JP2003180754A - Wheelchair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheelchair loaded with a transferring device with a lifting function. <P>SOLUTION: The wheelchair is provided with a base 1 movably supported with casters C1, C2 and a wheel W, a pair of supporting posts 2 vertically provided on the base 1, a seat frame 3 provided perpendicular to the supporting posts and provided in an extended manner to move vertically, a supporting shaft 5 connected to rotate through a pivot 4 at the upper part of the supporting post 2, an armrest 6 provided perpendicular to the supporting shaft 5 and provided in an extended manner, and a body supporter 7 attached to move in the lengthwise direction of the armrest 6, and a seat frame 3 has a seat surface member attached to open and close. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a function of assisting a caregiver when transferring an elderly person or a physically handicapped person with weak leg muscles from a bed to a wheelchair or a toilet seat. Regarding wheelchairs.

[0002]

2. Description of the Related Art Conventionally, as a transfer device of this type, a lifting device composed of a seat that wraps around the hip and the back is locked to a lifter that is tiltably erected, and the lifter is moved up and down electrically. , And by rotating, the old man was transferred from the bed to a wheelchair, a toilet seat, or the like. However,
The sway caused by the sling while moving does not only cause anxiety to the person being assisted, but also puts a seat on the buttocks of an elderly person sitting on a wheelchair or a toilet seat to ensure a good left-right balance and no loose parts. The work of putting on and removing it after use is complicated, and the assisting work of desorption requires physical strength for the helper. In addition, since the transfer device cannot be used to assist in the removal and removal of clothes and underwear, it was forced to be removed before and after the lifting gear was attached in advance, so there are cases in which the self-esteem of the assisted person, such as the elderly, is hurt. Many were latent.

As a means for solving such a problem, there is, for example, one shown in FIGS. This transfer device has a main pillar 51 provided on a pedestal 50 having casters.
And a branch column 52 that is provided so as to be tiltable from a position O corresponding to the knee height of the main column 51, and a joint column 54 that is inserted at the tip of the branch column 52 and integrally supports the upper body holder 53. A pedal 55 provided at an intermediate point P of the main pillar 51, and a link 56 connecting the pedal 55 and the branch pillar 52.

The upper body holding tool 53 has a belly pad 57.
A hinge block 59 rotatably attached to the shaft center of the handle 58, and a pin 6 at the end of the hinge block 59.
A forked arm bar 61 that is connected through 0 and opens in a substantially horizontal eight shape, and is arranged substantially orthogonal to the arm bar 61,
A sliding metal fitting 62 that supports the arm bar 61 from below, and an arm rest 63 that straddles the arm bar 61 and the joint support 54.
And (see JP-A-5-42183).

Using the above-described transfer device, for example, transfer from a bed to a wheelchair or the like is performed in the following procedure (see FIG. 11). This transfer device is brought close to the person being assisted in a sitting posture, and his / her feet are placed on the pedestal 50, and the knee is brought to a position where the knee rests on the knee rest 64. The branch column 52 is tilted, the belly pad 57 is placed, the arm bar 61 that has been opened in advance is placed on the armpit, and the armrest 61 is placed on the sliding fitting 62. Both arms are placed on the armrest 63 in a natural posture, and the joint column 54 is expanded / contracted according to the body as needed. The caregiver pulls the handlebar 58 toward the front while depressing the pedal 55, tilts the body of the person being assisted to stand up,
Move the lock from the bed to the transfer device. Turn the transfer device appropriately and move it to bring it closer to the wheelchair. Then, the lock is released, and the person being assisted is seated on the wheelchair while stepping on the pedal 55.

However, in the above-mentioned transfer device,
Although the complexity of removing and attaching the seats of the lifting equipment has been eliminated, and it has become possible to assist the removal and attachment of clothes and underwear by using the transfer device, but the armpit and abdomen are pressed each time the transfer is performed so that they do not fall downward. Desperately holding on to it is painful for the sick and the like. In addition, there is a risk of interference with a general-purpose wheelchair, and since it is a transfer device with casters that is separate from the wheelchair, there is still a problem for one caregiver to safely and stably transfer assistance. Was there.
Furthermore, when transferring to a toilet seat in a remote toilet outside the patient room, not only the wheelchair on which the person being assisted is transferred, but also this transfer device must be carried to the toilet, which requires a great deal of trouble to the caregiver. become. Therefore, it is necessary to deploy this transfer device in each room, and it can be said that it is unsuitable for transportation to the outside of the room.

