JP6113689B2 - Wheelchair for sitting bath - Google Patents

Description

  The present invention relates to a sitting wheelchair. More particularly, the present invention relates to a wheelchair for sitting in a nursing facility or a hospital for carrying a cared person such as an elderly person or a sick person while sitting on a chair in a bathtub.

  The sitting wheelchair is placed in a large bathtub with a slope with the cared person on it, or the unit that the cared person wants to ride is separated from the traveling body and lifted to the personal bathtub. It is used by carrying it in.

On the other hand, caregivers such as elderly people and sick people have various physiques, such as fat people, thin people, tall people and low people, but the angle between the seat surface and the backrest in the above-mentioned seating wheelchair is almost right angle It was fixed with.
In this case, a fat person or a person who was thin and swelled felt pain because he was pressing the abdomen just by sitting on the chair.

  The prior arts of Patent Documents 1 and 2 propose a wheelchair that can be reclined, but the angle between the seating surface and the backrest remains fixed and cannot be changed. And the backrest tilted back and forth. Such tilting in the front-rear direction is described as reclining, but since the angle between the seating surface and the backrest remains almost right, reclining in a true sense is not possible. Therefore, those who were fat or angry had to feel pain.

JP-A-11-206816 JP 2009-112789 A

  In view of the above circumstances, an object of the present invention is to provide a reclining seating wheelchair that variably adjusts an angle between a seating surface and a backrest.

The wheelchair for sitting bath according to the first invention comprises a traveling body and a chair unit, the traveling body comprises a traveling frame and wheels attached to the traveling frame, the chair unit comprising a seat surface and a backrest, A slide guide that slides the seat surface in the front-rear direction, a link mechanism that tilts the backrest in conjunction with a slide operation of the seat surface, and a lock unit that locks the seat surface at an arbitrary slide position. wherein the link mechanism includes a link, the lower end of the link is connected by a pin to the rear end of the seat surface, the upper end of the link is coupled by a pin to the backrest, the seat surface Reclining between the seat surface and the backrest so that the backrest tilts backward when slid forward, and the backrest tilts forward when the seat surface slides backward. Characterized in that it is configured to change a degree.
The seating wheelchair according to a second aspect of the present invention is the seating wheelchair according to the first aspect, wherein the slide guide is a guide rail disposed to extend forward and backward below the seating surface, and a roller attached to the seating surface. It consists of a guide roller that rolls while being guided by a rail.
According to a third aspect of the present invention, there is provided a seating wheelchair according to the second aspect, wherein the locking means is attached to the seating surface with a plurality of pin holes formed at intervals in the front-rear direction on the guide rail. The lock pin is inserted into the hole.
The seating wheelchair according to a fourth aspect of the present invention is the seating wheelchair according to the first, second or third aspect, wherein a catch for detachably engaging the chair unit is attached to the traveling body. When the chair is lowered onto the traveling body, the catch receives and engages with the member to be caught on the chair unit side, and when the chair unit is lifted from the traveling body, the catch releases the member to be caught. It is characterized by.
The seating wheelchair according to a fifth aspect of the invention is characterized in that, in the fourth aspect of the invention, the catch is provided with a lock mechanism that holds or releases the engaged state in which the catched member is received and engaged.

According to the first invention, the following effects are obtained.
a) Since the traveling unit is attached to the chair unit, it is possible to move or sit down with a person sitting. And if the seat is guided by the slide guide and slid back and forth to adjust to the physique of the cared person, the backrest also tilts via the link mechanism, so the reclining angle between the seated surface and the backrest that is comfortable for the cared person Can be adjusted automatically, and the cared person can sit comfortably without feeling pain.
b) Because the backrest tilts backward when the seating surface is moved forward by the link of the link mechanism, the reclining angle between the seating surface and the backrest increases, and when the seating surface is retracted backward, the reclining angle between the seatback and the backrest decreases. Therefore, it is possible to automate the angle adjustment according to the care receiver's physique. For this reason, if the slide width is increased, even a cared person with a large physique can sit comfortably without feeling the pain of pressing the abdomen.
According to the second invention, since the roller on the seat surface side is guided by the guide rail and rolls, the seat surface can be slid smoothly and stably.
According to the third aspect of the invention, the seat surface can be fixed at an arbitrary slide position by selecting a pin hole into which the lock pin is inserted and can be fixed at an arbitrary reclining angle, so that it can be used safely.
According to the fourth aspect of the invention, the chair unit can be fixed to the traveling body by simply lowering the chair unit onto the traveling body, and the catch can be released simply by raising the chair unit. Therefore, the chair unit is separated from the traveling body. It is easy to transport only the unit to the bathtub.
According to the fifth aspect of the invention, if the engagement state in which the catch receives and engages the member to be caught is locked by the lock mechanism, the cared person can be transported with the chair unit fixed to the traveling body. high.

