JP5797682B2 - wheelchair - Google Patents

Description

  The present invention relates to a wheelchair, and more particularly to a wheelchair suitable for use by a person who has a physical disability and needs assistance (hereinafter referred to as a person requiring assistance) during bathing.

  2. Description of the Related Art Conventionally, wheelchairs (bathing wheelchairs) have been developed so that elderly persons, persons with physical disabilities and the like who need assistance can enter a bathtub without getting off the wheelchair (see, for example, Patent Documents 1 and 2). Such a bathing wheelchair is usually designed in accordance with the configuration of a bathing apparatus used in combination with the wheelchair.

JP 2006-167314 A Japanese Patent Laid-Open No. 10-277119

  By the way, the present applicant has developed a bathing apparatus suitable for use for small-scale multifunctional home care facilities and home use, for example. This bathing apparatus has been developed with the in mind that it can be used comfortably not only by moderate to severe caregivers but also by mild caregivers and healthy people. Small-scale multifunctional home care facilities are centered on “commuting (day service)” and “visiting (visiting care)” or “staying (short stay)” as needed depending on the condition and wishes of the person requiring assistance. It is a facility that provides a combination of services. It is assumed that such facilities are used by people who require mild to severe assistance.

  In the development of the bathing device as described above, a bathing wheelchair that is used in combination with the bathing device is required to have a structure that can be easily operated by an assistant standing next to the bathing wheelchair. It was. In addition, a structure in which an assistant can easily work is required even when the assistant is transferred to a bathing wheelchair.

  In view of the above points, an object of the present invention is to provide a wheelchair that can be comfortably used by an assistant. Another object of the present invention is to provide a wheelchair having a structure suitable as a wheelchair for bathing.

  In order to achieve the above object, a wheelchair according to the present invention is a wheelchair comprising a chair portion having a seating surface, and a frame portion that supports the chair portion and to which traveling wheels are attached. Includes a pair of connecting bars that connect different front and rear wheels, and the pair of connecting bars has a structure indented inward on at least one of the left and right side surfaces of the wheelchair. (First configuration). In addition, each connection bar which comprises a pair of connection bar may be comprised by one, and may be comprised by multiple.

  In this configuration, since the connecting bar that connects the front and rear wheels has a structure recessed inside the wheelchair, an assistant working on the side of the wheelchair can work without being obstructed by the connecting bar. it can.

  In the wheelchair having the first configuration, the pair of connection bars respectively connect front and rear wheels on the same side in the left-right direction, and at least one of the pair of connection bars is inside the wheelchair. The configuration may be a configuration (second configuration) that is recessed toward the surface. According to this configuration, the structure of the traveling unit frame can be easily made symmetrical and easy to manufacture.

  In the wheelchair having the second configuration described above, it is preferable that the connection bar having the recessed structure has a configuration (third configuration) that is curved in a dogleg shape. According to this configuration, it is not necessary to introduce a plurality of bends in the connecting bar, and it is easy to manufacture the connecting bar.

  In the wheelchair having any one of the first to third configurations, the pair of connecting bars has a configuration (fourth configuration) that is provided in line symmetry with respect to a central plane that divides the wheelchair into left and right parts. Preferably employed. According to this configuration, the assistant can easily perform work on the left and right side surfaces of the wheelchair. That is, according to this structure, the versatility of a wheelchair increases.

  In the wheelchair having any one of the first to fourth configurations, the frame portion includes a vertical bar extending in the vertical direction and having a wheel attached to a lower end thereof, and the vertical bar to which a front wheel is attached includes A configuration (fifth configuration) in which a footrest portion that is rotatable around the vertical bar is attached may be employed. According to this configuration, the caregiver can prevent the footrest portion from getting in the way when, for example, the person requiring assistance is transferred from the bed or the like to the wheelchair or when the person requiring assistance is transferred from the wheelchair to the bed or the like. You can rotate the part. And in this structure, since it has the structure where the connection bar which connects a front-and-rear wheel was dented, it is easy to accommodate the footrest part rotated so that it might not interfere with work under a chair part.

  The wheelchair having any one of the first to fifth configurations is used in combination with a bathing apparatus including a base portion and a chair mounting portion movable in the vertical direction and the horizontal direction with respect to the base portion. In the configuration in which the chair portion is provided with an engagement portion that engages with the chair mounting portion, and the chair portion and the frame portion are separable (sixth configuration). Preferably there is. In such a configuration, when the chair part separated from the frame part and engaged with the chair mounting part is moved in the horizontal direction, the separated frame part may become an obstacle. However, since the connection bar has a structure recessed inward, the possibility that the frame portion after separation interferes with the work of the assistant can be reduced.