[0007] On the other hand, there are wheelchairs which are capable of assisting the attachment and detachment of clothes and underwear by using a transfer device, and having a device capable of temporarily supporting the weight of the person being assisted by the wheelchair and allowing the seat surface to move in and out. As shown in FIGS. 12 and 13, this wheelchair 100 is supported by casters and wheels, and is attached to an outer frame 101 having a footrest portion 103, an armrest portion 104, and a backrest portion 105.
The inner frame 102 having the seat portion 108 and the back portion 109 is rotatably coupled with a horizontal pin 110, and the backrest portion 105 of the outer frame 101 and the back portion 109 of the inner frame 102 are screwed together.
It is connected at 11.

At the time of urination, the person being assisted is seated on the wheelchair 100 and enters the toilet seat backward, and then the screw rod 1
11 is rotated to lift the seat portion 108, and the outer frame 101
The weight support tool 114 provided on the upper connecting rod 112 of the above is put under the armpit of the person being assisted and is hung. Then, by rotating the screw rod 111 and lowering only the seat portion 108, the seat seat 116 can be pulled out backward. afterwards,
By raising the seat portion 108 to remove the weight support tool 114 from the person being assisted to receive the weight of the person being assisted, and further lowering the seat portion 108, the seat 116 can be laid on the toilet seat. In addition, since an elliptical hole is cut out in the front part of the seat seat 116 to the size of the toilet seat, the seat seat 116 is
It is possible to sit on the toilet seat by laying a sheet (Japanese Patent Laid-Open No. 11-24
No. 4337).

[0009]

However, in such a wheelchair, the seat portion 108 of the inner frame 102 has to be frequently moved up and down, and in order to hang up the body by the weight support tool 114, it is necessary to sandwich it between the arms. Since it has to be found, the armpits may be distressed or uncomfortable even temporarily, and the sick person or the like with weak physical strength or physical strength may slip from the weight support unit 114 during clothes removal / attachment assistance and fall off. There is a fear. Further, since the seat seat 116 built in the wheelchair is laid and the user sits on the toilet seat, the seat seat 116 is contaminated, which is not preferable for hygiene. In addition, the seat 1
According to the method of sitting on 16, even if the person being assisted is lifted by the weight supporting portion 114 and the hip portion is floated by the seat portion 108, it is not possible to directly transfer the person to the bed, shower chair or the like. It will be necessary to lift the caregiver and transfer it. Therefore, in the entire process from bed to bed return, the effort on the caregiver has not been completely eliminated.

Therefore, the above-mentioned conventional transfer device and wheelchair cannot be said to be sufficient, which hinders their practical use at the care site and is an obstacle to their widespread use. As the number of people with standing walking disabilities is expected to increase in recent years due to the aging of the population, it enhances the physical strength of the person being assisted and enhances the stimulating effect of mental function, contributing to the improvement of independence and the establishment of a human-like qualitative living environment. It is desired to develop a transfer device that is physically and psychologically less burdensome for both the helper and the person being assisted, is hygienic, and is capable of safe and stable transfer operation with simple operation by the helper. It was

The present invention has been made in view of the above circumstances, and an object thereof is to provide a wheelchair equipped with a transfer device having a lifter function in response to the needs of a nursing care site.

[0012]

In order to achieve such an object, the invention according to claim 1 of the present invention is a pedestal movably supported by casters and wheels, and a pair of columns standing upright on the pedestal. And a pair of seat frames that are orthogonal to this column and project vertically so as to be movable, a support shaft that is rotatably connected to the upper portion of the column via a pivot, and a projecting configuration that is orthogonal to this support shaft. A structure in which a pair of armrests and a body supporter mounted so as to be movable in the longitudinal direction of the armrests are provided, and a seat surface member is mounted on the seat frame so as to be openable and closable is adopted.