It is a side view of the wheelchair for seat bathing concerning one embodiment of the present invention. It is a front view of the wheelchair for sitting bath shown in FIG. It is a top view of the wheelchair for sitting bath shown in FIG. It is a side view of the wheelchair for sitting bath which shows a catch part. It is a side view of the wheelchair for sitting bath in a reclining state. It is a top view of the wheelchair for sitting bath in a reclining state.

Next, an embodiment of the present invention will be described with reference to the drawings.
Based on FIGS. 1-3, the basic composition of the wheelchair A for sitting of this embodiment is demonstrated.
The sitting wheelchair includes a traveling body 50 and a chair unit 1.
The traveling body 50 includes a traveling frame 51 and wheels 52 attached to the traveling frame 51. The traveling frame 51 can take an arbitrary shape, and the wheel 52 can be a wheel such as a known caster without particular limitation. In short, it is only necessary to have a traveling function as a wheelchair. A known footrest 53 is attached in front of the traveling frame 51.

The chair unit 1 has a seating surface 2 and a backrest 3, the seating surface 2 is attached to a seating surface frame 20, and the backrest 3 is attached to a backrest frame 30.
As shown in FIG. 2, the backrest frame 30 is configured by standing two vertical frames 31, 31 apart from each other on the left and right sides, and fixing them with a horizontal plate 33 attached up and down. A hook 34 is attached to the upper end of the backrest frame 30. This is used when the chair unit 1 is lifted by a lift or the like and moved to a bathtub.

  The seat frame 20 is composed of two round pipes 21 and 21, and the base portion thereof is fixed to the lower end portion of the vertical frame 31 of the backrest frame 30. Further, the end portions of the round pipes 21 and 21 are connected by a horizontal plate 22.

Next, the characteristic part of the wheelchair A for sitting bath of this embodiment is comprised.
(Slide guide)
Guide rails 23 and 23 are respectively attached to the inner sides of the left and right round pipes 21 and 21 of the seating surface frame 20. The guide rail 23 is a metal material having a U-shaped cross section.

  The rear end portion of the seat frame 20 and the lower end portion of the backrest frame 30 are connected to each other by a pin 25. The angle between the seat frame 20 and the back frame 30 is fixed and is substantially a right angle.

Rollers 24 and 63 are attached to the lower surface of the seat surface 2 via brackets. The rollers 24 and 63 are provided in two rows corresponding to the left and right guide rails, and a total of four rollers are provided, one at the front and the rear. The rollers 24 and 63 roll in the guide rail 23.
The rollers 24 and 63 and the guide rail 23 constitute a slide guide as defined in the claims.

(Locking means)
FIG. 1 shows a state in which the seat surface 2 is retracted, and FIG. 5 shows a state in which the seat surface 2 is pulled out.
A lock device for locking the slide position of the seating surface 2 is provided.
A pin device 41 is attached to the lower surface of the seat surface 2 via a bracket. A pin hole 42 is formed in the round pipe 21 of the seating surface frame 20. The pin holes 42 are formed at three places with a gap in the longitudinal direction of the round pipe 21, but may be two places or less, or may be four places or more.

  The pin device 41 pushes and urges the pin with a spring or the like, but can be disengaged from the pin hole 42 when the grip 43 is pulled by a human hand. Therefore, by selecting the pin hole 42, the seat surface 2 can be fixed in the pulled-out state (FIG. 5), the retracted state (FIG. 1), and the intermediate state thereof.

  The backrest 3 is formed into a long square shape by a pipe 3a, and a sheet, a plate, or the like is attached thereto. Its structure is arbitrary. The backrest 3 is attached to the upper end portion of the backrest frame 30 so that the upper end portion of the backrest 3 can be tilted by a shaft 36. Reference numeral 37 denotes a handrail attached to both sides of the backrest 3.

(Link mechanism)
A link mechanism 60 is attached between the seat surface 2 and the backrest 3. 61 is a link, and the upper end of the link 61 is connected to the lower end portion of the backrest 3 by a pin 62, and the lower end is connected to the rear end portion of the seating surface 2 by a pin 63.
For this reason, when the seat surface 2 is moved forward, the backrest 3 tilts backward, so that the reclining angle between the seat surface 2 and the backrest 3 increases, and when the seat surface 2 is retracted rearward, the reclining angle between the backrest 3 is increased. Get smaller. That is, the angle Q with the backrest 3 when the seat surface 2 is pulled back is about 95 ° to 100 °, but the angle Q with the backrest 3 when the seat surface 2 is pulled out is 105 °. Increases to about 110 °. For this reason, angle adjustment according to a caregiver's physique is attained.

