JPH0739562A - Wheelchair for nursing - Google Patents

Abstract

PURPOSE:To offer a wheelchair for nursing equipped with a sliding mechanism in the bed section, which facilitates the moving of a patient from the wheelchair to a bed, etc., or vice versa. This wheelchair is also equipped with an up and down movement mechanism in the area where most of the patient's weight is placed, and the best level of the position can be adjusted smoothly. CONSTITUTION:By placing seat board 1a above a seat frame 1 which forms the main frame of a seat area of the wheelchair for nursing, and installing a mover/stopper 1f consisting of a roller, etc., at one end of the back side of a seat board 1a, a seat body 1d, which freely slides on the seat frame 1 is constituted. Also, a backrest 2d which slides freely and is equipped with a mover/stopper 2f consisting of a roller, etc., at one end of the back side of a bottom board 2a, as well as a legrest 3 which swings along with the movement of a backrest frame 2 when reclining, are installed. Above-mentioned seat body 1d, a backrest 2d, a legrest 3 and a headrest 4 constitute the bed section 5, which freely slides by the sliding mechanism 9 as well as moves vertically by the up and down movement mechanism 10.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention can easily transfer a physically handicapped person, a sick person, a bedridden elderly person to a wheelchair from a bed, a toilet seat, a bathroom stand, a shower stand, etc., or a wheelchair to a bed etc. It concerns a wheelchair for nursing care.

[0002]

2. Description of the Related Art Generally, at home, hospital, nursing home, etc., a physically handicapped person, a sick person, a bedridden elderly person are transferred to a wheelchair from a bed, a bathroom stand, a shower stand, or another stand, or from a wheelchair to a bed. In this case, it is very difficult for a caregiver, especially a weak girl, because a caregiver such as a nurse holds the baby directly, and it requires multiple caregivers and is an unreasonable task. There was a problem that the caregiver caused back pain. In order to reduce or eliminate the difficulty of such transfer work and its use, various devices have been conventionally used and developed. (1) For example, there are floor traveling type and ceiling traveling type lifter devices. The floor-traveling lifter is a device that wraps up the body by a seatbelt-like suspender hanging from an arm of a column with casters and lifts the body to move it to a required place, for example, a wheelchair to a bed. The overhead traveling type lifter is a device that winds and lowers a body by means of a seat belt-shaped body suspender hanging from a rail installed on a ceiling wall. (2) Further, there are known wheelchairs having a wheelchair and wheels with a limited purpose such as indoor toilet or shower bath, and they have a seat with a hole for defecation, This vehicle body is used by mounting it on the toilet bowl from behind. (3) In Japanese Patent Publication No. 4-10819, the seating portion can be moved up and down, the seating portion is flattened if necessary, and the seating portion is directly positioned on the bed for transfer. A wheelchair is disclosed which is adapted to facilitate. (4) In addition, the present inventor can easily transfer a patient with a wheelchair in which the backrest pipe is modified to allow the inverted angle to be adjusted in Japanese Utility Model Laid-Open No. 3-114227 and a slider that moves on the pipe laid on the bed. It proposes a wheelchair and a transfer assist tool for the purpose of providing a transfer assist tool. (5) Further, the present inventor has improved the transfer assisting device of (4) to improve the workability of the transfer work of the patient between the wheelchair and the bed, and can significantly reduce the burden on the caregiver and the patient. We proposed a wheelchair transfer assist tool in Japanese Patent Application No. 3-100537.

[0003]

