JPS63270053A - Bed - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application 1] The present invention relates to a bed, particularly a rehabilitation bed suitable for training in standing up and walking, defecation, etc.

[Prior art and its problems] Conventionally, when getting up from a bed and trying to walk on the floor, you have to move your hips to the side of the bed before you can put your feet on the floor. There was no rice to add.
゛Particularly for patients who require rehabilitation training, the above-mentioned movement of the lower back is a great burden, and this type of bed is extremely inconvenient for defecating.

In order to eliminate this inconvenience, the foot part of the bed lowers than before, so that the patient does not have to shift his/her body. Beds have been developed that are convenient for people to defecate in the cold.

However, even with this type of improved bed, the height of the descending part where the feet are attached is not the same as the floor surface and there is a step, so when using this type of bed for walking training, it is difficult to avoid obstacles due to this step. The problem was that it was impossible to move forward, and that the footing was unstable because you had to walk on a lowered bed at first, so it was not useful for walking training.

[Object of the Invention 1] The present invention was made to solve the above-mentioned conventional problems, and it is possible to easily put the feet on the floor while sitting on the bed without any hindrance. The purpose is to provide a bed that allows the user to move forward for walking training and to defecate in a comfortable position.

[Structure 1 of the Invention] The bed of the present invention has a lower pinerest that supports the legs of a patient, etc. divided into left and right movable pinerests, and at least a central portion of the movable pinerest is lowered and opened to the left and right to reveal the floor surface. The central part of the movable pinerest is supported by a lowering opening part, and the lowering opening part is lowered in a horizontal state by a parallel link mechanism part and opened to the left and right. This is a characteristic feature.

[Embodiment 1] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a main frame made of, for example, an angle member having a cross-sectional shape, and is disposed on the left and right sides of the bed. The rear end portion (title 1) of the seven main frames 1 is integrally connected and fixed by a helad board 2, and the intermediate portion by a connecting frame 3.

Below the seven main frames 1, an auxiliary frame 4 made of, for example, a square pipe is arranged in parallel. At the front ends (legs) of the main 7 frames 1 and the auxiliary 7 frames 4, there are leg plates 5.
is installed.

Reference numeral 6 denotes an upper mattress, which is raised from a horizontal position as shown in the figure by a conventionally known actuating means (not shown), and functions as a backrest when the upper body of a human body (patient) is raised.

Of the upper mattress 6, the medium-heat part 6', which supports the patient's lower back, is preferably removed during defecation so that a toilet bowl can be accommodated therein.

The lower massetress 7 that supports the patient's legs is divided into left and right movable massetresses 7 at 7 a.

FIG. 3 is a diagram showing the operating mechanism with the movable pinerests 7a, 7a removed, and basically the movement is lowered by the action of the parallel link 8!1 structure 8 and the parallel link mechanism s8. It consists of a lower opening n9 that opens left and right.

As is clear from FIG. 4, the parallel link mechanism section 8 includes two parallel links 8a and 8b, and an actuating piece 8e connected to the tips of these links by a bottle joint 8c=8d. The above-mentioned parallel link 8a
The base end of the parallel link 8b is fixed to the rotary drive shaft 10, and the base end of the parallel link 8b is pivotally connected to the main frame 1 through a pivot pin 80. The above rotary drive shaft 10 also has 7 main frames 1
etc., so that it can rotate freely. Furthermore, the length of the parallel links 8a, 8b, that is, the pin joint 8c
The distance between the rotary drive shaft 10 and the above-mentioned bottle joint 8d and the pivot pin 8f are equal, and the distance between the rotary drive shaft 10 and the pivot pin 8f and the distance between both pin joints 8e and 8d are equal. , the whole constitutes a parallelogram link mechanism.

Therefore, when the rotation drive shaft 10 is rotationally driven, tjS
As shown in FIG. 4, the actuating piece 8e moves from the solid line state to the virtual line state while maintaining its posture.
The lowering part 9 integrated with the lower opening part 9 also moves left and right while descending while maintaining a horizontal state as shown in the figure.

As is clear from Figure I:A4, the parallel link 8b is bent into a trapezoidal shape so as not to interfere with the auxiliary seven arms 4 when pivoted downward.

FIG. 5 shows the drive R side of the rotary drive shaft 10, and the output shaft 11a of the electric motor 11 has a joint 11b.
The left and right threaded pongees 12 are connected via.

The left and right threaded shafts 12 are symmetrically threaded in opposite directions, and the movers 13 are screwed into each shaft. The mover 1
3 is pin-connected to an actuating piece 15 fixed to the rotary drive shaft 10 via a connecting rod 14.

Therefore, when the electric motor 11 is operated, the left and right screw shafts 12 rotate, and the movers 13 move along the left and right screw shafts 12 toward each other or away from each other. When the slider 13 moves, the rotary drive shaft 10 rotates via the connecting rod 14 and the actuating piece 15, and as shown in FIG. 4, the parallel link mechanism 8 is actuated.