  ADVANTAGE OF THE INVENTION According to this invention, the wheelchair which an assistant can use comfortably can be provided. Moreover, according to this invention, a wheelchair provided with a structure suitable as a wheelchair for bathing can be provided.

Schematic perspective view showing the configuration of the wheelchair developed in the prior art Schematic plan view of the bathing device and bathtub used in a set with a previously developed wheelchair as seen from above Schematic plan view of the bathing device and bathtub used in a set with a previously developed wheelchair as seen from the side A diagram for explaining a series of operations performed when a person requiring assistance is bathed using a wheelchair developed in advance. A diagram for explaining a series of operations performed when a person requiring assistance is bathed using a wheelchair developed in advance. A diagram for explaining a series of operations performed when a person requiring assistance is bathed using a wheelchair developed in advance. The schematic perspective view which shows the structure of the wheelchair which concerns on embodiment of this invention. The schematic perspective view which shows the structure of the driving | running | working flame | frame part with which the wheelchair which concerns on embodiment of this invention is provided. The figure which shows the state in which the pair of footrest part was rotated outward in the wheelchair which concerns on embodiment of this invention. The figure which shows the state in which each footrest part of a pair of footrest part was flipped up in the wheelchair which concerns on embodiment of this invention. The wheelchair which concerns on embodiment of this invention WHEREIN: The figure which shows the state in which each footrest part was flipped up while a pair of footrest part was rotated outward.

Hereinafter, a wheelchair according to an embodiment of the present invention will be described in detail with reference to the drawings. In order to facilitate understanding of the wheelchair of the present invention, prior to the description of the wheelchair according to the embodiment of the present invention, points to be improved in the previously developed wheelchair will be described. In addition, in the following explanation, the front side of the wheelchair as viewed from the seated person sitting in the wheelchair (the person who needs assistance) is the front side of the wheelchair, and the back side of the seated person is the back side of the wheelchair. The right side when viewed from the right side is the right side of the wheelchair, and the left side when viewed from the seated person is the left side of the wheelchair.
<Points to be improved in the wheelchair developed earlier>

  FIG. 1 is a schematic perspective view showing a configuration of a wheelchair 100 developed in advance. The previously developed wheelchair 100 is a bathing wheelchair. The structure of the bathing apparatus used in pairs with the wheelchair 100 will be described later. The wheelchair 100 generally includes a chair portion 110 having a seating surface, and a traveling frame portion 120 that supports the chair portion 110 and has traveling wheels attached thereto. The chair part 110 and the traveling frame part 120 are separable. FIG. 1A shows a state in which the chair part 110 and the traveling frame part 120 are combined, and FIG. 1B shows the chair part 110 and the traveling frame. The state which the part 120 isolate | separated is shown.

  The chair portion 110 includes a seat surface portion 111 including a seat surface on which the seated person places the buttocks, and a backrest portion 112 that serves as the backrest of the seated person. The seat surface portion 111 and the backrest portion 112 are supported by a chair frame 113 provided in the chair portion 110. The chair frame 113 is provided with, for example, a pair of handrails 114 a and 114 b that are rotatably provided, and can be stored in the lower side of the seat surface portion 111 and pulled out in the horizontal direction from the lower side of the seat surface portion 111. A leg support 115 or the like to be attached is attached.

  In addition, a pair of engagement hooks 116a and 116b are provided on the left and right of the upper portion of the rear surface side (back surface side) of the chair portion 110. Each of the pair of engagement hooks 116a and 116b is shaped such that the L-shape is turned upside down when viewed from the side. The pair of engagement hooks 116 a and 116 b are fixed to the chair frame 113.

  In addition, an engagement portion 117 in which an elongated hole-shaped engagement hole 117 a extending in the left-right direction is formed behind the seat surface portion 111 constituting the chair portion 110. The engaging portion 117 in which the engaging hole 117a is formed may be formed integrally with the seating surface portion 111 or may be provided as a separate member from the seating surface portion 111.

