JP2002306542A - Wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive wheelchair, onto which the aged or sick can be easily and surely moved by a few persons without causing paints to them. SOLUTION: A seat part (10) is detachably composed of a sitting support part (20) equipped with left and right armrest parts (23) and a backrest part (25), and a traveling base part (30) is provided with an attaching part (37) for fixing the sitting support part. After the seat part is placed on the side part of a bed and the aged or sick is made sit down thereon in the posture of sitting on the edge, the seat part and the sitting base part are fixed, the rear part of the traveling base part is inserted to the downside of the bed, the sitting support part on the bed is fixed on the attaching part, and the traveling base part is pulled out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair, and more particularly to a bedridden elderly person or a sick person without causing any physical and mental distress to the caregiver. From bed to wheelchair,
The present invention also relates to a wheelchair that can be easily transferred from a wheelchair to a bed.

[0002]

2. Description of the Related Art In recent years, with the dramatic progress of medical technology,
Deaths from sickness and accidents have been greatly reduced, but on the other hand, bedridden elderly and sick people are on the rise, making nursing care for bedridden elderly and sick people a major problem.

In the case of a bedridden elderly or sick person, the caregiver usually transfers the elderly or sick person from a bed to a wheelchair or a stretcher, and moves the person to a target place, for example, a hospital or a bathing facility. Have been done.

[0004] In hospitals and nursing homes, care staff members are available, so that bedridden elderly and sick persons can be relatively easily moved from a bed to a wheelchair and from a wheelchair to a bed. However, there is a limit to the number of people who can provide care at home, so it is very troublesome to move from a bed to a wheelchair or from a wheelchair to a bed. Also suffer physical and mental distress. Further, when the weight of an elderly or sick person is heavy, the person may accidentally fall while transferring, which may result in a very dangerous state not only for the elderly or sick person but also for a caregiver.

Therefore, a bed which can be transformed into a wheelchair (Japanese Patent Laid-Open No. 59-160453, Japanese Patent Laid-Open No.
No. 33654, etc.), the chair portion is divided into a seating support portion and a seat portion, and the seat portion is further divided into right and left, and the seat portion is inserted below the buttocks of an elderly or sick person sitting on a bed. Wheelchair fixed to a seating support portion so that an elderly or sick person can be transferred
No. 0-166974), the backrest is configured to be able to be folded into two in a mountain shape, and the backrest and the seat are unfolded in a straight line so as to be lateral to the wheelchair frame and placed on the side of the bed. There has been proposed a wheelchair (see Japanese Patent Application Laid-Open No. 2000-166977) in which an elderly or sick person can be transferred.

[0006]

However, in the method of transforming a bed into a wheelchair, the structure becomes very complicated, the cost becomes high, and it is difficult to adopt it for home care.

[0007] In the method of inserting the seat portion from the left and right, when the seat portion is inserted into the lower portion of the buttocks, the buttocks may be pinched by the seat portion. To avoid this, the caregiver must remove the body of the elderly or sick person. It is necessary to hold and lift, and not only the elderly and the sick, but also the caregiver is physically and mentally burdened.

Further, in the system in which the backrest portion and the seat portion are straightened, if the position of the waist of the elderly or sick does not exactly coincide with the boundary between the backrest portion and the seat portion, the backrest portion and the seat portion are bent. When setting the wheelchair on a wheelchair frame, a heavy load acts on the spine of an elderly or sick person, which may cause pain.

[0009] From the above points, not only elderly and sick people,
It is a social need to provide an inexpensive wheelchair that enables a bedridden elderly or sick person to be easily transferred from a bed to a wheelchair or from a wheelchair to a bed without placing a physical or mental burden on a caregiver. Is urgent.

[0010] In view of the above problems, the present invention provides a bedridden elderly person or sick person from a bed without incurring high costs and without imposing physical and mental burdens on the elderly person, the sick person and the caregiver. It is another object of the present invention to provide a wheelchair that can be easily and reliably transferred to a bed.