However, the above various conventional devices have the following problems. (1)
The floor-traveling lifter device requires a relatively large floor space for moving and storing, and has a drawback that it is not suitable for the housing situation in Japan, which is narrow and has many steps. The overhead traveling lifter device also has a number of problems such as the fact that it requires a ceiling rail facility, has many difficulties in a Japanese house structure, and is large in size and expensive. Further, it has been pointed out that the lifter device has a problem of causing psychological fear to the persons with disabilities that are hung up. Furthermore,
The wheelchair according to the purpose as described in (2) is used only for toilets, shower baths, etc., and is not suitable for comfortable use in normal times. Due to the difficulty of transferring, wheelchairs that have been purchased with a lot of use are often less frequently used. Further, in the prior art (3), the seat of the wheelchair is moved up and down so as to reduce the difficulty of the transfer work of the disabled person or the like, but the waist of the disabled person is lifted during transfer. After sitting on the seat, the person with a disability must be seated on the seat to support the posture, the burden on the caregiver is large, and the disability of the person with disability is considerable, and the armrest and backrest are also considerable. There is a problem in that the rest needs to be attached and detached and the workability during handling is lacking. The prior arts (4) and (5) proposed by the present inventors solve these problems, but (5) adopts a seat slide system, but slides the seat to the bed side. In order to prevent the wheelchair from falling when it is taken out, the pedestal part tilts the armrest part and the backrest part tilts the side support part toward the bed side, and it is installed in a bridge shape, and the slide mechanism is mounted on it to slide the seat. Since the lower surface of the seat and the upper surface of the bed are not in direct contact with each other, the step difference between the upper surface of the bed and the upper surface of the seat is large due to the thickness of the armrests or the side contact parts, the thickness of the slide mechanism, and the thickness of the seat, so that the patient cannot place it on and off There was a problem that it was difficult, the workability of the slide part was lacking, and the careability was poor. In addition, the sheet also needs a strong structure and the thickness increases accordingly,
Since the height of the armrest part is limited, the amount of sliding of the seat is naturally limited and the amount of sliding cannot be increased. Further, the side contact portion provided on the backrest portion is unnecessary as a normal wheelchair during traveling, and there is a problem that the weight of the wheelchair is increased. In addition, since the seat is a push-pull type, it directly pushes the patient, which causes a problem that the patient and a caregiver feel unclean. More head,
Since there is no mechanism for transferring the legs, it was found that the caregiver had to hold this part to carry out the transfer, and there were problems such as lack of transferability.

The present invention solves the above-mentioned conventional problems. When transferring a patient to a bed or the like, the seat portion can be freely moved up and down by a simple operation, and the patient can be moved to the bed or the like while sleeping. It can be moved smoothly and safely while sitting without giving pain to the bathroom stand etc., and it has excellent operability,
An object of the present invention is to provide a nursing care wheelchair that is excellent in convenience and safety, has a simple structure with improved workability, is lightweight, is low in cost, and is suitable for mass production.

[0005]

The present invention has the following constitution in order to achieve the above object. The wheelchair for care according to claim 1, wherein a wheel, a caster, a seat frame provided with a guide portion formed orthogonal to the wheel on a frame shaft and the like facing the wheel, and rotating to the rear side of the seat frame. A backrest frame that is freely fixed and has a guide portion similar to the guide portion on the opposing frame shaft, and a leg that is rotatably mounted on the front side of the seat frame or under the armrest shaft. A frame, a seat body having a seat plate having a sliding engagement portion formed of a roller or the like sliding on the guide portion at one end portion of the lower surface, and a cushion material, and the sliding engagement portion having one end portion of the lower surface. A backrest body having a bottom plate and a cushioning material and the like, and the seat body and the backrest body arranged continuously on one side of the seat frame and the backrest frame or on the lower surface thereof. A slide mechanism for sliding the side, has a lower frame, a configuration and a stand that is So設 on the wheel side of the lower frame. The nursing care wheelchair according to claim 2 is the wheelchair for nursing care according to claim 1, wherein a saw-toothed locking member formed between the lower frame and the front or rear side of the back surface of the seat frame, and the backrest. A reclining mechanism having a locking member that is locked to the locking member formed on the back surface of the frame or the leg frame, or a sliding ring holding portion fixed to the back side of the backrest frame and the leg frame. And a sliding shaft that is slidably inserted into the sliding ring of each of the sliding ring holding portions and locked by a locking mechanism such as a mechanical lock mounted on the lower surface of the seat frame, And a reclining mechanism having a lever for locking the locking mechanism. The nursing care wheelchair according to claim 3 is the wheelchair for care according to any one of claims 1 and 2, wherein the legrest is rotatably attached to the leg frame side of the seat plate of the seat body. ing. The nursing wheelchair according to claim 4 is the wheelchair for care according to any one of claims 1 to 3, wherein the slide mechanism has a bearing at a predetermined portion such as a center of one side portion or a back surface portion of the seat frame and the backrest frame. Shaft rotatably fixed in a row and connected in series through a universal shaft joint, a slide drive unit for rotating the slide shaft, and a shaft such as a gear fixed to a predetermined portion of the slide shaft. Side pulley, a pulley disposed on the seat frame and the backrest frame on the side opposite to the sliding shaft side, and a chain-like object or an inner side stretched between the shaft side pulley and the pulley And a drive transmission unit including a toothed belt that meshes with the pulley gears and the like. The care wheelchair according to claim 5 is the wheelchair for care according to claim 4, wherein a shaft portion is installed between a bearing portion that is erected on the seat frame and the backrest frame on the side opposite to the sliding shaft side and the bearing portion. The slide receiving portion having one or a plurality of divided rollers described above is provided. The nursing wheelchair according to claim 6 is the wheelchair for nursing care according to any one of claims 1 to 5, further comprising a vertical movement mechanism that is installed between the lower frame and the seat frame to move the seat frame up and down. Have a configuration. The nursing wheelchair according to claim 7 is the seat frame support according to claim 6, wherein the vertical movement mechanism includes a gas damper or an elastic body arranged / fixed on the wheel side of the seat frame and the lower frame. An up-and-down drive unit including a body and the like, one end is rotatably fixed to each of the horizontal members of the seat frame and the lower frame on the up-and-down drive unit side, and the other ends are the seat frame and the lower frame. Between the end of the crossbar, which is slidably mounted on the crossbar end guide disposed on the other end of the And a shaft which is screwed into a horizontal member provided to expand and narrow both ends of the crossbar. The care wheelchair according to claim 8 is the wheelchair for care according to any one of claims 1 to 7, wherein the stand is rotatably fixed to the wheel side of the lower frame and the wheel is set when the stand is erected. A vertical trunk that floats above the floor surface, a grounding material fixed to an end of the vertical trunk, and an elastic body disposed between the vertical trunk or the grounding material and the lower frame. Have a configuration.