  Four traveling wheels 130 a to 130 d constituted by two front wheels and two rear wheels are attached to the lower side of the traveling frame portion 120. The traveling frame portion 120 includes a right connection bar 121a (configured with two in this example) that connects the right front wheel 130a and the right rear wheel 130b. The traveling frame unit 120 also includes a left connecting bar 121b (configured with two in this example) that connects the left front wheel 130c and the left rear wheel 130d. Both of the pair of connecting bars 121a and 121b are straight in the front-rear direction.

  The pair of connecting bars 121a and 121b are connected by bridging bars 122a and 122b provided at the front and rear. A substantially inverted U-shaped engagement frame 123 is erected on the rear bridge bar 122b. Further, a pair of footrest portions 140 a and 140 b on which a seated person puts his / her foot is attached in front of the traveling frame portion 120.

  When the chair part 110 and the traveling frame part 120 are combined, the engagement frame 123 is fitted in the engagement hole 117a of the chair part 110, and the chair part 110 is mounted on the support frame 124 of the traveling frame part 120. Will be placed. In this combined state, the chair portion 110 is prevented from floating from the traveling frame portion 120 by a lift prevention mechanism (not shown) provided in front of the wheelchair 100. In addition, disk-shaped positioning engagement portions 150a and 150b are provided on the right and left front and rear wheels 130a and 130b, respectively. The operation of the positioning engagement portions 150a and 150b will be described later.

  Next, a configuration example of a bathing apparatus and a bathtub used as a set with the wheelchair 100 developed in advance will be described. FIG. 2 is a schematic plan view of a bathing apparatus 200 and a bathtub 300 used as a set together with a previously developed wheelchair 100 as viewed from above. FIG. 3 is a schematic plan view of the bathing apparatus 200 and the bathtub 300 used in combination with the wheelchair 100 developed in advance, as viewed from the side. In addition, in FIG. 3, the floor F of the bathroom in which the bathing apparatus 200 and the bathtub 300 are arrange | positioned, and the wall W are shown together. And the part which is not actually seen by the floor F and the wall W is shown with the dashed-dotted line.

  As shown in FIG.2 and FIG.3, the bathing apparatus 200 is arrange | positioned so that it may rank with the longitudinal direction of the bathtub 300 provided in planar view substantially rectangular shape. The bathing apparatus 200 is provided with a chair mounting part 210 to which the chair part 110 of the wheelchair 100 can be attached and detached. As will be described later, the chair mounting portion 210 is movable in the vertical direction and the horizontal direction. FIG. 2A and FIG. 2B differ in the position of the chair mounting portion 210 in the horizontal direction (specifically, the short direction (X direction) of the bathtub 300). Moreover, the position of the up-down direction (Y direction) of the chair attachment part 210 differs in Fig.3 (a) and FIG.3 (b).

  The bathing apparatus 200 includes a base portion 220 that is fixedly arranged. The bathing apparatus 200 includes an elevating unit 230 that can move in the vertical direction with respect to the base unit 220. Furthermore, the bathing apparatus 200 includes a slide part 240 that can slide in the horizontal direction (specifically, move in the X direction) with respect to the elevating part 230. The chair attachment portion 210 is attached to the slide portion 240. For this reason, the chair mounting portion 210 is movable in the vertical direction and the horizontal direction with respect to the base portion 220.

  In addition, the raising / lowering part 230 may be provided with the lift mechanism which uses a hydraulic device etc., for example, and is comprised so that it may raise / lower automatically by operating an operation part (remote controller etc.) in this example. Moreover, the slide part 240 may be provided with a slide mechanism using a rail, for example, and is a manual type in this example. In this example, the slide unit 240 includes a first slide moving unit 241 that slides on a rail (not shown) provided on the elevating unit 230, and a rail (not shown) provided on the first slide moving unit 241. And a second slide moving unit 242 that slides relative to each other. For this reason, the chair mounting part 210 can be pulled out in multiple stages. However, this is an example, and the slide unit 240 may be configured by only one slide moving unit, or may be configured by three or more slide moving units.

  The bathtub 300 is provided in a rectangular parallelepiped shape and includes a recessed space 310 surrounded by an inner wall 311 and an inner bottom wall 312. By storing hot water in the recessed space 310, the bather can be immersed in the hot water (take a bath). The method of storing hot water in the recessed space 310 is not particularly limited, but in this example, hot water can be stored in the recessed space 310 by discharging the hot water from the tap T provided on the wall W of the bathroom (FIG. 3). The inner bottom wall 312 is provided with a discharge port 313 for discharging hot water accumulated in the recessed space 310 to the outside.