[0011]

SUMMARY OF THE INVENTION Therefore, a wheelchair according to the present invention has a seat portion which can be placed on a bed side and which can be seated in an end-sitting position, left and right armrests, and both armrests. A seat support portion including a backrest portion provided upright at a rear portion of the portion, a seating support portion that is removably fixed to the seat portion by sandwiching a portion excluding the front of the seat portion, and a rotatable wheel, A fixing base for fixing the seating support part, and a traveling base part capable of detachably fixing the seating support part on the bed to the fixing structure by inserting a rear part thereof below the bed; A handle attached to the traveling base portion or the seating support portion for pushing and pulling the traveling base portion.

One of the features of the present invention is that a seat portion is detachably attached to a seating support portion, and a seating support portion is detachably attached to a traveling base portion. Is seated on the seat in an end sitting position, the seat is sandwiched and fixed by a seating support, and the running base is inserted under the bed, and the seating support on the bed is fixed to the running base. The point is to fix it.

[0013] Thus, the caregiver just needs to take the bedridden elderly or sick in the sitting position on the side of the bed, as in ordinary care, and then assemble the wheelchair. Can be used to transfer an elderly or sick person to a wheelchair, so that a bedridden elderly or sick person can be easily and reliably removed from a bed, and if the reverse procedure is followed, it can be easily and reliably returned to the bed. Can be.

In addition, when the elderly or sick is moved between a wheelchair and a bed, the very harsh and dangerous work that the caregiver of a considerable part of the weight of the elderly or sick has to support himself is almost impossible. It is no longer necessary and does not place a physical or psychological burden on the elderly or sick, and furthermore, the caregiver has less physical and mental burden.

Further, since the wheelchair is composed of the traveling base, the seating support, and the seat, there is no need to provide a motor mechanism or the like, the structure is simple, the cost is not increased, and the cost for home use is reduced. It can be easily adopted for nursing care.

The seat portion may be of any shape, structure, or material as long as it can be placed on the bed side and the elderly or sick can be seated in an end sitting position, but it is preferably a thin flat plate.

The shape, structure, and material of the seating support portion are not particularly limited as long as the seating support portion has an armrest portion and a backrest portion. However, the seating support portion needs to have a structure that can fix the seat portion. For example, a method in which a pin hole is formed on the seat side and the seating support portion, and a lock pin is inserted and fixed may be used. Alternatively, the locking projection may be locked to the locking receiving portion. Also, the seating support may be in a fixed form, or may be in a form that can be disassembled or deployed.

After the seat support is fixed to the fixed structure of the traveling base, the wheelchair can be freely moved by pulling out the traveling base, but the bed can be lowered when the traveling base is pulled out. For example, it is preferable to adopt a method having a bed surface elevating function. However, when the lifting function is provided, the space under the bed is reduced. Therefore, it is preferable to provide the traveling base portion with an outer diameter at which the rear wheels can be inserted under the bed.

However, when the diameter of the wheel is reduced, the traveling base portion is caught by the step when the vehicle gets over the step on the floor surface, and there is a possibility that the moving place is limited. Therefore, the traveling base portion is configured to be bent into a mountain shape at substantially the center in the front-rear direction, while a locking mechanism for locking the traveling base portion in a state bent into the mountain shape is further provided. It is better to be able to get over the department.

The locking mechanism may be of any type as long as the traveling base can be locked in a state of being bent into a mountain shape. For example, a lock bar slidably supported by the traveling base in the front-rear direction and a traveling base together with the lock bar are provided. And a lock bar receiver for holding the portion in a mountain-shaped bent state. In particular, when the lock bar method is adopted, the rear end of the lock bar is used as a tipping lever when the vehicle crosses a step on the floor surface, and by stepping on the tip, the front side of the traveling base can be lifted to make it easy to cross the step. In addition, a lock hole is formed in a connecting plate connecting the front half and the rear half of the traveling base portion, and a lock pin is inserted into the lock hole in a state where the traveling base portion is bent into a mountain shape so as to lock in that state. You may.

