JP5250793B2 - wheelchair - Google Patents

Description

  The present invention relates to a wheelchair, and more particularly to a wheelchair that can increase the degree of freedom of a user's posture and can also be used as a stretcher.

The user who uses the wheelchair is, for example, an elderly person or a disabled person. Wheelchairs are used to transport users, but in order to keep the users horizontal, the backrest can be reclined and leveled, and the leg lifts that lift the legs can be raised to level. A wheelchair that can be used has been proposed (see Patent Document 1).
JP 2003-190222 A

By the way, it is required not only to hold the user horizontally but also to raise the degree of freedom of the posture so that the user can sit comfortably when using the user.
Accordingly, the present invention provides a wheelchair that can be used not only as a stretcher while holding the user horizontally, but also to increase the degree of freedom of the user's posture and to sit comfortably in order to solve the above problems. Objective.

In order to solve the above problems, the wheelchair of the present invention is a wheelchair that moves with a user on it,
A base frame,
Left and right side frames fixed to the base frame;
A seating surface portion provided between the left and right side frames to seat the user and having a through hole that opens to the toilet when the user excretes;
A leg lifting unit that can be held at an angle with respect to the seat surface to lift the user's leg; and
A backrest unit that can be held at an arbitrary angle with respect to the seat surface to support the back and head of the user;
Equipped with a,
The leg lifting unit, the seating surface part, and the backrest unit can constitute a stretcher that forms a flat part for laying and holding the user.
When configuring the stretcher, the backrest unit has an extension holding member that extends the length of the backrest unit along the front-rear direction of the wheelchair with respect to the seat surface portion,
Said back unit, the length of the base frame, characterized Rukoto to have a prolonged frame for extending according to the length of extension of said backrest unit.

  In the wheelchair according to the present invention, preferably, the leg lifting unit, the seating surface portion, and the backrest unit can constitute a stretcher that forms a flat portion for laying and holding the user.

In the wheelchair according to the present invention, preferably, the base frame is provided with left and right support frames standing upright, and the left and right side frames are interposed with respect to the base frame via the left and right support frames. Fixed,
Between the leg lifting unit and the left and right support frames, an angle setting unit for the leg lifting unit for setting the angle of the leg lifting unit is provided, respectively.
Between the backrest unit and the left and right side frames, an angle setting section for the backrest unit for setting an angle of the backrest unit is provided.

In the wheelchair of the present invention, preferably, the angle setting portion of the leg lifting unit is provided on the arc-shaped moving body fixed to the leg lifting unit and the left and right support frames, and the leg lifting unit includes A holding unit that holds the moving body that moves as the angle changes for each predetermined angle;
The angle setting unit of the backrest unit predetermines an arcuate moving body fixed to the backrest unit and the moving body that is provided on the left and right side frames and moves by changing the angle of the backrest unit. And a holding portion for holding each angle.

When the wheelchair of the present invention preferably forms the stretcher, the backrest unit includes an extension holding member that extends the length of the backrest unit along the front-rear direction of the wheelchair with respect to the seat surface portion. Have
The backrest unit includes an extension frame for extending the length of the base frame in accordance with the extension length of the backrest unit.

  The wheelchair of the present invention preferably has an open portion for allowing a Western-style toilet to enter under the seat surface portion, and the seat surface portion has a through hole at a position corresponding to the Western-style toilet. And a closing member that closes the through hole so as to be openable and closable.

The wheelchair of the present invention is preferably such that the backrest unit includes left and right backrest frames, and a backrest member that is detachably disposed between the left and right backrest units,
A rotation operation unit that rotates the left and right backrest frames and retracts them in opposite directions to increase the interval between the left and right backrest frames.

  ADVANTAGE OF THE INVENTION According to this invention, not only can a user be hold | maintained horizontally but can be used as a stretcher, the wheelchair which can raise a freedom degree of a user's attitude | position and can sit comfortably can be provided.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a preferred embodiment of the wheelchair of the present invention. FIG. 2 is a perspective view showing a state where the wheelchair shown in FIG. 1 is used as a stretcher.
First, the structure of the wheelchair 10 will be described with reference to FIG.
The wheelchair 10 shown in FIG. 1 includes a base frame 11, left and right side frames 12, 13, left and right support frames 14B, 14C, 15B, and 15C, left and right front wheels 18, and left and right rear wheels 19. The seat part 20, the leg lifting unit 35 </ b> S, and the backrest unit 21 are provided. Except for the front wheel 18 and the rear wheel 19, each element is made of a metal such as iron.