  In this example, the area in which the bathtub 300 is disposed has a bottom surface B lower than the floor F of the bathroom, and the bathtub 300 is fixedly disposed on the bottom surface B. For this reason, since the height from the floor F of the bathtub 6 can be lowered | hung, the bather (here, the bather who does not use the wheelchair 100 is assumed) can bathe on the side wall of the bathtub 300 without difficulty. In this example, the base part 220 constituting the bathing apparatus 200 is also fixedly arranged on the bottom surface B.

  In addition, the outer wall 320 in the longitudinal direction of the bathtub 300 is provided with a pair of groove portions 321a and 321b. The pair of groove portions 321 a and 321 b exhibit a function of positioning the position of the wheelchair 100 in cooperation with the pair of positioning engagement portions 150 a and 150 b provided in the wheelchair 100.

  Next, a series of operation examples in the case where a person who needs assistance in a wheelchair 100 developed in advance takes a bath using the bathing apparatus 200 and the bathtub 300 will be described. FIGS. 4-6 is a figure for demonstrating a series of operation | movement performed when all require a bather to bathe using the wheelchair 100 developed prior. A series of operations proceeds in the order of FIG. 4, FIG. 5, and FIG.

  First, the wheelchair 100 on which the assistant M who needs assistance is carried is carried to the bathroom by the assistant. And the right side surface of the wheelchair 100 is arrange | positioned so that the outer side wall 320 of the longitudinal direction of the bathtub 300 may be opposed. The wheelchair 100 is positioned by fitting the pair of positioning engagement portions 150 a and 150 b provided in the wheelchair 100 into the pair of grooves 321 a and 321 b provided in the bathtub 300. FIG. 4 shows a state in which this positioning is performed.

  At the stage where the wheelchair 100 is brought into the bathroom, the foot receiving portion 115 is stored below the seat surface portion 111. The foot receiving portion 115 may be pulled out from the lower side of the seating surface portion 111 at the stage where the above-described positioning is performed, for example. In this example, in conjunction with the drawer of the foot support 115, the above-described lifting prevention mechanism releases the lifting prevention so that the chair 110 and the traveling frame 120 can be separated. It has become.

  Next, the assistant uses the slide part 240 to pull out the chair mounting part 210 toward the front side (the state shown in FIG. 2B corresponds). Then, the assistant raises the elevating unit 230 by operating an operation unit (not shown) such as a remote controller. Thereby, the chair attachment part 210 also raises and the chair attachment part 210 and a pair of engagement hooks 116a and 116b start engagement. As the chair mounting portion 210 continues to rise, the chair portion 110 is lifted, and the chair portion 110 and the traveling frame portion 120 are separated. FIG. 5 shows this separation state.

  In addition, when the chair part 110 is attached to the chair attaching part 210, it is preferable that a lock mechanism is provided so that the chair part 110 may not fall off from the chair attaching part 210.

  When the chair part 110 on which the person requiring assistance M is placed is lifted to a predetermined height (a position higher than the upper surface of the bathtub 300), the assistant uses the slide part 240 to attach the chair part 110. Push the chair mounting part 210 into the back side. Then, the assistant operates the operation unit such as a remote controller to lower the elevating unit 230. When the chair part 110 is lowered to a predetermined position together with the chair attachment part 210, the person requiring assistance M is moved into the recessed space 310 in which hot water is stored. FIG. 6 shows this state. In addition, when the assistance person M required is carried out of the recessed space 310 of the bathtub 300, the operation opposite to the above is performed.

  As described above, by using the wheelchair 100 and the bathing apparatus 200, which are developed in advance, for example, a moderate to heavy assistant can be easily immersed in the hot water in the bathtub 300. On the other hand, the chair mounting part 210 of the bathing apparatus 200 has an annular structure extending in a direction parallel to the sliding direction by the sliding part 240. For this reason, there is little quantity which protrudes in the bathtub 300 side, and it does not give a feeling of oppression to the light care assistant who does not use the wheelchair 100, and a healthy person. Furthermore, the chair attachment portion 240 can be used as a handrail with the chair portion 110 removed. For this reason, the bathing apparatus 200 is easy to use even for a light assistant or the like.

