horizontal armrest portion is suppressed, and there is no need to provide a dedicated component on the vehicle for suppressing the situation where the backrest moves in the extending direction of the horizontal armrest portion.

[0013] In addition, in the backrest structure of the vehicle related to the present disclosure, it may also be configured such that the backrest has a storage portion that can store the belt for fixing the wheelchair.

[0014] According to the above structure, since the belt can be stored in the storage portion when not in use, and the belt and the backrest can be stored integrally when the wheelchair user does not ride in the vehicle, the storage operation of the belt and the boarding preparation operation of the wheelchair user can be facilitated.

[0015] According to the backrest structure of the vehicle according to the present disclosure, the impact applied to the wheelchair user can be mitigated by the backrest, the backrest can be easily disassembled and assembled with respect to the vehicle, and cost reduction is easily achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a perspective view of the interior of a vehicle equipped with the backrest structure of the embodiment of the present disclosure.

[0017] Figure 2 It is a view for observing the state where the backrest is disposed opposite to the back of the wheelchair user in the left-right direction inside the vehicle compartment of Figure 1 .

[0018] Figure 3 It is a perspective view showing a part that is a part of the lateral armrest portion and is fixed to the wall portion of the vehicle via a reinforcing bracket in a state where the partition plate portion is omitted.

[0019] Figure 4 It is a perspective view for observing the backrest structure from the rear side of the vehicle.

[0020] Figure 5 It is a perspective view for observing the backrest structure from the front side of the vehicle.

[0021] Figure 6 It is a view for observing the backrest structure from the front side of the vehicle.

[0022] Figure 7 It is a Figure 6 cross-sectional view taken along line A-A of

[0023] Figure 8 It is a perspective view for observing, in a backrest structure of another example of the embodiment of the present disclosure, from the front side of the vehicle in a state where the lower part of the backrest is omitted.

[0024] Figure 9 It is a Figure 8 cross-sectional view taken along line B-B of the backrest structure of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Hereinafter, the backrest structure of the vehicle according to the embodiment of the present disclosure will be described. In this description, specific shapes, materials, numbers, arrangement positions, etc. are examples for facilitating understanding of the present disclosure and can be appropriately changed according to specifications. In addition, the arrow marks F, arrow mark U, and arrow mark R shown in each drawing respectively represent the front direction, the upward direction, and the right direction of the vehicle. In addition, the opposite directions of the arrow marks F, arrow mark U, and arrow mark R respectively refer to the rear direction, the downward direction, and the left direction of the vehicle.

[0026] Figure 1 It is a perspective view of the interior of the vehicle compartment 2 of the vehicle 1 equipped with the backrest structure 30 of the embodiment. Figure 2 It is a view when observing the state where the backrest 40 is disposed opposite to the back 101 of the wheelchair user 100 in the vehicle compartment 2 in the left-right direction of the vehicle.

[0027] The backrest structure 30 is provided on a bus-type vehicle 1 which is a shared vehicle. On the vehicle 1, a wheelchair user 100 seated on a wheelchair 80 can ride. The backrest structure 30 uses the backrest 40 supported on the horizontal armrest portion 36 to support the back 101 of the wheelchair user 100. The backrest 40 has a concave-shaped portion 43 that opens downward and is locked to the horizontal armrest portion 36, so that the backrest is supported on the horizontal armrest portion 36 in a detachable manner. Thus, a structure can be realized in which the backrest 40 can be easily disassembled and assembled relative to the vehicle 1 and cost reduction is easily achieved. Hereinafter, first, the structure inside the vehicle compartment 2 of the vehicle 1 will be described, and then the backrest structure 30 will be described in detail.

[0028] The vehicle 1 includes a driver's seat 3 provided at the front part inside the vehicle compartment 2 and a plurality of passenger seats (not shown) provided at a position behind the driver's seat 3 inside the vehicle compartment 2. Inside the vehicle compartment 2, a wall portion 4 is fixed at the rear side of the driver's seat 3. The wall portion 4 is formed to include a partition plate portion 5 and a frame structure 7 provided on the front side of the partition plate portion 5 ( Figure 2 )). The illustration of the frame structure is omitted in Figure 1 . The partition plate portion 5 is formed of a hard resin material or a metal material. The partition plate portion 5 extends upward from the floor and is bent obliquely rearward through an inclined portion 6 provided at the middle portion, and extends upward at a portion above the inclined portion 6. The partition plate portion 5 has the function of separating the driving space S1 where the driver's seat 3 is disposed and the wheelchair arrangement space S2 where the wheelchair 80 can be arranged.