As described above, since the transfer device having the lifter function and the function of opening and closing the seat surface member on the vertically movable seat frame is mounted on the wheelchair, the safe and stable transfer operation can be performed by the helper's simple operation. It is possible to move, and without any discomfort or anxiety to the person being assisted, you can leave the body in the body supporter, but you can transfer easily by just leaning on it and urging the temporary bedridden elderly to leave the floor early, and physical strength. It can contribute to the establishment of independence and human-like qualitative living environment while enhancing the promotion and stimulating effect of mental function.

Further, as in the invention described in claim 2,
Since the body supporter can be attached to and detached from the armrest, for example, when the person being assisted transfers from the bed to the wheelchair, the body supporter can be removed in advance to secure an open space, and the transfer can be performed without difficulty. Can be used as a backrest.

According to the third aspect of the present invention, if the seat member includes a roll rotatably mounted on at least one of the pair of seat frames and a sheet wound around the roll. It is hygienic because the person being assisted can take it in and out by slightly floating the hip portion, and does not directly contact the seat with the toilet seat.

If the seat member is provided with a pair of separate seats rotatably mounted on the pair of seat frames as in the invention described in claim 4, it has a simple structure and is electrically driven. Easy to automate.

Further, when the seat member is provided with a bellows-like seat mounted so as to be able to move forward and backward in the front-rear direction of the pair of seat frames, the rigidity of the seat seat is enhanced. The seating surface can be appropriately set according to the body shape of the person being assisted, and automation by electric power is easy.

Further, preferably, by mounting a pair of casters on the front and rear of the wheelchair as in the invention described in claim 6, the wheelchair can be easily turned back and forth and left and right with a small force.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a side view showing an embodiment of a wheel bearing device according to the present invention, and FIG. 2 is a view taken in the direction of arrow A in FIG.

FIG. 1 shows a state in which the wheelchair according to the present invention is used for normal movement. This wheelchair includes a pedestal 1 movably supported by casters C1 and C2 and wheels W, and a pair of columns 2 standing on the pedestal 1.
A pair of seat frames 3 which are orthogonal to the support pillar 2 and are provided to be vertically movable, a support shaft 5 which is rotatably connected to an upper portion of the support pillar 2 via a pivot 4, and a support shaft 5 which is orthogonal to the support shaft 5. The armrest 6 is provided with a pair of protrusions, a body supporter 7 movably mounted in the longitudinal direction of the armrest 6, a detachable handle 9, and a back belt 12.

The front wheels are casters C1 having left and right independent stoppers (not shown), and the rear wheels are also casters C2 which can be swung back and forth and left and right. Pedestal 1
The wheel W located approximately in the middle of is made up of pneumatic tires to stabilize the running and to allow the pedestal 1 to be placed in the space under the bed.
It is set to a small diameter so that This wheel W
Is a swing plate W so that the support shaft W1 can respond to the unevenness of the floor surface.
It is attached to the pedestal 1 via 2 so as to be vertically swingable. A spring (not shown) is interposed between the oscillating plate W2 and the pedestal 1 in order to reduce the impact during traveling. Further, a left-right interlocking type foot brake (not shown) or a lever type hand brake (not shown) is attached to the wheels W.

The pedestal 1 is substantially H-shaped and has a space in the center for mounting a battery (not shown) or the like. A foldable footrest 8 is attached to the front part of the pedestal 1. This footrest 8 is a caster C1
Side wall 8 for protecting the care recipient's foot from the pedestal 1 and the pedestal 1.
a is set high.

A pair of columns 2 standing on the pedestal 1 is an outer cylinder 2.
a and an elevating shaft 2b, and the elevating shaft 2b is attached to the outer cylinder 2a.
The height can be adjusted by inserting it so that it can move up and down. The positioning and fixing of the lifting shaft 2b is a simple set pin (not shown), but it can be automated by an electric cylinder or the like. In addition, the leg rest 13 can be adjusted in angle and front and back so as not to interfere with the transfer of the person being assisted to the inner position of the outer tube 2a, and can be moved up and down in conjunction with a seat frame 3 described later (Fig. 3)).

