JP5676661B2 - wheelchair - Google Patents

Description

  The present invention relates to a wheelchair, in particular, a disabled person bed that can be inserted into the lower surface of a seat in a vehicle body, the seat is split into left and right, and moved to the side of the vehicle body by an opening / closing drive means and opened. Relates to a wheelchair that can enter the car.

  The seat is divided into left and right divided pieces, and the left and right divided pieces are movable between a closed position where the opposing edges abut each other and an open position where the opposing edges are separated from each other. When the left and right divided pieces are opened, a cared person in a state of sitting on a bed, a toilet seat or the like enters the frame body and the left and right divided pieces together with the table. A possible care chair is shown in US Pat.

However, such a wheelchair does not have a structure in which the split seat is moved up and down relative to the vehicle body, and the height of the seat cannot be matched to the height of the disabled person or the height of the bed, which is extremely inconvenient. there were.

JP 2012-125513 A

  The object of the present invention is to eliminate the disadvantages of the conventional wheelchair.

The wheelchair according to the present invention opens and closes each seat, which can be opened and closed by moving it sideways in a direction in which the seat that can be split into two parts, a vehicle body having both side walls, and the seat that can be split into two parts are separated from each other. It is characterized by comprising driving means, holding plates for the opening / closing driving means for the respective seats provided on both side walls, and driving means for moving the respective seats up and down relative to the vehicle body.

  The seat opening / closing drive means of the wheelchair according to the present invention is pivotally supported by the seat with the base end pivotably supported by the holding plate and separated from each other in the horizontal plane, with one free end pivotally supported by each of the two split seats. The first and second L-shaped links extending in parallel with each other and an operating rod that pivotally supports the other free end of the first and second L-shaped links. The first and second L-shaped links are rotated by approximately 90 ° synchronously in the horizontal plane, and the two split seats are moved away from and in contact with each other in the horizontal plane.

The driving means for moving the seat up and down includes an extension portion of the holding plate inserted between the both side walls, and a fixed plate fixed to the both side walls so as to face each other with a predetermined distance above the extension portion. And the lower part is screwed into the front part of the holding plate extension part, and the upper part is connected to the front part of the fixed plate so as to be relatively rotatable to the fixed plate but not moved in the axial direction. The front vertical screw rod for seat up / down extending upward in the side wall, and the rear vertical portion for seat up / down, with its lower part screwed into the rear part of the extension part of the holding plate and its middle part protruding upward from the fixed plate a vertical threaded rod, a clan click shaft engaged with the upper end of the threaded rod for rotating the threaded rod and respectively fixed to the front vertical threaded rod and the seat up and down for the rear vertical threaded rod for vertically above the seat Chains and chains suspended on these two chains Characterized by comprising more.

  According to the wheelchair of the present invention, the seat can be moved up and down relative to the vehicle body according to the height of the disabled person and the height of the bed, so that the disabled person can sit very safely and conveniently.

It is a vertical side view of the wheelchair of this invention. It is a top view of the wheelchair of the present invention. It is a bottom view of the seat opening-closing means of the wheelchair of this invention in the state which closed the seat. It is a bottom view of a part of the seat opening / closing means of the wheelchair of the present invention in a state where the seat is opened. It is a side view of the vertical movement drive means of a seat.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the wheelchair 1 of the present invention includes a vehicle body 2 that is partially open at the back and bottom, front wheels 3 and rear wheels 4 that support the vehicle body 2, and left and right sides behind the vehicle body 2. A seat 5 provided so as to be split in two, a handrail 6 supported by the vehicle body 2, and a gap 7 formed between the lower surface of the seat 5 and the upper surface of the rear wheel 4 and into which a disabled mobility bed can be inserted. And a disabled person space 8 formed in the upper front part of the vehicle body 2, an opening / closing drive means 9 for the seat 5, and the opening / closing drive means 9 and both side walls 13 of the vehicle body 2 for holding the seat 5. A holding plate 10 supported so as to be movable up and down and an extension part 11 of the holding plate 10 are configured by a vertical movement means 12 of a seat that moves up and down relatively with respect to the vehicle body 2, and the height of the seat relative to the vehicle body 2 is determined by the disabled person. Adjust according to height and bed height To so that.

  For example, the vehicle body 2 is provided with a floor plate 14 for connecting the lower portions of the walls 13 on both sides and a guide vertical groove 15 for the holding plate 10 formed on the back surface of the wall 13.

As shown in FIGS. 3 and 4, the opening / closing drive means 9 of the seat 5 is pivotally supported by the base plate so as to be pivotable on the holding plate 10, and one free end of each seat 5 is divided into two. The first and second L-shaped links 16 and 17 that are pivotally supported on one of the five and spaced apart from each other, and the other free ends of the first and second L-shaped links 16 and 17 are connected to each other. If the common operating rod 18 pivotally supported and a spring 19 that suppresses horizontal movement of the working rod 18 are configured, and the operating rod 18 is moved to the left in FIG. The first and second L-shaped links 16 and 17 at the position shown in FIG. 3 rotate in synchronism with each other in the clockwise direction about 90 ° about the respective base ends, and as shown in FIG. One side moves to the outside of the vehicle body 2 so as to change from the closed state to the open state.

