JP2012147881A - Wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheelchair on which a person lying on a bed, who requires a long-term care, can easily move and sit.SOLUTION: The wheelchair comprises: a seat on which a person who requires a long-term care sits; a back rest provided on one of the front and rear edges of the seat so as to be freely rotated, and used to hold the back of the person; a foot rest provided on the other of the front and rear edges of the seat so as to be freely rotated, and used to hold the feet of the person; a leg frame able to be inserted under a bed; a leg having an upward frame extending upward from one end of the leg frame, the upward frame holding the sides of the seat such that the sides are located higher than the upper side of a bedclothes on a bed; and a lift mechanism for raising or lowering the seat by a height corresponding to an amount by which the seat is depressed by the person sitting on it. The non-leg sides of the seat, back rest, and foot rest are open. With the back rest and foot rest rotated horizontally, the seat, back rest, and foot rest can be inserted in or removed from a space above the bed from the open side.

Description

  The present invention relates to a wheelchair, and more particularly to a wheelchair considering transfer from a bed.

  Conventionally, a wheelchair for moving an elderly person or a sick or injured person (care recipient) from a bed to a toilet or other places has been proposed. For example, the nursing chair shown in Patent Document 1 has a structure in which a backrest portion and a seat portion at the rear of the nursing chair are detachable, and a lower rear portion of the seat portion is opened. With the backrest and seat removed from the care wheelchair, the care recipient is seated on the edge of the bed, and the care chair is moved back toward the bed toward the care recipient. By fitting the care wheelchair backwards into the edge of the bed, the care recipient sitting on the edge of the bed is as if sitting on the care wheelchair. In this state, the care recipient is seated on the care chair by lifting the waist of the care recipient and attaching the seat to the care chair and attaching the backrest portion to the care chair. Then, the care recipient can move while sitting on the care chair by removing the care chair from the bed.

JP 2010-213795 A

  However, in a conventional care wheelchair, when a care recipient who is sleeping in a bed sits on the care wheelchair, he / she needs to sit on the edge of the bed once. It is difficult to use a nursing wheelchair.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a wheelchair that can be easily transferred by a care recipient who is sleeping on a bed.

  The wheelchair according to claim 1 is a seat portion on which a butt portion of a care recipient is placed, a backrest that is rotatably provided on one of the front and back sides of the seat portion, and that holds the back portion of the care recipient, A footrest that is rotatably provided on the other front and rear sides of the unit, and holds a leg of a care recipient, a leg frame that can be inserted under the bed, and a standing frame that stands from one end of the leg frame. The frame includes a leg that holds the side of the seat higher than the upper surface of the bed bedding, and a lift mechanism that raises and lowers the seat by a height corresponding to the amount that the care recipient rides on. The side of the non-leg side of the rest and footrest is opened, and the seat, backrest and footrest can be inserted into the upper side of the bed from the opened side while the backrest and footrest are rotated horizontally, and then detached. Features that are possible That.

  The wheelchair according to claim 2 is characterized in that the lift mechanism includes a foot pedal having a cam structure, and the standing frame is moved upward with respect to the leg frame by swinging the foot pedal.

  The wheelchair according to claim 3 is characterized in that the backrest and the footrest are detachable from the seat portion, and the backrest and the footrest can be attached to either side of the seat portion.

  The wheelchair according to claim 4 is provided with a collar-like height conversion member between the leg frame and the standing frame, and the height of the seat portion is changed by replacing the height conversion member with a different length. And

  According to the first aspect of the present invention, the seat, the backrest and the footrest are opened on the non-leg side, and the seat, the backrest and the footrest are opened in a state where the backrest and the footrest are horizontally rotated. Since it can be inserted into the upper side of the bed and removed from the bed side, the seat portion, the backrest and the footrest can be transferred by the care recipient on the bed and can be transferred easily. In addition, it is equipped with a lift mechanism that raises and lowers the seat by a height corresponding to the amount that the care recipient rides and sinks, so that even if the care recipient gets on the seat, it can be smoothly separated from the bed Can do.

  According to the invention of claim 2, the lift mechanism includes a foot pedal having a cam structure, and by swinging the foot pedal, the standing frame can be moved upward with respect to the leg frame, and the structure is easy. The operation is also easy.

