JP7398503B2 - bathroom wheelchair - Google Patents

Description

The present invention relates to a foldable bathroom wheelchair that is particularly suitable for use as a bathroom chair for elderly people and people with physical disabilities.

For example, a bathroom chair for elderly people or physically disabled people who require special care has four legs attached to a seat pipe, and is supported by a support pipe on a handle pipe (backrest pipe) that is integrated with the legs. Those with fixed handrails and a seat sheet attached to the seat pipe, those with casters attached to the legs to make them movable, and those with the ability to rotate freely while sitting. It has been known. However, fixed, movable, or rotating bathroom chairs are inconvenient in handling, as they take up a relatively large amount of space when stored or stored when not in use, or when placed in a suitable location.

Therefore, in order to solve the above-mentioned problems with bathroom chairs, the present applicant created a structure in which the chair itself can be easily folded with a single touch, so that it can be placed upright in a narrow space when not in use and can be stored easily. , previously proposed a foldable bathroom chair that does not require a large space for storage (see Patent Document 1). This foldable bathroom chair has a structure in which the chair body can be folded back and forth, and when folded, the width of the chair body in the front and back direction is significantly reduced, making it not only convenient to carry, but also suitable for small spaces. It has the advantage that it can be placed upright and does not require a large space for storage and storage.Also, since the folding mechanism uses a cross pipe method, the structure is compact and the legs can be opened and closed with a single touch operation. It can be done easily and quickly, and since the armrests are flip-up type that link with the backrest, getting on and off the chair is easy and effortless, and it can also be flipped up on the back of the chair to stand it upright. It has the feature that it is convenient and does not get in the way when washing hands, feet, back, etc.

On the other hand, there is also known a foldable bathroom wheelchair in which the chair body is folded in the width direction instead of in the front-back direction. This foldable wheelchair for bathroom use, in which the chair body can be folded in the width direction, has a flat seat with a through hole in the center for cleaning the buttocks and is removable from the chair body. Two types are known: one that is integrally attached to the main body and one that is integrally attached to the main body. Among these, foldable bathroom wheelchairs with removable seat seats cannot be folded like the chair itself because the seat seat is made of a single piece of solid material that cannot be bent. The seat seat is removable, and when the chair is not in use, it is removed from the chair body and stored, and when the chair is in use, the chair body is placed on the seat with its legs spread apart. On the other hand, in the case of folding bathroom wheelchairs in which the seat seat is integrally attached to the chair body, the seat seat is made of a bendable material such as cloth, so the seat seat It has the feature that it can be folded like the chair itself.

Utility model registration No. 3106591

However, in the case of the above-mentioned foldable wheelchair for bathrooms in which the chair body is folded in the width direction, the chair body can be opened and closed easily and quickly with one-touch operation. The seat sheet is placed on the wheelchair surface, and when the wheelchair is not in use, the seat sheet is removed from the wheelchair body and stored, which not only takes time and effort to attach and remove, but also makes it difficult to remove the seat sheet. The drawback is that it is difficult to store and place the seat. In addition, in the case of a foldable bathroom wheelchair in which a thin seat seat made of a bendable material such as cloth is integrally attached to the wheelchair body, a bathroom using the separate seat seat may be used. Although there are no drawbacks to folding wheelchairs, the seat itself is thin and has a through hole in the center of the seat for cleaning the buttocks, so it is weaker in strength than the removable seat. It has the disadvantage of being inferior in its own durability.

The present invention has been made in order to eliminate the drawbacks of the conventional bathroom wheelchair that folds in the width direction. An object of the present invention is to provide a bathroom wheelchair which is integrally attached to the main body, which allows the seat seat and the chair main body to be folded simultaneously in the width direction with one-touch operation, and which allows the entire wheelchair to be folded compactly. It is.

