JP2001198164A - Care bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a care bed that significantly facilitates caregiving work of a caregiver and poses no pain, and the like, to a person in need of care. SOLUTION: A mat frame (a) of the care bed A comprises a leg part 1, a lumbar part 2, a backrest part 3 and a pillow part 4. When the backrest part 3 is raised with raising and lowering means B and the pillow part 4 is also raised with inclining means C as the backrest part 3 is raised, the head of a person in need of care is pushed up into a bending position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a care bed.

[0002]

2. Description of the Related Art Japanese Patent Publication No. Hei 8-2330 discloses beds for the elderly and those who need nursing care.
There are Japanese Patent Application Laid-Open No. 9-122186 and Japanese Utility Model Registration No. 3038378.

[0003]

However, since the backrest portion (consisting of the backrest portion and the seat portion or the back bottom and the waist bottom) of each of the known beds is configured to be undulating,
The posture from the waist to the head of the person when the backrest is raised is in a state where the backrest rests on the backrest.

[0004] Then, each time the caregiver inserts his hand behind the head (neck) of the person who needs care and raises the head forward, so that the caregiver is in an unreasonable posture and has low back pain. And cause fatigue on the wrists and arms.

[0005] The above-described problem also occurs in a system in which the waist portion and the backrest portion of the bed are pulled out to the side and the legs are grounded or hung.

[0006] That is, the posture of the person in need of nursing care is not suitable for standing up, and the caregiver becomes physically hard working beyond the limit.

It is an object of the present invention to provide a bed in which care of a caregiver becomes extremely easy and a person in need of care does not feel pain.

[0008]

In order to solve the above problems, the present invention provides a mat frame in a bed,
A leg, a waist, a backrest portion, and a pillow portion, and the backrest portion is provided so as to be able to be raised and lowered by appropriate lifting means, and the pillow portion is used to raise the backrest portion. A structure provided so as to be caused by appropriate tilting means is adopted.

The waist, the backrest, and the pillow may be provided on a retractable frame that slides to the side.

Further, the waist, the backrest, and the pillow are
In addition to providing the retractable frame that slides to the side, auxiliary wheels may be provided on the projecting side of the retractable frame via interlocking means so as to be pushed out with the protrusion of the retractable frame and interlocked so as to be pulled back as the retractable frame enters. .

A mat frame composed of the leg, the waist, the backrest, and the pillow may be provided on an elevating frame that moves up and down via appropriate elevating means.

[0012]

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

In the first embodiment of the present invention, as shown in FIGS. 1 to 6, a mat frame a of a bed A includes a leg 1, a waist 2, a backrest 3, a pillow 4, It is composed of

The backrest 3 is connected to the waist 2 and the pillow 4 is connected to the backrest 3 via a hinge 5 so as to be bent.

Further, the backrest portion 3 can be freely raised and lowered through appropriate raising and lowering means B.

The raising and lowering means B includes, for example, a female screw 7 reversibly rotating at a fixed position by the operation of the first motor 6 in the case shown, a male screw 8 screwed into the female screw 7, and a lower part of the backrest 3. A first link 11 supporting a bent portion in the middle of the support member 9 via a pin 10 on the side, and a waist-side end of the first link 11 and an end of a male screw 8 at both ends via a pin 12 And a rotor 14 that is pivotally supported at the tip of the first link 11 and contacts the lower surface (back surface) of the backrest portion 3. When the screw 8 is moved forward (toward the head side of the bed A), the first link 11 is rotated clockwise in FIG. 3 via the second link 13 projecting in the same direction as the male screw 8.

Then, the first link 1 which rotates in the upright direction.
The first rotor 14 is moved from the back pillow 4 side of the backrest 3 to the waist 2
Then, the backrest 3 is erected as shown by the chain line in FIG.

When the upright backrest 3 is to be tilted, the first motor 6 may be operated in reverse.

In short, any structure can be used as long as the backrest portion 3 is raised and lowered (using a method) by the reversible operation of the first motor.

Further, the pillow portion 4 is raised by the tilting means C when the backrest portion 3 stands.