By the way, as can be seen from the above description, when a person requiring assistance sitting in the chair portion 110 takes a bath, the assistant (located on the left side of the wheelchair 100) is in a state where the traveling frame portion 120 is present at the foot. It is necessary to push the slide part 240 inward (see FIG. 5). At this time, it is considered that the assistant may have a problem that it is difficult to push the slide portion 240 because the left connecting bar 121b of the traveling frame portion 120 interferes. Of course, if the traveling frame portion 120 is not in front of the bathtub 300 before the slide portion 240 is pushed in, the above-described problem of difficulty in pushing does not occur. However, if it is necessary to move the traveling frame unit 120 one by one, the assistant may feel troublesome. Further, when the traveling frame unit 120 is moved, there is a possibility that the placement position when the traveling frame unit 120 is returned becomes an incorrect position. If the traveling frame portion 120 is disposed at an inappropriate position, the chair portion 110 and the traveling frame portion 120 cannot be combined successfully, and there is a concern that an accident may occur. For this reason, it is not preferable that the traveling frame unit 120 is not in front of the bathtub 300. In view of such a point, the wheelchair of the present invention is an improvement of the wheelchair.
<Wheelchair according to an embodiment of the present invention>

  FIG. 7 is a schematic perspective view showing the configuration of the wheelchair 1 according to the embodiment of the present invention. The wheelchair 1 which concerns on this embodiment is a wheelchair for bathing, and the bathing apparatus 200 and the bathtub 300 which were mentioned above are assumed as a bathing apparatus and bathtub used by the said wheelchair 1 and a pair. In addition, it is not the meaning which excludes using the wheelchair 1 combining with another bathing apparatus and a bathtub.

  The wheelchair 1 of the present embodiment generally includes a chair portion 10 having a seating surface, and a traveling frame portion 20 that supports the chair portion 10 and has wheels for traveling attached thereto, and the structure thereof is advanced. There are many parts similar to the wheelchair 100 of development. Similar to the wheelchair 100 of the prior development, the chair portion 10 and the traveling frame portion 20 are separable. In the following, a detailed description of the same configuration as that of the previously developed wheelchair 100 will be omitted unless it is particularly necessary.

  The chair part 10 has substantially the same configuration as the chair part 110 in the wheelchair 100 of the prior development. The chair portion 10 includes a seat surface portion 11 (including a seat surface) and a backrest portion 12. Further, the chair portion 10 is provided with a foot receiving portion 14 provided so as to be able to be put in and out under the pair of handrails 13 a and 13 b and the seat surface 11. In addition, a pair of engagement hooks (not shown) that engage with the chair attachment portion 210 of the bathing apparatus 200 are provided on the upper left and right sides on the rear surface side of the chair portion 10. Further, behind the seat surface portion 11 constituting the chair portion 10, an engagement portion (both not shown) in which an elongated hole-shaped engagement hole extending in the left-right direction is formed.

  FIG. 8 is a schematic perspective view showing the configuration of the traveling frame unit 20 provided in the wheelchair 1 according to the embodiment of the present invention. On the lower side of the traveling frame portion 20, four traveling wheels 30 a to 30 d constituted by two front wheels and two rear wheels are attached. The traveling frame portion 20 includes a right connection bar 21a that connects the right front wheel 30a and the right rear wheel 30b. The traveling frame portion 20 also includes a left connecting bar 21b that connects the left front wheel 30c and the left rear wheel 30d.

  Each of the pair of connection bars 21a and 21b has a structure that is bent in a U shape and is recessed toward the inside of the wheelchair 1. Further, the pair of connecting bars 21a and 21b are provided symmetrically with respect to a central plane that divides the wheelchair 1 into left and right halves. For this reason, when the traveling frame portion 20 is viewed from above, the pair of connecting bars 21a and 21b appear to be substantially X-shaped. However, in this embodiment, the two connecting bars 21a and 21b are not attached to each other and are separated from each other.

  The pair of connecting bars 21a and 21b are connected by bridging bars 22a and 22b provided at the front and rear. A substantially inverted U-shaped engagement frame 23 is erected on the rear bridge bar 22b. When the chair unit 10 and the travel frame unit 20 are combined, the engagement frame 23 is fitted in a long hole-shaped engagement hole (not shown) provided in the chair unit 10, and the chair unit 10 is in the travel frame. It will be in the state mounted on the support frame 24 of the part 20. FIG. In this combined state, the chair portion 10 is prevented from floating from the traveling frame portion 20 by a lift prevention mechanism (not shown) provided in front of the wheelchair 1.