FIG. 6 shows another embodiment for rotationally driving the rotary drive shaft 10. For example, a disk 17 is rotated by a hydraulic jack 16, and the connection rod 14 is attached to the disk 17.
are pivotally connected to each other so that the rotary drive shaft 10 is rotationally driven via the operating piece 15.

FIG. 7 shows yet another embodiment for rotationally driving the rotary drive shaft 10, in which a wire 18 is tied to the actuating piece 15, and the wire 18 is passed through an intermediate pulley 19 to a winding boot. 920 for winding. The winding boot 1J20 is rotated by the /N handle 21. In this embodiment, the rotary drive shaft 10 is always biased in the direction of rotation that pulls the wire 18 due to the load of the movable pinerest 78, etc., so simply loosening the handle 21 allows
The movable pinerest 7a can be heard from side to side while descending.

FIG. 8 shows another embodiment of the manual link mechanism 8, in which the base end of the parallel link 8a is simply pivotally connected to the main frame 1 by a pivot pin 22, and the parallel link 8a is
Attach the engagement pin 23 in the middle of a. A push rod 24 is attached to the rotary drive shaft 10 to support the engagement pin 23 by pressing it against it from below.

In the above embodiment, as shown in FIG. 9, the movable pinerest 7a is lowered and opened, but the present invention is not limited to this. For example, as shown in FIG. Outer pine tress 7a of 7a
' may remain fixed, and only the inner pine tress 7a'' may be lowered and opened. In this case, each pine tress 7a'' may be lowered and opened.
The widths of a' and 7a'' can be set freely.

In addition, in Fig. 1, 25 is a handrail, and the main 7 on the left and right
It protrudes inward from frame 1, and when you stand up and start walking, you grab onto this to keep your body stable. This handrail 25 is removable.

[Effect of the invention 1 (1) The lower pinerest supporting the legs of the patient, etc. is divided into left and right movable pinerests, and at least the center portion of the movable pinerest is lowered and opened to the left and right to reveal the floor surface. , the patient can be easily lowered while resting on the movable pinerest without having to lift the patient's legs, thereby placing no burden on the patient.

(2) The central part of the movable pinerest is supported by the lowering opening part, and the lowering opening part is lowered horizontally by the parallel link mechanism and opens to the left and right, so that the movable pinerest can be moved within 7 frames of the bed. The central part of the building can be lowered and opened to the left and right to expose the floor surface, and can be configured to maintain structural strength.

[Brief explanation of the drawing]

FIG. 1 is an external view showing one embodiment of the bed of the present invention, and FIG.
The figure is a plan view showing the main parts of the mechanism, Fig. 3 is a perspective view of the main parts of the mechanism, Fig. 4 is an explanatory diagram of the operation of the descending opening W1 structure, Fig. 5 is an explanatory diagram of the operation of the drive mechanism, fIS Fig. 6 and Fig. 7 Each figure is an operation explanatory diagram showing another embodiment of the drive mechanism, FIG. 8 is an operation explanatory diagram showing another embodiment of the descending opening mechanism, FIGS.
FIG. 0 is an operation explanatory diagram showing the movement of each movable mattress. 1... Main frame, 2... Headboard, 3...
7 connected frames, 4... auxiliary frame, 5... leg plate,
6... Upper pine tress, 6'... Center part, 7...
Lower pinerest, 7a...movable pinerest, 7a'.
...Outer pine tress, 7a''...Inner pine tress, 8...Parallel link rocky structure, 8 a, 8 b...
Parallel link, 8c, 8d...pin joint, 8e...
- Actuation piece, 8f... Pivot pin, 9... Lowering part, 10
...Rotation drive shaft, 11...Electric motor, lla.
...Output shaft, 11b...Joint, 12...Left and right screw shaft, 13...Scillator, 14...Connection rod, 15...Operating piece, 16...Hydraulic jack, 17...・Disc, 18
... Wire, 19 ... Intermediate pulley, 2o ... Take-up pulley, 21 ... Handle, 22 ... Pivot pin,
23... Engagement pin, 24... Push up lever, 25... Handrail.

Claims (2)

[Claims] (1) A bed characterized in that a lower mattress that supports the legs of a patient, etc. is divided into left and right movable mattresses, and at least the center portion of the movable mattress is lowered and opened left and right to reveal the floor surface. . (2) In a bed in which the lower mattress supporting the legs of the patient, etc. is divided into left and right movable mattresses, at least the center portion of the movable mattress is lowered and opened to the left and right to reveal the floor surface. A bed characterized in that a center portion of a movable mattress is supported by a sliding portion, and the sliding portion is lowered in a horizontal state by a parallel link mechanism and can be opened left and right.