The pair of seat frames 3 are provided so as to be orthogonal to the elevating shaft 2b of the column 2. Therefore, the seat frame 3 can be moved up and down with respect to the pedestal 1, and the height can be adjusted in conformity with the space of equipment such as a bed and a toilet seat. The seat frame 3 incorporates a seat 14 to be described later, and can be taken in and out depending on the situation.

The support shaft 5 is a pivot shaft 4 provided on the upper portion of the column 2.
It is rotatably connected to the support column 2 via. The rotation range depends on the type of seating sheet that supports the weight of the person being assisted, which will be described later, but it is set so that it can rotate up to 60 ° forward and up to 5 ° backward from the vertical position as a reference point. There is.

A pair of armrests 6 are provided so as to be orthogonal to the support shaft 5, and a handle 9 and a body supporter (hereinafter referred to as BS) 7 described later are detachably attached to the tip end portion. The handle 9 is integrally formed with a convex locking portion (not shown), which is locked in a concave portion (not shown) formed in the tip end surface of the armrest 6 and fixed by an appropriate locking mechanism. ing. Further, the handle 9 has an elliptical or eyebrows-shaped hole so that the caregiver can easily grasp it and prevent injury, and the handle 9 on the front side, which was removed during the care, is hung on the handle 9 on the opposite side. It is convenient for

A long hole 6a is formed in the longitudinal direction of the armrest 6 and a connecting block 10 is attached. The connecting block 10 has a square cross-section and one side 10a thereof.
Engage with the long hole 6a, and allow the connecting block 10 to move in the longitudinal direction of the armrest 6. Further, the connecting block 10 integrally has a connecting portion 10b with which the BS 7 engages, and the BS 7 is detachably fixed. A suitable lock mechanism (not shown), for example, the upper portion 7a, is used for attaching and detaching the BS 7.
The engaging portion can be advanced and retracted and the lock can be released by a simple operation such as grasping the center portion of the person.

When the wheelchair is used for normal movement, the BS7 is mounted on the rear part of the wheelchair and used as a backrest, and when transferring from a bed to the wheelchair, the BS7 is mounted on the front part of the wheelchair to be assisted. Used as a member to support the upper body of the person. The BS 7 includes an upper portion 7a that supports the back and chest of the person being assisted, and a lower portion 7b that supports the abdomen and waist of the person being assisted.
The upper portion 7a and the lower portion 7b are composed of a joint portion 7c that flexibly connects the upper portion 7a and the lower portion 7b. The upper portion 7a is formed with a curved concave portion according to the body shape of the person being assisted so that the person being assisted does not feel uncomfortable. On the other hand, the lower portion 7b has a substantially U shape with an open tip. In addition, the lower portion 7b integrally has a side wall 7d for stably holding the hip of the person being assisted. Furthermore, a cloth waist support band 11 made of cloth can be attached to the opening of the lower portion 7b so as not to give the person being assisted a feeling of foreign matter.

The joint 7c allows the angle between the upper portion 7a and the lower portion 7b to be adjusted steplessly. For example, extension 0
It is also possible to adjust the angle in a range of up to 15 ° of flexion and a range of overextension of 10 ° with a width of 5 ° in stages with an appropriate locking mechanism, with an angle of 0 ° as a base point. When the person being assisted is transferred, the lower portion 7b is bent in the direction of the upper portion 7a and is folded in half to be compact, so that it is easy to assist the transfer. Also, the angle of the lower portion 7b is adjusted so as to fit the body shape of the care recipient's chest and lower abdomen (front part of the pelvis), and even when the BS7 is used as a backrest, the curve of the back waist of the care recipient is obtained. The angle is set so that it fits comfortably and you can leave your body comfortably.

FIG. 3 is a plan view showing a state in which the wheelchair according to the present invention is used as a transfer device, for example, when a person being assisted transfers from the wheelchair to the toilet seat when using the toilet. The connecting block 10 is previously moved along the armrest 6 from the rear part to the front part, and is used as a support member for supporting the BS 7 as the backrest of the person being assisted. At this time, it is preferable to remove the BS7 and turn the front side and the back side of the person being assisted so that the BS7 fits into the body of the person being assisted. Further, the handle 9 and the back belt 12 are detached from the caregiver side and hung on the opposite sides to open the back belt 12. When transferring from a bed or the like to a wheelchair, if the BS 7 is temporarily removed or the lower portion 7b of the BS 7 is folded while it is worn, the open space becomes wider, so that the assisted person's inconvenience Convenient for assisting and preparing for undressing, or assisting in dressing. BS removed
7 may be attached to the connecting block 10 moved to the front of the armrest 6 after necessary assistance such as holding the legs of the person being assisted at a predetermined position.

