JP5812252B2 - Care vehicle - Google Patents

Description

  The present invention relates to a nursing care vehicle in which a seating portion is formed to be removable, and in particular, a moving chair frame that is a seating portion can be separated from a nursing care vehicle while a seated person is sitting. The present invention relates to a nursing care vehicle that can be excreted and bathed without imposing a burden on a caregiver by being moved by a suspension device.

  Traditionally, wheelchairs have been used as a means of movement when elderly people or people with disabilities have difficulty walking on their own, and a wheelchair that travels when the assistant pushes from behind or manually moves the rear wheel. There are known electric wheelchairs that travel by electrically moving drive wheels by the operation of a seated person (Patent Document 1, Patent Document 2). In addition, the inventor of the present application has developed a moving chair frame that can be excreted and bathed without relying on an assistant even when it is difficult to move from a bed or wheelchair to a toilet seat or bathtub by itself. (Patent Document 3).

JP 2010-68861 A JP 2010-240011 A JP 2000-126238 A

  By the way, there is a demand to move from a bed or the like to a care vehicle by himself without using a chair frame for movement as described above without placing a heavy burden on the assistant.

  An object of the present invention is to provide a care vehicle capable of fixing a chair frame for movement as described above to an assistance vehicle very easily.

The nursing care vehicle according to claim 1 is formed by connecting a pair of left and right side frames formed in an L shape by extending a seating portion frame from a lower end portion of a backrest frame in parallel with each other at a predetermined interval. A moving chair frame, a pair of front wheels and a pair of rear wheels are fixed to the lower part, a support frame for supporting the moving chair frame is formed on the upper part, and the rear part is formed to extend upward. A main body frame provided with a back column portion in which a grip is formed so that the upper end is directed rearward;
A notch fixed to both upper sides of the support frame and capable of inserting a protrusion protruding laterally from the seat frame at the upper end is formed, and the notch is held with the protrusion held in the notch. A locking piece that closes the top of the locking piece , and a fixing mechanism that is provided with an operation portion operable to close and open the cutout of the notch. And a plate-like body formed with two notches on the top, and arranged so as to overlap the front side and the rear side of the plate-like body, and can slide back and forth with respect to the plate-like body A pair of front and rear slide plates that are fixed and formed with the locking pieces, two coil springs that respectively bias the pair of front and rear slide plates in a direction approaching each other, and rotatable between the pair of slide plates And made the operation shaft is fixed to the operation shaft, a rotating member longitudinally extending can hold in a state of separating the pair of sliding plates, the operation member is exposed to the outside is fixed to the operation shaft, It is characterized by having.

  According to the first aspect of the present invention, the upper end of the support frame of the main body frame is formed with a notch for receiving a protrusion protruding laterally from the seating portion frame at the upper end, and the protrusion is held in the notch. In the state, a lock piece for closing the upper part of the notch is provided, and the lock piece is provided with a fixing mechanism provided with an operation unit that can be operated in a state in which the notch is closed and in a state in which the notch is opened. The frame can be fixed to the body frame very easily.

The side view explaining the whole structure of the nursing care vehicle of this embodiment. The perspective view explaining the structure of the chair frame for a movement. The side view explaining the care vehicle of the state which isolate | separated the chair frame for a movement, the front side frame, and the rear side frame. The side view explaining the state before attaching the chair frame for a movement to the support frame of a front frame, and its partially expanded view. 4A is a cross-sectional view taken along the line aa in FIG. 4, FIG. 4B is a cross-sectional view taken along the line bb in FIG. 8, FIG. 4C is a cross-sectional view taken along the line cc in FIG. (A) is ee sectional drawing of FIG. 7, (B) is ff sectional drawing of FIG. The side view explaining the state which mounted the chair frame for a movement on the support frame of the front frame, and its partially expanded view. The side view explaining the state which mounted the chair frame for a movement on the support frame of the front frame, and was fixed with the lock piece, and its partially expanded view. The side view explaining the state which moved the front side frame and rear side frame of the nursing care vehicle of this embodiment to the mutual extraction direction, and its partially expanded view. FIG. 4 is a partially omitted cross-sectional view illustrating the configuration of an outer fitting member and an insertion member.