[0029] The frame structure 7 is arranged adjacent to the front side of the partition portion 5, and is formed by combining a plurality of column portions extending in the vertical direction and a plurality of frames extending in the horizontal direction. The frame structure 7 has the function of supporting each of the partition portion 5 and the driver's seat 3.

[0030] In the wheelchair arrangement space S2, a tubular end armrest 9 extending in the front-rear direction is provided near the vehicle compartment wall 8 provided at the right end. A plurality of positions in the front-rear direction of the end armrest 9 are fixed to a vehicle body frame (not shown) provided below the end armrest 9 via brackets. In addition, at the rear side of the partition portion 5, a horizontal armrest portion 36 extending in the left-right direction and a vertical armrest portion 35 extending in the vertical direction are connected together in a substantially L shape. The lower end of the vertical armrest portion 35 is fixed to the floor surface of the vehicle compartment 2. The right end of the horizontal armrest portion 36 is connected to the end armrest 9 or fixed to the vehicle body frame in a manner separated from the end armrest 9. Thus, the horizontal armrest portion 36 is fixed inside the vehicle compartment 2.

[0031] Figure 3 It is a perspective view showing a part of the horizontal armrest portion 36, which is fixed to the wall portion 4 via a reinforcing bracket 37, in a manner omitting the partition portion. The middle portion in the left-right direction as the extending direction of the horizontal armrest portion 36 is fixed to the wall portion 4 via the reinforcing bracket 37. The reinforcing bracket 37 is a tubular member bent into a substantially S shape, and is fixed between the front side surface on the wall portion 4 side of the horizontal armrest portion 36 and the wall portion 4. The combined side end portion 38 of the reinforcing bracket 37 with respect to the horizontal armrest portion 36 extends in the front-rear direction orthogonal to the extending direction of the horizontal armrest portion 36. More specifically, the flange 39 provided at one end of the reinforcing bracket 37 is screwed to the frame structure 7 of the wall portion 4. On the other hand, at the middle portion in the left-right direction of the horizontal armrest portion 36, a fitting portion of a T-shaped connecting portion 69 is fixed, and the combined side end portion 38 of the armrest reinforcing bracket 37 is inserted and fixed into an insertion port branching from the fitting portion of the connecting portion 69 in the orthogonal front-rear direction. The armrest reinforcing bracket 37 is fixed to the frame structure 7 via a hole 5a formed in the partition portion 5 ( Figure 2 ).

[0032] The end armrest 9 is used for a passenger to hold with the hand to maintain the posture. The end armrest 9 is also used for fixing the wheelchair 80 using the first belt B1. The horizontal armrest portion 36 is used for supporting the backrest 40 as described later.

[0033] As Figures 4 to 7 shown, the backrest structure 30 is configured to include the above-mentioned horizontal armrest portion 36 and the backrest 40. The backrest 40 has a cushion portion 41 and a reinforcing tube 50 embedded in the cushion portion 41. In Figure 5Among them, the reinforcing pipe 50 is indicated by the slanted part. The cushion part 41 is in the shape of a substantially vertically long block, and has a groove part 42 extending across the entire length in the left - right direction at the middle part in the up - down direction on the front side surface thereof. In addition, as will be described later, when the backrest 40 is supported on the horizontal armrest part 36, the position of the backrest 40 is fixed.

[0034] On the rear side surface of the cushion part 41, a concave part 46 that is recessed in a curved shape toward the center in the left - right direction is formed across the entire length in the up - down direction. Thereby, it is easy for the spinal part 101 of the wheelchair user 100 to sink into the concave part 46, and thus it is possible to suppress the situation where the spinal part 101 is displaced to the left and right with respect to the backrest 40. The "spinal part" refers to the spine of the wheelchair user 100 itself, or refers to a part including the spine and a backrest provided at the side end of the spine of the wheelchair 80 and capable of pressing against the spine of the wheelchair user 100.