When moving from a bed or the like to a toilet, after transferring to a wheelchair, the back belt 12 and the handle 9 are attached, and the waist support band 11 of the care recipient leaning on the BS 7 is removed and the upper body is lifted. Raise it and proceed to a toilet or the like with a sitting posture leaning on the back belt 12.

Next, with reference to FIG. 4, a description will be given of the movement from the bed or the like to the toilet and the operation and operation at the time of toilet. 1. Before waking up the person being assisted from the bed, prepare the wheelchair in advance by the following procedure. The position of the wheelchair should be able to be changed without braking the wheel W. The seat surface sheet 14 that supports the weight of the person being assisted is the seat frame 3
It is stored inside and the height is adjusted by moving the lifting shaft 2b up and down according to the height of the bed. The armrest 6 is set to a horizontal position of 0 °, and the BS 7 is moved to the foremost part of the armrest 6 and selected and locked within a range of 50 to 60 ° forward tilt. Next, the lower part 7b is folded in the direction of the upper part 7a of BS7. The footrest 8 is pulled out, the waist support band 11 of the BS 7 is widened, and the back belt 12 and the handle 9 are detached from the caregiver side and hung on the handle 9 on the opposite side.
Leave 2 open. Predict the position where the person to be seated will be seated, and place the wheelchair back on the bedside on the side of the person's foot and lay it sideways. 2. When the person being assisted is seated on the bedside, the person being assisted should support the body with the hand of the person being assisted, be careful not to feel anxiety such as falling, and keep it in a well-balanced manner. 3. Gently pull the wheelchair from the front with the other hand, temporarily place the legs of the person being assisted on the footrest 8 one by one, then push the wheelchair deep into the bed and apply the left and right interlocking foot brakes. 4. While supporting the body of the person being assisted, the back belt 12 and the handle 9 which have been removed in advance are attached, and the person being assisted is leaned against it. Here, since the hands supporting the person being assisted can be completely released, shoes are put on and the legs are put down on the floor. Next, the lower portion 7b of the BS 7 which has been previously folded upward is expanded and locked. 5. The BS 7 is brought close to a position where the lower end of the lower portion 7b fits the lower abdomen (front part of the pelvis) of the person being assisted by manual or electric operation. Then, both arms of the person being assisted are temporarily placed on the BS 7 or the armrest 6. 6. Make sure that the lower part 7b of the BS 7 is properly set on the lower abdomen of the person being assisted, and lean the person to be assisted so as to leave his / her upper body at the BS 7. In order to move the center of gravity of the upper body sufficiently to the front, rotate both arms from both sides of the BS7 and lower them so that the arms are crossed and the body holds its own knees. Then, the waist support band 11 is attached to the waist. Even if the person being assisted is paralyzed, it is possible to hold the paralyzed arm with a healthy hand. This posture is such that as the armrest 6 tilts, the BS 7 and the upper body of the person being assisted approach the horizontal position, and the pressure applied to the lower abdomen and chest received by the BS 7 is dispersed, so that the armpit and abdomen do not suffer or feel pain. You can comfortably leave yourself without giving a pleasant feeling. 7. The support shaft 5 and the armrest 6 are tilted manually or electrically to raise the hips of the person being assisted who is entrusted to the BS 7. 8. While the hip portion is slightly floating, a seat surface sheet 14 to be described later, which is mounted on the opposite side of the helper, is pulled out from the seat frame 3, and a lock device (not shown) on the helper side is locked. 9. By reverse operation of the above item 7, gently seat the seat seat 1
4. After lowering the person to be seated and seating the person being assisted, release the brake of the wheel W and head to the toilet. 10. Back up and enter the toilet, seat sheet 1 on the toilet seat
Brake wheel W at a position where 4 fits. Next, the elevating shaft 2b is lowered to stop the seat surface sheet 14 at the height of the toilet seat. 11. The legs are lowered from the footrest 8 to the floor, and the front faces of both legs are set on the leg rest 13 which is set in a slightly forward tilted position to prepare for undressing in advance. 12. By repeating the operations of the above 6 and 7, the seat surface sheet 14 is stored in the seat frame 3 when the hip portion of the person being assisted floats, and the undressing assistance is provided. 13. After that, gently lower the buttocks of the person being assisted, and seat them directly on the toilet seat. After the urination, the above-mentioned reverse operation is performed.