Here, the wheels may be either of a manual type having a hand rim or an electric type having an electric motor.
When a U-shaped metal material is used for the frame material of the guide portion of the seat frame or the backrest frame, the U-shaped opening may be used as the inner side and the opening may be used as the guide portion. The guide rails may be separately arranged on the frame. In the case of a U-shaped metal frame or a guide rail having a U-shaped groove fixed to the frame, the sliding engagement portion is a support member erected on the lower surface of the seat plate of the seat body or the bottom plate of the backrest body. The roller is axially supported and the roller is loosely fitted in the U-shaped groove and slidably fitted therein. In this case, it is preferable to form a stopper at the end of the frame or the guide rail in order to prevent the sliding engagement portion from falling off. Further, when the guide rail is formed of a member having a guide groove having a stopper at the end formed separately from the frame, the sliding engagement portion has a shaft slidably fitted in the guide groove. You may form with a support member. The sliding locking part allows the transfer side consisting of the seat body, backrest body, headrest, leg rest, etc. to be inserted between each part of the patient's body and the upper surface of the bed so that the insertion side can swing vertically. It is desirable that the U-shaped groove of the frame or the guide rail is loosely fitted to have a play. Further, it is desirable that the guide groove is formed so that the stopper side rises. This is for facilitating the insertion of each part of the transfer part including the seat body and the like under the patient's body on the upper surface of the bed sunk by the weight of the patient, and for performing the transfer work easily and quickly without causing pain.
When the frame is pipe-shaped, the slide receiving portion need not be formed differently, but it is preferably formed by a roller in order to facilitate sliding during sliding. Further, if the roller is divided into small parts and is made of synthetic resin, rubber or the like, even a patient having a particularly heavy weight can easily perform the transfer work without the roller being bent and without giving the patient discomfort. The seat plate and bottom plate of the seat body and backrest body are made of synthetic resin or F
It may be formed of a plate-shaped material made of composite resin or rubber such as RP or FRTP, or a metal frame may be fixed to the entire circumference or a part of the circumference of the plate-shaped material. In addition, it is preferable to dispose a metal frame at a portion of the sliding engagement portion to which the support member is fixed. This is because the support member can be firmly fixed. It is preferable that the backrest body and the cushioning material for the seat body be formed so as to be detachable with a fastener or the like, since there is no step when the transfer portion is flush with each other and a comfortable feeling can be given. It is desirable that the thickness of the seat body and the backrest body is 2.5 cm or less, preferably 1.5 cm or less. This is for easy insertion under the patient's body. The reclining mechanism may be of a single type or a synergistic type, and is selectively used depending on the degree of symptoms of a patient or a disabled person. In the case of severe patients and persons with disabilities, the collaborative type is more convenient because it can transfer in one movement. In the case of a stand-alone type, attach a rotatable leg to the backrest or leg rest, and when the backrest frame etc. is tilted, support the backrest frame etc. with the legs so that it is approximately horizontal with the seat frame. This is preferable because the workability of the transfer work can be enhanced and the wheelchair can be prevented from shaking. If the head frame is detachably formed on the backrest frame, the head frame can be used depending on the degree of disability of the patient and can be used as an ordinary wheelchair, so that the usability can be expanded. In addition, it is preferable that the pillow of the headrest can be detachably attached with Velcro or the like because it can be used as a stretcher or the like. It is preferable to attach an electric motor or the like that can rotate in the forward and reverse directions to the shaft of the slide mechanism or the up-and-down movement mechanism to make it an electric type because the burden on the caregiver can be reduced. When the slide shaft of the slide mechanism is fixed to one side portion of the seat frame and the headrest frame by the bearing portion, it is preferable that the wheel on the opposite side is rotatably supported by the sleeve of the frame.
This is because the transfer work can be performed at any height, and the transfer work can be easily performed even in a narrow place. Further, when the slide shaft is disposed on the back surface of the seat frame and the backrest frame via the bearing, it is preferable that both wheels are rotatably supported by the sleeve. This is to enable transfer work in any direction. The seat frame support of the vertical movement mechanism has an elastic body such as a gas tamper and a spring, and also has a rack part so that a pinion or the like that meshes with the rack part can be vertically moved manually or electrically by a handle or an electric motor. It may be formed so as to be able to move up and down electrically by a combination of the gears formed in 1 above and gears. The crossbar end guide is formed by a rail or sleeve having a U-shaped groove. The crossbar end guide is engaged with the crossbar end guide, and the crossbar end is inserted into a pulley or a sleeve fitted to the rail. It is formed of a pipe-like material. Instead of the crossbar type jackie, one or two pantograph type jackies may be arranged between the seat frame and the lower frame. In the case of arranging two groups, if each jackie shaft is made to move in pairs, the vertical movement can be performed without rattling. Furthermore, if two jackies are placed parallel to the wheels, they should be placed closer to the waist side, which is said to take 70% of the weight when sitting. Can move up and down. The grounding material of the stand is composed of a T-shaped frame with respect to the vertical trunk or a frame material connected between the ends of the frame. This is for stably supporting the wheelchair. It is preferable to fix a rubber material or the like to the frame or a predetermined portion of the frame material because the grounding material can prevent slipping on the floor surface. Also,
It is preferable to provide the stand with a stocher for preventing the stand from being inverted, because the stand can be prevented from being inverted during the transfer operation. The Stocher may be anything that can prevent the vertical trunk from rotating.