[0035] The cushion part 41 is formed of a soft material, for example, a sponge material made of a foamed resin such as polyurethane. The cushion part 41 may also be configured such that a cover having elasticity and being substantially entirely in close contact covers the surface of the sponge material. The cover may also be configured, for example, as a structure woven from elastic threads such as polyurethane elastic fibers.

[0036] The groove part 42 provided on the cushion part 41 has a concave - shaped part 43 that opens on the front surface and both left - right end surfaces of the cushion part 41 and extends in the left - right direction at the upper end. The cross - sectional shape of the concave - shaped part 43 orthogonal to the left - right direction is substantially U - shaped and opens downward. Thus, as Figure 4 、 Figure 5 shown, the horizontal armrest part 36 can be locked inside the concave - shaped part 43, and the backrest 40 can be supported on the horizontal armrest part 36 in a detachable manner.

[0037] In addition, the cushion part 41 has a bracket locking groove 45, which is formed at the front - side part as the wall - part side and connects the front - side end of the cushion part 41 and the concave - shaped part 43 in the front - rear direction. The cross - sectional shape of the bracket locking groove 45 orthogonal to the front - rear direction is substantially U - shaped opening downward and extends in the front - rear direction. Since the coupling side end part 38 is locked in the bracket locking groove 45, as will be described later, it is possible to suppress the situation where the backrest 40 is displaced in the extending direction of the horizontal armrest part 36.

[0038] As Figures 5 to 7As shown, the reinforcing tube 50 is embedded near the inner surface of the concave-shaped portion 43 inside the cushion portion 41. The reinforcing tube 50 is formed by bending a metal tube such as iron, and includes two first U-shaped portions 51 at both ends, a second U-shaped portion 52 in the middle, and two straight portions 53 connecting the two U-shaped portions 51 and 52. The first U-shaped portion 51 has a shape that opens downward in a manner that generally follows the inner surface of the concave-shaped portion 43 and spans the concave-shaped portion 43. Therefore, since the shape of the concave-shaped portion 43 is made easy to maintain by the first U-shaped portion 51, it is difficult for the backrest 40 to fall off the horizontal armrest portion 36 when the concave-shaped portion 43 is locked to the horizontal armrest portion 36.

[0039] The second U-shaped portion 52 has a shape that opens downward in a manner that generally follows the inner surface of the bracket locking groove 45 and spans the bracket locking groove 45. Therefore, since the shape of the bracket locking groove 45 is made easy to maintain by the second U-shaped portion 52, it is difficult for the bracket locking groove 45 to come out of the coupling side end portion 38 when the bracket locking groove 45 is locked to the coupling side end portion 38 of the armrest reinforcing bracket 37.

[0040] In addition, at the upper part of the front surface of the cushion portion 41, two storage portions 47 and 48, which are longitudinal rectangular holes, are formed. In one of the two storage portions 47 and 48, the first belt B1, which will be described later and is used to fix the wheelchair 80 to the vehicle 1, can be stored. In the other of the two storage portions 47 and 48, the second belt B2, which will be described later and is used to fix the wheelchair user 100 to the wheelchair 80 when the wheelchair 80 is fixed to the vehicle 1, can be stored. The cushion portion 41 also includes a protruding portion 49 that protrudes outward in a manner that contacts the wall portion 4 at the lower side portion of its front side surface.

[0041] When the wheelchair user 100 boards the vehicle 1, before the wheelchair user 100 boards, the staff of the bus operating company such as the driver will carry the backrest 40 into the wheelchair placement space S2 in advance and support the backrest 40 on the cross armrest 36. At this time, after passing the front end opening of the groove portion 42 of the backrest 40 through the cross armrest 36, the concave portion 43 is locked on the cross armrest 36 from above. In addition, at the same time, the bracket locking groove 45 is locked on the joint side end portion 38 of the armrest reinforcement bracket 37 from above. In this state, the left and right ends of the joint side end portion 38 of the armrest reinforcement bracket 37 are in contact with the left and right sides of the bracket locking groove 45. Thus, by locking the joint side end portion 38 in the bracket locking groove 45, the situation where the backrest 40 moves offset in the extending direction of the cross armrest 36 can be suppressed. In addition, there is no need to provide a dedicated component on the vehicle 1 to suppress the movement of the backrest 40 in the extending direction of the cross armrest 36. In addition, the front side surface of the backrest 40 is in contact with the rear side surface of the partition plate portion 5. Thus, in the state where the backrest 40 is supported on the cross armrest 36, the position of the backrest 40 is fixed.