  As shown in FIG. 1, the base frame 11 has a substantially U-shape and is composed of a front frame member 22 and left and right frame members 23 and 24. The front frame member 22 is along the X direction, and the left and right frame members 23 and 24 are arranged in parallel along the Y direction perpendicular to the X direction. The X direction and the Y direction form a horizontal plane.

The left and right front wheels 18 are rotatably attached to the front end portions of the left and right frame members 23 and 24, respectively, and can change directions. The left and right rear wheels 19 are rotatably and detachably attached to the rear ends of the extension frames 61 and 62 of the left and right frame members 23 and 24, respectively. Thereby, the rear wheel 19 can be replaced with a wheel having a larger diameter, and the user M can move by operating the rear wheel having a larger diameter.
A flat footrest member 25 is fixed to the left and right frame members 23 and 24 and the front frame member 22. The user M has a relatively large footrest area so that the user M can place his / her foot on the footrest member 25 or can stand by the user M.

The footrest member 25 not only places the foot of the user M, but also serves to mechanically reinforce the left and right frame members 23 and 24 of the base frame 11 and the front frame member 22. On the rear side of the footrest member 25, an intrusion prevention stopper 25S is provided between the left and right frame members 23, 24. As will be described later, the intrusion prevention stopper 25S serves to prevent the western-style toilet from entering too much when the western-style toilet, which is the object, enters the opening 80 to a position corresponding to the seat surface portion 20. Yes. The inner sides of the left and right frame members 23, 24 serve as guide members for adjusting the left / right blur of the wheelchair 10 to position the Western-style toilet just below the opening of the seat surface portion 20.
As shown in FIGS. 1 to 3, no member is disposed between the rear end portions of the left and right frame members 23 and 24, and the rear end portions of the left and right frame members 23 and 24 are opened. Yes.

As shown in FIGS. 1 and 2, the left and right support frames 14B, 14C, 15B, and 15C are positioned in the middle of the left and right frame members 23 and 24 in the Z direction (vertical directions orthogonal to the X direction and the Y direction, respectively). ) And are fixed in parallel along.
As shown in FIGS. 1 and 2, the left and right side frames 12 and 13 are supported by the left and right support frames 14B, 14C, 15B, and 15C with respect to the base frame 11, respectively. The left side frame 12 has a rotating member 30 and a horizontal member 31. Similarly, the right side frame 13 includes a rotating member 32 and a horizontal member 33.
The lower end portion 34 of the left turning member 30 and the lower end portion 35 of the right turning member 32 are connected by a connecting frame 35R to constitute a leg lifting unit 35S that is a substantially U-shaped member.

  As shown in FIG. 1, the left support frame 14B is fixed to the front side of the left support frame 14C, and the right support frame 15B is fixed to the front side of the right support frame 15C. The left support frame 14B and the left support frame 14C are reinforced by a reinforcing member 14D, and the right support frame 15B and the right support frame 15C are reinforced by a reinforcing member 15D. The upper end portion of the left support frame 14 </ b> C fixes the middle portion of the horizontal member 31, and the upper end portion of the right support frame 15 </ b> C fixes the middle portion of the horizontal member 33.

As shown in FIG. 1, the upper end portion of the rotating member 30 is connected to the front end portion of the horizontal member 31 by a hinge portion 30P, and the hinge portion 30P is provided at the upper end portion of the left support frame 14B. Yes. Similarly, the upper end portion of the rotating member 32 is connected to the front end portion of the horizontal member 33 by a hinge portion 32P, and the hinge portion 32P is provided at the upper end portion of the left support frame 15B.
Between the intermediate part of the rotation member 30, the left support frame 14B, and the left support frame 14C, an angle setting unit 1 of a leg lifting unit for setting the angle of the rotation member 30 is provided. . In addition, an angle setting unit 2 of a leg lifting unit for setting the angle of the rotation member 32 is provided between the intermediate portion of the rotation member 32, the right support frame 15B, and the right support frame 15C. ing.

  The angle setting units 1 and 2 of the leg lifting unit shown in FIG. 1 have a symmetrical shape. The angle setting unit 1 includes an arcuate moving body 3 and a holding unit 4. The holding part 4 is formed in the middle of the left support frame 14B. One end 3 </ b> B of the moving body 3 is fixed to an intermediate portion of the rotating member 30, but the moving body 3 passes through the holding portion 4. The moving body 3 has a plurality of angle setting holes 5 along its longitudinal direction. The holding part 4 has a fitting protrusion 6 and a spring 7. The fitting protrusion 6 of the holding portion 4 is fitted into an arbitrary hole 5 in accordance with the angle set by the rotating member 30 against the force of the spring 7, so that the angle θ of the rotating member 30 is vertical to the left. The support frame 14B can be held.

