JPH0367697B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> This invention relates to a wheelchair for disabled persons used by physically disabled persons, sick persons, elderly persons, etc. who are unable to walk.

≪Prior Art≫ Wheelchairs are powerful assistive devices that are indispensable for people with disabilities who have difficulty walking to live independent lives. Transferring to and using a stand, shower stand, or other stand has become extremely difficult.

Transfer methods for wheelchairs vary depending on the degree of disability, but when a person with a disability uses their upper limbs to move on their own, it often involves pain from supporting the weight and the risk of falling, and it also requires a caregiver to hold the person in their arms. When this is done, problems arise such as caregivers often developing lower back pain, and the physical and mental burdens on the disabled and their caregivers are significant and serious.

Various devices have been used in the past to reduce or eliminate the difficulty of such transfer operations and their use.

(1) For example, a lifter device is intended for indoor use. This floor traveling lifter is
This is a device that wraps the body with a seatbelt-like hanger hanging from the arm of a support column with casters, lifts the body, and moves the body to a necessary location, such as from a wheelchair to a bed.

(2) Ceiling-type lifters are also known, and these are devices that move up and down by wrapping the body around a seatbelt-like body sling hanging from a rail installed on the ceiling wall.

(3) Apart from this, there are also known assistance vehicles and wheelchairs with wheels with rims that have limited purposes such as indoor use for toileting or showering, and these have seats with holes for defecation. This vehicle body is used by being placed on top of the toilet bowl from the rear.

Furthermore, improved versions of the wheelchair itself are also known.

(4) The invention described in Japanese Patent Publication No. 51-6427 relates to a wheelchair for the physically handicapped that can be moved up and down while keeping the seat parallel to the floor surface, thereby allowing the chair to move up and down as needed. You can freely adjust the height of
The purpose is to enable people to live together on an equal basis with normal healthy people. ``A battery, lifting motor, speed reducer, etc. were installed,'' and the driving force of these and several fan-shaped gears was used to raise and lower the bottom plate and tilt the back plate.

(5) The invention described in Japanese Patent Publication No. 51-49095 is ``a system that allows a physically disabled or sickly patient who is lying in a low position to be easily seated on a chair, thereby making it possible to easily move him or her to another location.'' Regarding the "folding chair", it is a device that allows the front and rear legs of the chair to be spread out and folded into a flat shape similar to a stretcher.

(6) The invention described in Japanese Patent Publication No. 55-26025 is ``a backrest of a wheelchair when transferring to and from a bed;
This invention relates to a wheelchair for use by a physically handicapped person in which the seat and footrest can be positioned substantially on the same horizontal plane as the top surface of the bed.

(7)a Furthermore, in order to reduce the difficulty of transferring wheelchair users during X-ray examinations, etc., the present inventor proposed, in Japanese Patent Application Laid-Open No. 101227/1983, "a wheel at the bottom and a backrest support at the upper end. We are proposing an "assistance vehicle" that has an approximately U-shaped support column, a removable backrest, and a removable seat.

(7)b In addition, the present inventor has a similar purpose,
``A assistance vehicle with an open rear section, a support column that runs side by side in a roughly U-shape, an armrest support column and a backrest support that rise outward from the front part of the support support, and a removable seat and backrest section. ” was proposed in Utility Model Application Publication No. 119906/1983.

(7)c In Japanese Patent Application Laid-Open No. 63-11155, the present inventor has also disclosed that in the daily life of physically disabled people,
To solve the difficulty of transferring to the toilet seat when defecating,
Proposal of ``a wheelchair for the disabled that has a defecation port that can be opened and closed in the seat, and a space below the seat that allows the seat to be transported from the rear onto a facility's Western-style toilet bowl.'' This is disclosed as having a structure in which the seat part has a pull-out type or a hanging type lid plate with a hinge, and the defecation port is opened and closed by this.