[0007]

With this structure, the present invention has the following actions. When transferring a patient to the bed, the wheelchair can be lifted and the care wheelchair can be fixed to the floor such as the side of the bed simply by stepping on the stand of the lower frame with the foot and attaching the grounding material to the floor and pulling it toward you. Sometimes the wheelchair does not sway, and the work can be performed safely without making the patient feel uneasy. By rotating the shaft of the vertical movement mechanism, the seat height can be adjusted according to the height of the bed, so it can be used for any type of bed, etc. You can adjust the height and your favorite height. In addition, you can freely change the height during running and the optimal height for sitting and working. Since it has a reclining mechanism, the transfer part consisting of the headrest, backrest, seat, leg rest, etc. can be made flush with each other, without causing an unnatural posture when the disabled person transfers and also for the disabled person. Can be transferred without pain. It has a slide mechanism, and the headrest, backrest body, seat body, legrest, etc. that make up the transfer section are thin, and the backrest body and seat body swing at one end to the drive mechanism of the slide mechanism. Since it is movably locked and the opposite side is supported by a slide receiving part such as a roller, when a patient is placed on the transfer part or when the patient on the transfer part is slid to the bed side, Since the lower part of the transfer part such as the backrest body and the upper surface of the bed are in contact with each other, and the patient's weight is supported by the upper surface of the bed and the wheelchair, the wheelchair is not supported only by the cantilever, preventing the wheelchair from falling to the bed side. can do. Further, since each of the transfer parts can follow each part of the patient which is sunk by the elasticity of the bed, they can be easily inserted between the patient and the upper surface of the bed. After the patient is placed on the headrest, backrest, seat, and legrest, the patient can be transferred to the care wheelchair very easily only by driving the slide mechanism. Further, after the patient is transferred, the seat can be lowered to the optimum height of the patient by the vertical movement mechanism, so that it is possible to prevent the patient from feeling uneasy. The transfer from the care wheelchair to the bed or the like can be easily performed contrary to the above. The vertical movement or slide of the seat or the like can be easily performed by an adult patient with heavy weight or a single caregiver by simply rotating each one shaft, and the workability of the transfer work can be improved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view showing a sliding state of a transfer part of a nursing care wheelchair according to an embodiment of the present invention. 1 is a seat frame forming a framework of a vertically moving seat portion of a nursing care wheelchair, 1a is a seat plate in which a pipe-shaped frame 1c is reinforced around a tray-shaped synthetic resin plate 1b whose back surface is processed to be slippery, and 1d is A cushion mat 1e is fixed on the surface of the seat plate 1a to disperse the seat pressure and improve riding comfort, and a sliding engagement portion 1f including a roller or the like is provided at one end of the lower surface of the seat plate 1a. A seat body slidably mounted on the back, 2 is a backrest frame forming a reclining type backrest framework for holding the body of a patient or the like, and 2a is a tray whose back surface is processed to be slippery like the seat plate 1a. -Shaped synthetic resin plate 2b is reinforced by a pipe-shaped frame 2c around the bottom plate 2d is a bottom plate 2a
A cushionable mat 2e is fixed to the bottom of the bottom plate 2a, and a slidable backrest body 3 is provided at one end of the bottom surface of the bottom plate 2a. Seat body 1
The leg rest 3a is rotatably connected to the seat d and slides in conjunction with the seat body 1d when it slides. The leg rest 3a is rotatably attached to the seat frame and cooperates with the backrest frame 2 to support the leg rest 3 when reclining. The leg frame 4 is detachably attached to the backrest body 2d, holds the head of the patient when using, and slides in conjunction with the backrest body 2d. The headrest 4a is attached to and detached from the headrest 4 with Velcro or the like. Pillows 5 freely attached are parts for carrying a patient or the like, and are a transfer section including a seat body 1d, a backrest body 2d, a legrest 3, a headrest 4, etc., 6 is a removable armrest, and 7 is When performing transfer work, etc., a stand for preventing the care wheelchair from falling over and performing stable transfer, 8 is a reclining mechanism, Is a slide mechanism for safely and smoothly sliding the transfer part on which a patient is transferred to a bed or the like, 10 is a vertical movement mechanism for adjusting the height of the seat frame 1 and transferring the bed to the bed, and 11 is for care A lower frame forming the framework of the lower part of the wheelchair, 12 removable wheels, 13 casters, 13a transfer section 5