By providing the pivot axis 4 which is the rotation axis of the armrest 6 at a position substantially coincident with the knee joint movement axis of the person being assisted, the thigh of the person being assisted is tilted substantially parallel to the armrest 6. At that time, the upper body of the person being assisted moves to the head side together with BS7. As the caregiver's upper body approaches a substantially horizontal position, the gravity applied to the pelvic front (lower abdomen) and the precordial chest becomes equal, so the caregiver can easily lift the bulge by depositing himself in the BS7. .

Since the center of gravity of the human body is located in the anterior part of the sacral promontory angle located approximately in the center of the pelvis, the part of the lower abdomen closest to the anterior part of the sacral prong angle is near the iliac spines on both sides of the anterior pelvis (left and right lumbar bones). (It almost coincides with the intersection of the line connecting the lines and the line connecting the pubis and the navel)
Hits. Therefore, in order to fit the tip of the lower part 7b of the BS7 to the front part of the pelvis, the central part is made to be concave, the compression of the lower abdomen is avoided, and both sides are made to be convex so that both sides of the front part of the pelvis fit. ing. As described above, since the upper body support mechanism by the BS7 is configured to support the front part of the pelvis closest to the center of gravity of the human body, it is not necessary to cling to the armrest 6 under the armpit, and the thorax (the cage portion surrounded by the ribs is not necessary. ,
Bands for tightening around the chest and back) are not required. Therefore, the present invention can be applied to a person being assisted who has a weakened arm strength and has difficulty walking in a standing position. Also, the lumbar support band 11 need only be used to the extent that it stably holds the pelvis and hips, and is rather worn for safety so that the person being assisted does not change posture during activation. is there.

The following is a description of the case where the purpose of transfer is to accommodate a shower room, a cafeteria, or a table manually.
For example, when the user wants to sit on the wheelchair exclusively for the shower, he or she should be seated directly on the toilet seat, and while the seat surface seat 14 is stored in the seat frame 3, the handlebar 9 and the back belt 12 are removed to bring the wheelchair out of the room. Keep it out of the way and out of the way of shower assistance. Further, when it is desired to attach to the table for meals, manual work, etc., the armrest 6 can be lowered by the elevating shaft 2B to a position where the armrest 6 can be inserted under the table to use as a desk type wheelchair. In this way, when the person being assisted is seated in the transfer device for a certain period of time, the removable BS 7 is moved to the rearmost part of the armrest 6 so that it can be used as a backrest. The ventral side is open and BS7 does not interfere with meals or manual work.

Next, an embodiment of a seat seat equipped on a wheelchair according to the present invention will be described in detail with reference to FIGS.
FIG. 5 shows a roll-type seating sheet 14, which is wound around a roll 15 and accommodated in one of the pair of seat frames 3. The roll 15 is rotatably supported via a bearing, and an end portion is projected from the seat frame 3 so as to be manually rotatable and used as a knob. In the case of electrically driven rotation, a motor (not shown) may be connected to the other end of the roll 15. The rolls 15 may be housed in both the pair of seat frames 3 and one of them may be driven for winding.

The seat sheet 14 is made of a flexible and high-strength material such as cloth or leather, and has one end fixed to the roll 15 and the other end fixed to the lock rod 16. When the person being assisted is seated on the seat sheet 14, the roll 15 is rotated in the reverse direction to pull out the seat sheet 14, or the seat sheet 1 is used.
4 or pull it out directly and hang it over the opposite seat frame 3,
The lock bar 16 is attached to a locking groove (not shown) provided on the other side of the seat frame 3. If the seat 15 can be locked at an appropriate position by providing the roll 15 with a one-way clutch mechanism (not shown) such as a ratchet, the tension can be adjusted.
Regardless of manual operation, it is possible to attach a take-up speed reducer or the like and set the speed appropriately.