  According to invention of Claim 3, since a backrest and a footrest can be attached or detached from a seat part, and a backrest and a footrest can be mounted | worn in any side before and behind a seat part, a backrest and a footrest The wheelchair can be inserted as appropriate from either the left or right side of the bed for care recipients who are sleeping in any direction.

  According to the invention of claim 4, a collar-like height conversion member is provided between the leg frame and the standing frame, and the height of the seat portion can be changed by replacing the height conversion member with a different length. Therefore, beds having different heights can be applied with an easy structure and an easy operation.

It is a perspective view which shows an example of the wheelchair which concerns on this invention. It is a perspective view which shows operation | movement of the wheelchair. It is a side view which shows the wheelchair. It is a side view which shows operation | movement of the wheelchair. It is a side view which shows the operation | movement of the vertical motion of the wheelchair. It is explanatory drawing which shows the usage method of the wheelchair. It is explanatory drawing which shows the usage method of the wheelchair. It is explanatory drawing which shows the usage method of the wheelchair. It is explanatory drawing which shows the usage method of the wheelchair. It is explanatory drawing which shows the usage method of the wheelchair. It is sectional drawing which shows the structure of the side surface holding | maintenance part of the wheelchair.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. FIG. 1 is a perspective view showing an example of a wheelchair according to the present invention. FIG. 2 is a perspective view showing the operation of the wheelchair. FIG. 3 is a side view showing the wheelchair. FIG. 4 is a side view showing the operation of the wheelchair. FIG. 5 is a side view showing the vertical movement of the wheelchair. 6-10 is explanatory drawing which shows the usage method of the wheelchair. FIG. 11 is a cross-sectional view showing a structure of a side surface holding portion of the wheelchair.

  The wheelchair 1 in the figure is a wheelchair in consideration of transfer from the bed 4 of the care recipient H. The wheelchair 1 includes a seat portion 10, a backrest 20, a footrest 30, a leg portion 40, and the like. The seat portion 10 is a portion where the care recipient H places the hip and sits down. The backrest 20 is a part that is rotatably provided on any one of the front and rear sides of the seat 10 and holds the back of the care recipient H. The footrest 30 is a part that is rotatably provided on the other front and rear sides of the seat portion 10 and holds the leg of the care recipient H. The leg part 40 holds the seat part 10, the backrest 20, and the footrest 30 at a predetermined height.

  The seat 10 includes a bar-shaped seat front fulcrum frame 16 provided horizontally in parallel in the front-rear direction, a seat rear fulcrum frame 18, one end of the seat front fulcrum frame 16, and one end of the seat rear fulcrum frame 18. It is comprised by the seat part outer side frame 12 which connects. A cloth-shaped seat sheet 14 is bridged between the seat front fulcrum frame 16 and the seat rear fulcrum frame 18. The care recipient H sits down on the seat sheet 14.

  A backrest 20 that holds the back of the care recipient H is rotatably provided on the seat rear fulcrum frame 18 of the seat 10. Both ends of the U-shaped backrest frame 22 are fixed to the backrest 20 so as to be rotatable about the seat rear fulcrum frame 18. On the left and right sides of the backrest frame 22, cloth-like backrest seats 24 are bridged. The care recipient H leans back on the backrest seat 24. The inclination angle (rotation and fixation) of the backrest 20 is arbitrary, and the rotation of the backrest 20 can be stopped and fixed by an angle locking knob 18a provided at the end of the seat rear fulcrum frame 18. it can.

  A rod-shaped armrest 28 protrudes on the seat outer frame 12 side of the backrest frame 22 via an armrest holder 28 a provided so as to cover the backrest frame 22. When the backrest 20 as shown in FIG. 1 is at a backrest-like angle, the armrest 28 can be fixed to the backrest frame 22 at a position where the armrest 28 extends horizontally. The operation of the armrest 28 will be described later. A handle holder 26a protrudes from the left and right upper portions of the backrest frame 22 at right angles toward the outside, and a bar-shaped push handle 26 is provided at right angles from the side surfaces. As described above, the hand handle 26 is rotatably provided in parallel with the side surface of the backrest frame 22 via the handle holder 26a. The hand push handle 26 can be rotated at an arbitrary angle and can be fixed at a desired angle.