  Similarly, the opposite angle setting unit 2 shown in FIG. 1 includes an arcuate moving body 3 and a holding unit 4. The holding part 4 is formed in the middle of the right support frame 15B. One end 3 </ b> B of the moving body 3 is fixed to an intermediate portion of the rotating member 32, but the moving body 3 passes through the holding portion 4. The moving body 3 has a plurality of angle setting holes 5 along its longitudinal direction. The holding part 4 has a fitting protrusion 6 and a spring 7. The fitting protrusion 6 of the holding portion 4 is fitted into an arbitrary hole 5 in accordance with the angle set by the rotating member 32 against the force of the spring 7, so that the angle θ of the rotating member 32 is vertical to the right. The support frame 15B can be held.

As a result, the leg lifting unit 35S composed of the left and right rotating members 30, 32, the connecting frame 35R, and the plate member 35M rotates in the T direction around the hinges 30P, 32P and lifts, thereby setting the angle setting unit. 1 and 2 can be positioned and held at an arbitrary angle θ with respect to the left and right support frames 14B and 15B. If the angle θ is 90 degrees, the leg lifting unit 35S is horizontal so as to be in the same plane according to the height of the seat surface portion 20.
As shown in FIG. 1, the left support frame 14C and the left horizontal member 31 are provided with an elbow rest member 40R, and the right support frame 15C and the right horizontal member 33 are provided with an elbow rest member 40L. Is provided.

Next, as shown in FIGS. 1 and 2, the left and right backrest frames 16 and 17 have extension holding members 41 and 42, respectively. Both the left and right backrest frames 16 and 17 and the extension holding members 41 and 42 are pipes, but the extension holding members 41 and 42 can be inserted and accommodated in the left and right side frames 12 and 13, respectively.
As shown in FIG. 1, in a state where the backrest frames 16 and 17 are held at right angles to the seating surface portion 20, they are inserted into the left and right side frames 12 and 13 for storage. Yes.

  On the other hand, as shown in FIG. 2, when the left and right backrest frames 16 and 17 are linked lining from the vertical state to the rear side or held horizontally, they are extended as shown in FIGS. The holding members 41 and 42 can be extended and held from the left and right side frames 12 and 13 along the Y2 direction, respectively. 1, when the left and right backrest frames 16 and 17 are returned to the Y1 direction, the extension holding members 41 and 42 can be accommodated in the left and right side frames 12 and 13, respectively, along the Y1 direction.

As shown in FIG. 1, the end portions of the extension holding members 41 and 42 are connected to the front end portions of the left and right backrest frames 16 and 17 via hinge portions 43 and 44.
As shown in FIG. 1, the backrest frames 16 and 17 are provided in parallel along the Z direction, and the upper end portions of the backrest frames 16 and 17 are grip portions 45 for pushing. A backrest plate 46 is detachably fixed between the backrest frames 16 and 17.

  As shown in FIGS. 1 and 2, an angle setting portion 51 of a backrest unit is provided between the extension holding member 41 and the support frame 40B of the left elbow rest member 40R. Between the extension holding member 42 and the support frame 40C of the right elbow rest member 40L, an angle setting portion 52 of a backrest unit is provided.

  As shown in FIG. 1, the angle setting parts 51 and 52 of the backrest unit have a symmetrical shape. The angle setting unit 51 of the backrest unit includes an arc-shaped moving body 53 and a holding unit 54. The holding portion 54 is formed in the middle of the left support frame 40B. One end portion 53 </ b> B of the moving body 53 is fixed to the extension holding member 41, but the moving body 53 passes through the holding portion 54. The moving body 53 has a plurality of angle setting holes 5 along its longitudinal direction.

  Similar to the angle setting units 1 and 2 of the leg lifting unit shown in FIG. 1, the holding unit 54 has a fitting protrusion and a spring. The fitting protrusion of the holding portion 4 is fitted into an arbitrary hole 5 according to the angle set by the left back frame 16 against the force of the spring, so that the angle θ1 of the left back frame 16 is set to the left horizontal It can be held at an arbitrary angle between a state perpendicular to the member 31 (angle θ1 is 90 degrees) and a horizontal state (angle θ1 is 0 degrees).