The bathroom wheelchair according to the present invention has horizontal rear end portions of a pair of parallel bottom pipes 1-2 at the bottom of a pair of parallel handle pipes 1-1 (backrest pipes) separated by a predetermined interval. a pair of left and right front pipes ( seat support pipes ) connected to each other, having their rear ends fixed to the vertical part of the handle pipe 1-1 , and having their front ends arranged vertically between the bottom pipe 1-2 ; 2 , a pair of left and right seat pipes 1-3 are supported horizontally at A face seat receiver 3-1a, a pair of non-bending left and right seat seat receivers 3-1b rotatably pivoted to the front end of the seat pipe 1-3, and a seat seat receiver 3-1b fixed to the seat seat receiver 3-1b. In addition, the sheet member has a bifold structure in the width direction and has a concave portion 3-11a formed in a substantially U-shape on the opposing surface, and furthermore, two pipes are crossed in an X shape and the cross portion is rotated. Two sets of freely pivoted cross pipes 1-4 are arranged vertically between the seat pipes 1-3 , and the lower end of each cross pipe is linked to the horizontal part of the bottom pipe 1-2 . The upper part of the cross pipe is rotatably connected to the seat pipe 1-3 via a bracket, and the seat pipe 1-3 , the handle pipe 1-1 and the bottom pipe 1 are rotatably connected to each other via a bracket. -2 can be opened and closed in the width direction, and has a pair of left and right bifold structures that can be folded upward in the width direction from the center, and when in the horizontal state, there is a U-shaped through hole 3 in the center for cleaning the buttocks. -2 , the left and right seat facing surfaces are formed in a concave shape , and the seat sheet 3 has a base end rotatably pivoted to the seat pipe 1-3 . When the seat pipe 1-3 and the handle pipe 1-1 are opened and closed, the seat pipe 1-3 and the handle pipe 1-1 simultaneously rotate upward in the width direction from the center , rise up , and fold into two left and right sides. This is a characteristic feature.

In this invention, a pair of left and right seat sheets with a widthwise bifold structure are configured such that a U-shaped through hole, that is, a through hole for buttocks cleaning, is formed in the center when in a horizontal state (when in use). The opposing surface is formed in a concave shape . Furthermore, a removable step pipe is provided at the front end of the bottom type.
Furthermore, this bathroom wheelchair is equipped with a rear wheel braking type handbrake on the pair of left and right seat support pipes, and the rear wheel braking type handbrake is operated by the brake operation attached to the pair of left and right seat support pipes. By raising the lever, the rear wheel brake bar connected to the brake operating lever presses the rear wheel and applies the brakes.On the other hand, when getting on and off the wheelchair, the brake operating lever is moved so that it does not get in the way. It has a foldable mechanism.

As described above, this invention has a seat with a two-part structure in which a through hole for cleaning the buttocks is formed in the center, and is integrally attached to the chair body, and the seat seat and the chair body can be adjusted simultaneously with a single touch operation. Because it can be folded compactly in both directions and upwards, compared to conventional folding wheelchairs that use a removable seat, there is no need to assemble the chair itself or attach or remove the seat. There is no need to worry about where to store or place the face sheet, and it is convenient to put away, carry, and store the bathroom wheelchair.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an embodiment of a bathroom wheelchair according to the present invention in a leg-spread state. It is a perspective view showing a state in which the legs of the bathroom wheelchair same as the above are in the middle of being opened, with a part omitted. It is a front view which shows the leg-opening state of the bathroom wheelchair same as the above. It is a front view showing the folded state (legs closed) of the bathroom wheelchair same as the above. It is an enlarged side view which shows an example of the handbrake of a rear-wheel braking system of a bathroom wheelchair same as the above.

In the bathroom chairs shown in Figures 1 to 5, 1 is a leg body, 1-1 is a handle pipe (backrest pipe), 1-2 is a bottom pipe, 1-3 is a seat pipe, 1-4 is a cross pipe, 1 -4a is the link, 1-4b and 1-4c are the brackets, 2 is the front pipe, 3 is the seat seat, 3-1 is the seat member, 3-1a, 3-1b are the seat seat receivers, 4 is the front wheel, 4 -1 is a front wheel step guide, 4-2 is a step pipe, 4-3 is a step, 5 is a rear wheel, 5-1 is a rear wheel bearing, 6 is a handbrake for braking the rear wheel, 7 is a flip-up armrest, 8 is a backrest seat.

The bathroom wheelchair according to the present invention includes a pair of parallel left and right handle pipes 1-1, a pair of left and right bottom pipes 1-2 whose rear ends are connected to the lower end of the handle pipe 1-1, and the bottom pipe 1. A pair of left and right seat pipes 1-3 are connected to the handle pipe 1-1 at their rear ends so as to be parallel to the bottom pipe above the -2, and the two pipes are crossed in an X shape, and the cross portion is rotated. A chair body is constituted by two sets of cross pipes 1-4 which are movably pivoted, and a front pipe 2 vertically disposed between the bottom pipe 1-2 and the seat pipe 1-3. The pipe 1-3 has a seat sheet 3 which is folded in half in the width direction.

The seat sheet has a bifold structure in the width direction, and the handle pipe 1-1 side end is rotatably connected to the seat pipe 1-3, and a connecting pin 3-1c is attached to the center part so as to be bendable in the width direction. It is fixed to a pair of left and right seat seat receivers 3-1a connected at The sheet member 3-1 is folded in half in the width direction and has a concave portion 3-11a formed in a substantially U-shape on the opposing surface. The pair of left and right seat seats 3, which are folded in two in the width direction, are maintained in a horizontal state when the chair is in use, and have a U-shaped through hole in the center that opens at the front , that is, a through hole 3-2 for butt cleaning. is formed, and when the chair is not in use, it rotates only upwards using the seat pipe 1-3 as a fulcrum and is folded .