[0042] In this state, the wheelchair user 100 sitting on the wheelchair 80 boards the vehicle in a state facing the rear of the vehicle in the wheelchair placement space S2 and presses the back 101 against the backrest 40. The backrest 40 can either directly receive the back of the wheelchair user 100 or receive the back of the wheelchair user 100 via the backrest provided on the wheelchair 80.

[0043] In addition, in a state where the left and right wheels 81 of the wheelchair 80 are pressed against the lower side surface of the partition plate portion 5, the left armrest of the wheelchair 80 is fixed to the end armrest 9 via the first belt B1. The loop portion provided at one end of the first belt B1 is placed on the end armrest 9, and the loop portion provided at the other end of the first belt B1 is placed on the left armrest of the wheelchair 80. By adjusting the length of the first belt B1, the first belt B1 is stretched between the end armrest 9 and the wheelchair 80. In addition, the periphery of the trunk of the wheelchair user 100 is fixed to the wheelchair 80 by the second belt B2 that is annularly placed outside the left and right handle shafts 83 of the wheelchair 80. By this second belt B2, the posture of the wheelchair user 100 is maintained.

[0044] On the other hand, when the wheelchair user 100 does not board the vehicle 1, the first and second belts B1, B2 and the backrest 40 are detached from the vehicle 1 or the wheelchair 80, and the belts B1, B2 are stored in the storage portions 47, 48 of the backrest 40. And the backrest 40 is stored in a component chamber provided in the vehicle, or a storage place of a bus operation company, etc. Thus, since the backrest 40 can be removed from the wheelchair configuration space S2, by enabling more passengers to board the wheelchair configuration space S2, the effective utilization of the space inside the vehicle compartment can be achieved. In addition, in this state, the lateral armrest portion 36 can also be used for passengers to hold with their hands to maintain their postures.

[0045] According to the above-described backrest structure 30, since the backrest 40 having the cushion portion 41 and being locked to the lateral armrest portion 36 can support the spine 101 of the wheelchair user 100, even when the movement of the vehicle 1 becomes large such as in the case of an emergency braking of the vehicle 1, the impact applied to the wheelchair user 100 can be alleviated by the backrest 40. In addition, the backrest 40 can be easily detached from the lateral armrest portion 36 by raising the backrest 40, and the backrest 40 can be easily attached to the lateral armrest portion 36 by locking the concave-shaped portion 43 to the lateral armrest portion 36. Thus, the backrest 40 can be easily disassembled and assembled with respect to the vehicle 1. In addition, since the lateral armrest portion 36 can be used for supporting the backrest 40 on the vehicle 1, there is no need to provide a dedicated component for supporting the backrest 40 on the vehicle 1. Thus, it is easy to reduce the cost of the backrest structure 30.

[0046] In addition, the backrest 40 has storage portions 47, 48 capable of storing the first belt B1 for fixing the wheelchair 80 to the vehicle 1 or the second belt B2 for maintaining the posture of the wheelchair user 100. Therefore, since the first belt B1 or the second belt B2 can be stored in the respective storage portions 47, 48 when the belts B1, B2 are not needed, and the belts B1, B2 and the backrest 40 can be stored integrally when the wheelchair user 100 does not board, the storage operation of the belts B1, B2 and the boarding preparation operation of the wheelchair user 100 can be facilitated. As Figure 5 shown, when the sizes of the storage portions 47, 48 are different, the longer belt among the belts B1, B2 can be stored in the larger storage portion 47, and the shorter belt can be stored in the smaller storage portion 48.

[0047] In addition, the bracket locking groove 45 is not limited to being formed at the center in the left-right direction of the backrest 40, and may be formed at a position offset from the center in the left-right direction of the backrest 40 to one side in the left-right direction.