Similarly, the angle setting unit 52 of the backrest unit includes an arcuate moving body 53 and a holding unit 54. The holding portion 54 is formed in the middle of the right support frame 40C. One end portion 53 </ b> B of the moving body 53 is fixed to the extension holding member 42, but the moving body 53 passes through the holding portion 54. The moving body 53 has a plurality of angle setting holes 5 along its longitudinal direction. The holding part 54 has a fitting protrusion and a spring. The fitting protrusion of the holding part 4 is fitted into an arbitrary hole 5 according to the angle set by the right back frame 17 against the force of the spring, so that the angle θ1 of the left back frame 17 is the right horizontal The member 33 can be held at an arbitrary angle between the vertical state (angle θ1 is 90 degrees) and the horizontal state (angle θ1 is 0 degrees).
Accordingly, the backrest unit 21 including the left and right backrest frames 16 and 17, the extension holding members 41 and 42, and the backrest plate 46 rotates in the S direction around the hinge portions 43 and 44 and is positioned at an arbitrary angle θ1. Can be held.

Next, with reference to FIGS. 1-6, the left-right support unit 60 for supporting the backrest unit 21 with respect to the base unit 11 is demonstrated.
FIG. 3 is a perspective view of the support units 60 and 60 as seen from the rear, and FIG. 4 is a side view of the support units 60 and 60.
As shown in FIG. 2, the support units 60 and 60 are provided at the rear ends of the extension frames 61 and 62 of the base unit 11, respectively, and the support units 60 and 60 are respectively provided with a support member 63 and a fixture 63H. Have

As shown in FIG. 1, the extension frames 61 and 62 are built in the left and right frame members 23 and 24, respectively, and can be pulled out in the Y2 direction as shown in FIGS.
As shown in FIG. 3, a holder 65 of the rear wheel 19 is fixed to the rear ends of the extension frames 61 and 62, and a support member 63 is rotatably connected by a hinge portion 66.

  When the support member 63 is laid down in the Y direction as shown in FIG. 3, when it is turned 90 degrees in the G direction through the hinge portion 66 as shown in FIG. The rear ends of the extension frames 61 and 62 can stand vertically. And as shown in FIG. 4, the support member 63 can be fixed in the state stood | rightened by screwing the screw 67 in the fixing tool 63H and the rear-end part of the extension frames 61 and 62. As shown in FIG.

  As is apparent from a comparison between FIGS. 1 and 2, the extension holding members 41 and 42 are extended from the backrest frames 16 and 17 in the Y2 direction, respectively, as shown in FIG. As described above, the extension frames 61 and 62 are extended from the left and right frame members 23 and 24 by the same length in the Y2 direction, so that the fixtures 63H of the support members 63 and 63 are respectively connected to the extension holding members 41 and 62. The rear portion of 42 can be fixed in a fitted state. Therefore, the backrest unit 21 can be securely held in the horizontal state with respect to the base frame 11 via the support members 63 and 63 and supported in strength.

Next, the rotation operation unit 79 of the backrest frames 16 and 17 will be described with reference to FIGS.
FIG. 7 is a perspective view showing an example in which the assistant transfers the user M from the wheelchair 10 to the upper surface 101 of the bed 100, and FIG. 8 is a view showing the front and back of the wheelchair 10.
7 and 8 has a symmetrical shape, and after the back plate 46 shown in FIG. 1 is removed from the back frames 16 and 17, the back frame 16 is provided. , 17 are rotated by 180 degrees in opposite directions.

  In this way, the backrest frames 16 and 17 are rotated when the user M moves from the wheelchair 10 to the upper surface 101 of the bed 100 as shown in FIG. In order to prevent the left and right backrest frames 16 and 17 from obstructing the transfer work of the user M, the distance between the left and right backrest frames 16 and 17 is increased by retreating in directions opposite to each other. is there.

FIG. 9 shows the structure of the left rotation operation unit 79 as a representative example, but the structure of the right rotation operation unit 79 is substantially symmetrical to the structure of the left rotation operation unit 79. The same structure.
As shown in FIG. 9, the rotation operation unit 79 includes a fixed side member 81, a movable side member 82, and a hinge portion 83. The movable side member 82 fixes the lower end portion of the backrest frame 16 (or the backrest frame 17). The movable member 82 is connected by a hinge portion 83 so as to be able to rotate with respect to the fixed member 81. In FIG. 9A, the movable side member 82 overlaps the fixed side member 81 and is detachably fixed by a screw 84 and a nut 85.