(catch)
As shown in FIGS. 3 and 4, catches 70 are attached to the left and right upper surfaces of the traveling frame 51. Further, a catch bar 71 as a member to be caught is attached to the lower surface of the seating surface frame 20.
The catch 70 closes and catches the catch claws 72 and 73 when the catch bar 71 descends, and opens the catch claws 72 and 73 to release the catch when the catch bar 71 rises. is there.
When the chair unit 1 is raised by the catch 70, the chair unit 1 can be separated from the traveling frame 51, and when the chair unit 1 is lowered, the chair unit 1 can be fixed to the traveling frame 51.

  The catch 70 is preferably attached with a lock mechanism. This locking mechanism may be any mechanism as long as it can be locked or released in a state where the catch rod 71 is engaged with the catch 70. For example, it is possible to select to hold the locking claws 72 and 73 in a closed state or in an open state, or to insert and detach a rod-like or plate-like locking member to catch the catch rod 71 What is necessary is just to be able to restrain or release the separation from 70.

  If the lock mechanism as described above is used, the catch 70 can be kept engaged with the catch 70. In this state, since the chair unit 1 is fixed to the traveling body 50, when the cared person is pushed on the chair unit 1 and transported, the chair unit 1 is not detached, so that safety is improved.

Next, a method for using the sitting bath wheelchair according to the present embodiment will be described.
Since the traveling unit 50 is attached to the chair unit 1, the chair unit 1 can be moved in a state where a person is seated, or can be moved to a large bathtub for sitting. In addition, only the unit 1 on which the care recipient is to be seated can be lifted by the lift of the bathing facility and carried into and out of the small bathtub.
In this operation, the chair unit 1 can be fixed to the traveling body 50 with the catch 70 simply by lowering the chair unit 1 onto the traveling body 50, and the catch 70 is released simply by raising the chair unit 1. 1 is separated from the traveling body 50, and it becomes easy to convey only the chair unit 1 to the bathtub.

Next, advantages of the reclining function in this embodiment will be described.
(1) The seat surface 2 can be guided back and forth by a slide guide. A symbol F shown in FIG. 6 is a slidable interval.
In this way, when the position of the seat surface 2 is adjusted in accordance with the physique of the cared person, the backrest 3 also tilts via the link mechanism 60, so that the reclining angle between the seat surface 2 and the backrest 3 is comfortable for the cared person. Can be adjusted. This adjustment angle is about 105 ° to 110 °, but if the slide width is increased, a larger angle can be supported. Therefore, even if the physique is different, the cared person can sit comfortably without feeling the pain of pressing the abdomen.

(2) Since the backrest 3 tilts backward when the seating surface 2 is moved forward, the angle between the seating surface 2 and the backrest 3 increases, and when the seating surface 2 is retracted, the angle between the backrest 3 decreases. Therefore, it is possible to adjust the angle according to the physique of the care recipient.
(3) Since the roller 24 on the seat surface 2 side is guided by the guide rail 23 and rolls, the seat surface 2 can slide smoothly and stably.

(4) By selecting the pin hole 42 into which the lock pin of the pin device 41 is inserted, the seat surface 2 can be fixed at an arbitrary slide position and can be fixed at an arbitrary reclining angle, so that it can be used safely.

  The sitting wheelchair of the present invention is mainly used in a nursing facility or a hospital, but can also be used for home use.

DESCRIPTION OF SYMBOLS 1 Chair unit 2 Seat surface 3 Backrest 20 Seat frame 30 Backrest frame 50 Running body 60 Link mechanism 70 Catch

Claims (5)

It consists of a running body and a chair unit,
The traveling body includes a traveling frame and wheels attached to the traveling frame,
The chair unit
A seat surface and a backrest; a slide guide that slides the seat surface in the front-rear direction; and a link mechanism that tilts the backrest in conjunction with a sliding motion of the seat surface;
Locking means for locking the seating surface at an arbitrary sliding position;
The link mechanism is
Includes a link, the lower end of the link is connected by a pin to the rear end of the seat surface, the upper end of the link is coupled by a pin to said backrest,
The reclining angle between the seating surface and the backrest is changed so that when the seating surface is slid forward, the backrest is tilted backward, and when the seating surface is slid backward, the backrest is tilted forward. It is comprised so that the wheelchair for sitting baths characterized by the above-mentioned. The slide guide is
A guide rail arranged to extend back and forth below the seat surface;
The wheelchair for sitting bath according to claim 1, comprising a roller attached to the seating surface and rolling while being guided by the guide rail. The locking means is
A plurality of pin holes formed at intervals in the front-rear direction in the guide rail;
The wheelchair for sitting bath according to claim 2, comprising a lock pin attached to the seat surface and inserted into an arbitrary pin hole. A catch for detachably engaging the chair unit is attached to the traveling body, and the catch receives a member to be caught with the catch chair unit when the chair unit is lowered onto the traveling body. The wheelchair for sitting bath according to claim 1, wherein the catch releases the member to be caught when the chair unit is raised from above the traveling body. The seating wheelchair according to claim 4, wherein a lock mechanism for holding or releasing the engaged state in which the catched member is received and engaged is attached to the catch.

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