JPH0767480B2 - Wheelchair for bed mating - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed-fitting wheelchair.

[0002]

2. Description of the Related Art Conventionally, various wheelchairs for sick people have been proposed.

However, although it is a wheelchair for moving the sick person as it is, a wheelchair which becomes a bed on which the sick person can lie by being fitted and connected to the frame has not yet been proposed.

The present invention provides an unprecedented wheelchair for a sick person.

[0005]

The gist of the present invention will be described with reference to the accompanying drawings.

A flat U-shaped cutout window portion 2 is provided, and an upper half body placing portion is provided so as to be capable of undulating and fitted into the cutout window portion 2 of a bed frame body 1 provided so as to be able to move up and down by an appropriate means. A wheelchair is provided with a sick person placing portion 10 in which a backrest portion 7, a seating portion 8 and a foot resting portion 9 are connected to each other in a size that fits exactly into the cutout window portion 2, and A backrest portion 7 and a foot rest portion 9 are slidably provided, and a base frame 31 with a moving means provided detachably to the sick person rest portion 10 is provided below the sick person rest portion 10, The present invention relates to a bed-fitting wheelchair characterized in that a connecting portion for connecting the bed frame 1 and the sick person placing portion 10 fitted in the cutout window portion 2 is provided.

[0007]

The bed is formed by fitting the wheelchair according to the present invention into the cutout window portion 2 of the bed frame 1. The sick person sleeping in this bed is moved onto the sick person placing portion 10 of the wheelchair fitted to the bed, and the upper half body placing portion of the bed frame 1 and the backrest portion 7 of the sick person placing portion 10 are appropriately changed. The foot rest 9 of the sick person placing portion 10 is appropriately moved and the base pedestal frame 31 is positioned below the bed frame 1 so that the base pedestal frame 31 and the sick person placing portion 10 are connected to each other. When the connection between the bed frame 1 and the sick person placing part 10 is released and the sick person placing part 10 is pulled out from the bed frame 1, the wheelchair appears. The sick person is placed in this wheelchair and moved to the desired location.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show one embodiment of the present invention.
This will be described below.

The structure of the bed frame 1 is as follows.

A cross rail 13 is provided between the left and right frames 12 of the bed frame 1.
The support rod 14 is provided in the center of the horizontal rail 13 so as to project toward the foot side of the bed, and the lateral rod 5 of the wheelchair to be described later is fitted to the tip of the support rod 14 in a V shape. A horizontal rod fitting portion 6 having a recess is attached.

A mounting body 15 is provided substantially at the center of the inner edges of the left and right frames 12, and the mounting body 15 and the backrest portion 7 of the wheelchair, which will be described later, constitute an upper half body placing portion of the bed frame body 1. The frame 16 is pivotally attached.

Further, the left and right mounting bodies 15 are provided with bending bodies 17 and 25 which constitute the left and right lower body placement portions of the bed frame 1. The bent bodies 17, 25 are upper bodies 17a, 25a and lower bodies 17b, 25
b is a structure in which the upper body 17a, 25a is pivotally attached to the mounting body 15, and the lower body 17b, 25b near the lower end is a mounting plate body projecting on the inner edge of the left and right frames 12. The structure is placed on and abutted on 18.

A support rod 95 is provided on the upper ends of the left and right bent bodies 17 and 25, and a connecting rod 19 is installed between the support rods 95.

A locking rod 20 is provided at the inner edges of the left and right bent bodies 17 and 25 so as to be projected and retracted by a solenoid, and at the inner edges of the tips of the bent bodies 17 and 25, a lower swinging body 42 of a wheelchair described later. Locking rods 21 fitted in receiving holes 59 provided on the left and right ends of the
Is provided so that it can be sunk freely. Incidentally, the projecting and retracting movement of the locking rod 21 is configured to be performed manually.

Reference numeral 84 is a locking rod by the operation of the solenoid.
It is a gear that meshes with the tooth portion of the locking rod 20 that causes the 20 to project and retract.

In the longitudinal direction of the back side of the left and right bent bodies 17, 25,
Expansion and contraction rods 22 and 23 in which a ball screw mechanism is incorporated are arranged. L is attached to the tip of the elastic rod 22 arranged on the back side of the bending body 17.
A U-shaped arm rod 24 is pivotally attached, and the tip of the L-shaped arm rod 24 is fixed near the lower end of the U-shaped frame portion 16.