[0048] Figure 8 A perspective view when observing the backrest structure 30a of another example of the embodiment from the front side of the vehicle in a manner of omitting the lower part of the backrest 40a. Figure 9 For the backrest structure 30a Figure 8 A sectional view taken along line B-B. In the structure of this example, the overall shape of the backrest 40a as observed from one side in the left-right direction is a substantially U-shaped opening downward. Thus, the backrest 40a has a concave-shaped portion 70 that opens downward and is engaged with the horizontal armrest portion 36. The backrest 40a is supported on the horizontal armrest portion 36 in a detachable manner at the upper part of the concave-shaped portion 70. At the front side portion which is the wall portion side of the backrest 40a, a bracket engaging groove 71 is formed with a lower end opening for connecting the front end of the backrest 40a and the concave-shaped portion 70 in the front-rear direction. The bracket engaging groove 71 is a substantially U-shaped that is longer in the up-down direction when observing the backrest 40 from the front side.

[0049] When engaging the backrest 40a with the horizontal armrest portion 36, the concave-shaped portion 70 of the backrest 40a is engaged with the horizontal armrest portion 36 from above, and the bracket engaging groove 71 of the backrest 40a is engaged with the engaging side end portion 38 extending in the front-rear direction orthogonal to the extending direction of the horizontal armrest portion 36 from the horizontal armrest portion 36 from above. In this example, the rear side surface of the partition plate portion 5b is along the up-down direction, and the front side surface of the backrest 40a is in contact with the rear side surface of the partition plate portion 5b. The storage portion for the belt of the backrest 40a is provided at an unillustrated position on the lower side of the backrest 40a. According to the structure of this example, the backrest 40a has a relatively simple shape. In this example, other structures and functions are the same as Figures 1 to 7 The structure is set in the same way.

[0050] In addition, as another example structure, it can also be set as a structure having only any one or two of the reinforcing pipe, the bracket engaging groove, and the storage portion in the backrests 40, 40a of the above examples.

[0051] In addition, although in the above examples, the case where the wheelchair user 100 rides in the vehicle in a state of sitting on the wheelchair 80 facing the rear of the vehicle has been described, the present disclosure is not limited thereto, and it can also be set as a structure in which the wheelchair user rides in the vehicle in a state of sitting on the wheelchair facing the front or the vehicle width direction of the vehicle. In this case, similarly to the above examples, the backrest is supported on the horizontal armrest portion by engaging the concave-shaped portion with the horizontal armrest portion extending in the horizontal direction. For example, when the wheelchair user rides in the vehicle width direction, the end armrest extending in the vehicle front-rear direction corresponds to the horizontal armrest portion, and the backrest is supported by engaging the concave-shaped portion of the backrest with the end armrest.

Claims

1. A vehicle backrest structure, comprising: A horizontal armrest portion, which is fixed in the vehicle compartment and extends in the horizontal direction; The backrest includes a cushion portion formed of a soft material and supports the back of a wheelchair user seated on the wheelchair while being supported in the vehicle compartment. The backrest has a concave portion that opens downward and is locked to the horizontal armrest portion, and the backrest is supported on the horizontal armrest portion in a detachable manner. The backrest includes a reinforcing pipe that is embedded in the cushion portion and has a shape that opens downward along an inner surface of the concave portion.

2. A vehicle backrest structure, comprising: A horizontal armrest portion, which is fixed in the vehicle compartment and extends in the horizontal direction; The backrest includes a cushion portion formed of a soft material and supports the back of a wheelchair user seated on the wheelchair while being supported in the vehicle compartment. The backrest has a concave portion that opens downward and is locked to the horizontal armrest portion, and the backrest is supported on the horizontal armrest portion in a detachable manner. The vehicle backrest structure further includes an armrest reinforcement bracket, the armrest reinforcement bracket being fixed between the side surface of the vehicle wall portion in the transverse armrest portion and the wall portion, and an end portion of the armrest reinforcement bracket on the side connected to the transverse armrest portion extends in a direction orthogonal to an extension direction of the transverse armrest portion. The backrest has a bracket locking groove which opens at a lower end at the wall side portion and connects the wall side end of the backrest and the concave portion and is locked with the joint side end of the armrest reinforcement bracket.

3. The vehicle backrest structure according to claim 1 or claim 2, in, The backrest has a storage portion capable of storing a belt for fixing the wheelchair.

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