JPH0716511B2 - Bed for bedridden sick and elderly - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a comfortable bedridden / elderly bed in which the bed body can be changed from a horizontal state to a chair state according to the purpose of use such as eating and reading.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
Beds for the bedridden sick and the elderly are provided with a back support frame, hip support frame, leg support frame, foot support frame, etc., which are kept horizontal when sleeping and are transformed into chairs, for example, when eating. Is designed to.

The inventor has installed a lift motor for a back support frame and a lift motor for a foot support frame as a system for surely performing this operation.
By adopting a structure in which the back support frame is raised and lowered by the former and the leg support frame is rotated by the latter, the present invention for reliably performing a chair-shaped deformation operation has been completed.

[0004]

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

A leg receiving frame 3 having a length corresponding to the length from the knee to the base of the foot is provided on the knee side of the main body frame A in which the hip mounting frame 2 is flexibly connected to the waist side of the back receiving frame 1. Pivotally connect freely,
A footrest frame 4 is rotatably and pivotally connected to the foot portion side of the leg receiving frame 3, and a forward / reverse rotatable lifting motor 11 for the backrest frame is provided at the lower portion of the main body frame A. The backrest frame 1 is movably provided by a screw mechanism provided on the main shaft of the mainframe 11, and a footrest frame raising / lowering motor 10 capable of forward and reverse rotation is provided separately from the backrest frame raising / lowering motor 11 at the lower part of the main body frame A. An expandable telescopic rod 13 connected to the main shaft of the elevator motor 10 via a screw mechanism is pivotally connected to the leg receiving frame 3 so that the leg receiving frame 3 can be raised and lowered, and the lower portion of the main body frame A and the footrest are mounted. A restriction link rod 16 is pivotally mounted on the lower part of the frame 4, and the length of the telescopic rod 13 and the length of the restriction link rod 16 are lowered by the telescopic operation of the telescopic rod 13 so that the leg receiving frame 3 moves to a horizontal position. While the footrest frame 4 is maintained in a substantially horizontal state when performing a bending operation in an operation area with an inclined position, By being configured to regulate the length of descending operation are those pertaining to the bed for bedridden sick-elderly characterized by.

[0006]

EXAMPLE A body frame A in the drawings has a length corresponding to a length from a patient's head to a waist, and a length corresponding to a length from a waist to a knee on a back side of a back receiving frame 1 corresponding to the length. The hip mounting frame 2 is rotatably and pivotally connected, and the leg receiving frame 3 is attached to the rear portion of the hip mounting frame 2 on the knee side.
Is rotatably pivoted, and a footrest frame 4 is rotatably and pivotally connected to the rear portion of the leg receiving frame 3 at the base of the foot.
The base frame 9 with legs is integrally formed on the front part of the, and the required area where the folding base edge 5 is connected to each of the back support frame 1, the bottom mounting frame 2, the leg receiving frame 3, the foot mounting frame 4 , The case where each bed mat 6 formed to a required thickness is placed.

A more detailed description will be given.

In the drawing, connecting pieces 7 that are slightly lower than the upper surface of the bed mat 6 are erected on the left and right sides of the opposite ends of the back receiving frame 1 and the backrest frame 2, respectively, and the overlapping portion is formed from the upper edge of the connecting piece 7. Are connected and pivoted on the left and right by a pivot shaft 8.

In the drawing, the rear side of the leg receiving frame 3 is pivotally connected to the left and right inner surfaces of the rear side of the knee mounting side of the hip mounting frame 2 by a pivot shaft 8 near the bending base edge 5 of the bed mat 6. The case is shown.

Further, in the drawing, connecting pieces 7 which are slightly lower than the upper surface of the bed mat 6 are erected on the left and right sides of the opposing ends of the leg receiving frame 3 and the footrest frame 4, respectively, and the upper edges of the connecting pieces 7 The leaning overlap portion is connected and pivotally connected to the left and right by a pivot shaft 8.

A bending mechanism for bending each of the constituent frames shown in the drawings and for holding the frame horizontally will be described below.

A leg receiving frame raising / lowering motor 10 and a back receiving frame raising / lowering motor 11 capable of rotating in the forward and reverse directions are attached to the lower portion of the base side frame 9 with legs via brackets 12, respectively.
A long telescopic rod that is connected to the main shaft of each other by a screw mechanism a and extends and contracts by forward and reverse rotations of the leg receiving frame lifting motor 10.
The tip of 13 is pivotally connected to the lower portion of the leg receiving frame 3 on the bent portion side via a link piece 14, and a regulating link piece 15 is provided at the center of the lower portion of the base frame 9 with legs and the lower portion of the footrest frame 4. The restriction link rod 16 is pivotally installed via the above-mentioned structure, and the length of the telescopic rod 13 and the length of the control link rod 16 are adjusted by the extension / contraction operation of the telescopic rod 13 by the rotation of the leg receiving frame lifting motor 10. Has a length such that the footrest frame 4 moves up and down in a substantially horizontal state when moving up and down in an operating region between a horizontal position and a downwardly inclined position, and the screw mechanism a is also different from the main shaft of the hoisting motor 11. The distal end of a short telescopic rod 17 which is connected to and is extended and retracted by the forward and reverse rotations of the leg receiving frame elevating motor 11 is pivotally connected to the lower part of the backrest frame 1 side of the spine receiving frame 1 via a link piece 18, The inclination of the back support frame 1 is adjusted by the extension / contraction operation of the extension / contraction rod 17 by the lifting motor 11 for It shows a case where it is configured to.