  Then, when the screw 84 and the nut 85 are removed, the movable side member 82 is rotated 180 degrees in the K direction from the fixed side member 81, so that the backrest frame 16 and the backrest frame 17 are as shown in FIGS. They can be retracted in the X1 and X2 directions that are separated from each other. Thereby, when the user M transfers from the wheelchair 10 to the upper surface 101 of the bed 100, the space between the backrest frame 16 and the backrest frame 17 is widened, so that the backrest frame 16 and the backrest frame 17 do not get in the way.

Next, a structural example of the seating surface portion 20 shown in FIG. 1 will be described with reference to FIGS. 10 and 11.
FIG. 10 is a plan view of the seat surface portion 20, and FIG. 11 is a perspective view of the seat surface portion 20.
The seat surface portion 20 shown in FIG. 1 is a portion where the user M sits on the waist, and the seat surface portion 20 is a plane formed in the X direction and the Y direction between the left and right side frames 12 and 13. Are placed and held along.

  As shown in FIGS. 10 and 11, the seat surface portion 20 includes a support substrate portion 150 and a through-hole closing portion 160. The support substrate unit 150 includes a first substrate 151, a second substrate 152, and support members 170 and 170. Support portions 170 and 170 are provided at outer ends of the first substrate 151 and the second substrate 152.

  The first substrate 151 and the second substrate 152 have a symmetrical shape. The outer end portion of the first substrate 151 is supported rotatably with respect to the horizontal shaft portion 131 by the hinge portion 159B. Similarly, the outer end portion of the second substrate 152 is supported by the hinge portion 159C so as to be rotatable with respect to the horizontal shaft portion 133.

  In a state where the first substrate 151 and the second substrate 152 are positioned and held along a horizontal plane formed in the X direction and the Y direction to form a seating surface, the inner end portion of the first substrate 151 and the second substrate 152 are formed. The inner end portion of the first substrate 151 is abutted, and a substantially semi-elliptical or semicircular opening 155 is formed on the inner end portion side of the first substrate 151, and the inner end portion side of the second substrate 152 is formed on the inner end portion side. A substantially semi-elliptical or semi-circular opening 156 is formed.

In a state in which the first substrate 151 and the second substrate 152 form a seating surface, the openings 155 and 156 form an elliptical or circular through hole 157. The through hole 157 is formed at the center position of the seating surface formed by the first substrate 151 and the second substrate 152.
The through hole 157 is provided to allow the user M to excrete the Western-style toilet while sitting on the first substrate 151 and the second substrate 152 of the seat surface portion 20. ing.

  The through-hole closing portion 160 is used to close the through-hole 157 when the user M sits on the seat surface portion 20 in a normal state. The closing part 160 has a first closing member 161 and a second closing member 162. The first closing member 161 can close the opening 155 that is a part of the through hole 157, and the second closing member 162 can close the opening 156 that is the remaining part of the through hole 157. The first closing member 161 and the second closing member 162 have a substantially semi-elliptical shape or semi-circular shape.

  As shown in FIGS. 10 and 11, the first closing member 161 is connected to the hinge part 164 via the arm 163, and the first closing member 61 is rotatable to the horizontal shaft part 131 via the hinge part 164. Is attached. Similarly, the second closing member 162 is connected to the hinge portion 166 via the arm 165, and the second closing member 162 is rotatably attached to the horizontal shaft portion 133 via the hinge portion 166.

  As shown in FIG. 11, the first substrate 51 has a stepped portion 167 for fitting the first closing member 161 on the upper surface side and a groove portion 168B for fitting the arm portion 163. The second substrate 152 has a step 169 for fitting the second closing member 162 on the upper surface side, and a groove 168C for fitting the arm 163. The step portions 167 and 169 are formed along the peripheral edges of the openings 155 and 156, respectively, and the groove portions 168B and 168C are formed along the X direction.

As shown in FIG. 10, the first closing member 161 is fitted into the stepped portion 167, the second closing member 162 is fitted into the stepped portion 169, the arm portion 163 is fitted into the groove portion 168B, and the arm portion 165 is fitted into the groove portion 168C. When fitted, the first substrate 151 and the first closing member 161, and the second substrate 152 and the second closing member 162 are flush with each other so as to be easy to sit without causing irregularities.
Thereby, although the first closing member 161 and the second closing member 162 are provided, the first closing member 161 and the second closing member 162 are flush with the first substrate 151 and the second substrate 152, respectively. Therefore, the user M can sit comfortably without feeling unevenness in the seating surface portion 20.