(7)d Similar to this objective, the present inventor proposed in Utility Application No. 61-102638 a ``wheelchair for the disabled with a wheelchair seat that can be opened and closed'', which has multiple seat plates. Connected by hinges,
It is designed to be folded up for defecation.

≪Problems to be Solved by the Invention≫ The various devices described above are used when transferring and using a handicapped person from an assistance vehicle or wheelchair to a bed, a toilet seat, an X-ray fluoroscopy table, etc. However, the lifter device (1) requires a relatively large floor space for movement and storage, and has the disadvantage that it is not suitable for Japan's narrow and multi-level housing situation.

(2) A mobile device that is suspended from the ceiling also requires ceiling rail equipment, which has many problems with Japanese house structures, and the device is also large and expensive. I'm holding it.

Lifter devices such as (1) and (2) above have also been pointed out to have other problems, such as causing psychological fear in people with disabilities who are suspended.

Furthermore, purpose-specific wheelchairs such as (3) are used only for toilet use, showering, and bathing, and are not suitable for comfortable use in normal times. Due to the difficulty of transferring to a wheelchair, the current situation is that even if a wheelchair is purchased with great effort, its use often decreases over time.

In addition, prior art (4) and (6) attempt to reduce the difficulty of transferring people with disabilities by raising and lowering the seats of wheelchairs, but they do not work well with toilet seats, showers, etc. It is not a device that can withstand everyday use. In addition, devices such as batteries, lifting motors, speed reducers (Japanese Patent Publication No. 51-6427), hydraulic hoists, etc. (Japanese Patent Publication No. 55-26025), as well as numerous gears, links, etc. are required, making the device complex. However, the wheelchair itself is heavy, making it inconvenient to carry and difficult to operate.

Furthermore, in (5), the assistance vehicle is folded flat like a stretcher while the disabled person is placed in the seat, and even with this, at least two nurses are required to use a high bed such as a bed. You need to carry it by holding it from front to back. This configuration has the problem of not being able to satisfy both the transfer action and the use action in daily life.

The present inventor proposed prior art (7)a and (7)b in order to solve these problems, especially the problems of transferring from an assistance vehicle or wheelchair to an X-ray transmission table.

Furthermore, the present inventor has proposed prior art (7)c in order to alleviate the difficulty of transferring from a toilet to a toilet bowl in social life for disabled persons and the like.

However, in prior art (7)c, the lid plate is opened and closed by pulling it out and pushing it in when defecating, so when the lid plate is pushed in and closed, the buttocks fit into the toilet opening, and the lid plate closes the buttocks. Since it pinches the flesh of the body, it is difficult to fold it smoothly, and it is also difficult to support the body when lifting the waist.

In the above invention, the present inventor believes that a wheelchair for the disabled should have a passenger seat as well as a passenger seat. In the present invention, we have disclosed the idea that this should be eliminated, and proposed a configuration of a wheelchair equipped with a new seat mechanism to replace it.

This invention provides convenience for people with disabilities to transfer to a wheelchair or from a wheelchair to other places, and convenience for use in daily life such as toileting, showering, or normal movement. It is a wheelchair for users, and has a simple and lightweight structure.
To provide a wheelchair for disabled persons that is convenient to carry, easy to work with, and allows hygienic use of toilets.

