JPS5810595Y2 - Lifting mechanism for the back floorboard of the bed - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a novel mechanism for raising and lowering the back floorboard of a bed.

A detailed explanation will be given below based on an example.

The symbol A generally indicates the floorboard of the bed 1, and the floorboard A
The bed 1 is divided into a plurality of parts in the longitudinal direction, and each adjacent part is connected in a flexible manner.

In the embodiment shown in the figure, the floorboard A includes a back floorboard 2 and a waist floorboard 3.
Although the foot floor plate 4 is divided into three parts, it may be divided into four parts as is well known, and the number of divisions is arbitrary.

The floorboard A having the above configuration is installed so as to be movable along the longitudinal direction of the floorboard support frame 5.

Among the floorboards A, the floorboard adjacent to the back floorboard 2, that is, the lumbar floorboard 3 in the embodiment, is used as the drive floorboard, and the lower side thereof and the head side of the floorboard support frame 5 are provided with a plurality of sections facing each other. 1 and a second support arm 6, 7 are rotatably provided with two protrusions, and the distal ends of the support arms 6, 7 are connected to each other, and the first or second support arm 6, 7 is In the example, the second support arm 7 is provided with a support roller 8 for supporting the back floor plate 2.

In this configuration, the driving floorboard, that is, the waist floorboard 3 is driven by an appropriate mechanism to move the floorboard support frame 5 in the headward direction,
That is, when moving to the left in the figure, the first support arm 6 also moves in the same direction, so the connecting portion of the first and second support arms 6 and 7 rotates upward, and the support roller 8 also rotates. Move up and raise the back floor plate 2, using the connecting part with the waist floor plate 3 as a fulcrum.

In this way, the present invention can raise the back of the patient 9 who is lying on the floorboard A, but at this time, the back floorboard 2 is rotated and raised, and at the same time its fulcrum is moved toward the head of the bed 1. Because of the movement, the amount of movement of the upper body of the patient, etc. 9 before and after the back raising operation is small.

This amount of movement can be adjusted by adjusting the lengths of the first and second support arms 6, 7, etc., and appropriately changing the rate of rotational increase relative to the movement of the fulcrum of the back floor plate 2. It is also possible to make the upper body hardly move when raising the back.

Therefore, when the present invention is applied to the bed 1, even when the patient's back is raised, the upper body of the patient, etc. 9 does not move away from the headrest 10 placed near the head side of the bed 1, so the patient, etc. 9, even in a supine position, Furthermore, even when the user is in an upright position due to back raising, the bed headrest 10 can be used in a comfortable position at all times.

The drive mechanism shown in the figure for driving the drive floor plate 3 is located between the drive frame 11 configured on the lower side of the drive floor plate 3 and the head side (or foot side) of the floor support frame 5. A configuration in which a telescoping rod 12 using a screwing mechanism of female and male threads is fixed, and the telescoping rod 12 is expanded and contracted by a motor 13 or the like installed in the drive frame 11 to move the driving floor plate 3 in the reciprocating direction. However, any other known mechanism may be used as the drive mechanism.

As described above, the present invention has a major feature in that the amount of movement of the upper body of the patient when raising the patient's back is small, so the headrest placed near the head of the bed can be used in a comfortable posture at all times. In addition, since the load-supporting position of the back floor plate is located away from the fulcrum, the load applied to the first and second support arms as well as the force applied to the back floor plate from the support rollers are small. In addition, the fulcrum of such a back floor plate moves as described above when the back is raised, even though the load supporting position of the back floor plate is far from the fulcrum. , the ratio of the tilting stroke of the back floor plate to the lifting stroke of the support roller is not reduced.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention, and FIG. 1a shows an embodiment of the present invention. b is a front view and a plan view, respectively, and FIG. 2 a + b is a front view for explaining the operation. Code 1...Bed, 2...Back floorboard, 3
...Waist floor plate (driving floor board), 4...Foot floor plate, 5...Floor plate support frame, 6,7...
- 11th second support arm, 8... support roller,
9...patient, etc., 10...bedhead, 11
... Drive frame, 12 ... Telescopic rod, 13
...Motor 0

Claims (1)

[Scope of utility model registration request] The bed is divided into a plurality of pieces in the longitudinal direction, and each of the adjacent pieces is connected in a flexible manner, and the floor plate is movable along the longitudinal direction of the floor plate support frame. A floor plate to be used as a driving floor plate is provided with first and second support arms rotatably protruding from the lower side thereof and the head side of the floor plate support frame in opposing directions, and the distal ends of these support arms are mutually connected. At the same time, the first or second support arm is provided with a support roller that supports the back floor plate, and the drive floor plate is driven by an appropriate mechanism to move in the head side direction of the floor plate support frame. A mechanism for raising and lowering a floor plate in a bed, characterized in that the back floor plate is rotated and raised by raising a support roller.