JPS6021726B2 - Raising mechanism of floorboards in beds etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a bed or the like having a structure in which a back floor plate, a waist floor plate, and a foot floor plate are supported on a base frame and are connected to each other in a flexible manner.
This invention relates to a floorboard undulation mechanism in which the foot floorboard is tilted below the base frame and the back floorboard is tilted mirror-slanted above the base frame to form a chair-like shape.

For example, as shown in Jitseki Sho 52-14 Waki No. 95, the foot floor plate is slanted below the base frame, and the back floor plate is slanted above the base frame so that it can be shaped like a chair. In the undulation mechanism of the floorboard, if the height of the floorboard is not raised when it is in a flat state, the lower end of the foot floorboard may get stuck on the floor surface of a hospital room etc. in the undulating state. If the angle of inclination of the foot floor plate is not made large unless it is placed on the side of the lumbar floor plate, the part of the supporting position becomes an obstacle and the inclination angle of the foot floor plate cannot be increased.

The present invention solves the above-mentioned conventional drawbacks and prevents the lower end of the foot floor plate, which is tilted downward, from touching the floor surface of a hospital room, etc., without increasing the height of the floor plate in a flat state. The purpose is to

The present invention will be described in detail below based on examples. Reference numeral 1 indicates a bed, and the bed 1 has a structure in which a back floor plate 2, a lumbar floor plate 3, and a foot floor plate 4 are supported on a base frame 5, which are connected to each other so as to be flexible.

Therefore, a pair of left and right first rotation support arms 6 are provided on the foot floor plate 4 side of the base frame 5, and a left and right pair of second rotation support arms 7 are provided on the back floor plate 2 side, The oribe of the first rotation support arm 6 is connected to the waist floor plate 3, and
Connecting an end of the second support arm 7 to the waist floor plate 3 on a side closer to the back floor plate 2 than the first support arm 6,
By rotating and raising the first and second support arms 6 and 7, the lumbar floor plate 3 can be raised freely in the direction toward the feet of the bed 1 and the like. The base frame 5 is provided with driving means D for driving the first or second rotary support arms 6, 7. For example, as shown in the figure, the driving means D connects a telescopic punch 9 that expands and contracts with the rotation of a motor 8 to a driving arm 11 protruding from a connecting punch 10' that connects the left and right first rotary support arms 6. A connected configuration. This pond driving means D may be a hydraulic cylinder or the like, and the member connecting it may also be the second rotation support arm 7. Further, in the present invention, the foot floor plate 4 is supported by a support member 12 provided on the foot side of the base frame 5 so as to be able to move and roll freely in the longitudinal direction of the bed 1, etc., and the back floor plate 2 is supported by the lumbar floor plate 3. It is supported by an elevating mechanism 13 that is movable with the movement of the lumbar floor plate 3 and can be bent upward before and after the movement, using the connection position with the waist floor plate 3 as a turning fulcrum. In the illustrated embodiment, the support member 12 is configured as a support roller that supports the foot floor plate 4, but other than that, although not shown, the support member 12 is provided under the foot floor plate 4. A support arm or the like may be configured to be freely connected to a moving member that is fixed to the side so as to be movable in the above direction. Further, the elevating mechanism for the back floor plate 2 allows the back floor plate 2 to move freely in accordance with the movement of the waist floor plate 3, and to bend upward using the connection position with the waist floor plate 3 as a fulcrum before and after movement. If it is a mechanism that can be freely moved, for example, as shown in FIG. 2a, a rotating arm 15 with a roller 14 that contacts and supports the lower side of the back floor plate 2, or as shown in FIG. 2b, the back An operating arm 136 protruding from the lower side of the floorboard 2 and a telescopic pestle 17 such as a gas spring connected between the waist floorboard 3 may be used as appropriate. To explain the operation of the present invention in such a configuration, when the telescopic punch 9 is extended by the operation of the motor 8 in the state shown in FIG. The left and right first support arms 6
rotate in the same direction, the lumbar floor plate 3 is raised toward the feet of the bed 1 etc. by the first rotation support arm 6 and the second rotation support arm 7.

When the lumbar floor plate 3 rises in the foot side direction, the part of the foot floor plate 4 connected to the lumbar floor plate 3 rises in the same direction, thereby tilting downward. Since the foot floor plate 4 is supported by the support member 12 so as to be movable and rotatable in the above-mentioned direction, no stress is caused to the mechanism. In addition, along with the movement of the waist floor plate 3, the back floor plate 2 also moves, and along with such movement, the elevating mechanism is operated, for example, the rotating arm 15 is rotated clockwise in the figure, or the telescopic pestle 17 is rotated. By stretching the back floor plate 2, the back floor plate 2 is bent upward using the connection position with the waist floor plate 3 as a fulcrum and tilted upward.
In conjunction with the downward slope of the foot floor plate 4 described above, the entire floor plate can be raised and lowered in the shape of a chair. In addition to being able to relax in this condition, the patient etc. can also use the legs 1 of the base frame 5.
The bed 1 etc. can also be used like a wheelchair by appropriately providing wheels 19 on the bed 8. As described above, the present invention raises the lumbar side of the foot floor board 4 when it is tilted downward, so that the end of the foot floor board 4 does not touch the floor of a hospital room or the like. The height of the floor plate in a planar state can be lowered by the amount of rise.