The tilting means C is, for example, shown in FIGS.
As shown in FIG. 6, a plate cam 16 whose projection gradually increases from both ends to the middle is fixed to both sides of the lower surface of the pillow portion 4, and the end is rotatably connected to the tip of the second link 13. A rotor 18 that contacts the plate cam 16 at the tip of the member 17
And a horizontal slot 21 provided in a horizontal strip 20 which is attached to the frame 19 of the backrest 3 and protrudes forward.
In addition, the shaft 22 for bearing the left and right rotors 18 is penetrated to ensure horizontal movement of the rotor 18 in the front-rear direction.

Then, as the backrest 3 rises, the second
Since the connecting member 17 is slid toward the waist 2 together with the link 13, the rotor 18 riding on the protruding edge of the plate cam 16 is used.
As a result, the pillow part 4 standing upright with the backrest part 3 is raised forward.

That is, the pillow portion 4 bends forward with respect to the backrest portion 3 standing up as shown by a chain line in FIG.

Note that the tilting means C is not limited to the above-described structure. For example, as shown in FIG. 5, both ends of the swing plate 26 on the support shaft of the hinge 5 between the pillow portion 4 and the backrest portion 3 are provided. A protruding piece 27 protruding upward from the middle is rotatably supported, and the tip of the swing plate 26 is rotatably attached to the side surface of the pillow 4 via a pin 28, and is rotated to the end of the swing plate 26. Child 29
And the other end of the spring rod 30 abuts on the lower surface of the pillow portion 4, and the other end of the spring rod 30 abuts on the lower surface of the backrest portion 3. The elasticity gives the pillow part 4 a turning property that bends forward, and the backrest part 3
When the pillow portion 4 is tilted to a horizontal position, the pillow portion 4 is tilted to a horizontal position while forcibly rocking the rocking plate 26 in the counterclockwise direction in FIG.

Then, the rotor 29 is disengaged from the stopper 31 when the backrest 3 is raised, so that the forcible swing of the swinging plate 26 is released. Since the pillow section 4 is raised, the above-described sliding interlock of the plate cam and the connecting member is not required.

In short, a tilting means for raising the pillow portion 4 when the backrest portion 3 stands up may be employed.

In the drawing, reference numeral 36 denotes a mat laid on the mat frame a, and reference numeral 37 denotes a connecting shaft between the second link 13 and the connecting member 17.

In the second embodiment of the present invention, as shown in FIGS. 1 to 5, 7 and 8, the waist portion 2, the backrest portion 3 and the pillow portion 4 of the first embodiment slide sideways. It is provided on the rising and falling frame 41.

In the case shown in the figure, the retractable frame 41 is provided with a waist portion 2 side and a backrest portion 3 of an elevating frame 44 (the reason why the elevating frame 44 is provided will be described later) located above a seat frame 43 with wheels 42. The slider 47 is interposed between the front and rear guide rails 45 provided on the side and the front and rear guide rails 46 provided on the waist portion 2 and the backrest portion 3. There is also a guide to.

Then, the backrest 3 is erected,
The pillow portion 4 is bent forward so that the posture of the person requiring care is shown by the chain line in FIG. 2, and then the retractable frame 41 is slid to one side of the bed A (as shown by the chain line in FIG. 1) to protrude. .

This projection causes the leg of the person requiring care to fall off the leg 1 (the boundary between the leg 1 and the waist 2 of the mat a is cut off) and hang down, so that the person stands up by himself or gets into a wheelchair. Becomes easier.

The slide in and out of the frame 41 is as follows.
It may be performed manually or by an electric method.

In the third embodiment of the present invention, as shown in FIGS. 7, 8 and 9, the projecting frame 41 of the second embodiment An auxiliary wheel 52 is provided, which is pushed out with the protrusion and retracted with the immersion frame 41 immersed.