An L-shaped arm rod 26 is pivotally attached to the tip of a telescopic rod 23 disposed on the back side of the bent body 25, and the tip of the L-shaped arm rod 26 is the base of the upper body 25a of the bent body 25. It is fixed near the edge. A pillar 27 with casters is vertically installed at four corners of the bed frame 1, and an elevating leg 28 having a ball screw mechanism is vertically installed inside the pillar 27. Reference numeral 29 is a motor for operating the ball screw mechanism, 30 is a fixed case cylinder fitted to the expandable members 22 and 23, 48 is a guide rod, and 85 is a handrail detachably fitted to the upper end of the column 27 with casters. is there.

The structure of the wheelchair is as follows.

The wheelchair includes a base frame 31 with wheels and the base frame.
31 and a sick person placing portion 10 that is detachably locked.

Shafts are provided on the left and right sides of the rear rail of the base frame 31, and wheels 34 are rotatably provided on the shafts. A curved support rod 35 that bends rearward is pivotally attached to the front left and right of the base frame 31, and a shaft is provided at the lower end of the curved support rod 35 so that the steering wheel 36 can rotate. It is movably installed. Reference numeral 96 is a brake device.

A projecting frame 37 is fixed to the front portion of the base frame 31 in a downwardly inclined state, and locking rods 3 are provided on the left and right of the front end of the projecting frame 37.
8 is projected. Further, a mounting plate 39 is provided substantially in the center of the protruding frame 37 and substantially in the center of the front part of the base frame 31, and the mounting plate 39 is provided.
An elevating wheel body 41 that is moved up and down by stepping on the pedal 40 is fixed to the lower end of the.

On the left and right of the rear part of the base frame 31, there is the sick person placing part 10 described below.
A receiving body 43 for receiving is attached, and a locking receiving body 44 having a V-shaped recess is fixed to the receiving body 43.

A U-shaped receiving portion 57 for receiving the left and right frames of the seating portion 8 is provided on the left and right of the front portion of the base frame 31.
Reference numeral 49 is a guide roller that abuts on the guide rod 48 to favorably connect and separate the wheelchair and the bed frame 1.

The sick person placing portion 10 includes a backrest portion 7, a seating portion 8,
It is composed of a footrest section 9.

At the front edge of the seating portion 8, the leading edge is the projecting frame 37.
An upper oscillating body (32) having a length that abuts on the tip edge of the upper oscillating body is pivotally attached, and a lower oscillating body (42) is pivotally attached to the tip of the upper oscillating body (32). The left and right rods of the lower swinging body 42 are configured to be located outside the left and right rods of the upper swinging body 32, and the base ends of the left and right swings of the lower swinging body 42 are slightly extended to engage the protruding frame 37. It is configured so that it can be locked with the stop rod 38.

The base frame is provided on the left and right of the rear end of the seat 8.
A support body 45 placed on the receiving body 43 of 31 is vertically provided, and a plurality of locking pins 46 arranged so as to draw a substantially arcuate locus project from the outer surface of the support body 45.

Further, at the rear end of the outer surface of the support body 45, a pin 47 for engaging with the engagement receiving body 44 of the base frame 31 is provided in a protruding manner.

A backrest portion 7 is pivotally attached to the rear edge of the seat portion 8, and a pipe having a protruding and retracting rod 50, which is engaged and retracted between the retaining pins 46, is installed in the left and right rods constituting the backrest portion 7. 51 is stuck. A suspension rod 52 is connected to the pipe 51,
52 is connected to the gripping rod 33. At the center of the gripping rod 33, a hook rod 53 that is locked to the upper rod of the backrest portion 7 is pivotally attached. Further, a horizontal rod 5 fitted to the horizontal rod fitting portion 6 is provided near the lower end of the back surface of the backrest portion 7, and the lower side of the horizontal rod 5 is in contact with the front surface of the horizontal rod fitting portion 6. A stopper plate 54 is attached.