  The traveling frame unit 20 includes vertical bars 25a to 25d that extend straight in the vertical direction (vertical direction) and have wheels 30a to 30d attached to the lower ends. The right connecting bar 21a has a front end attached to the right front vertical bar 25a and a rear end attached to the right rear vertical bar 25b. The front end of the left connecting bar 21b is attached to the left front vertical bar 25c, and the rear end thereof is attached to the left rear vertical bar 25d.

  Footrest portions 40a and 40b are attached to the front left and right vertical bars 25a and 25c, respectively. The right footrest portion 40a includes a right connecting arm 41a attached to the right front vertical bar 25a and a right footrest portion 42a attached to the right connecting arm 41a. The left footrest portion 40b includes a left connecting arm 41b attached to the left front vertical bar 25b and a left footrest portion 42b attached to the left connecting arm 41b.

  The connecting arms 41a and 41b are attached to the vertical bars 25a and 25c so as to be rotatable about the vertical bars. In the present embodiment, the connecting arms 41a and 41b (in other words, the footrest portions 40a and 40b) are rotatable in both the outward direction and the inward direction. FIG. 9 is a diagram illustrating a state in which the pair of footrest portions 40a and 40b are rotated outward in the wheelchair 1 according to the embodiment of the present invention.

  Further, each footrest portion 42a, 42b is rotatably attached to each connecting arm 41a, 41b, and can be flipped up so that its footrest surface is substantially perpendicular to the vertical direction (vertical direction). (See FIG. 10). FIG. 10 is a diagram illustrating a state in which the footrest portions 42a and 42b of the pair of footrest portions 40a and 40b are flipped up in the wheelchair 1 according to the embodiment of the present invention.

  The connecting arms 41a and 41b and the footrests 42a and 42b are preferably configured to be locked at predetermined positions. As the predetermined position, for example, a position where a seated person sitting on the chair portion 10 of the wheelchair 1 can easily place his / her foot is applicable. There may be a plurality of predetermined positions.

  In addition, on the front and rear wheels 30a, 30b on the right side of the wheelchair 1, disc-like positioning engagement portions 50a, 50b are provided, respectively. The positioning engagement portions 50a and 50b engage with a pair of groove portions 321a and 321b (see FIG. 3) provided on the side surface 320 of the bathtub 300. The positioning engagement portion may be provided on the left side of the wheelchair 1.

  In the wheelchair 1 provided as described above, in the case where a person requiring assistance sitting in the chair portion 10 is bathed in the recessed space 310 of the bathtub 300 using the bathing device 200, an improvement over the previously developed wheelchair 100 can be achieved. That is, since the left connecting bar 21b (the bar connecting the front and rear wheels) provided in the traveling frame portion 20 is recessed toward the inside of the wheelchair 1, the assistant places the slide portion 240 on the back side. When pushed in, the left connecting bar 21b is unlikely to disturb the operation of the assistant. For this reason, the assistant can step on his / her foot toward the bathtub as compared with the wheelchair 100 developed in the prior art, and can easily push in the slide portion 240. This advantage is also applicable, for example, when the chair portion 10 on which a person requiring assistance is placed is pulled out from the back side to the front side (operation at the end of bathing).

  In the wheelchair 1 of the present embodiment, as described above, the left and right connecting bars 21a and 21b are provided in line symmetry. For this reason, the direction in which the slide part 240 of the bathing apparatus 200 is pulled out is opposite to the above-described configuration (in this case, the wheelchair 1 is opposed to the side surface opposite to the side surface 320 of the bathtub 300. The above-mentioned convenience for the caregiver can be obtained. That is, according to this configuration, it is not necessary to prepare two versions of wheelchairs for left and right, and therefore, manufacturing management is easy.

  Further, since the pair of connecting bars 21a and 21b has a structure recessed toward the inside of the wheelchair 1, when the footrest portions 40a and 40b are rotated outward, the footrest portions 40a and 40b are chairs. The state which accommodates under the part 10 and the footrest part 40a, 40b jumps out from the right-and-left side surface can be suppressed. In addition, this effect becomes remarkable by setting the footrests 42a and 42b of the footrest portions 40a and 40b to be flipped up (see FIG. 11). FIG. 11 is a diagram illustrating a state in which the footrest portions 42a and 42b are flipped up while the pair of footrest portions 40a and 40b are rotated outward in the wheelchair 1 according to the embodiment of the present invention.