For safety, when the lock bar 16 is mounted in the locking groove, the locking sound can be attracted by the magnet provided in the locking groove to securely lock. Further, a double lock structure is provided by locking a hook (not shown) extending from the seat frame 3 to the center of the lock bar 16. Here, from the time when the seating seat 14 is pulled out until the lock is completed, a device in which a warning lamp (not shown) blinks is attached to take safety measures by audiovisual sense.

FIG. 6 shows another embodiment of the seat sheet.
The seat surface sheet 17 is a separate type and is composed of a pair of sheet members 17a and 17a. The seat member 17a is integrally provided with a rotating shaft 17b and is rotatably mounted on a seat frame (not shown) via a bearing (not shown). Further, the rotating shaft 17b is adapted to be automatically opened or closed from a horizontal position of 0 ° to about 100 °, or in the case of automatic operation, the rotating shaft 17b is connected to an electric motor (not shown). . It should be noted that when the seat member 17a becomes horizontal, a locking sound is emitted to lock the rotating shaft 17b. Further, the seat member 17a does not move downward from the horizontal position, and safety measures of a double lock structure are taken.

FIG. 7 shows another embodiment of the seat sheet.
The seat surface sheet 18 is a shutter type, and the bellows-shaped seat surface sheet 18 is stored in the storage box 18 a of the pedestal 1. To open the seat surface sheet 18, a winding shaft (not shown) built in the storage box 18a is rotated by a motor 18b with a speed reducer, and to close the seat surface sheet 18, the seat sheet 18 is locked at the tip thereof. The wire (not shown) can be wound by a winding device (not shown).

A guide groove 3a extending in the longitudinal direction is formed on the inner wall of the seat frame 3 '. On the other hand, a bearing (not shown) is arranged on the side surface of the seat sheet 18 so that the bearing sheet 3 slides smoothly on the guide groove 3a. Also, the seat sheet 1
Forming a curved portion in the center of 8 that fits the hips of the person being assisted is effective in providing comfort, especially when using the wheelchair for a long time. In addition, here, the wire is hung on a pulley (not shown) attached to the tip of the seat frame 3 ',
Although the winding electric type is illustrated, the present invention is not limited to this, and the seat surface sheet 18 may be opened and closed manually.

When the person being assisted is sitting on the seat sheet 18, a part of the body of the person being assisted is in contact with the seat sheet 18, or when the seat sheet 18 is opened, A lock device (not shown) is provided to prevent the motor from operating so that the shutter-type seat sheet 18 does not malfunction.

As the lock device, it is preferable to provide a pressure sensor on the seat sheet 18 and a limit switch on the seat sheet 18. Further, a gap sensor or the like may be provided to stop the lowering of the support column 2 so that the seat surface sheet 18 does not contact the bed or the toilet seat surface. Also here, it is preferable from the viewpoint of safety that a warning lamp or the like for notifying the lock failure or the operation is additionally provided.

The above-mentioned wheelchair has seat sheets 14 and 1
Since 7 and 18 can be opened to provide an open space in the seat frame 3, in addition to being used as a wheelchair-integrated transfer device,
The armrest 6 is adjusted to a height according to the height of the person being assisted by the raising and lowering shaft 2b to be grasped, and the BS7 is placed in a standing posture with a slight forward inclination.
If the upper body is entrusted to the person, it can be applied as a walking training machine for people at the level of need for nursing care. In addition, it can be fully utilized as a simple bedside training machine and has various functions.

Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment and is merely an example, and does not depart from the scope of the present invention. Of course, the present invention can be implemented in various forms, and the scope of the present invention is shown by the description of the scope of claims, and the equivalent meanings described in the scope of claims and all within the scope Including changes.

[0046]

As described in detail above, since the wheelchair according to the present invention is equipped with a transfer device having a lifter function in the wheelchair, a safe and stable transfer operation can be performed with a simple operation of an assistant. It is possible to establish a human-like qualitative living environment by enhancing the physical strength and stimulating the mental function without giving a discomfort or anxiety to the person being assisted. In addition, it is possible to remove the body supporter to secure an open space and transfer without difficulty, and because it is a pedestal and a pillar structure that can create an open space in the seat frame by simply opening the seat sheet, it is versatile. A wheelchair having functionality can be provided.