Reference numeral 11 denotes a pin 55 and a hook rod 56 which are released at the same time when the projecting and retracting rod 50 is retracted into the pipe 51 by the movement of the suspension rod 52.
It is a safety device composed of and. Reference numeral 58 indicates each motor 2
9. A control unit for controlling the solenoid, which can perform various controls such as sequence control and microcomputer control. Therefore, the bed according to the present embodiment can of course be remotely operated, and a design can be made so that, for example, all the operations are automatically performed by pressing the "carry for sick person" button on the remote controller.

Since this embodiment has the above-mentioned structure, the following operational effects are exhibited.

A sick person sleeps on the bed in a state where the wheelchair and the bed frame 1 are fitted and connected to each other and the bed surface is flat.
In this state, the column 27 with casters is grounded on the floor surface.

The base frame 31 of the wheelchair is positioned at a predetermined position of the bed, that is, below the sick person placing portion 10 constituting the bed. Then, the sick person is placed on the sick person placing portion 10.

Subsequently, for example, a signal is sent to the control unit 58 by remote control, and the motor 29 is operated by the signal from the control unit 58 to extend the four lifting legs 28 and raise the bed to a predetermined height. The telescopic rod 22 is extended and the L-shaped arm rod 24 is activated to tilt the U-shaped frame portion 16 to a desired angle. At this time, the hook rod 53 pivotally attached to the gripping rod 33 is locked to the upper rod of the backrest portion 7, and the protruding and retracting rod 50 is a locking pin.
Since it is not located between 46, the backrest 7 is in a free state. Therefore, as the U-shaped frame portion 16 tilts, the backrest portion 7 tilts at the same time. Subsequently, the motor 29 of the lifting leg 28 is operated by a signal from the control unit 58 to lower the bed frame body 1, the support body 45 is placed on the receiving body 43, and the pin 47 is fixed to the locking receiving body 44. Mating to form a wheelchair,
Further, the bed frame 1 is lowered to release the fitting between the horizontal rod 5 and the horizontal rod fitting portion 6, and the bed frame 1 and the wheelchair are separated.

Then, the solenoid is operated in response to a signal from the control unit 58 to project the locking rod 20 on which the foot rest 9 is placed to be retracted, and then the locking rod 21 is manually pushed on the wheelchair. The upper swinging body 32 and the lower swinging body 42 are slid out from the receiving hole 59, and the left and right levers of the lower swinging body 42 and the locking rods 38 of the projecting frame 37 are locked to bend the foot rest 9.

Subsequently, the hook 53 and the upper bar of the backrest 7 are unlocked, and the projecting and retracting bar 50 is positioned between the desired locking pins 46 to fix the backrest 7 at a desired angle.

Then, the wheelchair is pulled out from the introduction opening 3 of the bed frame 1. In this case, the wheel assembly of the wheelchair 41
Wheel and the rear wheel 34 are grounded, and the steering wheel 36
Since it is not grounded, the wheelchair can be pulled out linearly from the bed frame 1. Further, since the guide roller 49 is in contact with the guide rod 48, the wheelchair can be reliably pulled out linearly also at this point.

[0037] When the wheelchair drawer is completed, pedal 40
The wheel of the pedal 40 is lifted by pressing, and the wheelchair is supported by the front and rear wheels 34 and the steering wheel 36, and the sick person is transported to a desired place by the wheelchair. At this time, since the steering wheel 36 is pivotally supported by the curved support rod 35 that curves to the rear side, the straightness of the wheelchair is maintained.

When the sick person put on the wheelchair returns, first, the motor 29 is operated by the signal from the control unit 58, the elevating leg 28 is contracted to lower the bed frame 1, and then the pedal 40 is depressed to depress the pedal 40. The wheels are grounded and the steering wheels 36 are floated. In this state, the wheelchair is pushed to introduce the wheelchair into the bed frame 1 through the introduction opening 3, and the stopper plate 54 contacts the front surface of the lateral rod fitting portion 6. Stop pushing the wheelchair at the contact position. At this position of the wheelchair, the lateral rod 5 of the wheelchair is located above the lateral rod fitting portion 6 of the bed frame 1.