Next, an example of operation of using the wheelchair 10 described above will be described.
First, in the case of normal use in which the user M is transported using the wheelchair 10, the backrest unit 21 is held upright on the wheelchair 10, as shown in FIG. It is in the state lowered to. For example, when the assistant places the user M, the waist portion of the user M is placed on the seat surface portion 20, and both feet put their feet on the footrest member 25. The back of the user M is held against the backrest unit 21. The hand of the user M is placed on the elbow rest members 40R and 40L. Then, the assistant can hold the grip portions 45 and 45 of the wheelchair 10 and push the wheelchair 10 to convey the user M.

  When the user M normally uses the wheelchair 10, as shown in FIG. 12, the backrest unit 21 is reclined at an arbitrary angle θ1 obliquely rearward along the S direction, or a leg lifting unit 35S. Can be lifted in the T direction and held at an arbitrary angle θ. As a result, the user M can relax and sit on the wheelchair 10, and the degree of freedom increases when the user M takes the posture, so that the user M can use it comfortably. In addition, as shown in FIG. 12, by adopting a structure in which the footrest member 25 is lifted together with the leg lifting unit 35S being lifted in the T direction, the angle of the ankle of the user M can be adjusted. Therefore, the user can relax.

Next, an example will be described in which the wheelchair 10 is operated as a stretcher as shown in FIG. 2 from the normal use state of the wheelchair 10 shown in FIG.
First, the leg lifting unit 35S including the left and right rotating members 30 and 32 and the connecting frame 35R shown in FIG. 1 is rotated around the hinges 30P and 32P in the T direction and positioned and held at the angle θ. Is done. In this case, the plate member 35M is detachably fixed to the left and right rotating members 30 and 32. As a result, the leg lifting unit 35S is held at the same height as the seat surface 20 and in a horizontal state.

  Further, as is apparent from a comparison between FIG. 1 and FIG. 2, when the extension holding members 41, 42 are extended in the Y2 direction from the left and right side frames 12, 13, respectively, from within the left and right frame members 23, 24. The extension frames 61 and 62 are each extended in the Y2 direction by the same length.

The backrest unit 21 including the left and right backrest frames 16 and 17, the extension holding members 41 and 42, and the backrest plate 46 rotates around the hinges 43 and 44 in the S direction and is positioned and fixed at the angle θ 1. Is done. In addition, the left and right support members 63 and 63 shown in FIG. 1 are rotated 90 degrees in the G direction, and as shown in FIG. 2, the receiving portions 63H of the support members 63 hold the extended holding members 41 and 42 at the corresponding positions. Insert and fix.
Accordingly, the backrest unit 21 is held in the Z direction by the support members 63, and the leg lifting unit 35S, the seat surface portion 20, and the backrest unit 21 are held horizontally. It can be used as a stretcher to transport in a laid state.

  The wheelchair 10 is not only used as a stretcher as shown in FIG. 2, but as shown in FIG. 12, as shown in FIGS. 12 and 13, in order for the user to maintain a good posture, The relative positional relationship between the leg lifting unit 35S, the seat surface 20 and the backrest unit 21 can be arbitrarily selected. For example, the leg lifting unit 35S is tilted and held at an angle θ with respect to the horizontal seating surface portion 20 and the backrest unit 21 is tilted and held at an angle θ1 so that the user can sit in any posture. Yes, you can get comfort and relax.

Next, as shown in FIGS. 7 and 8, the case where the user M is transferred from the wheelchair 10 to the bed 100 will be described.
In this case, the backrest plate 46 shown in FIG. 1 is removed from the left and right backrest frames 16 and 17, and the first substrate 151 and the second substrate 152 of the seat surface portion 20 are flipped up 90 degrees in the opposite directions and held. In addition, by moving the wheelchair 10 in the Y2 direction, the upper surface 101 of the bed 100 is relatively advanced to a position corresponding to the seat surface portion 20.
Thus, the assistant can easily and reliably transfer the user M from the wheelchair 10 to the upper surface 101 of the bed 100.

  Further, the user M shown in FIG. 1 can perform excretion using a Western-style toilet while sitting on the seat surface portion 20 of the wheelchair 10. In other words, as shown in FIG. 11, the through hole 157 can be exposed by flipping the first closing member 161 and the second closing member 162 by 90 degrees in opposite directions. A Western-style toilet bowl can be located below the through-hole 157, and the user can excrete into the Western-style toilet bowl through the through-hole 157 while sitting on the seat surface portion 20. Thereby, the user can excrete while sitting on the wheelchair 10, and the convenience of the wheelchair 10 is improved.