  Hereinafter, the best embodiment of the care vehicle 1 of the present invention will be described with reference to the drawings. In the present embodiment, an electric nursing care vehicle will be described as an example of the nursing care vehicle 1 that the assistant moves with. However, in the embodiment of the present invention, a manual operation in which a seated person manually turns a large-diameter rear wheel. It may be a care car. As illustrated in FIG. 1, the nursing care vehicle 1 includes a moving chair frame 2 that is a portion on which a seated person sits, a front frame 3 in which a front wheel 31 is formed, a rear frame 4 in which a rear wheel 41 is formed, It consists of The front frame 3 and the rear frame 4 are connected to each other by a connecting portion 5 so as to be close to and away from each other, and the moving chair frame 2 and the front frame 3 are detachably fixed by a fixing mechanism 7.

  As shown in FIGS. 1 to 3, the moving chair frame 2 includes a backrest frame 21 that extends toward the back side of the seated person, and a seating portion frame 22 that curves from the lower end of the backrest frame 21 and extends in the horizontal direction. And a pair of left and right side frames 23 formed in an L shape, an elbow rest frame 24 extending forward from an intermediate part of the backrest frame 21, and an upward direction from the tip of the seating part frame 22, It is formed by a connecting frame 25 that connects the pair of side frames 23 and is provided at a predetermined interval in parallel with each other. Since a plurality of belts 29 are stretched between the pair of left and right side frames 23, a seated person can sit on the belt 29 and droop. The seat frame 22 is provided with two projections 26 each projecting sideways. Rings 27 are fixed to the upper ends of the connection frame 25 and the backrest frame 21 by welding or the like, and one end of a suspension rope 28 is fixed to each of the rings 27 and the other end of the suspension rope 28 is fixed. By lifting the side with a winch (not shown) or the like, the entire moving chair frame 2 can be lifted and moved in a well-balanced state while the seated person is seated.

  As shown in FIG. 2, the front frame 3 has a front wheel 31 of a free caster that is rotatably attached to a vertical shaft at a lower portion thereof fixed to the left and right. A lower frame 32 to which one end of the connecting portion 5 is fixed is formed on the upper part of the front wheel 31, and a support frame 33 that supports the moving chair frame 2 is formed on the upper part of the lower frame 32. Yes. In addition, a leg frame 34 is formed in front of the support frame 33 by being bent downward, and a footrest 35 is provided at the tip of the leg frame 34. A reinforcement frame 36 that abuts against the backrest frame 21 is formed at the rear portion of the support frame 33 so as to extend upward.

  Fixing mechanisms 7 are provided on both upper sides of the support frame 33. As shown in FIGS. 4 to 8, the fixing mechanism 7 is formed in a rectangular flat plate shape. The fixing mechanism 7 includes a plate-like body 72 having a lower portion fixed to the support frame 33 by, for example, screws or welding and having two notches 71 formed on the upper portion, and a front side and a rear side of the plate-like body 72. And a pair of front and rear slide plates 73 fixed so as to be slidable forward and backward with respect to the plate-like body 72, and two coil springs for urging the pair of front and rear slide plates 73 in a direction approaching each other. 74, an operation shaft 75 formed to be rotatable between the pair of slide plates 73, and a long rotating member 76 fixed to the operation shaft 75 and capable of holding the pair of slide plates 73 in a separated state. And an operation piece 77 fixed to the operation shaft 75 and exposed to the outside.

  Two slide grooves 78 are formed in the lower part of the slide plate 73 in the front-rear direction and spaced in a straight line, and the projecting portion 70 formed in the plate-like body 72 is inserted into the slide groove 78. The slide groove 78 is slidably supported within a predetermined range. A slide groove 78 into which the protruding portion 70 is inserted and a lock piece 79 formed in a bowl shape are formed on the upper portion of the slide plate 73, and the pair of slide plates 73 are used as a biasing force of the coil spring 74. When they are separated from each other, the lock piece 79 is concealed by being overlapped with the plate-like body 72 and opens above the notch 71, and when the pair of slide plates 73 are in contact with each other by the action of the coil spring 74. The lock piece 79 is disposed so as to protrude from the upper end of the notch 71 so as to close the notch 71 of the plate-like body 72.

  When the moving chair frame 2 is fixed to the front frame 3, as shown in FIGS. 4, 5A, and 6A, the operation piece 77 is operated to separate the slide plates 73 from each other. Keep in state. That is, by rotating the operating piece 77 and holding the rotating member 76 so that the longitudinal direction of the rotating member 76 is directed in the front-rear direction, the rotating member 76 becomes a spacer and the pair of slide plates 73 resists the bias of the coil spring 74. Thus, they are held apart from each other. At this time, the notch 71 is opened as described above. Then, using an electric winch or the like (not shown), the projection 26 formed on the seating frame 22 of the moving chair frame 2 is cut out of the fixing mechanism 7 as shown in FIGS. It is mounted on the support frame 33 from above so as to be inserted into 71. At this time, the chair frame 2 for movement may be moved while a person is seated on the chair frame 2 for movement, or may be moved in a state where no person is placed.