The fixing structure of the traveling base may be any structure as long as the seating support can be fixed, and for example, a column may be employed. However, it is necessary that the seating support portion be fixed to the fixing structure portion. For example,
Locking holes may be provided in the fixed structure portion and the seating support portion at predetermined intervals above and below, and locking may be performed by inserting lock pins into both lock holes, or engaging the locking structure portion with one of the seating support portions. The locking projection may be provided with a locking receiving portion on the other side, and the locking projection may be locked to the locking receiving portion.

Further, if the support structure is provided with the pillar as described above, the seating support portion is cantilevered, and there is a possibility that a sense of stability may be lacked. Therefore, if a damper is provided between the traveling base portion and the seating support portion, a sense of stability of the seating can be obtained, and the swing of the seating support portion can be suppressed when the traveling base portion is bent. Since the seat support portion of this damper is detachable, it is preferable that the damper also be detachable.

Further, if the running base portion is configured to be bent into a mountain shape, the fixing structure portion is inclined and the seating support portion is inclined, which may put a burden on the elderly or the sick. Therefore, the seating support is fixed to the fixed structure of the traveling base so that the traveling base is substantially horizontal with respect to the floor surface when the traveling base is flat and when the traveling base is bent into a mountain shape. Preferably, it is provided as possible. For example, two types of lock holes may be provided on the side of the seating support section to cope therewith.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to specific examples. 1 to 7 show a preferred embodiment of a wheelchair according to the present invention. Basically, the wheelchair of this example is a seat portion 10, a seating support portion 20, and a traveling base portion 3.
0. The sheet portion 10 is formed in a thin rectangular flat plate shape using an appropriate material, and fixing flanges 11 are bent downward at three peripheral edges except for a front edge thereof. Have a plurality of lock holes 213... Formed at appropriate intervals.

The seating support portion 20 has a lower U-shaped lower frame portion 21 and an inverted L-shaped left and right frame portion 22,
22 and an inverted L-shaped frame portion 22, 2
Cushion members 23 are fixed to the horizontal portion 2 to form an armrest. The strength of the seating support portion 20 may be ensured by the frame itself. In this case, however, the frame portions 22 and 23 may become heavy.
Reinforcement panels may be fitted between the upper and lower horizontal sides of 23 to ensure strength, reduce the diameter and weight of frame portions 22 and 23, and reduce the weight of the entire wheelchair.

Also, handles 24, 2 are provided on the vertical sides of the inverted L-shaped frame portions 22, 22 of the seating support portion 20.
4 is attached, and a cloth backrest 25 is attached between the handles 24,24. In addition, the handle parts 24, 24 can be configured to be detachable, and when they are configured to be detachable, they can be fixed to the traveling base 30.

Further, a plurality of lock holes are formed in the lower frame portion 21 of the seat support portion 20 at appropriate intervals, and the lock holes and the fixing flange 1 of the seat portion 10 are formed.
The lock pins 26 and the lock holes 213 of 1.
The seat portion 10 can be sandwiched and fixed between the seating support portions 20 by inserting.

Lock holes 27 and 28 are formed at an end of the lower frame portion 21 of the seating support portion 20 at appropriate intervals, and the inverted L-shaped frame portion 22 is formed.
A lock hole 29 is formed at the distal end side of the horizontal portion 22.

On the other hand, the traveling base portion 30 comprises a frame-shaped front half portion 31 and a rear half portion 32, and the front half portion 31 and the rear half portion 32 are connected to each other by connecting plates 33, 33 so as to be bent into a mountain shape. ing. Caster-type front wheels 34, 34 are rotatably and rotatably supported at the front end of the traveling base portion 30, and rear wheels 35, 35 are rotatably supported at the rear end of the traveling frame 30.