  A footrest 30 that holds the leg of the care recipient H is rotatably provided on the seat front fulcrum frame 16 of the seat 10. The footrest 30 has two substantially L-shaped footrest frames 32 fixed so as to be rotatable around both ends of the seat front fulcrum frame 16. The footrest frame 32 is fixed so that the short pieces face each other, and a plate-like footrest plate 34 is rotatably provided on the short pieces. The care recipient H places his sole on the footrest plate 34. The inclination angle (rotation and fixation) of the footrest 30 is arbitrary, and the rotation of the footrest 30 can be stopped and fixed by the angle lock knob 16 a provided at the end of the seat front fulcrum frame 16.

  The leg portion 40 includes a substantially L-shaped leg frame 42 and a standing frame 52 that stands up from one end of the leg frame 42. The leg frames 42 are pipe-shaped and have the same width as the seat front fulcrum frame 16 and the seat rear fulcrum frame 18 and are provided in parallel near the floor surface below them. The horizontally long portion of the leg frame 42 is longer than the seat front fulcrum frame 16 and the seat rear fulcrum frame 18, and the leg stay 44 is bridged at the end. Casters 46 are respectively provided at lower portions of both end portions of the horizontally long portion of the leg frame 42. The four casters 46 serve as wheels for moving the wheelchair 1. Each caster 46 is provided with a stopper for restricting rotation.

  A plate-like lift base stay 64 is stretched over the standing part of the leg frame 42. As shown in FIG. 11, a cylindrical lift pipe 62 is inserted into the standing end portion of the leg frame 42, and a plate-like lift pipe stay 62 a is bridged between the lift pipes 62. Yes. A height conversion pipe 60, which is a collar-shaped height conversion member, is inserted above the lift pipe 62, and a pipe-like standing frame 52 is provided above the height conversion pipe 60. A side stay 54 is bridged between the standing frames 52, and the vicinity of the ends of the seat front fulcrum frame 16 and the seat rear fulcrum frame 18 is fixed to the upper side of the side stay 54. Further, the standing frame 52 extends upward, and a rod-shaped holding portion side armrest 56 is bridged around the upper end portions of each other.

  Thus, the side surface holding part 50 which hold | maintains the seat part 10 to predetermined | prescribed height only from one side surface with the lift pipe 62 standing up from the leg part frame 42 of the leg part 40, the height conversion pipe 60, and the standing frame 52. Is configured. The height at which the seat portion 10 is held is slightly higher than the bedding upper surface 6a of the bedding 6 of the bed 4 as shown in FIGS.

  In the center of the lift base stay 64, a substantially rectangular plate-shaped lift base 74 is attached and fixed. And, on the upper part of the lift base 74, a standing side of a foot pedal 72 having a plate shape and a substantially right triangle is fixed so as to be slidable up and down and rotatable. As a result, the foot pedal 72 can swing with respect to the lift base 74. An upper end of a lower connecting plate 76, which is an elongated plate, is rotatably fixed to a substantially right angle portion of the foot pedal 72, and the lower connecting plate 76 is tilted and the lower end rotates to a lower portion of the lift base 74. It is fixed freely. Further, a lower end of an upper connecting plate 78, which is an elongated plate, is rotatably fixed to an upper corner portion of the foot pedal 72. The upper connecting plate 78 is inclined and has an upper end at the center of the lift pipe stay 62a. It is fixed to be freely rotatable.

  Thus, the foot pedal 72 is connected to the lift pipe stay 62a and the lift base stay 64 via the inclined upper connection plate 78 and lower connection plate 76, and the foot pedal 72 is mounted on the lift base 74. Therefore, the inclined upper connecting plate 78 and lower connecting plate 76 and the foot pedal 72 have a cam structure. By swinging the foot pedal 72, the lift pipe stay 62a is connected to the lift base stay 64. Can be moved away from or close to. By moving the lift pipe stay 62a away from or close to the lift base stay 64, the lift pipe 62 is also moved up and down, and the standing frame 52 is moved upward with respect to the leg frame 42. Go up and down. As described above, the foot pedal 72, the lift base 74, the lower connection plate 76, the upper connection plate 78, the lift pipe stay 62 a and the lift base stay 64 constitute the lift mechanism 70 that moves the seat portion 10 up and down.