In the case of the auxiliary wheel 51, a seating member 53 is provided below the projecting and retracting frame 41 in the case shown, and a slider 55 which slides in the projecting and retracting direction of the projecting and retracting frame 41 by a guide portion 54 of the seating member 53 is provided. Then, the slider 55
The moving auxiliary wheel 52 is provided at the tip of the projecting frame 41 on the protruding direction side, and the fixed auxiliary wheel 56 is provided on the seat member 53 on the distal end side of the slider 55.

The interlocking means 51 is connected to a fixed wheel 56 via a pin 57 on the lower surface of the retractable frame 41 in the case shown.
A first link 58 rotatably supporting the end of the direction end,
A second link 60 rotatably supported at the distal end of the first link 58 via a pin 59, a sliding member 61 such as a trochanter provided at the end of the second link 60 in the direction of the pin 57;
A guide 62 provided between both ends of the slider 55 to guide the sliding of the sliding member 61, and a first provided at both ends of the guide 62 to stop the sliding of the sliding member 61.
It comprises a stopper 63 and a second stopper 64.

When constructed as described above, the appearance frame 4
The first link 58 and the second link 60 which are pulled out in the same direction together with the protrusion of the sliding member 6 in the same direction.
1 runs.

Then, the sliding member 61 is attached to the first stopper 63.
When the collision occurs, the slider 5
5 and the movable auxiliary wheel 5 of the slider 55
2 moves (pulls out) in the protruding direction as shown in FIGS.

Therefore, even if the bed A is subjected to an eccentric load due to the projection of the retractable frame 41, the movable auxiliary wheels 5
2 stabilizes.

When the retractable frame 41 is retracted, the first link 58, the second link 60, and the sliding member 61 travel in the same direction together with the retractable frame 41.

Then, the sliding member 61 is attached to the second stopper 64.
Collides, the movable auxiliary wheel 52 is retracted as shown in FIG. 7 while sliding the slider 55 in the immersion direction of the retractable frame 41.

In the fourth embodiment of the present invention, as shown in FIG. 1, FIG. 2, FIG. 4, FIG. 7 to FIG. .

When the elevating frame 44 is raised and lowered via the elevating means 71, the leg 1, the waist 2 and the backrest 3 with the pillow 4 on the elevating frame 44 are raised and lowered together, and the leg of a person who needs nursing care is moved. Waist 2, leg 1 (backrest 3
) Can be adjusted freely.

The elevating means 71 comprises a female screw 73 which rotates reversibly at a fixed position by reversible operation of a second motor 72 in the case shown, a male screw 74 screwed into the female screw 73,
A first shaft 75 and a second shaft 76, which are mounted on the seat frame 43 and front and rear, and a second shaft 76 extending forward and downward from the first shaft 75.
A projecting piece 77 whose front end is fixed and protruded upward from the front,
78, and a first link 80 in which both ends are rotatably connected to the tips of the two projecting pieces 77, 78 via pins 79, respectively.
A projecting piece 81 having a distal end fixed to the second shaft 76 and projected forward and upward, and a pin 8 attached to the tip of the projecting piece 81 and the male screw 74.
A second link 83 rotatably connected at both ends through the second link 83;
A third link 84 having a distal end fixed to the first shaft 75 and protruding forward and a distal end fixed to the second shaft 76, respectively.
And a fourth link 86 having one end connected to the tip of each third link 84 and the other end rotatably connected to the lifting frame 44 via a pin 85, respectively.
The fourth link 86 is raised and lowered through the third link 84 while the first shaft 75 and the second shaft 76 are reversibly rotated while the third link 83 is moved forward or backward together with the male screw 74 by the operation described above. The backrest part 3, the waist part 2, and the leg part 1 with the pillow part 4 are raised and lowered together with the lifting frame 44, but other methods such as four fixed position driving (from the motor to the chain and sprocket) to the male screw Lifting frame 4
It is also conceivable that the female screw supported by 4 is raised and lowered by a method such as screwing.

As shown in FIGS. 7, 8, and 9, the distal end of the second link 60 is extended, and a slider 91 such as a trochanter is provided at the extended distal end.
Is guided by the guide rails 92 on the lower surface of the lifting frame 44, the lifting frame 44 can be raised and lowered without obstructing the operation of the first link 58 and the second link 60.