The handle pipe 1-1 and the bottom pipe 1-2 are connected via a bracket b1 with a rear wheel bearing fixed to the rear end of the bottom pipe 1-2, and further via a bracket b2 fixed to the handle pipe 1-1. Sheet pipes 1-3 are installed horizontally. In addition, the two sets of cross pipes 1-4 each have two pipes crossed in an X shape, and the cross portions are rotatably connected by a connecting pin p1, and the lower end of the cross pipes 1-4 The upper end of the cross pipe 1-4 is connected to the bottom pipe 1-2 via a bracket 1-4b with a link 1-4a rotatably fitted on the outside, and the upper end of the cross pipe 1-4 is connected to the seat via a bracket 1-4c. Connected to pipe 1-3. That is, the chair body is provided with the left and right handle pipes 1-1 and bottom pipes 1-2 that can be opened and closed in the width direction by the action of two sets of cross pipes 1-4, and one end is rotatable on each seat pipe 1-3. The seating surface is formed by fixing the bifold structure seating sheet 3 to the freely pivotally mounted seating surface seat receivers 3-1a and 3-1b, and the left and right handle pipes 1-1 When opened, the seat sheet 3 opens horizontally to form a seat made of a single sheet, and when the handle pipe 1-1 is closed, the seat sheet rises upward from the center and folds into left and right halves. It is designed so that it can be closed in the width direction.

A front wheel 4 and a rear wheel 5 are attached to the tip and rear ends of the bottom pipe 1-2, respectively. The front wheel 4 is rotatably attached via casters 4a integrally attached to the tips of the left and right step guides 4-1, and the rear wheel 5 with a large hand rim is a bracket with a rear wheel bearing fixed to the bottom pipe 1-2. It is pivoted to b1. Furthermore, a step pipe 4-2 is detachably and rotatably attached to the tip of the front wheel step guide 4-1 using a concave-convex fitting method, and a step 4-3 is attached to the tip of the step pipe 4-2. is attached removably.

The hand brake 6 for braking the rear wheels employs a system in which the rear wheels are braked by operating a lever on the side of the chair body, and the structure of the hand brake 6 for braking the rear wheels is shown in Figs. 1, 3, and 5. As shown in the figure, there is a base plate 6-1 fixed to the side surface of the front pipe 2, which is one of the constituent members of the chair body, and the lower part of the base plate 6-1 can be rotated in the front and back direction using a screw pin 6-3. A substantially right-angled L-shaped member 6-2 is pivoted on the base plate 6-1 with a screw pin 6-7 on the lower end side of the L-shaped member 6-2 so as to be rotatable in the front and rear directions. A movable link 6-4, a connecting link 6-5 connecting the L-shaped member 6-2 and the movable link 6-4, and a rod-shaped brake bar 6- protruding horizontally from the bottom of the movable link 6-4. 6, and a brake operating lever 6-8 which is pivotally attached to the upper end of the right-angled L-shaped member 6-2 so as to be foldable in the front and back direction. The upper part of the L-shaped member 6-2 is inserted into the groove 6-9 formed in the longitudinal direction in the center of the lever so that it can be tilted forward so as not to get in the way. It is pivoted so that it can rotate in both directions.
That is, when the brake operating lever 6-8 is raised, the rear wheel braking force by the brake bar 6-6 is released and the rear wheel braking handbrake 6 becomes movable. When you apply force forward, the brake bar 6-6 applies braking force to the rear wheels and applies the brakes, and when the brake operating lever 6-8 is folded forward, the brake operating lever 6-8 does not get in the way. You can get on and off the train.

The flip-up armrest 7 has its rear end attached to the handle pipe 1-1 so as to be vertically rotatable and supported substantially horizontally. Further, the backrest seat 8 is detachably attached to the handle pipe 1-1. Note that the flip-up armrest 7 and backrest seat 8 are not limited to those shown here, and various types can be used.

In the bathroom wheelchair with the above structure, as shown in FIGS. 1 and 2 when the legs are spread, the widthwise spacing is 2. It is held by the action of the set of cross pipes 1-4. At this time, the bi-fold structure seat sheet 3 whose one end is pivotably attached to each seat pipe 1-3 is held horizontally by a pair of left and right seat seat receivers 3-1a and 3-1b. A U-shaped through hole 3-2 for butt cleaning is formed in the center.