≪Means for Solving the Problems≫ This invention consists of two vertical columns that have front wheels attached to their lower parts and are erected so as to be able to rise and fall freely, and that extend horizontally backward from the bottom of the vertical columns so that they are parallel to each other. The rear end is extended and the rear end forms a free end, and the rear end has two lower struts to which the rear wheels are attached, and the vertical strut is above the lower strut and extends horizontally backward from the vertical strut and both are parallel to each other. A rear seat and a front seat are configured such that two seat columns extend to the rear end and form a free end, and a normal seat plate and a passenger seat plate attached between the seat columns can be exchanged. A combined seat, and two armrest supports whose lower ends are attached to a vertical support, extend horizontally and parallel to each other above the seat support, and whose rear ends form a free end and are erected. and a backrest seat that is removably attached between the upright parts of the armrest support, and a connecting means that connects the lower support and the seat support at the rear of the vertical support so that they can be raised and lowered. A wheelchair for persons with disabilities, and two vertical columns with front wheels attached to the bottom that can be raised and lowered freely, and a wheelchair that extends horizontally and parallel to the rear from the bottom of the vertical columns. The end part forms a free end part, and the rear end has two lower struts to which the rear wheels are attached, and a vertical strut above the lower struts extends horizontally and parallel to the rear from the vertical strut. A seat consisting of a rear seat and a front seat, the rear end of which is configured to have two seat supports forming a free end, and a normal seat plate and a passenger seat plate attached between the seat supports to be interchangeable. and two armrest supports, the lower end of which is attached to the vertical support, extends horizontally and parallel to the upper part of the seat support, and the rear end forms a free end and is erected. It is characterized by comprising a backrest sheet that is removably attached between the erected parts of the pillars, and a connecting means that connects the rear end of the lower pillar and the rear end of the seat pillar at the rear of the vertical pillar so as to be able to rise and lower. Provide wheelchairs for people with disabilities.

≪Function≫ The wheelchair seat is removable from the seat support,
It consists of a rear seat consisting of a replaceable regular seat plate and a passenger seat plate, and a detachable front seat. A regular seat plate is attached to the rear seat when moving around in a normal wheelchair, and a toilet seat plate is replaced with this when using the toilet. At this time, the front seat remains, and the disabled person can easily change the rear seat while resting his or her thighs on the front seat.

In addition, since the seat support on which the seat can be attached and detached can be raised and lowered, the seat can be adjusted to suit the height of the bed, bathroom shower stand, work table at home, examination table, treatment table, X-ray fluoroscopy table, etc. in hospital facilities. If you go up and down, turn the car body backwards and place the seats on those platforms, then remove the backrest and pull the car body forward.
The body remains on the platform along with the seat and is transferred.

Furthermore, the seat can be more easily raised and lowered by a lifting device such as a jack or an electric lifting device. In addition, by lowering these elevating devices and separating them from the seat support, a platform such as a bed can fit into this space, so it does not interfere with loading the wheelchair onto the bed from the rear and placing the seat on the platform.

<<Example>> Drawing showing an example of this invention, that is, a first perspective view of a wheelchair which is one example of this invention.
Figures 2 to 4 are perspective views of the seats;
Figure 3, also when the rear seat is a stool board,
FIG. 4 is a perspective view of a wheelchair equipped with a pantograph-type hand jack as a lifting device; FIG. 6 is a perspective view of a wheelchair with hand rims.
The description will be made based on FIG. 7, which shows a side view of the electric wheelchair.

The wheelchair 1a shown in FIG. 1 is a basic type wheelchair without a lifting device.

The seat 14 can be raised and lowered in stages and is used while being fixed at a required height.

The wheelchair 1a is constructed as a frame by appropriately combining or bending supports made of tubular bodies. In this embodiment, each strut is made of a circular tubular body, but it may also be a square tubular body or other polygonal tubular body.

The lower support 2 is provided horizontally in parallel to the left and right sides of the lower part of the wheelchair 1a, and includes a front wheel 3 and a rear wheel 4, and the front part is bent in the vertical direction to form a vertical support 5, respectively. The left and right vertical columns 5 are bent rearward at the upper part to form a substantially horizontal armrest column 6. The armrest support 6 forms a backrest support 7 that is bent upward at the rear and inclined slightly diagonally rearward.