A reference numeral 14 designates a grip for preventing the caster 13 from swinging when sliding. With respect to the nursing care wheelchair according to the embodiment of the present invention configured as described above, the operation of the transfer operation to the bed using the same will be described below. First, the operation of adjusting the height of the seat body 1d of the care wheelchair to the height of the upper surface of the bed will be described with reference to FIGS. FIG. 2 (a) is a schematic view of a main part of a method of standing a stand of a nursing care wheelchair according to an embodiment of the present invention, as viewed from the side, and FIG. 2 (b) is for nursing care according to an embodiment of the present invention. FIG. 4 is a perspective view of an essential part of the wheelchair with the stand upright, and FIG. 3 is a perspective view of an essential part of a vertical movement mechanism of a nursing care wheelchair according to an embodiment of the present invention. In FIG. 2, 7a is a vertical trunk that lifts the wheels 12 from the floor when the stand 7 rotatably fixed to the rear end of the lower frame 11 is erected, and 7b is fixed to the end of the vertical trunk 7a. A grounding material that grounds on the floor to prevent the care wheelchair from falling or shaking, 7c is an elastic body made of springs or the like for flipping up and storing so as not to get in the way when the stand 7 is not used, 7d is a stand Vertical trunk when storing 7
A stand stopper that supports a, 7e is a slip stopper made of rubber or the like to prevent slippage with the floor surface when sliding the transfer section, and 7f is fitted into the lock receiving section 7h when the stand 7 is set up and fits on the stand 7. A stand lock portion internally provided with a lock rod 7g for preventing disengagement, 7i is a lock for releasing the lock by pushing the lock rod 7g fitted to the lock receiving portion 7g by stepping on the lock release pedal 7j when the stand 7 is stored. It is a release stick. In addition, in FIG.
a is a vertical movement drive unit including a seat frame support 10c provided with a gas damper 10b fixed to the wheel 12 side of the seat frame 1 and the lower frame 11, 10d is a vertical movement handle, and 10e is a vertical movement of the seat frame 1. In order to make the pantograph mechanism, the crossbars, 10f, are a pair of substantially U-shaped crossbar end guides, which are arranged to face the inner ends of the seat frame 1 and the lower frame 11, respectively, and 10g is the longitudinal direction. A shaft for expanding and narrowing the crossbar 10e by screwing in opposite directions at substantially the center portion and both ends being screwed and held by the horizontal member 10h on the upper side to rotate the crossbar 10e. It is a lower horizontal member having rollers that are movably held and have rollers at both ends that are loosely fitted to the crossbar guide portion 10f. Where the shaft 10
Even if a ball screw is used for g, a mechanism for expanding and narrowing the crossbar 10e can be achieved. First, the caregiver laterally attaches a nursing care wheelchair carrying a patient or the like such that the side on which the transfer part slides contacts the side surface of the bed, and as shown in FIG. While standing down, pull up the nursing care wheelchair so that it stands up and stand the stand 7. The care wheelchair is supported by the grounding material 7b of the stand 7 and the casters 13, and the wheels 12 are in a floating state. The stand 7 is automatically locked. Next, the swing stop 1 of the caster 13 is provided so that the transfer work can be performed stably.
Lock 3a. The bed side armrest 6 is removed in preparation for transfer. The wheels 12 are also removed according to the height of the bed upper surface. Next, the vertical movement handle 10d disposed on the lower rear side of the seat body 1d is rotated to adjust the height of the seat body 1d so that the height of the seat body 1d becomes substantially the same as the height of the bed surface. When the vertical movement handle 10d is turned to the right, the crossbars 10e attract each other by the shaft 10g and the crossbar end guide portions 10f slide toward the wheels as shown in FIG. 3, and the seat frame 1 is pushed up by the pantograph mechanism. . The structure of the crossbar end guide portion 10f may be a guide rail roller system or a system in which a sleeve is directly attached to the lower frame 11. At this time, since the seat frame support 10c provided with the gas damper 10b is disposed at the waist where 70% or more of the body weight is applied, the vertical movement can be performed smoothly. Also, gas damper 1
Since 0b always exerts a force in the upward pushing direction, the vertical movement handle 10d can be operated by an extremely light operation. On the contrary, if you turn it counterclockwise, the crossbar 10
e can spread each other and lower the seat frame 1. Even when the seat frame 1 is lowered, the weight of the patient is applied, so that the seat frame 1 can be lowered very smoothly. As described above, since the seat frame 1 can be moved up and down by turning the vertical movement handle 10d, the height of the seat body 1d placed on the seat frame 1 can be freely adjusted. Next, in Figure 4,
The sliding method of the transfer unit will be described with reference to FIGS. 5 and 6. FIG. 4 is a side view of an essential part showing a reclining mechanism of a care wheelchair in one embodiment of the present invention, and FIG. 5 is a perspective view of an essential part showing a slide mechanism of a transfer part of a care wheelchair in one embodiment of the present invention. FIG. 6 is a schematic view of a main part showing a relationship between a transfer part and a bed upper surface when transferring a nursing care wheelchair in one embodiment of the present invention. In FIG.