Next, another embodiment of the present invention will be described with reference to FIG.
As shown in FIG. 14, the extension attachment member 201 is provided to be lifted 90 degrees in the elbow rest member 40R, and the extension attachment member 202 is provided to be lifted 90 degrees in the elbow rest member 40L. ing. By extending the extension mounting member 201 from the elbow rest member 40R in the Y1 direction and by extending the extension mounting member 202 from the elbow rest member 40L in the Y1 direction, the extension mounting members 201 and 202 respectively turn the rotating members 30 and 31. , And can be held along the Z direction.
By doing in this way, connection frame 35R can be used as a handrail part for the user sitting on seat surface part 20 to hold with a hand and to stabilize a user's body. As another utilization method, as shown in FIG. 14 (A), by placing a table (flat plate) on the extension attachment members 201 and 202 positioned in parallel, a meal or a wash surface is provided, Alternatively, it can be used for various purposes such as reading or manual work.

  FIG. 15 shows another embodiment of the wheelchair 10 of the present invention. The wheelchair 10 shown in FIG. 15 has a rear wheel 19G having a larger diameter than the wheelchair 10 shown in FIG. The rear wheel 19G is used in place of the small diameter rear wheel 18 shown in FIG. 1, and is detachably attached to the support members 63 and 63. For example, when the wheelchair 10 is used outdoors, the rear wheel 19G is easier to push and move the wheelchair 10 than when the small rear wheel 19 is used. Furthermore, by changing the rear wheel 19G, the user M can move the wheelchair 10 by freely operating the wheelchair 10 himself.

  The wheelchair according to the present invention is a wheelchair on which a user is moved and is provided between a base frame, left and right side frames fixed to the base frame, and left and right side frames. When the user sits and excretes, the seat surface part has a through hole that opens to the toilet, and the seat surface part is inclined at an arbitrary angle to lift the user's leg part. A leg lifting unit that can be held, and a backrest unit that can be held at an arbitrary angle with respect to the seat surface to support the back and head of the user. Thereby, not only can the user be held horizontally but can be used as a stretcher, the user can sit comfortably with a higher degree of freedom of posture.

  In the wheelchair according to the present invention, preferably, the leg lifting unit, the seating surface portion, and the backrest unit can constitute a stretcher that forms a flat surface portion for laying and holding a user. Thereby, a user can be hold | maintained reliably and can be conveyed.

  In the wheelchair of the present invention, the left and right support frames are preferably provided upright on the base frame, and the left and right side frames are fixed to the base frame via the left and right support frames. An angle setting section for the leg lifting unit for setting the angle of the leg lifting unit is provided between the leg lifting unit and the left and right support frames, respectively, and between the backrest unit and the left and right side frames. Is characterized in that a backrest unit angle setting section for setting the angle of the backrest unit is provided. As a result, by using the angle setting unit of the leg lifting unit and the angle setting unit of the backrest unit that set the angle of the leg lifting unit, the user can sit in a wheelchair in a comfortable posture, and horizontally Can be held in a sleeping position.

  In the wheelchair of the present invention, preferably, the angle setting part of the leg lifting unit is provided on the arc-shaped moving body fixed to the leg lifting unit and the left and right support frames, and the angle of the leg lifting unit is changed. A holding unit that holds the moving body that moves at a predetermined angle, and the angle setting unit of the backrest unit is provided on the arc-shaped moving body fixed to the backrest unit and the left and right side frames. And a holding unit that holds the moving body that moves when the angle of the backrest unit changes for each predetermined angle. Thereby, although it is a simple structure, a leg part lifting unit and a backrest unit can each be hold | maintained at arbitrary angles.

  When the wheelchair of the present invention preferably forms a stretcher, the backrest unit has an extension holding member that extends the length of the backrest unit along the front-rear direction of the wheelchair with respect to the seat surface portion, and the backrest unit Is characterized by having an extension frame for extending the length of the base frame in accordance with the extension of the length of the backrest unit. Thereby, even if the user is in a horizontal state, the whole body including the user's head can be reliably held.

  The wheelchair of the present invention preferably has an open portion for allowing a Western-style toilet to enter under the seat surface portion, and the seat surface portion has a through-hole at a position corresponding to the Western-style toilet, and opens and closes the through-hole. It is characterized by including a closing member that can be closed. Thereby, since it can excrete with respect to a western style toilet bowl, sitting in a wheelchair, the convenience of a wheelchair improves.