An elevating column 8 that can be raised and lowered vertically with respect to the vertical column 5 is fitted into the left and right vertical columns 5. The lifting column 8 is provided with a fixing screw 11, whereby the lifting column 8 can be raised and lowered in stages relative to the vertical column 5, and the seat 14 can be raised to a required height, that is, slightly higher than the height of the bed or toilet seat. Can be fixed high. The fixing screws 11 are configured to be able to fit into fixing holes provided in an appropriate number above and below the vertical support 5. The elevating column 8 is formed with a seat column 9 projecting rearward from an appropriate position on its upper part.

A seat column support column 10 is erected at the rear end of the lower column 2 to support the rear end of the seat column 9. The seat strut support strut 10 is constructed by fitting two pipes vertically and telescopically, and its length is adjusted by a fixing screw 40. Furthermore, the seat column support column 10 is
The upper part is composed of an elastic body 44 such as a spring, and the upper end is configured to be able to be engaged with and detached from the seat support 9. Due to this elastic body 44, the rear part of the seat support 9 has cushioning properties, making the seat 14 more comfortable to sit on. The seat column support column 10 can be removed from the bent portion 2 by removing its upper end from the rear end of the seat column 9 and pushing it from behind.
It can be bent forward about 0, and can be placed horizontally in contact with the lower support 2.

The longitudinal supports 5 on both sides are connected at the lower front by transverse struts 12. The horizontal support 12 is configured to be detachable from the vertical support 2, has a curved middle part, and is made low, and a footrest 41 is attached to this low curved part.

13 is a grip.

In addition to the configuration in which the vertical support 5 is provided with the lifting support 8 as in this embodiment, the vertical support 5 may be separated into an upper part and a lower part, and the support pillars with different thicknesses may be vertically fitted and slid to be raised and lowered. . In this case, if the vertical support 5 is formed of a polygonal tubular body, the horizontal movement of the seat support 9 will be reduced.

14 is a seat, and 15 is a backrest.

The backrest portion 15 is made of a durable cloth-like material and has a bag shape. Tubular bodies are provided on the left and right sides of the bag-shaped interior, and these tubular bodies can be attached to and detached from the backrest support 7 from above.

The seat 14 is removably attached to the seat support 9. The seat 14 has a square dimension of 35 to 45 cm as a whole, and consists of a front seat 16 and a rear seat 17.
Consists of plate-like bodies that can be separated at ~10cm intervals.
The front seat 16 and the rear seat 17 are configured so that when they are attached to the seat support 9, they are not separated back and forth by a stopper 38 on the side.

Both the front seat 16 and the rear seat 17 are provided with a U-shaped groove body 18 that is open downward in the front-rear direction and parallel to the left and right sides of the lower surface of the plate. It is removable. The attachment portion of the seat 14 to the seat support 9 may be configured such that an insertion tube 19, which is a tubular body, is provided at the lower part of the seat 14 instead of the U-shaped groove body 18, and is inserted from the rear.

A seat fixing screw 39 is inserted into a hole in the seat 14 and the seat support 9 from above to prevent the seat 14 from moving back and forth.

The front seat 16 is made of a rectangular plate-shaped body with an elongated plane, and U-shaped grooves 18a are fixed to the left and right sides of the lower surface of the front seat 16 in the front-rear direction with a length approximately equal to the width. The length of this rectangle only needs to cover the width of wheelchair 1.
The width is about 5 to 15 cm.

The rear seat 17 consists of a regular seat plate 17a and a toilet seat plate 17b, which can be attached to the seat support 9 in a mutually interchangeable manner. This allows it to be detachably attached to the seat support 9.

In addition to this, rear seat 17 is for severely disabled people.
Regular seat with back 17c, toilet seat with back 17
It is also possible to have d. These seats 17c and 17d with backs can maintain a sitting posture without requiring assistance from a caregiver.

The normal seat plate 17a is a flat plate, and is inserted into the front seat 16 with its front side in contact with the seat plate 17a to form the seat 14 together with the front seat 16. In this case, a stopper may be provided at the rear end of the seat column 9 to prevent the rear seat 17 from moving.