A lock 8a is fixed to the lower surface of the seat frame 1 by a lock mechanism holding portion 8a and locks a sliding shaft 8b that slides back and forth according to the inverted angle of the backrest frame 2 to hold the inverted angle. A mechanism, 8d is a slide ring holding part having a slide ring 8c fixed to the back side of the backrest frame 2 and the leg frame 3a and having a slide shaft 8b inserted therein, and 8e is a reclining mechanism for locking the lock mechanism 8a. It is a lever. In addition, in FIG.
d is a slide shaft for driving the drive transmission unit 9b composed of a toothed belt or the like by rotating the slide handle 9a to slide the seat body 1d or the like, and 9g is a slide locking portion of the seat body 1d. A belt stopper arranged near the lower side of 1f, 9e is a pulley on the sliding shaft 9d side for driving a toothed belt, and 9h is a seat body 1d that rolls a roller of a sliding engagement portion 1f. A guide portion including a U-shaped guide rail for sliding, 9f is a seat body 1
A slide receiving portion composed of a plurality of roller portions for sliding d while receiving the weight of a patient or the like, and 9c is a seat body 1.
backrest body 2d having a slide mechanism 9 similar to d
Is a universal shaft joint for connecting a sliding shaft, which is provided to slide together with the seat body 1d. By using the universal shaft coupling 9c, it can be easily operated even during reclining. First, the caregiver pulls the reclining lever 8e, tilts the backrest frame 2 rearward so that the transfer section 5 becomes flat at the height of the seat body 1d, and then releases the reclining lever 8e.
At this time, as shown in FIG. 4, when the backrest frame 2 is tilted backward by the reclining mechanism, the unlocked sliding shaft 8b slides forward, and the leg frame 3a pivots upward accordingly. Push up the leg rest 3. When the reclining lever 8e is released when the transfer unit 5 becomes horizontal, the sliding shaft 8b is fixed in position by the lock mechanism 8a, so that the transfer unit 5 can be maintained in the horizontal state. Even if the center of gravity moves backward due to reclining, the stand 7
Since the entire nursing care wheelchair is safely held, it does not fall. Next, slide handle 9a
When is rotated to the right, the transfer mechanism 5 slides in the bed direction with the patient or the like on it by the slide mechanism 9. At this time, the rotation of the slide handle 9a causes the slide shaft 9d to rotate via a gear or the like. Shaft 9 for slide
Pulleys facing each other are disposed on the d and the slide receiving portion 9f, and a drive transmitting portion 9b made of a toothed belt is stretched. The drive transmission portion 9b is fixed to the seat body 1d via a belt stopper 9g, and the drive transmission portion 9b is driven to slide the seat body 1d toward the bed. Further, the above-mentioned mechanism is similarly applied to the backrest body 2d through the universal shaft coupling 9c. Therefore, the seat body 1d and the backrest body 2d are slid by rotating the sliding handle 9a, and at the same time, the headrest 4 and the legrest 3 connected to these are slid together. Also seat body 1
Since the d and the backrest body 2d are attached by a detachable zipper or the like, clothes of a patient or the like are not caught in the seat frame 1 or the like when sliding. Further, at the time of sliding, as shown in FIG. 6, the roller of the sliding engagement portion 1f of the guide portion 9h initially rolls in contact with the lower side of the guide portion 9h, but the center of gravity of the patient or the like moves as the roller slides. Of the sliding engagement part 1 so that the sliding contact part 1h contacts the upper side of the guide part 9h and rolls.
Predetermined play is provided in relation to f. By providing this play, the weight of the patient or the like can be dispersed, and it is not necessary for the sliding engagement portion 1f to receive the entire weight, so that the sliding mechanism can be simplified and the weight can be reduced. Further, since the moving portion 5 can dig into the upper surface of the bed only in this play portion, the patient or the like can be easily moved from the bed 15. In addition, according to the results of experiments conducted by the inventors, even if the transfer unit 5 such as the seat 1d on which the patient is placed is placed on the bed 15 on which a flexible mat is laid, the ground surface of the transfer unit 5 has a wide weight. Since the weight is received and dispersed as a whole, the transfer unit 5 can be smoothly moved to the upper surface of the bed 15, and it has been found that the force required to rotate the handle of the sliding handle 9a can be extremely small.
It was also found that when the transfer section 5 is inserted between the patient and the bed 15, the seat body 1d, the backrest body 2d, etc. are independently swingable, so that it can be easily performed. As described above, according to this embodiment, the sliding seat body 1
Since the entire surfaces of d, the backrest body 2d, the headrest 4, and the legrest 3 slide together on the bed 15,
It is possible to smoothly transfer a patient or the like onto the bed 15 without the bed surface being dented. Incidentally, in order to transfer the patient or the like from the bed 15 to the care wheelchair, the above-mentioned work may be reversed.