Further, a pipe support (fixed structure portion) is provided at the right and left rear end portions of the front half portion 31 of the traveling base portion 30.
37, 37 are erected. Lock holes 313, 313 are formed in the posts 37, 37 at predetermined intervals vertically, and the lock holes 313, 313 and the seating support portion 2 are formed.
A lock pin 38 is inserted into the lock holes 27, 28, 29 on the 0 side.
The seating support portion 20 can be fixed to the support column 37 of the traveling base portion 30 by inserting.

A lock bar 39 is supported on the rear half portion 32 of the traveling base portion 30 by mounting rings 310 and 311 so as to be slidable back and forth, and a holding bar 36 is hung on the rear end of the front half portion 31 in the width direction. The traveling holding base 36 is provided on the holding bar 36 so that the traveling base 30 can be locked in the bent state by mounting the lock bar 39 in a state where the traveling base 30 is bent into a mountain shape. , The holding bar 36 and the front mounting ring (log bar receiver) 311
A lock mechanism that locks the 0 in a mountain-shaped folded state is configured.

When the front half 31 and the rear half 32 of the traveling base 30 are unlocked, the connecting plate 3 is closed.
3, 33, the bending in the opposite direction beyond the horizontal posture is restricted. In addition, since no load acts on the traveling base 30 when an elderly or sick person is not placed, even if the tipping lever 314 is depressed while the wheelchair of the present example is being moved, the traveling base 30 is bent into a mountain shape and the traveling base 30 is bent. The front end of the part 30 does not lift,
There is a risk of getting caught on the step on the floor. In such a case, it is preferable to provide a mechanism for locking the traveling base 30 in a straight state. For example, a lock hole can be formed in the connection plates 33, 33, and a lock pin can be inserted into the lock hole to lock the traveling base 30 in a straight state.

Further, a base side of a damper 312 is swingably attached to a rear end portion of the front half portion 31 of the traveling base portion 30, and a lower frame portion 21 of the seating support portion 20.
A mounting bracket 210 is fixed to the rear end portion, and the tip side of the damper 312 is detachably mounted to the mounting bracket 210.

For example, when a bedridden old man is moved in the wheelchair of this embodiment, the caregiver raises the old man lying on the bed to a sitting position on the side of the bed in an ordinary sitting position. As shown in FIG. 2, the seat part 10 is placed around the waist of the old man on the side of the bed, and as shown in FIG. 3, the old man is seated on the seat part 10 in the end sitting position.

Next, as shown in FIG. 4, the peripheral edge of the seat portion 10 excluding the front end is sandwiched by the seating support portion 20 so as to surround the elderly from behind with the seating support portion 20, and FIG.
Are inserted into the lock holes of the seat portion 10 and the seating support portion 20, and the seat portion 10 is fixed to the seating support portion 20, as shown in FIG.

Finally, as shown in FIG. 6, when the traveling base 30 is inserted from the rear to the lower side of the bed, the struts 37 of the traveling base 30 come to the front end portion of the seating support 20. Lock holes 28, 29 of part 20
And the lock pin 3 in the lock holes 313 and 313 of the support pillar 37.
8, 38 can be inserted, by which the seat base 20 can be fixed to the columns 37, 37 of the running base 30.

When the bed surface is lowered by using the bed elevating mechanism, the seating support portion 20 floats from the bed surface, so that the traveling base portion 30 is pulled out from the lower side of the bed, and the distal ends of the dampers 312 and 312 are moved. When connected to the mounting bracket 210 of the seating support section 20, the seating support section 20 and the seat section 10 have a stable posture,
When the caregiver pushes and pulls the handle 24, 24,
The wheelchair carrying the old man can be moved to a desired place.

In the wheelchair of this embodiment, since the wheels 34 and 35 are small and the traveling base 30 is low, if there is a step on the floor, the bottom of the traveling base 30 may hit the step and cannot travel.