  Further, the lift mechanism 70 includes a lock mechanism for holding the seat 10 in a lifted state. Specifically, the lift mechanism 70 is locked in a state where the foot pedal 72 is stepped on and swung, and when the foot pedal 72 is further pressed down, the lock is held. Such as a mechanism that disengages, or a mechanism that releases the lock by operating the lock release knob provided on the upper part of the standing frame 52, such as a mechanism that releases the lock. is not. In the lift mechanism 70, the seat portion 10 can be moved up and down by about 30 mm to about 50 mm. The height that can be moved up and down is equivalent to the height of the seat 10 that has been sunk while the care recipient is on it, and the lift mechanism 70 can move up and down by the height corresponding to the amount of the sink. It is to make.

  Next, the usage method of the wheelchair 1 of the above structures is demonstrated. First, a case where the care recipient H lying on the bed 4 is transferred to the wheelchair 1 will be described. First, as shown in FIGS. 2 and 4, the backrest 20 and the footrest 30 are horizontally rotated and fixed, and the seat portion 10, the backrest 20, and the footrest 30 become horizontally flat on a straight line. Like that. At this time, the armrest 28 is moved to the back side of the backrest seat 24. Then, as shown in FIG. 6, the seat portion 10, the backrest 20 and the footrest 30 are inserted into the upper side of the bedding 6 of the bed 4 from the open side opposite to the side surface holding portion 50. At this time, the leg frame 42 enters the gap between the bed legs 8 below the bed 4.

  At this time, the body of the care recipient H is turned 90 degrees sideways, and the caster 46 is fixed with a stopper after the wheelchair 1 is put into the bed 4 as shown in FIG. The buttocks of the care recipient H are placed on the seat sheet 14 of the seat 10 while returning to the back. The back of the care recipient H is also placed on the backrest seat 24 of the backrest 20 (FIG. 8). Although not shown, when the care recipient H gets on the wheelchair 1 on his back, the angle lock knob 18a is operated to raise the backrest 20 by about 80 degrees, and the armrest 28 is moved to the care recipient. It may be arranged in the horizontal direction of H.

  Next, as shown in FIG. 9, the step part 72a of the foot pedal 72 is stepped on to raise the seat part 10, the backrest 20 and the footrest 30 and fix them in the raised state (from (a) of FIG. 11 ( b)). Then, the wheelchair 1 is separated from the bed 4 while releasing the stopper of the caster 46 and pulling the holding portion side armrest 56 of the standing frame 52.

  With the seat 10, the backrest 20 and the footrest 30 completely detached from above the bed 4, the wheelchair 1 is parked once, and the caster 46 is fixed again with a stopper so that the wheelchair 1 does not move carelessly. . Then, while depressing the stepped portion 72a of the foot pedal 72, the lift mechanism 70 is unlocked, and the stepped portion is loosened to gradually lower the seat portion 10, the backrest 20 and the footrest 30 downward. After the seat part 10, the backrest 20 and the footrest 30 are lowered, the footrest 30 is rotated downward by about 70 degrees while the soles of the care recipient are placed on the footrest plate 34. Next, the backrest 20 is further raised, and the angle of the backrest 20 and the footrest 30 is fixed to an angle at which the care recipient H can easily sit. The armrest 28 and the hand push handle 26 are leveled (the state shown in FIGS. 1 and 3), the stopper of the caster 46 is released, and the wheelchair 1 is moved. When the care recipient H returns to the bed 4 from the state of sitting in the wheelchair 1 in the state of FIG. 1 or 3, the procedure is reversed in the case of transferring from the bed 4 to the wheelchair 1. That's fine.

  According to the wheelchair 1 in the present embodiment as described above, the side surfaces of the seat part 10, the backrest 20 and the footrest 30 on the non-leg part side are opened, and the backrest 20 and the footrest 30 are horizontally rotated. Thus, since the seat 10, the backrest 20 and the footrest 30 can be inserted into and removed from the upper side of the bed 4 from the opened side, the seat 10, the backrest 20 and the footrest 30 are necessary on the bed 4. The caregiver H can be transferred and can be transferred easily. Moreover, since the lift mechanism 70 which raises / lowers the seat part 10 by the height corresponding to the part which the care recipient H got on and sinked is provided, even if the care recipient H gets on the seat part 10 smoothly Can be separated from the bed.