A bed mat 6 is provided on the upper surface of the back support frame 1, the hip mounting frame 2, the leg receiving frame 3, and the foot mounting frame 4 which constitute the bed body A.
Is placed on the bed mat 6 and
It shows a case where the bent parts of 3 and 4 are bent and the ones connecting between the bent base edges 5 are additionally provided. It is the same even if is attached to each component frame 1, 2, 3, 4.

Since this embodiment has the above-mentioned structure, the lifting motor is used in a normal bed use condition as shown by the imaginary line in FIG.
When 10 is rotated with a push button switch, etc., the telescopic rod 13
Is reduced by the screw mechanism a as a whole, whereby the leg receiving frame 3 is rotated downward about the pivot shaft 8, and at this time, the footrest frame 4 is lowered by the restriction link rod 16 while maintaining a substantially horizontal state. , Stop at the position indicated by the solid line in FIG.

Further, when the leg receiving frame elevating motor 10 is rotated in the reverse direction, the telescopic rod 13 is extended by the screw mechanism a and returns to the ordinary flat state shown by the imaginary line in FIG.

When the back frame elevating / lowering motor 11 is appropriately rotated by a push button switch or the like, the telescopic rod 17 also contracts, and the back frame 1 rotates upward about the pivot shaft 8,
It stands up from the imaginary line in FIG. 1 to the solid line, and when it is rotated in the opposite direction, it returns to a normal flat state.

Further, in this embodiment, as shown by an imaginary line in FIG. 2, a toilet bowl 19 is provided on a portion of the hip mounting frame 2 where the patient's hip touches.

[0018]

Since the present invention is configured as described above, the backrest frame is raised or lowered and the leg support frame is rotated to rotate a normal bed by simply rotating the lifting motor forward and backward. When the chair is changed from the use state to the chair state, when the main shaft is rotated in the opposite direction, the folded state returns to the horizontal bed use state. Therefore, the leg receiving frame 2 and the footrest frame can be very easily and smoothly. 3 can be flexed, which allows the patient to sit comfortably on a chair while eating, reading and reading. At this time, the footrest frame is raised and lowered by controlling the lengths of the telescopic rod and the regulation link rod so that the footrest frame is always raised and lowered while maintaining a substantially horizontal state. It is convenient for bedridden sick people and elderly people who have a comfortable bed.

Further, since the above-described bending operation is obtained by the telescopic rod which expands and contracts by the screw mechanism, the operation is extremely smooth and the structure thereof can be simplified to be manufactured at an extremely low cost. become.

Since two lifting motors for the leg receiving frame and two lifting motors for the back receiving frame are provided side by side, the back support plate is raised and lowered on the one hand, and the leg receiving plate is turned down on the other hand, the respective operations are properly performed. Can be done.

As described above, the present invention provides a bed for a bedridden patient / elderly person who has an epoch-making effect such that he / she can use it by resting like sitting on a chair when eating or reading. Become.

[Brief description of drawings]

FIG. 1 is an overall side view of this embodiment.

FIG. 2 is an overall bottom view of this embodiment.

FIG. 3 is an explanatory side view of the present embodiment.

[Explanation of symbols]

 1 Back support frame 2 Bottom support frame 3 Leg support frame 4 Foot support frame 10 Foot support frame lifting motor 11 Back support frame lifting motor 13 Telescopic rod 16 Restriction link rod A Main frame

Claims (1)

[Claims] 1. A leg receiving frame having a length corresponding to the length from the knee to the base of the foot is bent on the knee side of a main body frame in which a hip mounting frame is flexibly connected to the waist side of the back receiving frame. The leg receiving frame is freely pivotally connected, and the foot mounting frame is pivotally connected to the leg portion side of the leg receiving frame so as to be bendable, and a forward / reverse rotatable lifting motor for the back receiving frame is provided at the lower portion of the main body frame. The backrest frame is erected freely by the screw mechanism provided on the main shaft of the elevator motor, and the lifter motor for the footrest frame is installed at the bottom of the main body frame separately from the lifter motor for the backrest frame. An expandable telescopic rod connected to the main shaft of the motor via a screw mechanism is pivotally connected to the leg receiving frame to provide the leg receiving frame so that it can be raised and lowered, and a regulation link is provided between the lower portion of the main body frame and the lower portion of the footrest frame. The rod is pivotally mounted, and the length of the telescopic rod and the length of the regulation link rod are adjusted by the telescopic operation of the telescopic rod. When the leg receiving frame bends in an operating region between a horizontal position and a downwardly inclined position, the leg mounting frame is restricted to a length such that it can move up and down while maintaining a substantially horizontal state. Bed for bedridden sick people and the elderly.