In this state, when the motor 29 is operated by the signal from the controller 58 to raise the bed frame 1, the pin 47 is moved.
Is disengaged from the lock receiving body 44 and the base frame 31 of the wheelchair is released.
When the bed frame 1 is further lifted, the horizontal rod 5 and the horizontal rod fitting part 6 are engaged with each other to connect the patient placement part 10 and the bed frame 1 to each other. To be done. In this state, the gripping rod 33 is moved, the hook rod 53 is locked to the upper rod of the backrest portion 7, the projecting and retracting rod 50 is pulled out from between the locking pins 46, and the backrest portion 7 is set in the free state, and the predetermined angle is set. The backrest portion 7 is brought into contact with the fixed U-shaped frame portion 16.

Subsequently, the engagement between the locking rod 38 and the left and right rods of the lower sliding body 42 is released to bring the seat 8, the upper sliding body 32, and the lower sliding body 42 into a flat state, and the locking rod is fitted into the receiving hole 59. 21 is inserted and the foot rest 9
To prevent the foot from bending
Is mounted on the locking rod 20 and supported. Subsequently, the upper half of the bed frame 1 including the backrest 7 and the U-shaped frame 16 is slid by a signal from the controller 58 to flatten the bed surface, and the bed frame 1 is fixed. The series of operations is completed by lowering the height to a predetermined height.

When the telescopic rod 23 is moved by a signal from the control unit 58, the L-shaped arm rod 26 is slid, and the slidable L-arm rod 26 slid the upper body 25a to move the upper body 25a and the lower body 25b. The pivotally-attached portion to and moves upward, the lower body 25b slides on the mounting plate body 18 toward the bed head mounting portion, and the bending body 25 bends. The upper body 17a connected by the connecting rod 19 is also moved by the swing of the upper body 25a, so that the left and right bent bodies 17 and 25 are bent upward at the same time, and the lower body 17a is bent at the same time.
b and 25b slide to the bed head mounting side. This bent body 17
With the bending of 25 and sliding of the lower bodies 17b and 25b, the locking rod 20
As a result, the foot rest 9 of the wheelchair, which is placed on the bending bodies 17 and 25 and is connected by fitting the lower bodies 17b and 25b and the receiving holes 59, is also bent.

Therefore, even if the backrest portion 7 and the U-shaped frame portion 16 tilt, the sick person on the bed can be firmly held in position without sliding.

[0043]

Since the present invention is constructed as described above,
When moving a sick person who is sleeping in a bed to a desired place, the sick person can be placed in a wheelchair even if the caregiver does not hold the sick person, and thus the sick person can be placed without any burden on the sick person. (EN) Provided is an excellent bed-fitting wheelchair that can be moved.

[Brief description of drawings]

FIG. 1 is a perspective view of the present embodiment.

FIG. 2 is a perspective view of the present embodiment.

FIG. 3 is a partial front view of the present embodiment.

FIG. 4 is a plan view of part of the present embodiment.

FIG. 5 is a perspective view of a part of the bed frame body of the present embodiment.

FIG. 6 is an operation explanatory view of a main part of this embodiment.

FIG. 7 is an operation explanatory view of a main part of this embodiment.

FIG. 8 is a side sectional view of an essential part of this embodiment.

FIG. 9 is a front sectional view of a main part of this embodiment.

FIG. 10 is an operation explanatory diagram of the main parts of the present embodiment.

FIG. 11 is a perspective view of the wheelchair of this embodiment.

FIG. 12 is a side view of the above.

FIG. 13 is a partial exploded side view of the above.

[Explanation of symbols]

 1 bed frame 2 notch window 7 backrest 8 seating 9 foot rest 10 patient rest 31 base frame

Claims (1)

[Claims] 1. A notched window portion 2 of a bed frame 1 having a U-shaped notched window portion 2 and having an upper body placing portion capable of being raised and lowered and being capable of ascending and descending by an appropriate means. The wheelchair is provided with a sick person placing section 10 in which a backrest section 7, a seating section 8 and a foot resting section 9 are sized so as to fit exactly into the cutout window section 2, and the seating section 8 is provided. On the other hand, a backrest portion 7 and a foot rest portion 9 are slidably provided, and a base frame 31 with a moving means is detachably attached to the sick person rest portion 10 below the sick person rest portion 10. A bed-fitting wheelchair provided with a connecting part for connecting the bed frame 1 and the sick person placing part 10 fitted into the cutout window part 2.