  Further, the lift mechanism 70 includes a foot pedal 72 having a cam structure, and by swinging the foot pedal 72, the standing frame 52 can be moved upward with respect to the leg frame 42. Operation is also easy.

  Further, by making the backrest 20 and the footrest 30 detachable from the seat portion 10, the backrest 10 and the footrest 30 can be mounted on any one of the front and rear sides of the seat portion 10. By changing 30, the wheelchair 1 can be appropriately inserted from either the left or right side of the bed 4 for the care recipient H who is sleeping in any direction.

  Furthermore, the height conversion pipe 60, which is a collar-shaped height conversion member, can be exchanged between the leg frame 42 and the standing frame 52, and the height of the seat portion 10 can be exchanged. Therefore, the bed 4 having a different height can be applied with an easy structure and an easy operation.

  Although the backrest 20 and the footrest 30 can be fixed at an arbitrary angle, the angle may be fixedly selected so that the backrest 20 and the footrest 30 can move only to a fixed angle suitable for implementation of the present invention. . Further, the angle lock knob 16a and the angle lock knob 18a are provided at the ends of the seat front fulcrum frame 16 and the seat rear fulcrum frame 18 on the outside of the wheelchair 1, but this is not limited to this position. It is also possible to provide it at a position close to the seat portion 10 and is not limited by the position.

  As described above, according to the present invention, it is possible to provide a wheelchair that is easy to transfer a care recipient who is sleeping on a bed.

DESCRIPTION OF SYMBOLS 1 ... Wheelchair 4 ... Bed 6 ... Bedding 6a ... Bedding upper surface 8 ... Bed leg 10 ... Seat 12 ... Seat Outer frame 14 ... Seat seat 16 ... Seat front fulcrum frame 16a ... Angle lock knob 18 ... Seat rear fulcrum frame 18a ... Angle lock knob 20 ...・ Backrest 22 ・ ・ ・ ・ Backrest frame 24 ・ ・ ・ ・ Backrest seat 26 ・ ・ ・ ・ Hand handle 26 a ・ Handle holder 28 ・ ・ ・ ・ Arrest 28 a ... Armrest holder 30 · Footrest 32 · · · Footrest frame 34 · · · Footrest plate 40 · · · Leg portion 42 · · · Leg frame 44 · · · Leg stay 46 · · · Caster 50 · · · Side Holding part 52 ··· Standing frame 54 ··· Side stay 56 ··· Holding arm armrest 60 ··· Height conversion pipe 62 ··· Lift pipe 62a · · · Lift pipe stay 64 · · · Lift base Stand stay 70 ... Lift mechanism 72 ... Foot pedal 72a ... Depressing part 74 ... Lift base 76 ... Lower connecting plate 78 ... Upper connecting plate

Claims (4)

In a wheelchair that considers transfer from the bed of a care recipient,
A seat on which the butt of the care recipient rides;
A backrest that is rotatably provided on one of the front and rear sides of the seat, and holds the back of the care recipient,
A footrest that is pivotally provided on the other front and rear sides of the seat, and holds the legs of the care recipient;
A leg frame that can be inserted below the bed and a standing frame that stands up from one end of the leg frame, and the standing frame holds a side surface of the seat portion higher than an upper surface of the bed bedding;
A lift mechanism that raises and lowers the seat by a height corresponding to the amount that the care recipient rides and sinks;
Side surfaces of the seat part, the backrest and the non-leg part of the footrest are opened,
A wheelchair characterized in that the seat, the backrest and the footrest can be inserted into and removed from the upper side of the bed from the opened side in a state where the backrest and the footrest are rotated horizontally. .   The wheelchair according to claim 1, wherein the lift mechanism includes a foot pedal having a cam structure, and the standing frame is moved upward relative to the leg frame by swinging the foot pedal.   The backrest and the footrest are detachable from the seat portion, and the backrest and the footrest can be attached to either side of the seat portion. Item 3. The wheelchair according to any one of Items 2.   2. A collar-like height conversion member is provided between the leg frame and the standing frame, and the height of the seat portion is changed by replacing the height conversion member with a different length. The wheelchair according to any one of claims 3 to 4.

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