Being able to lower the height of the floorboard in a flat state is suitable for getting on and off a patient, making a bed, etc. In addition, since the foot floor plate 4 moves toward the foot side of the bed etc. as it rises, even if the position where the foot floor plate 4 is supported by the support member 12 etc. is at a position away from the position where it is connected to the waist floor plate 3, it will cause trouble. The angle can be increased, and the foot floor plate 4 can be stably supported by such a support position.

Furthermore, the back floor plate 2 does not move with the movement of the lumbar floor plate 3, thereby increasing the distance between the back floor plate 2 and the lumbar floor plate 3, or preventing the movement of the lumbar floor plate 3 from occurring. It can be tilted upward as well as downward to form a chair-like shape. Here, if the first rotational support arm 6 is configured to have a longer vertical movement stroke than the second rotational support arm 7 as shown in the figure, the lumbar floorboard 3 can be placed in the undulating state of the floorboard. The foot plate 4 can be tilted with the foot side facing upward, and the patient can be stably supported, and the foot floor plate 4 can be further raised due to the tilted slope. As mentioned above, the structure for lengthening the movement stroke may be a structure in which the length of the arm is lengthened as shown in the figure, or a structure in which the mounting path on the base frame 5 is made upward, as appropriate. As described above, in the present invention, the foot floor plate is tilted downward by the action of raising the lumbar floor plate in the direction toward the feet of the bed, etc., so that the foot floor plate is tilted downward and simultaneously lifted upward.
Therefore, without increasing the height of the floorboard in a flat state, it is possible to prevent the lower end of the foot floorboard, which is tilted downward, from getting stuck on the floor surface of a hospital room, etc., and as a result, the foot floorboard can be raised. Since the height of the floor plate in a flat state can be lowered in accordance with the amount, it has the effect of being suitable for getting on and off the patient, making the bed, etc.

Further, even when a large inclination angle is required, the foot floor plate can be supported at a position away from the connection position with the lumbar floor plate, which has the effect of stably supporting the foot floor plate.

In addition, the back floor plate does not move with the movement of the lumbar floor plate, causing inconveniences such as widening the distance from the lumbar floor plate or hindering the movement of the lumbar floor plate, and allows the lower leg floor plate to be mirrored. It can be tilted upwardly to form a chair-like shape, and in this way, the patient or the like can relax on a bed or the like, and has the advantage that such a bed or the like can also be used as a wheelchair.

[Brief Description of the Drawings] Figures 1a and b are explanatory front views showing the configuration and operation of essential parts of an embodiment of the present invention, and Figures 2a and b are the configuration and operation of the lifting mechanism for the back floor plate. It is an explanatory front view showing an example. Code 1...Bed, 2...Back floorboard, 3...
... Kuma floor board, 4 ... Foot floor board, 5 ...
...Base frame, 6...First rotation support arm, 7...
...Second rotation support arm, 8...Motor, 9
・・・・・・Stretch village, 10・・・Connection village, 11・
... Drive arm, 12 ... Support member, 13.
...Lifting mechanism, 14...Rofu, 15
...Rotating arm, 16... Actuation arm, 17...
...Telescopic pestle, 18...Legs, 19...
Wheel. Calculating turtle map 2nd figure

Claims (1)

[Scope of Claims] 1. In a bed or the like having a structure in which a back floor plate, a lumbar floor plate, and a foot floor plate are supported in a base frame, each of which is connected in a flexible manner, a pair of right and left first a pair of left and right second rotation support arms are provided on the side of the back floor plate, and the ends of the first rotation support arms are connected to the waist floor plate; The end of the second rotational support arm is connected to the lumbar floorboard on a side closer to the lumbar floorboard than the first rotational support arm, and the rotational rise of the first and second rotational support arms causes the above-mentioned The lumbar floor plate is freely raised in the direction toward the feet of the bed, etc., the base frame is provided with driving means for driving the first or second rotational support arm, and the foot floor plate is provided on the foot side of the base frame. The back floor plate is supported on a supporting member such as a bed so as to be movable and rotatable in the longitudinal direction, and the back floor plate is movable as the lumbar floor plate moves, and the lumbar floor plate is supported before and after the movement. What is claimed is: 1. A raising and lowering mechanism for a floorboard in a bed or the like, characterized in that the raising and lowering mechanism of a floorboard in a bed or the like is supported by a raising and lowering mechanism that can freely bend upwards using a connection position with a connecting position as a rotational fulcrum. 2. A floorboard in a bed or the like according to claim 1, wherein the first rotational support arm has a longer vertical movement stroke than the second rotational support arm. undulation mechanism