In addition, when folding the bathroom wheelchair, when the left and right handle pipes 1-1 are closed, the bi-fold structure seat sheet 3 is pushed up from the bottom to the top, and the two sets of cross pipes 1-4 act in a single touch. It can be easily folded in the width direction with a single motion. In other words, when the seat sheet 3 is pushed up from the bottom to the top, the two sets of cross pipes 1-4 move downward, causing the seat sheet 3 to rise upward from the center and fold into left and right halves, so that it is folded in the width direction. When the handle pipe 1-1 and the bottom pipe 1-2 are closed to overlap each other as shown in FIG. 4, the seat pipe 1-3 is moved further upward.

When using a bathroom wheelchair in the folded state, the two sets of cross pipes 1-4 can be opened in the width direction by opening the handle pipe 1-1 and the bottom pipe 1-2 in the width direction by performing the opposite operation to the folding state. The legs are opened in the direction. Then, the seat seat receivers 3-1a and 3-1b fixed to the seat pipe 1-3 are held horizontally, and a U-shaped through hole 3-2 for butt cleaning is formed in the center. This completes the opening of the legs.

When using a wheelchair, the flip-up armrest 7 is held horizontally, and the step 4-3, which is removably attached to the tip of the step pipe 4-2, is also used as necessary. It can also be removed from the main body when not in use or when stored.

As described above, the present invention provides a two-part seat with a U-shaped through hole for buttocks cleaning in the center when the legs are open, or is integrally attached to the chair body, and when the legs are closed, the seat is attached to the chair body. The chair itself has a structure that allows it to be folded in the width direction easily and quickly with one-touch operation, making it not only convenient to carry, but also because the seat is integrally attached to the chair body. The means for attaching and detaching the seat is omitted, and there is no need to worry about where to store or put the removed seat sheet. Furthermore, the seat sheet with a two-part structure can be made of a solid material of a desired thickness that cannot be easily bent, so it can be made of a material that is strong and durable. .

1 Legs 1-1 Handle pipe 1-2 Bottom pipe 1-3 Seat pipe 1-4 Cross pipe 1-4a Link 1-4b, 1-4c, b2 Bracket 2 Front pipe 3 Seat sheet 3-1 Seat member 3- 1a, 3-1b Seat support 3-1c Connecting pin 3-11a Recess 3-2 Through hole 4 Front wheel 4-1 Front wheel step guide 4-2 Step pipe 4-3 Step 4a Caster 5 Rear wheel 5-1 Rear wheel Bearing 6 Handbrake for rear wheel braking 6-1 Base plate 6-2 L-shaped member 6-3, 6-7 Screw pin 6-4 Movable link 6-5 Connection link 6-6 Brake bar 6-8 Brake operating lever 6- 9 Concave groove 6-10 Axis pin 7 Flip-up armrest 8 Backrest seat p1 Connecting pin b1 Bracket with rear wheel bearing

Claims (1)

The horizontal rear ends of a pair of parallel bottom pipes 1-2 are connected to the lower parts of a pair of parallel handle pipes 1-1 (backrest pipes) separated by a predetermined interval, and the handle pipes 1-1 A pair of left and right sheet pipes 1- whose rear end portions are fixed to the vertical portions of the sheet pipes 1-2 and whose front end portions are horizontally supported by a pair of left and right front pipes 2 arranged vertically between the bottom pipe 1-2. 3, the seat pipe 1-3, the seat seat 3, the seat seat receiver 3-1a connected to the center part of the seat seat 3 so as to be bendable in the width direction, and the front end of the seat pipe 1-3. a pair of non-bending left and right seat seat receivers 3-1b rotatably pivoted to the seat seat receivers 3-1b; a recess 3 whose facing surface is substantially U-shaped and fixed to the seat seat receivers 3-1b; -11a, with a sheet member having a bifold structure in the width direction, and two sets of cross pipes 1-4 in which two pipes are crossed in an X shape and the cross portions are rotatably pivoted. The lower end of each cross pipe is rotatably connected to the horizontal part of the bottom pipe 1-2 via a link , and the upper part of the cross pipe is arranged vertically between the sheet pipes 1-3. is rotatably connected to the seat pipe 1-3 via a bracket, and the seat pipe 1-3 , the handle pipe 1-1 , and the bottom pipe 1-2 are provided so as to be openable and closable in the width direction. It has a bi-fold structure with a pair of left and right sides that can be folded upward in the width direction, and when in the horizontal position, the facing surfaces of the left and right seats are concave so that a U-shaped through hole 3-2 for butt cleaning is formed in the center. The seat sheet 3 has a base end rotatably connected to the seat pipe 1-3, and the seat pipe 1-3 and the handle pipe 1-3. A bathroom wheelchair characterized in that it has a structure in which it rotates upward in the width direction from the center part simultaneously with the opening/closing operation of item 1 , stands up , and is folded into left and right sides.

Images