For example, when a person requiring assistance is transferred from the bed to the wheelchair 1 or when transferring from the wheelchair 1 to the bed, the footrest portions 40a and 40b are an obstacle to the assistant. Although the footrest portions 40a and 40b may be rotated inward, the convenience of the assistant is improved by being able to rotate outward. And in such a case, according to the structure of this embodiment, since the footrest parts 40a and 40b can be made not to take space more than necessary, it is convenient. In addition, it is preferable that the footrest parts 40a and 40b can rotate inward. For example, there may be a case where the space on the spot is narrow and the footrest portions 40a and 40b cannot be rotated outward, and in such a case, the footrest portions 40a and 40b are rotated inward to form the chairrest portions 40a and 40b. It is convenient if it can be accommodated under 10.
<Others>

  The embodiment described above is an exemplification of the present invention, and the scope of application of the present invention is not limited to the configuration of the embodiment described above. Various modifications can be made without departing from the technical idea of the present invention.

  For example, in the embodiment described above, both the right connection bar 21 a and the left connection bar 21 b are recessed toward the inside of the wheelchair 1. However, the present invention is not limited to this configuration, and only one of the left and right connecting bars 21a and 21b may be recessed toward the inside of the wheelchair 1. In addition, each connection bar 21a, 21b may be one, but there may be multiple.

  Moreover, in embodiment shown above, it was set as the structure where the connection bars 21a and 21b dent toward the inner side of the wheelchair 1 by curving the connection bars 21a and 21b in the shape of a dogleg. However, the present invention is not limited to this configuration, and the connecting bar may be bent differently as long as a structure that is recessed toward the inside of the wheelchair 1 is obtained.

  Moreover, in embodiment shown above, the connection bar which connects a front wheel and a rear wheel was set as the structure which connects the wheel on the same side in the left-right direction. However, the present invention is not limited to this configuration, and the connecting bar may connect wheels on opposite sides. As an example of such a structure, there is a configuration in which two straight bars are crossed to connect the right front wheel 30a and the left rear wheel 30d and to connect the left front wheel 30c and the right rear wheel 30b. Also in this case, a structure in which a pair of connecting bars for connecting different front and rear wheels is recessed toward the inside of the wheelchair 1 is obtained.

  In addition, although this invention is suitable with respect to the wheelchair for bathing, of course, you may apply to the wheelchair used for another use.

DESCRIPTION OF SYMBOLS 1 Wheelchair 10 Chair part 11 Seat surface part 20 Traveling frame part (frame part)
21a Right connection bar (one of a pair of connection bars)
21b Left connecting bar (the other of a pair of connecting bars)
25a Right front vertical bar 25c Left front vertical bar 30a Right front wheel (wheel)
30b Right rear wheel (wheel)
30c Left front wheel (wheel)
30d Left rear wheel (wheel)
40a Right footrest part 40b Left footrest part 200 Bathing device 210 Chair attachment part 220 Base part

Claims (5)

A chair portion having a seating surface;
A frame part that supports the chair part and to which a traveling wheel is attached;
A wheelchair comprising:
The frame portion includes a lower frame to which the wheel is attached, and an upper frame that is disposed on the lower frame and detachably supports the chair portion.
The lower frame includes left and right connecting bars that connect the front and rear wheels, and a bridging bar that connects the left and right connecting bars,
At least one of the connecting bar of the left and right bent et al is inward,
Each end of the left and right connecting bars is provided with a vertical bar that extends in the vertical direction and is attached to the wheel on the lower end side,
The bridge bar is provided between the vertical bars arranged in the front-rear direction when the wheelchair is viewed from the side along the left-right direction . The wheelchair according to claim 1, wherein the bridging bar is provided away from the vertical bar in a direction parallel to the front-rear direction . The wheelchair according to claim 1 or 2, wherein two bridging bars are provided at intervals in the front-rear direction. Further provided with a footrest part,
The wheelchair according to any one of claims 1 to 3, wherein the footrest part can be accommodated under the chair part. The lower frame is provided with a plurality of pillars extending in the vertical direction separately from the vertical bar,
The wheelchair according to any one of claims 1 to 4, wherein the upper frame is supported by the plurality of support columns.

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