[Brief description of drawings]

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

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a plan view showing a state in which the wheelchair according to the present invention is used as a transfer device.

FIG. 4 is an explanatory diagram for explaining a transfer operation.

FIG. 5 is a perspective view showing an embodiment of a seat sheet in a wheelchair according to the present invention.

FIG. 6 is a perspective view showing another embodiment of the upper seat sheet.

[FIG. 7] Same as above

FIG. 8 is a side view showing a conventional transfer device.

FIG. 9 Same as above

FIG. 10 is a view taken along the line BB in FIG.

FIG. 11 is an operation explanatory diagram of a conventional transfer device.

FIG. 12 is a side view of a conventional wheelchair.

[FIG. 13] Same as the rear view

[Explanation of symbols]

1 ... Pedestal 2 ... Prop 2a ... 2b ... 3, 3 '... Seat frame 3a ... Guide groove 4 ... Axis 5 ... Support shaft 6 ... Armrest 6a ... ・ Long hole 7: Body supporter 7a ... upper part 7b ... Lower part 7c ... ・ Joint part 7d .... Side support 8 ... Footrest 8a .... Side wall 9 ... Handle 10 .... Connection block 10a ... One side 10b ... ・ Connecting part 11 .... Waist support band 12 ... Back belt 13 ... Leg rest Seats 14, 17, 18 and seats 17a ... Seat member 17b ... ・ Rotating shaft 18a ... ・ Storage box 18b ・ ・ Motor with reduction gear C1, C2 ... Caster W ・ ・ ・ ・ ・ ・ Wheels W1 ... W2 .... Swing plate 50 ... Pedestal 51 ... Main pillar 52 ... 53 ........ Holding tool 54 ・ ・ ・ ・ ・ ・ Joining columns 55 ... Pedals 56 ... Link 57 ... 58 .... Handle 59 ........ Hinge block 60 ... Pin 61 .... Arm bar 62 ... Slip fittings 63 ... Armrest 64 ... Knee rest 100 ・ ・ ・ ・ ・ ・ Wheelchair 101 ... Outer frame 102 ・ ・ ・ ・ ・ ・ Inner frame 103 ..... foot rest part 104 ... ・ Armoring part 105 ・ ・ ・ ・ ・ ・ Backrest 108 ・ ・ ・ ・ ・ ・ Seat section 109 ... ・ Back 110 ・ ・ ・ ・ ・ ・ Horizontal pin 111 ・ ・ ・ ・ ・ ・ Screw rod 112 ・ ・ ・ ・ ・ ・ Upper connecting part 114 ・ ・ ・ ・ ・ ・ Weight support 116 ... Seat seats O ・ ・ ・ ・ ・ ・ ・ ・ Knee height position P ・ ・ ・ ・ ・ ・ Midpoint

Claims (6)

[Claims] 1. A pedestal movably supported by casters and wheels, a pair of stanchions erected on the pedestal, a pair of seat frames orthogonal to the stanchions and projecting vertically movable, and the stanchions. A support shaft rotatably connected to the upper part of the
A pair of armrests that are projecting orthogonally to this support axis,
A wheelchair comprising: a body supporter mounted so as to be movable in the longitudinal direction of the armrest, and a seating surface member mounted on the seat frame so as to be openable and closable. 2. The wheelchair according to claim 1, wherein the body supporter is attachable to and detachable from the armrest. 3. The wheelchair according to claim 1, wherein the seat member includes a roll rotatably mounted on at least one of the pair of seat frames and a seat wound around the roll. 4. The wheelchair according to claim 1, wherein the seat member includes a pair of separate seats rotatably mounted on the pair of seat frames. 5. The seat member comprises a bellows-like seat mounted so as to be movable back and forth in the longitudinal direction of the seat frame.
Or the wheelchair described in 2. 6. The wheelchair according to claim 1, wherein a pair of the casters is attached to the front and rear of the wheelchair.