The normal seat plate 17a places emphasis on comfort and is used when the wheelchair is in normal use, and is replaced with the toilet seat plate 17b when using the toilet.

When the seat 14 is provided with the U-shaped groove body 18,
Since the configuration is such that it is placed over the top, replacement is easy, and in the embodiment in which the insertion tube 19 is provided, when replacing the toilet seat plate 17b and the normal seat plate 17a, it is necessary to replace the toilet seat plate 17b from the rear of the seat support 9. After pulling it out, insert the insertion tube 19 of the rear seat 17 to be replaced. In addition, the front seat 15 has an insertion tube 19, and only the rear seat 16 to be replaced has a U-shaped groove body 18.
It may be configured as follows.

The toilet seat board 17b is a flat board of the same size as the normal seat board 17a, with a wide notch cut out at the front edge.
A toilet hole 21 is formed by removing the central portion continuously from this notch. The size and shape of the toilet hole 21 are formed to suit the body shape of the disabled person.

Since most of the front edge of the toilet seat plate 17b is cut out, when inserting the toilet seat plate 17b, it is possible to insert the toilet seat plate 17b smoothly without pinching the buttocks or clothing hanging down from the rear of the front seat 16. A toilet seat plate 17b can be attached. In addition, it is easy to insert fingers from the front.

By attaching the front coordinate 16 to the seat support 9 at all times, the disabled person can place his/her thighs or buttocks on the front seat 16 to support his or her body, and the seat plate 17a of the rear seat 17 can be easily connected to the front coordinate 16. This facilitates the replacement of the seat plate 17b.

Reference numeral 22 denotes a cleaning liquid pipe, which is provided at the rear end of the toilet seat plate 17b in the approximate center and communicates with the toilet hole 21 from the rear. The cleaning liquid pipe 22 is provided with a connector 23 at its rear protruding portion, and this connector 23 is connected to a water pipe of a toilet facility or the like. Toilet hole 2 of cleaning liquid pipe 22
The opening end on the first side is formed in the shape of a nozzle, and a cleaning liquid such as water, hot water, soap solution, or chemical solution is jetted out under appropriate pressure, and is used for post-cleaning of private parts. Also, cleaning liquid pipe 2
2 is a connecting tool 23 which can be connected to a hot air blower or the like and used for hot air drying.

A rear seat 17 for a severely disabled person who has difficulty maintaining his or her upper body is one in which a normal seat with a back 17c and a toilet seat with a back 17d are interchangeable. The regular seat with a back 17c and the flight seat with a back 17d have a regular seat board 17a and a flight seat board 17b.
It has a back part 24 extending rearward from each rear side, and the back part 24 can be bent at an angle of about 90° from horizontal to almost vertical at the rear side. The backward inclination angle of the back part 24 is controlled by the left and right fixing ropes 25, so that the disabled person can maintain his or her upper body while leaning on the back part 24. Fixing rope 25
The angle of the back 24 can be changed by scratching the front part of the rear seat 17 and hooks 26 provided in appropriate numbers above and below on the left and right sides of the back 24. Reference numeral 42 denotes a back-fall prevention plate, which can be pulled out from the back surface of the seat 14. In the case of the regular seat 17c with a back, there is one backturn prevention plate 42 in the center of the seat 14, and one in the center of the seat 17 with a back.
In the case of d, two sheets are provided on the left and right. Backward prevention plate 42
This prevents the seat 14 from falling backwards when it is separated from the wheelchair and placed on a bed or the like.

27 is an upper body fixing band.

According to the configuration of this embodiment, the fixing screw 11 of the lifting column 8 is loosened, and the lifting column 8 is manually raised and lowered, and the seat column 9 integrated therewith is raised and lowered to raise and lower the seat 14. It can be adjusted to the height of the toilet bowl, etc.