  When the chair frame 2 for movement has been placed on the support frame 33, the operation piece 77 is then rotated 90 degrees. As a result, as shown in FIGS. 5B, 6B, and 8, the rotating member 76 is also rotated and held so that its longitudinal direction is directed in the vertical direction. The pair of slide plates 73 is free from obstacles in the approaching direction due to the rotation of the rotating member 76 sandwiched therebetween, and the slide plates 73 are mutually connected by the coil springs 74 biasing each in the approaching direction. Slide until it touches. Since the hook-shaped lock piece 79 is formed on the upper portion of the slide plate 73 as described above, the lock piece 79 closes the notch 71 as shown in FIGS. Since it moves to the upper end of the notch 71, the protrusion 26 inserted in the notch 71 is closed in the notch 71.

  As described above, according to the fixing mechanism 7 of the present embodiment, the protrusion 26 can be closed and fixed in the notch 71 extremely easily and reliably, and therefore the moving chair frame 2 can be fixed to the support frame 33 with certainty. Can do.

  As shown in FIG. 3, the rear frame 4 has a pair of rear wheels 41 fixed to the lower portion thereof, and a control box 42 incorporating a battery and a motor is attached to the upper side of the rear wheels 41 to attach the rear wheels 41. Driving. A rear column portion 44 is formed at the rear portion of the rear frame 4 so as to extend upward and to have a grip 43 with an upper end extending rearward.

  As shown in FIGS. 9 and 10, the connecting part 5 is fixed to the rear frame 4 and has an outer fitting member 50 formed in a C-shaped section, and is fixed to the front frame 3 and slides on the outer fitting member 50. An insertion member 51 that is freely inserted and a length adjusting member that slides the insertion member 51 in the insertion direction and the extraction direction of the outer fitting member 50 (not shown) are provided. The insertion member 51 can slide smoothly when inserted into the outer fitting member 50 by rotating a plurality of balls 52 incorporated therein. The length of the connecting portion 5 constituted by the interior member 51 and the external fitting member 50 can be expanded and contracted by the length adjusting member, and as a result, the distance between the front wheel 31 and the rear wheel 41 can be expanded and contracted. For example, the vehicle can travel while maintaining traveling stability on a slope as shown in FIG.

  Needless to say, the embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the idea of the present invention.

  The nursing care vehicle 1 of the present embodiment is such that the front frame 3 and the rear frame 4 are connected by the connecting portion 5 and the distance between the front wheel 31 and the rear wheel 41 can be adjusted. The care vehicle 1 may not have such a configuration, and the front frame 3 and the rear frame 4 may be integrally formed as a main body frame.

  The nursing care vehicle 1 according to the present invention can be suitably used as a nursing care vehicle 1 used for nursing care, for example.

DESCRIPTION OF SYMBOLS 1 Care vehicle 2 Moving chair frame 7 Fixing mechanism 10 Main body frame 21 Backrest frame 22 Seat part frame 23 Side frame 33 Support frame 43 Grip 44 Back column part 71 Notch 77 Operation piece (operation part)
79 Lock piece

Claims (1)

A pair of left and right side frames formed in an L shape by extending a seating frame from the lower end of the backrest frame and connected to each other at a predetermined interval in parallel with each other, and a pair of lower side frames A front wheel and a pair of rear wheels are fixed, a support frame for supporting the moving chair frame is formed on the upper part, and a rear part is formed so as to extend upward, and an upper end is extended rearward. A main body frame provided with a back column portion with a grip formed thereon;
A notch fixed to both upper sides of the support frame and capable of inserting a protrusion protruding laterally from the seat frame at the upper end is formed, and the notch is held with the protrusion held in the notch. A locking piece that closes the top of the locking piece , and a fixing mechanism that is provided with an operation portion operable to close and open the cutout of the notch. And a plate-like body formed with two notches on the top, and arranged so as to overlap the front side and the rear side of the plate-like body, and can slide back and forth with respect to the plate-like body A pair of front and rear slide plates that are fixed and formed with the locking pieces, two coil springs that respectively bias the pair of front and rear slide plates in a direction approaching each other, and rotatable between the pair of slide plates And made the operation shaft is fixed to the operation shaft, a rotating member longitudinally extending can hold in a state of separating the pair of sliding plates, the operation member is exposed to the outside is fixed to the operation shaft, A care vehicle characterized by comprising:

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