JPH0623288Y2 - Bed slide mechanism in bed - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding mechanism for a floor of a bed.

[0002]

2. Description of the Related Art In recent years, for the purpose of ease of use and space saving, the operation of raising the back is performed, and at the same time, the entire floor is slid toward the head side. Retractable beds have been developed (see FIG. 5) such that the position of the patient's head does not change much, such as a mechanical bed (see FIG. 4). As shown in FIG. 6, such a retractable bed 1 has a configuration in which a lower frame 3 is provided on a leg portion 2, an upper frame 5 is provided on the lower frame 3 via rollers 4, and a floor portion 6 is provided on the upper frame 5. It is a thing. As the back raising mechanism 7 applied in the retractable bed 1, as shown in FIG.
A screw shaft 9 connected to the drive motor 8 as shown in FIG.
And a starting member 11 having a female screw 10 built in at the tip of the screw shaft 9, and an upper frame 5 at the intermediate portion of the screw shaft 9.
It is configured to have the female screw 12 for sliding.

[0003]

However, the above-described back-raising mechanism is different from the usual back-raising mechanism of the back-raising mechanism, and for this reason, it is manufactured as a back-raising mechanism especially for a retractable bed. It is necessary to install new production lines and the like, which results in an increase in product price. The present invention has been made to solve such a problem, and an object of the present invention is to provide a slide mechanism for a floor portion in a bed to which a back raising mechanism of a normal back raising mechanism can be applied.

[0004]

In order to solve the above-mentioned problems, the present invention provides a leg with a lower frame, an upper frame on the lower frame, and a floor formed separately on the upper frame. A back-raising mechanism for undulating and displacing the floor is connected to the lower frame of the upper frame, and a pulley is provided on the lower surface of the upper frame at the intermediate portion and the floor portion side to be undulated. It is characterized in that the pulley is bridged from the pulley in the middle to the connecting portion between the back-raising mechanism and the floor to be fixed, and is bridged to the pulley on the floor side where it is undulated, and the end is attached to the lower frame. In addition, the present invention provides a leg with a lower frame, an upper frame on the lower frame, and a floor formed separately on the upper frame, and a back raising mechanism for undulating and displacing the floor is connected to the floor. A pulley is provided in the middle of the lower surface of the upper frame, one end of the linear member is attached to the lower frame, and the wire is bridged over the pulley in the middle of the lower surface of the upper frame. It is characterized in that the central portion, the activation member and the connecting portion of the actuating arm are connected so as to be interlockable. In the above-mentioned configuration, it is possible to apply, to the back-raising mechanism, a configuration including a screw shaft connected to a drive motor and a starting member having a female screw built in at the tip of the screw shaft.

[0005]

When the back raising mechanism is started to raise the back, the screw shaft rotates and the starting member projects. Then, the floor part gets up due to the displacement of the operating arm. Here, since the connecting portion between the back raising mechanism and the floor portion is displaced so as to pull in the linear member, the upper frame is pulled in via the pulley and moves to the head side.

Further, in the structure provided with the moving pulley, when the connection portion between the back raising mechanism and the floor portion is displaced by the activation of the back raising mechanism, the upper frame is moved by the movement of the moving pulley to cause the linear member to move. Through which the upper frame moves as the back is raised.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a slide mechanism for a floor portion of a bed according to the present invention will be described below with reference to the accompanying drawings, with reference to an embodiment. FIG. 1 shows a floor slide mechanism according to the present invention. This bed 20 is provided with a lower frame 22 on a leg portion 21, an upper frame 23 on the lower frame 22, and a floor portion 24 formed separately on the upper frame 23. The floor 24 has an operating arm 26 at the tip of the back raising mechanism 25.
Are connected via. Pulleys 27 are provided at the middle portion of the lower surface of the upper frame 23 and the end portion of the back raising mechanism 25. One end of the wire member 28 is attached to the lower frame 22 to start from the pulley 27 at the intermediate portion of the lower surface of the upper frame 23. It is constructed by bridging and fixing it on the connecting portion between the member and the operating arm 26, and by bridging it on the pulley 27 at the end portion on the starting member side and attaching the terminal end to the lower frame 22.

The back-raising mechanism 25 may have a known construction. For example, as shown in FIG. 2, a screw shaft 30 connected to a drive motor 29 and a starter having a female screw 31 built into the tip of the screw shaft 30 are started. And a pipe 32.