The same thing as the said movement opening / closing means 9 is provided also about the other of the seat 5 divided into two.

The vertical movement means 12 of the seat 5 is disposed so as to be opposed to the extension portion 11 of the holding plate 10 inserted between the side walls 13 and spaced apart from the upper surface of the holding plate extension portion 11 by, for example, 150 mm. The fixing plate 21 fixed to the both side walls 13, the fixing nuts 22a and 22b fixed to the lower surfaces of the front and rear portions of the holding plate extension portion 11, and the rear portion of the fixing plate 21 at a position corresponding to the rear fixing nut 22b. The provided through hole 23 and the lower part thereof are screwed into the front fixing nut 22a of the holding plate extension part 11, and the upper part thereof is rotatable relative to the fixing plate 21 at the front part of the fixing plate 21. However, it is engaged so as not to move in the axial direction, and the front vertical screw rod 24 for the seat up / down extending vertically between the side walls 13 and the lower part of the rear vertical portion 11 of the holding plate 10 Fixed nut fixed to The intermediate part and the upper part, which are not attached with screws, are projected upward through the through holes 23 of the fixing plate 21, for example, through the collar (not shown) to the fixing plate 21. The seat vertical rear vertical screw rod 25 that is not moved in the axial direction, the lower end of the seat vertical front vertical screw rod 24, and the lower end of the seat vertical rear vertical screw rod 25 are fixed respectively. The chain wheels 26a and 26b, and the chain 27 suspended on the two chain wheels 26a and 26b.
Since the wheelchair 1 according to the present invention is configured as described above, when the wheelchair 1 is used, if the moving means 20 of the operating rod 18 in the opening / closing drive means 9 of the seat 5 is operated, the split seat 5 is opened and closed. become.
If the upper end portion 25a of the rear vertical screw rod 25 in the vertical movement means 12 of the seat 5 is rotated around its axis directly or via the crankshaft 28 or the like, the rear vertical screw rod 25, the chain wheel 26b, the chain 27, the front vertical screw rod 24 also rotates through the chain wheel 26a, so that the seat 5 and its extension 11 can be moved up and down relative to the vehicle body 2 by, for example, 150 mm.

DESCRIPTION OF SYMBOLS 1 Wheelchair 2 Car body 3 Front wheel 4 Rear wheel 5 Seat 6 Handrail 7 Gap 8 Handicap space 9 Seat opening / closing drive means 10 Holding plate 11 Extension part 12 Seat vertical movement means 13 Side wall 14 Floor plate 15 Holding plate guide vertical groove 16 L Type link 17 L type link 18 Actuating rod 19 Spring 20 Moving means 21 Fixing plate 22a Front fixing nut 22b Rear fixing nut 23 Through hole 24 Seat vertical vertical screw rod 25 Seat vertical vertical screw rod 26a Chain wheel 26b Chain wheel 27 Chain 28 Crankshaft

Claims (1)

Opening / closing drive means for each seat for opening and closing the seats that can be split into two parts, the vehicle body having both side walls, the side parts that are separated from each other and moving in the direction of contact with each other, and the both sides A holding plate for the opening / closing driving means of each seat provided on each wall, and a driving means for moving the respective seats up and down relative to the vehicle body, and the opening / closing driving means for the seat has a base end First and second L-shaped links that are pivotally supported by the holding plate and pivotally supported by the seats that have one free end divided into two, and extend parallel to each other in a horizontal plane; The first and second L-shaped links are pivoted on the other free end of the first and second L-shaped links, and the first and second L-shaped links are substantially synchronized with each other in the horizontal plane by the driving of the working rods. Turned 90 ° and moved the two split seats away from and touching each other in the horizontal plane. And a driving means for moving the seat up and down includes an extension portion of the holding plate inserted between the side walls, a fixed plate fixed to the side wall so as to be opposed to and spaced above the extension portion by a predetermined distance. The lower part is screwed into the front part of the holding plate extension part, and the upper part is connected to the front part of the fixed plate so as to be relatively rotatable to the fixed plate but not moved in the axial direction. Seat vertical up / down front vertical screw rod extending upward in the side wall, and the lower part of the seat vertical extension, the lower part of which is screwed into the rear part of the holding plate extension part, and the middle part is projected upward from the fixed plate. a screw rod, a clan click shaft engaged with the upper end of the threaded rod for rotating the threaded rod, chain respectively fixed to the front vertical threaded rod and the seat up and down for the rear vertical threaded rod for vertically above the seat A car and a chain suspended on these two chains A wheelchair characterized by comprising:

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