JPH0591648U - Bed slide mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a floor slide mechanism to which a normal back-raising mechanism can be applied. [Structure] An upper frame 23 on a lower frame 22 on a leg 21, and a floor 2 dividedly formed on the upper frame 23
Have four. Pulleys 27 are provided at the middle portion of the lower surface of the upper frame 23 and the end portion on the tip end side of the back-raising mechanism 25, and one end of the wire member 28 is attached to the lower frame 22 to act as a starting member from the pulley 27 at the intermediate portion of the lower surface of the upper frame 23. Working arm 26
It is bridged and fixed to the connecting portion with and is also bridged to the pulley 27 at the end portion on the starting member side to attach the terminal end to the lower frame 22. A known structure can be applied to the back raising mechanism 25. [Effect] Since a normal back-raising mechanism can be used, a new production line is not necessary, and an increase in product cost can be suppressed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slide mechanism for a floor portion of a bed.

[0002]

[Prior Art]

 In recent years, for the purpose of convenience and space saving, a bed with a normal back-raising mechanism can be operated even if the back is raised by performing a back-raising operation and sliding the entire floor toward the head side at the same time. As shown in FIG. 4, a retractable bed in which the position of the patient's head does not change much has been developed (see FIG. 5). In such a retractable bed 1, as shown in FIG. 6, a leg 2 is provided with a lower frame 3, an upper frame 5 is provided on the lower frame 3 via rollers 4, and a floor 6 is provided on the upper frame 5. It is a composition. As shown in FIG. 7, the back-raising mechanism 7 applied to the retractable bed 1 includes a screw shaft 9 connected to a drive motor 8, a starting member 11 having a female screw 10 built in at the tip of the screw shaft 9, and It has a structure in which a female screw 12 for sliding of the upper frame 5 is provided at an intermediate portion of the screw shaft 9.

[0003]

[Problems to be solved by the device]

 However, the back-raising mechanism as described above is different from the back-raising mechanism of the normal back-raising mechanism, and therefore, it has to be manufactured especially as a back-raising mechanism for a retractable bed, and a new production line is required. It is necessary to have equipment such as the above, and as a result, it becomes a factor of increasing the product price. The present invention has been made to solve such a problem, and an object of the present invention is to provide a bed slide mechanism for a bed to which a back raising mechanism of a normal back raising mechanism can be applied.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a leg with a lower frame, an upper frame on a lower frame, and a floor part formed separately on the upper frame, so that the floor part can be displaced up and down. The back raising mechanism of the upper frame is connected to the lower frame by attaching one end of the linear member to the lower frame, and at the bottom of the upper frame, a pulley is installed on the lower frame. It is characterized in that it is laid over the joint between the floor and the floor and fixed, and then laid over the undulating pulley on the floor side 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 the floor is connected to the floor. A pulley is provided in the middle of the lower surface of the upper frame, and one end of the linear member is attached to the lower frame, and the wire is bridged to the pulley in the middle of the lower surface of the upper frame, and the end is attached to the lower surface of the upper frame via a moving pulley to rotate the moving pulley. It is characterized in that the central part, the activating member and the connecting part 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]

[Action]

 When the back-raising mechanism is activated to raise the back, the screw shaft rotates and the activation member projects. Then, the floor part gets up due to the displacement of the operating arm. Here, since the connecting portion between the backrest mechanism and the floor portion is displaced so as to retract the linear member, the upper frame is retracted via the pulley and moves to the head side.

In addition, in the structure in which the moving pulley is provided, 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 pulley to cause the linear member to move. Through which the upper frame moves as the back is raised.

[0007]

[Embodiment] 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, by way of one 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 21, an upper frame 23 on the lower frame 22, and a floor 24 dividedly formed on the upper frame 23. The floor 24 is connected to the tip of the back raising mechanism 25 via an operating arm 26. Pulleys 27 are provided at the middle portion of the lower surface of the upper frame 23 and the end portion on the tip end side of the back-raising mechanism 25. One end of the wire member 28 is attached to the lower frame 22 so that the pulley 27 at the middle portion of the lower surface of the upper frame 23 is removed. It is constructed by bridging and fixing it on the connecting portion between the starting 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 structure. For example, as shown in FIG. 2, a screw shaft 30 connected to a drive motor 29 and a screw shaft 30 having a screw shaft 30 and a male screw 31 built therein. And a starting 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, the back is raised and the upper frame 23 moves with the ups and downs of the floor 24, so that the position of the patient's head can be prevented from shifting in the bed length direction. Further, since the back-raising mechanism 25 having a known structure can be applied, there is no need for capital investment such as newly setting a production line of a special back-raising mechanism for this bed.

Next, another embodiment of the sliding mechanism for the floor of the bed according to the present invention will be described. It should be noted that the substantially same components as those in the above-described embodiment are designated by the same reference numerals. That is, as shown in FIG. 3, in this embodiment, a pulley 27 is provided in the middle portion of the lower surface of the upper frame 23, and one end of the wire member 28 is attached to the lower frame 22 so that the pulley 27 in the middle portion of the lower surface of the upper frame 23 is attached. An end is attached to the lower surface of the upper frame 23 via the movable pulley 40, and the rotation center of the movable pulley 40 and the connecting portion of the starting pipe 32 and the operating arm 26 are connected by the interlocking member 41. .

Therefore, according to such a slide mechanism, when the coupling portion between the activation pipe 32 and the operation arm 26 is displaced by the activation of the back raising mechanism 25, the upper frame 23 is moved by the movement of the movable pulley 40. Since the upper frame 23 can be moved leftward in the figure when the user raises his back, the position of the patient's head can be prevented from shifting in the bed length direction. it can.

[0012]

[Effect of the device]

 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 of a main part showing an example of a bed having a floor slide mechanism according to the present invention.

2 is a schematic side view showing 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 view of a bed having a normal back raising mechanism.

FIG. 5 is a functional explanatory diagram of a bed having a back-up interlocking floor.

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

FIG. 7 is a perspective view of a main 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 starter 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 displacement of the floor portion is connected to the floor portion, and an upper portion is provided. Pulleys are provided on the lower surface of the frame on the intermediate portion and on 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 and fix,
A sliding mechanism for a floor portion of a bed, which is mounted on a pulley on the undulating floor portion and attached at an end to a lower frame. 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 to the pulley in the middle portion of the lower surface of the upper frame. A slide mechanism for a floor portion of a bed, wherein a connecting portion of the operating portion, the actuating member, and the connecting portion is connected so as to be interlocked. 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.