Further, according to the configuration of this embodiment, the left and right lower struts 2, vertical struts 5, armrest struts 6, and backrest struts 7 are connected by the backrest portion 15, seat 14, and side struts 12, which are removable, respectively. By removing these, the wheelchair 1a can be easily folded, making it convenient for storage and transportation.
Further, since the transverse support 12 has a lower middle portion, it is easy for the feet of a person with a disability to pass through when transferring from a bed or the like to a wheelchair.

Moreover, since it is composed of the support column and the seat 14, which are mostly tubular bodies, it is possible to reduce the weight.

Next, the wheelchair 1b of the present invention, which is provided with a lifting device 28 for the seat 14, will be explained based on FIG.

In this embodiment, the lifting device 28 is a small pantograph type jack. Other embodiments of the lifting device 28 may include combinations of conventional techniques such as hydraulic jacks, two-stage ratchets, gears, levers, and the like. Further, an elevating device that is moved up and down by an electric device may be attached.

Lifting device 2 which is a small pantograph type jack
8 is mounted on the lower support column 2 on either the left or right side.
The elevating device 28 has a short and long base plate 29 above and below the pantograph 31 and an upper plate 30, and a rotating shaft 32 is provided at the rear of the base plate 29 so as to be rotatable with the lower column 2. Rotation is performed by a rotation shaft 32 at the rear of the base plate 29.
Rotates approximately 90 degrees horizontally toward the interior of the vehicle body. When the lifting device 28 rotates, the base plate 29
The front part of the wheelchair 1b rotates while riding on a vehicle body base plate 33, which is a plate-shaped body installed between the left and right lower supports 2, and the lifting device 28 changes the direction in the left-right direction of the wheelchair 1b. At this time, the upper plate 30 is located at the lower part of the rear end of the left and right seat columns 9, and the left and right seat columns 9 are placed on both ends thereof.

Although not shown in this embodiment drawing, the lifting device 2
It is also possible to cover it with a retractable case for the protection of people with disabilities or the safety of people with disabilities.

The vehicle body base plate 33 has a half-moon-shaped notch at the rear. 34 is a rotating handle for extending and retracting the pantograph.

The pantograph 31 is rotated by this rotating handle 34.
By extending and contracting the seat column 9, the seat 14 is raised and lowered by raising and lowering the seat 14. However, when attempting to raise and lower the seat 14, loosen the fixing screw 11 of the raising and lowering column 8 and move the raising and lowering column 8 up and down with respect to the vertical column 5. Make sure you can do it.

FIG. 6 shows a wheelchair 1c in which wheels 35 with hand rims are provided in place of the front wheels 3 of the aforementioned wheelchairs 1a and 1b. The axle is provided on an axle support 43 that stands up from the lower support 4 apart from the vertical support 5. wheelchair 1
c can also be configured such that the axle 35 with a hand rim can be detached while the front wheel 2 is attached.

The rear wheels 3 are swivel casters.

36 is a handbrake. In this embodiment, for outdoor use, a sheet 37 with fasteners is provided on the side surface, which is the lower part of the armrest support 6, and the rear surface, which is the lower part of the backrest part 15.

Next, FIG. 7 showing an embodiment of the electric wheelchair 1d will be described.

The wheelchair 1d consists of a seat part 45 and an electric traveling part 46, which have a basic structure similar to the above-mentioned wheelchairs 1a and 1b. This seat section 45 is removably placed on the electric traveling section 46.

The sitting portion 38 includes left and right lower supports 4, vertical supports 5,
An armrest support 6 and a backrest support 7 are continuously formed from a tubular body. The backrest support 7 includes a backrest portion 1.
5 is removable from above. The vertical support 5 is provided with an elevating support 8, which protrudes from the rear of the upper part of the elevating support 8 to constitute a seat support 9, and a front seat 16 is attached to this.
A seat 14 consisting of a replaceable rear seat 17 is installed.