  In the wheelchair of the present invention, preferably, the backrest unit has left and right backrest frames and a backrest member that is detachably disposed between the left and right backrest units, and the left and right backrest frames are respectively rotated. It is characterized by having a rotation operation section that retracts in directions opposite to each other to increase the interval between the left and right backrest frames. Thereby, when trying to transfer a user from a wheelchair to an object such as a bed, the interval between the left and right backrest frames is widened, so that the left and right backrest frames can be prevented from getting in the way. Similarly, the left and right backrest frames do not get in the way when moving from an object such as a bed to a wheelchair. Therefore, the user can easily transfer from the wheelchair to the object or transfer from the object to the wheelchair, that is, the user can transfer from the front and transfer from the rear.

By the way, this invention is not limited to the said embodiment, A various modified example is employable.
Each embodiment of the present invention can be used in combination.
The angle setting part of the backrest unit 21 and the angle setting part of the leg lifting unit 35S are not limited to the structure of the illustrated example, and other structures can also be adopted.

It is a perspective view which shows preferable embodiment of the wheelchair of this invention. It is a perspective view which shows the example in the case of using the wheelchair shown in FIG. 1 as a stretcher. It is a perspective view which shows the support member etc. of a base frame. It is a side view which shows the support member etc. of a base frame. It is a perspective view which shows the vicinity of a rear wheel. It is a side view which shows the vicinity of a rear wheel. It is a perspective view which shows a mode that it transfers to a bed from a wheelchair. It is a figure which shows the state which rotated and retracted the backrest frame. It is a perspective view which shows the structural example which rotates a backrest frame. It is a top view which shows a seat surface part. It is a perspective view which shows a seat surface part. It is a perspective view which shows a reclining state. It is a perspective view which shows a reclining state. It is a perspective view which shows another embodiment of this invention. It is a perspective view which shows another embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Wheelchair 11 Base frame 12, 13 Left and right side frame 14B, 14C, 15B, 15C Left and right support frame 20 Seat surface part 21 Backrest unit 35S Leg lift unit 55 Backrest unit 30,32 Rotating member 31,33 Horizontal member 1, 2 Angle setting units 41, 42 of the leg lifting unit Extension holding member 46 Backrest plates 51, 52 Angle setting unit 60 of the backrest unit Left and right support unit 63 Support member 63H Fixing tool 79 Rotation operation unit of the backrest frame

Claims (5)

A wheelchair that carries users and moves,
A base frame,
Left and right side frames fixed to the base frame;
A seating surface portion provided between the left and right side frames to seat the user and having a through hole that opens to the toilet when the user excretes;
A leg lifting unit that can be held at an angle with respect to the seat surface to lift the user's leg; and
A backrest unit that can be held at an arbitrary angle with respect to the seat surface to support the back and head of the user;
Equipped with a,
The leg lifting unit, the seating surface part, and the backrest unit can constitute a stretcher that forms a flat part for laying and holding the user.
When configuring the stretcher, the backrest unit has an extension holding member that extends the length of the backrest unit along the front-rear direction of the wheelchair with respect to the seat surface portion,
Said back unit, wheelchair, characterized in Rukoto the length of the base frame, having a extension frame for extending according to the length of extension of said backrest unit. The base frame is provided with left and right support frames standing upright, and the left and right side frames are fixed to the base frame via the left and right support frames,
Between the leg lifting unit and the left and right support frames, an angle setting unit for the leg lifting unit for setting the angle of the leg lifting unit is provided, respectively.
2. The wheelchair according to claim 1, wherein an angle setting portion of a backrest unit for setting an angle of the backrest unit is provided between the backrest unit and the left and right side frames. The angle setting unit of the leg lifting unit includes an arc-shaped moving body fixed to the leg lifting unit and the left and right support frames, which move when the angle of the leg lifting unit changes. A holding unit that holds the moving body at predetermined angles, and
The angle setting unit of the backrest unit predetermines an arcuate moving body fixed to the backrest unit and the moving body that is provided on the left and right side frames and moves by changing the angle of the backrest unit. The wheelchair according to claim 2 , further comprising a holding portion that holds each angle. The wheelchair has an open portion for allowing a Western-style toilet to enter under the seat surface portion, and the seat surface portion has a through hole at a position corresponding to the Western-style toilet bowl, and opens and closes the through hole. The wheelchair according to any one of claims 1 to 3 , further comprising a closing member that can be closed. The backrest unit includes left and right backrest frames, and a backrest member that is detachably disposed between the left and right backrest units,
2. The wheelchair according to claim 1, further comprising a rotation operation unit that rotates the left and right backrest frames and retracts the left and right backrest frames in directions opposite to each other to increase a distance between the left and right backrest frames.

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