In such a case, when the traveling base 30 is bent into a mountain shape, the lock bar 39 is slid forward, and the holding bar 36 is passed over and inserted into the lock ring 311. As shown in FIG. Since the 30 can be held in a state of being bent into a mountain shape, the bottom surface of the traveling base portion 30 does not catch on the floor surface at a step.

At this time, since the columns 37, 37 are inclined as shown in FIG. 7B and the seat 10 is inclined, the lower lock pin 38 is pulled out and the lock hole 27 and the lock hole of the column 37 are removed. When the lock pin 38 is inserted into the seat 313, the seat portion 10 can be held horizontally with respect to the floor surface. A damper 31 is provided between the traveling base 30 and the seating support 20.
2, the posture of an elderly or sick person sitting on the seat portion 10 does not suddenly change even if the lower lock pin 38 is pulled out.

When the running base 30 is bent into a mountain shape, the positions of the front end and the rear end of the running base 30 are lowered. The traveling base 30
Can be lifted, and the rear end of the traveling base 30 can be lifted by the handles 24, 24, so that there is no obstacle to the movement of the wheelchair.

When the elderly or sick person is returned from the wheelchair to the bed, the reverse procedure may be performed, and the elderly or sick person can be easily and surely provided to the elderly or sick person, and also to the caregiver. It can be returned to the bed without losing the burden.

In the wheelchair of this embodiment, a footrest may be received according to the height of the elderly or sick, and a brake mechanism may be provided from the viewpoint of ensuring safety during movement.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an embodiment of a wheelchair according to the present invention.

FIG. 2 is a diagram for explaining a method of using the embodiment, and is a diagram schematically illustrating a state at the start of use.

FIG. 3 is a diagram schematically showing a state following FIG. 2;

FIG. 4 is a diagram schematically showing a state following FIG. 3;

FIG. 5 is a diagram schematically showing a state following FIG. 4;

FIG. 6 is a diagram schematically showing a state following FIG. 5;

FIG. 7 is a diagram schematically illustrating an operation of bending a traveling base portion into a mountain shape.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Seat part 20 Seating support part 23 Elbow rest part 24 Handle 25 Backrest part 30 Running base part 31 Front half part 32 Rear half part 39 Lock bar 311 Lock ring (lock bar receiving)

Claims (6)

[Claims] 1. A seat part which is placed on a bed side part and can be seated in an end sitting position, an elbow rest part on both right and left sides, and a backrest part which is provided upright at a rear part of the both elbow rest parts. A seating support portion that is removably fixed to the seat portion by sandwiching a portion except the front of the seat portion, and a fixing structure portion that has a rotatable wheel and that fixes the seating support portion. A traveling base portion capable of detachably fixing the seating support portion on the bed to the fixed structure portion by inserting a rear portion of the traveling base portion below the bed, and being attached to the traveling base portion or the seating support portion,
A wheelchair comprising: a handle for pushing and pulling the traveling base portion. 2. The running base portion is provided with an outer diameter such that a rear wheel can be inserted under the bed.
Wheelchair as described. 3. The traveling base portion is configured to be bent into a mountain shape substantially at the center in the front-rear direction, and a lock mechanism for locking the traveling base portion in a state bent into the mountain shape is further provided. 3. The wheelchair according to claim 2, wherein the base portion is able to get over a step on the floor. 4. A lock bar, wherein the lock mechanism is supported by the traveling base portion so as to be slidable in the front-rear direction, and a lock bar receiver holding the traveling base portion together with the lock bar in a mountain-shaped bent state. The wheelchair according to claim 3, which is configured. 5. A damper for suppressing a swing of the seat support portion when the travel base portion is bent is detachably provided between the travel base portion and the seat support portion. Wheelchair described in Crab. 6. The traveling base portion such that the seating support portion is substantially horizontal with respect to a floor surface in two states when the traveling base portion is flat and when the traveling base portion is bent into a mountain shape. The wheelchair according to any one of claims 3 to 5, wherein the wheelchair is provided so as to be able to be fixed to the fixing structure portion.