Further, a link (not shown) having a pantograph structure prevents the vertical movement of the lifting frame 44 to achieve stable lifting.

Further, it is preferable to provide a structure capable of moving up and down (of course, also having a swing function) by applying a downward pressing force to the auxiliary wheels 52 and 56 by a spring or the like to ensure smooth running.

The first motor 6 and the second motor 7
2 is not limited to a female screw and a male screw system, but may be an actuator, a rack and a pinion system, or the like.
The link 83 may be operated (advance / retreat).

[0048]

The care bed according to the present invention is constructed as described above, so that when the backrest is raised, the pillow can be automatically bent forward through the tilting means.

[0049] Therefore, the head of the person who needs the raised care is pushed forward, so that the care of the caregiver is made easy and extremely easy.

The same effect can be obtained when the retractable frame is projected to the side of the bed.

Further, since the auxiliary wheels are made to project in the same direction via the interlocking means when the retractable frame is made to protrude, stabilization can be achieved by the extended auxiliary wheels even if an eccentric load accompanying the projecting of the retractable frame acts. be able to.

Further, the height of the mat frame can be freely adjusted by the elevating frame, that is, it can be adjusted according to the length of the leg of the user.

[Brief description of the drawings]

FIG. 1 is a plan view showing a care bed according to the present invention.

FIG. 2 is a side view of the above.

FIG. 3 is a longitudinal sectional side view showing a main part of the above.

FIG. 4 is a partially cutaway side view showing a state in which the backrest is raised.

FIG. 5 is a partially cutaway side view showing another example of raising a pillow portion.

FIG. 6 is a perspective view showing undulating means of the backrest portion.

FIG. 7 is a vertical cross-sectional front view showing the emergence of auxiliary wheels.

FIG. 8 is a longitudinal sectional side view of the above.

FIG. 9 is a partially cutaway front view showing a protruding state of an auxiliary wheel.

FIG. 10 is a perspective view showing elevating means of the bed frame.

[Explanation of symbols]

 Reference Signs List A bed a bed frame B undulating means C tilting means 1 leg 2 waist 3 backrest 4 pillow 5 hinge 6 first motor 7 female screw 8 male screw 9 support member 10, 12 pin 11 first link 13 second link Reference Signs List 14 rotor 16 plate cam 17 connecting member 18 rotor 19 frame 20 band plate 21 long hole 22 axis 26 rocking plate 27 protruding piece 28 pin 29 rotor 30 spring rod 31 stopper 41 projecting frame 42 wheels 43 seat frame 44 elevating frame 45, 46 Guide rail 47 Slider 51 Interlocking means 52 Auxiliary wheel 53 Seat 54 Guide portion 55 Slider 56 Auxiliary wheel 57, 59 Pin 58 First link 60 Second link 61 Sliding member 62 Guide 63 First stopper 64 Second stopper 71 Elevating means 72 Second motor 73 Female screw 74 Male screw 75 1st axis 76 2nd axis 77, 78, 81 Projection piece 79, 82, 85 Pin 80 1st link 83 2nd link 84 3rd link 86 4th link

Claims (4)

[Claims] 1. A mat frame in a bed comprising a leg portion, a waist portion, a backrest portion, and a pillow portion, and the backrest portion is provided so as to be able to be raised and lowered by appropriate lifting means.
Also, the nursing bed, wherein the pillow portion is provided so as to be raised by appropriate tilting means when the backrest portion is raised. 2. The nursing care bed according to claim 1, wherein the waist, the backrest, and the pillow are provided on a retractable frame that slides to the side. 3. The waist portion, the backrest portion, and the pillow portion are provided on a retractable frame that slides to the side, and are pushed out on the projecting side of the retractable frame with the protrusion of the retractable frame, and as the retractable frame is retracted. The nursing care bed according to claim 1, further comprising an auxiliary wheel that is interlocked via an interlocking means so as to be pulled back. 4. A mat frame comprising a leg, a waist, a backrest, and a pillow is provided on an elevating frame which moves up and down via a suitable elevating means. 2. The nursing bed according to 1.