[0009]

As described above, according to the present invention, since the wheelchair has the slide mechanism of the transfer part, the transfer operation from the bed to the wheelchair or from the wheelchair to the bed can be performed smoothly without causing any pain to the patient. It can be performed by a single caregiver, and the workability can be significantly improved and labor saving can be promoted. Further, since it has a reclining mechanism having an extremely simple structure, it is possible to recline in an optimum posture, and since the structure is simple, it is possible to reduce the number of parts and weight, and also improve the durability. Since the vertical movement mechanism is located at the position where the patient's weight is most applied, it can be adjusted to the optimum height smoothly without rattling, and the vertical movement drive unit and crossbar equipped with a biasing force such as a gas damper are organic. Since it is connected to each other, even a woman or the like can easily move the patient up and down without feeling anxious. Also,
At the time of transfer work, since the wheelchair is supported on the floor by the stand, the wheelchair does not tilt and the transfer work can be performed quickly without making the patient feel uneasy.
After finishing the work, the wheelchair can be moved simply by flipping up the stand. It is possible to realize a nursing care wheelchair that has various effects such as the above, and is low in cost and excellent in mass productivity.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a sliding state of a transfer unit of a nursing care wheelchair according to an embodiment of the present invention.

FIG. 2 (a) is a schematic view of a main part showing a method of raising a stand for a nursing care wheelchair according to an embodiment of the present invention. (B) is a schematic diagram showing a state where the stand for a nursing care wheelchair according to an embodiment of the present invention is raised. Partial perspective view

FIG. 3 is a perspective view of an essential part of a vertical movement mechanism of a nursing care wheelchair according to an embodiment of the present invention.

FIG. 4 is a side view of an essential part showing a reclining mechanism of a nursing care wheelchair according to an embodiment of the present invention.

FIG. 5 is a perspective view of a main part showing a slide mechanism of a transfer part of a nursing care wheelchair according to an embodiment of the present invention.

FIG. 6 is a schematic view of a main part showing a relationship between a transfer part and a bed surface during transfer according to an embodiment of the present invention.