The elevating device 47 is composed of a pandagraph type hydraulic jack, and has a base plate 29 and an upper plate 30 above and below it, and is provided on the lower support columns 4 on both left and right sides or on one side. If it is installed only on one side, a rotation shaft 32 is provided in the same way as the wheelchair 1b, and the hydraulic jack can be moved horizontally.
The seat support 9 is raised and lowered by rotating it by 90°.

The lifting device 47 is driven by the electric power source of the electric traveling section 46 .

The electric traveling section 46 includes a driving front wheel 48, a rear wheel 3 which is a swivel caster, a floor plate 49, and an electric section 50.

In this embodiment, the electric part 50 is located in front of the seating part 45 and drives the driving front wheels 48 . Electric part 5
0 is inside the chassis, battery, motor,
Built-in electric transmission device, control equipment, etc. 51 is a control box.

The floor base plate 49 has a cutout portion formed by cutting out the center portion from the rear like the vehicle body base plate 33 in FIG. 5.

The seating portion 45 is placed on the rails on the floor plate 49 of the electric traveling portion 46 when traveling, but when transferring to a bed or the like, only the seating portion 45 is placed on the floor plate 49.
It can be pulled backwards from above, moved and placed on the bed.

In addition, in order to make it easier for people with disabilities to get on and off, the floor base plate 4
0, the seat portion 38 may be rotated left and right.

In this way, the wheelchair 1 has the left and right lower supports 4,
The seat 1 consists of a vertical support 5, an armrest support 6, and a backrest support 7 made of a single tubular body, which can be attached and detached.
4. Since they are connected by the backrest part 15 and the side supports 12, the wheelchair 1 can be easily removed by removing these.

≪Effects of the Invention≫ According to the present invention, the seat can be raised and lowered with a very simple configuration and simple operation, and the backrest and seat are detachable, making it easy to use for wheelchairs and beds for people with disabilities. It is extremely safe and easy to use in daily life, such as transferring to the bathroom shower, other tables, etc., and using the toilet, and has the effect of significantly reducing the labor not only for the person with a disability but also for the caregiver. There is. Especially suitable for use inside Japanese houses.

In particular, by adding an elevating device, the height of the seat can be easily adjusted, so that persons with disabilities can be easily transferred to their respective locations. That is, by turning the wheelchair backwards, placing the seat on the bed, etc., then removing the backrest and pulling the vehicle body forward, the disabled person's body can be transferred to the bed, etc. along with the seat.

In addition, the wheelchair has a simple structure, can be easily folded, and is light in weight, which is advantageous for transporting the wheelchair, and for transporting and storing the wheelchair when selling it.

Additionally, the seat is removable and can be separated into the front and rear. Furthermore, since the rear seat consists of a regular seat plate and a toilet seat plate, which are interchangeable, the rear seat can be changed to a toilet seat plate when using the toilet. In this way, the comfortable regular seat and the passenger seat can be easily exchanged, and the seat can be shared in daily life, making it convenient to use in daily life. At this time, the thighs of the person with a disability remain on the front seat, which stabilizes the person's posture and makes it easier to replace the rear seat. This has the effect that there is no risk of being pinched or pinched.

Furthermore, by attaching a cleaning liquid pipe to the toilet seat board, it is possible for persons with disabilities to perform post-treatment procedures themselves.
Moreover, it has the effect of being able to do this hygienically. The provision of this cleaning liquid pipe is very effective when using the toilet by disabled persons who are unable to wipe their buttocks due to disabilities in their upper limbs and upper body.

Furthermore, by using a rear seat with a backrest, the upper limbs and upper body can be stabilized, making it easier to transfer to and use a wheelchair.

Furthermore, by providing wheels with hand rims, etc. to a wheelchair with such a basic structure, the wheelchair can be even more useful for the independent living and social activities of disabled people.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a perspective view showing a wheelchair which is an embodiment of the basic structure of the invention, FIGS. 2 to 4 are perspective views of the seat, and FIG. Figures a and 2b are perspective views when the rear seats have regular seat plates, Figures 3a and 3b are perspective views when the rear seats have toilet seat plates, and Figure 4a is the back. 4b is a perspective view of a toilet seat with a back; FIG. 5 is a perspective view of a wheelchair equipped with a pantograph-type hand jack as a lifting device; FIG. 6 is a perspective view of a wheelchair with hand rims; FIG. 7 is a side view of the electric wheelchair. 1a, 1b...Wheelchair, 1c...Wheelchair with hand rim wheel, 1d...Electric wheelchair, 2...Front wheel, 3...Rear wheel, 4...Lower support, 5...Vertical support, 6...Armrest support , 7... backrest support, 8
... Lifting column, 9... Seat column, 10... Seat column support column, 11... Fixing screw (for lifting column),
12...Yokote post, 13...Grip, 14...
Seat, 15...backrest, 16...front seat,
17...Rear seat, 17a...Ordinary seat board, 17
b...Funeral seat board, 17c...Ordinary seat board with back, 17d...Flight seat board with back, 18a, 1
8b... U-shaped groove body, 19... Insertion tube, 20...
Bend part, 21... Toilet hole, 22... Cleaning liquid pipe, 23
... Connection tool, 24 ... Back, 25 ... Fixing rope, 26 ... Hook, 27 ... Upper body fixing band,
28... Lifting device (small pantograph type jack), 29... Base plate, 30... Top plate, 31... Pantograph, 32... Rotating shaft, 33... Body base plate, 34... Rotating handle, 35 ...Wheel with hand rim, 36...Hand brake, 37...Seat with fastener, 38...Stopper, 39...
Seat fixing screw, 40...Fixing screw (for seat support column), 41...Footrest, 42...Backward prevention plate,
43... Axle strut, 44... Elastic body (spring), 45... Seating section, 46... Electric traveling section, 4
7... Lifting device, 48... Front drive wheel, 49... Floor plate, 50... Electric unit, 51... Control box.

Claims (1)

[Scope of Claims] 1. Two vertical columns with a front wheel attached to the lower part and erected so as to be able to rise and fall freely, and a rear end portion extending horizontally and parallel to the rear from the lower part of the vertical column. forms a free end, and the rear end has two lower struts to which the rear wheels are attached, and a rear end that extends horizontally from the vertical strut above the lower strut so that both are parallel to each other. The seat comprises two seat columns forming a free end, and a rear seat and a front seat, each of which is configured such that a regular seat plate and a passenger seat plate attached between the seat columns can be exchanged; The lower end is attached to the vertical support and extends horizontally and parallel to the top of the seat support, and the rear end forms a free end that connects the two armrest supports and the armrest support. A wheelchair for persons with disabilities, comprising a backrest seat that is detachably attached between the upright parts, and a connecting means that connects the lower support and the seat support in a manner that allows the lower support to move up and down at the rear of the vertical support. . 2. Two vertical columns with front wheels attached to the bottom that can be raised and lowered freely, and two vertical columns extending horizontally and parallel to each other from the bottom of the vertical columns, with the rear end forming a free end. The rear end has two lower struts to which the rear wheels can be attached, and the lower strut is above the lower strut and extends horizontally and parallel to the rear from the vertical strut, and the rear end has a free end. A seat consisting of two seat supports, a rear seat and a front seat configured to be able to be replaced with a regular seat plate and a passenger seat plate attached between the seat supports, and a lower end attached to a vertical support. Two armrest supports are attached and extend horizontally and parallel to each other at the top of the seat support, and the rear end forms a free end and is erected. This wheelchair for the disabled is characterized by comprising a backrest seat that can be attached freely, and a connecting means that connects the rear end of the lower column and the rear end of the seat column so as to be able to rise and fall at the rear of the vertical column.