According to the slide mechanism as described above, when the back raising mechanism 25 is activated to raise the back, the screw shaft 30 rotates and the activation pipe 32 projects. Then,
The floor portion 24 gets up due to the displacement of the operating arm 26. Here, since the connecting portion between the activation pipe 32 and the operating arm 26 is displaced leftward in the drawing so as to pull in the wire member 28, the upper frame 23 is pulled in via the pulley 27 and moves. In this way, as the back is raised and the upper frame 23 moves with the ups and downs of the floor 24,
It is possible to prevent the position of the patient's head from shifting in the bed length direction. Further, since the back-raising mechanism 25 having a known structure can be applied, facility investment such as newly setting a production line of a special back-raising mechanism for this bed is unnecessary.

Next, another embodiment of the sliding mechanism for the floor of the bed according to the present invention will be described. The same reference numerals are given to the substantially same components as those in the above-described embodiment. That is, as shown in FIG. 3, in this embodiment, the pulley 27 is provided in the middle portion of the lower surface of the upper frame 23 and the wire member 2 is attached to the lower frame 22.
8 is attached to one end of the upper frame 23 and bridged over a pulley 27 in the middle of the lower surface of the upper frame 23, and a terminating end is attached to the lower surface of the upper frame 23 via a moving pulley 40. And the connecting portion with the connecting member is connected by the interlocking member 41.

Therefore, according to such a slide mechanism, when the connecting portion between the activation pipe 32 and the operating arm 26 is displaced by the activation of the back raising mechanism 25, the upper frame 23
Is pulled through the wire member 28 by the movement of the movable pulley 40, and as a result, the upper frame 2
Since 3 can be moved to the left in the figure, the position of the patient's head can be prevented from shifting in the bed length direction.

[0012]

As described above, according to the present invention, since the normal back-raising mechanism can be used as it is, it is not necessary to newly provide a production line, and the cost increase of the product can be suppressed.

[0013]

[Brief description of drawings]

FIG. 1 is a side view showing the main part of an example of a bed having a floor slide mechanism according to the present invention.

2 is a schematic side view of a back raising mechanism applied to the bed shown in FIG. 1. FIG.

FIG. 3 is a side view showing the main part of another example of a bed having a floor slide mechanism according to the present invention.

FIG. 4 is a functional explanatory diagram of a bed having a normal back raising mechanism.

FIG. 5 is a functional explanatory view of a bed having a back raising interlocking floor.

FIG. 6 is a side view illustrating an example of the bed shown in FIG.

FIG. 7 is a perspective view of an essential part of a back raising mechanism applied to the bed shown in FIG.

[Explanation of symbols]

 20 bed 21 leg 22 lower frame 23 upper frame 24 floor 25 back raising mechanism 26 actuating arm 27 pulley 28 wire member 29 drive motor 30 screw shaft 31 female screw 32 starting pipe 40 moving pulley 41 interlocking member

Claims (3)

[Scope of utility model registration request] 1. A leg is provided with a lower frame, an upper frame is provided on the lower frame, and a floor portion formed separately on the upper frame is provided, and a back raising mechanism for undulating and displacing the floor portion is connected to the floor portion. Pulleys are provided on the lower surface of the frame on the intermediate portion and the undulating floor side, and one end of the linear member is attached to the lower frame to hang the pulley from the intermediate portion on the lower surface of the upper frame to the connecting portion between the back raising mechanism and the floor portion. Pass it and fix it,
A sliding mechanism for a floor portion of a bed, characterized in that the end portion is attached to a lower frame by straddling a pulley on the undulating floor portion side. 2. A leg is provided with a lower frame, an upper frame is provided on the lower frame, and a floor portion formed separately on the upper frame is provided, and a back raising mechanism for undulating and displacing the floor portion is connected to the floor portion. A pulley is provided in the middle portion of the lower surface of the frame, one end of the linear member is attached to the lower frame, and the wire is bridged over the pulley of the middle portion of the lower surface of the upper frame. A sliding mechanism for a floor in a bed, characterized in that a connecting part of the operating part, the actuating member and the actuating arm is interlockingly connected. 3. The bed according to claim 1, further comprising a screw shaft connected to a drive motor, and a starting member having a female screw built in at a tip of the screw shaft. Floor slide mechanism.