[Explanation of symbols]

 1 Seat Frame 1a Seat Plate 1b Synthetic Resin Plate 1c Frame 1d Seat Body 1e Cushion Mat 1f Sliding Lock Part 2 Backrest Frame 2a Bottom Plate 2b Synthetic Resin Plate 2c Frame 2d Back Rest Body 2e Cushion Mat 2f Sliding Lock Part 3 Legrest 3a leg frame 4 headrest 4a pillow 5 transfer section 6 armrest 6a armrest axis 7 stand 7a vertical trunk 7b grounding material 7c elastic body 7d stand stopper 7e anti-slip 7f stand lock section 7g lock bar 7h lock receiving section 7i lock release section Lock release pedal 8 Reclining mechanism 8a Lock mechanism 8a 'Lock mechanism holding part 8b Sliding shaft 8c Sliding ring 8d Sliding ring holding part 8e Reclining lever 9 Sliding mechanism 9a Sliding handle 9b Drive Transmission part 9c Universal shaft joint 9d Sliding shaft 9e Pulley 9f Sliding receiving part 9g Belt stopper 9h Guide part 10 Vertical movement mechanism 10a Vertical movement drive part 10b Gas damper 10c Seat frame support 10d Vertical movement handle 10e Crossbar 10f Cross Bar end guide part 10g Shaft 10h, 10i Horizontal material 11 Lower frame 12 Wheels 13 Casters 13a Swing stop 14 Grip 15 Bed

Claims (8)

[Claims] 1. A seat frame comprising a wheel, a caster, a guide section formed orthogonal to the wheel on a frame shaft facing the wheel frame, and a seat frame rotatably fixed to the rear side of the seat frame. A backrest frame provided with a guide portion similar to the guide portion on the opposing frame shafts, a leg frame rotatably mounted on the front side of the seat frame or under the armrest shaft, and the guide portion. A seat body having a seat plate having a sliding engagement portion made of a roller or the like sliding on the lower surface at one end portion and a cushion material, and a bottom plate having the sliding engagement portion at one end portion of the lower surface and a cushion material And the like, and a slide for sliding the seat body and the backrest body, which are arranged continuously on one side portion of the seat frame and the backrest frame or on the lower surface thereof, to the wheel side. A nursing care wheelchair comprising an id mechanism, a lower frame, and a stand mounted on the wheel side of the lower frame. 2. A sawtooth-shaped locking member formed between the lower frame and the front or rear side of the back surface of the seat frame, and the backrest frame or the back surface of the leg frame. A reclining mechanism having a hook that is locked to the locking member, or a slide ring holding portion fixed to the back side of the backrest frame and the leg frame, and a slide ring holding portion. A sliding shaft, each end of which is slidably inserted into the moving ring and locked by a lock mechanism such as a mechanical lock provided on the lower surface of the seat frame, and a lever for locking the lock mechanism. The care wheelchair according to claim 1, further comprising any one of the reclining mechanisms having the above. 3. The care wheelchair according to claim 1, wherein a leg rest is rotatably attached to a leg frame side of the seat plate of the seat body. 4. The slide mechanism is rotatably fixed to a predetermined portion such as the center of one side portion or the back portion of the seat frame and the backrest frame by a bearing portion and is continuously provided via a universal joint or the like. A slide shaft, a slide drive unit for rotating the slide shaft, a shaft side pulley such as a gear fixed to a predetermined portion of the slide shaft, and a slide shaft side of the seat frame and the backrest frame. A pulley arranged on the opposite side of the frame, and a drive transmission part consisting of the shaft side pulley and a chain-like object stretched between the pulleys or a toothed belt or the like that meshes with a gear of the pulley or the like inside The care wheelchair according to any one of claims 1 to 3, further comprising: 5. A bearing portion erected on the seat frame and the backrest frame on the side opposite to the sliding shaft side, and one or a plurality of divided rollers axially mounted between the bearing portions. The care wheelchair according to claim 4, further comprising a slide receiving portion having a. 6. The vertical movement mechanism, which is installed between the lower frame and the seat frame to move the seat frame up and down, according to any one of claims 1 to 5. Wheelchair for care. 7. A vertical movement drive unit, wherein the vertical movement mechanism includes a gas damper disposed and fixed on the wheel side of the seat frame and the lower frame, a seat frame support having an elastic body, and the like, A cross, one end of which is rotatably fixed to each of the horizontal members of the seat frame and the lower frame on the side of the vertical motion drive unit, and the other end of which is disposed on the other end side of the seat frame and the lower frame. A crossbar that is slidably mounted on the bar end guide part and that is axially supported at the center part and that can be narrowed at both ends, and a horizontal member that is arranged between the ends of the crossbar. 7. A shaft that expands and narrows both ends of the cross bar that has been formed.
Wheelchair for care described in. 8. The vertical trunk, which is rotatably fixed to the wheel side of the lower frame, lifts the wheels from the floor surface when the stand is erected, and is fixed to an end of the vertical trunk. A grounding material, and an elastic body disposed between the vertical trunk or the grounding material and the lower frame,
The care wheelchair according to any one of claims 1 to 7, further comprising: