JPH09308547A - Interlocking control method of the floor of a bed - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] When performing a combination of back-raising and knee-raising (leg-raising), the operation pattern is changed in order to suppress pressure and displacement when raising the back. SOLUTION: When the floor 1 is raised from the flat state to the angle of the back floor 1a from 0 ° to 45 °, the leg raising mechanism is simultaneously operated to connect the knee floor 1c and the leg floor 1d. To prevent the user's body from slipping,
To wake up from the angle of 45 ° to the maximum wake-up angle, the leg raising mechanism is operated in reverse to lower the connecting point between the knee floor 1c and the leg floor 1d to reduce the pressure on the user's body. To do.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a floor undulating mechanism such as a bed, in which a back raising operation and a knee raising (leg raising) operation are combined and adjusted in order to suppress pressure and displacement when raising the back. The present invention relates to an interlocking control method of a floor portion of a bed or the like that is performed.

[0002]

2. Description of the Related Art Conventionally, floor undulation mechanisms have already been widely used in beds and the like. The floor undulating mechanism includes, for example, a back raising mechanism and a knee raising mechanism (leg raising mechanism), and in addition, a floor raising / lowering mechanism for vertically moving the entire floor is also used. By the way, the back-raising mechanism and the knee-raising mechanism have conventionally been operated in various ways, and these operations are performed in terms of time and operation angle (the undulation angle of the floor corresponding to the back, the floor corresponding to the knee or leg). It is as shown in FIG. 5 to FIG. 7 when shown in the graph of the relationship with the undulation angle). First, in the operation pattern shown in FIG. 5, the back-raising mechanism and the knee-raising mechanism are simultaneously activated to wake up at a constant rate. Further, in the operation pattern shown in FIG. 6, the knee raising mechanism is first activated to raise the floor corresponding to the knee or leg, and then the back raising mechanism is activated to raise the floor corresponding to the back. . When the floor corresponding to the back rises to an angle, the knee raising mechanism is activated in reverse to lower the floor corresponding to the knee or leg. this is,
This is because the angle between the floor corresponding to the back and the floor corresponding to the knee is not more than a certain angle and the user is not pressed. Further, in the operation pattern shown in FIG. 7, the rising angle of the floor corresponding to the knee or leg is suppressed to some extent, and the floor corresponding to the back is raised at a constant rate.

[0003]

However, since these motion patterns are only uniform motion patterns on the mechanism side, depending on the body of the user, pressure or displacement may occur from the floor. There is. For example, like the operation pattern shown in FIG. 5, the floor corresponding to the back,
When an operation is performed such that the floor corresponding to the knee continues to rise at the same time, the waist and the lower abdomen peripheral space become narrower, so that the lower back and the lower abdomen are compressed. On the other hand, when the back is raised with the knee raised as in the motion pattern shown in FIG. 6, if the floor corresponding to the back rises and the angle with the floor corresponding to the knee falls below a certain angle, Although the floor corresponding to the knees is lowered, the floor corresponding to the knees must be raised above a certain angle before raising the floor corresponding to the back in this way. As the part goes up, the body is pushed by the floor, and the body is displaced to the leg side. The present invention has been proposed from such a background, and in a bed or the like provided with a floor undulating mechanism, when the back raising and the knee raising (leg raising) are operated in combination, the pressure and displacement at the time of raising the back are prevented. An object of the present invention is to provide a linked control method for a floor portion of a bed or the like, which is performed by changing an operation pattern in order to suppress the movement.

[0004]

In order to solve the above-mentioned problems, the present invention wakes up a floor corresponding to the back up to a predetermined angle in a bed or the like having a back raising mechanism and a leg raising mechanism for the floor. At the same time, by activating the leg raising mechanism to raise the legs, displacement of the body with respect to the floor is suppressed, and when the floor corresponding to the back is raised from the predetermined angle to the maximum wake-up angle, the legs are supported. The pressure on the body from the floor can be suppressed by returning the floor to the flat side. Further, according to the present invention, when the floor corresponding to the back is raised to the predetermined angle, the leg raising mechanism can be operated so that the rising angle of the floor corresponding to the leg reaches the vicinity of the limit angle.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Next, regarding a floor interlocking control method for a bed or the like according to the present invention, one example of a bed for carrying out the floor interlocking control method will be given and based on the accompanying drawings. This will be described below. The floor portion 1 in the bed shown in FIG. 1 includes a back floor 1a corresponding to the back and a waist floor 1 corresponding to the waist.
b, a knee floor 1c corresponding to the knee, and a leg floor 1d corresponding to the leg portion, and they are sequentially connected so as to be bendable.
An electric back raising mechanism (not shown) is motively connected to the back floor 1a. The waist floor 1b is fixed to a bed frame (not shown). Then, the connecting portion between the knee floor 1c and the leg floor 1d is dynamically connected to the leg raising mechanism (knee raising mechanism). The back-raising mechanism and the leg-raising mechanism are electrically operated, and are mounted on the bed frame by operating a hand switch provided on the floor,
Power supply is controlled via a control box equipped with a control circuit, and the back floor 1a, knee floor 1c, and leg floor 1d are undulated. The back-raising mechanism, the leg-raising mechanism, the control box, and the control circuit described above may have known configurations, and their illustration and description will be omitted here.

The operation control procedure of the back-raising mechanism and the leg-raising mechanism set in the control circuit of the control box in the bed will be described below. That is, first, (1) from the flat state of the floor 1, to the back floor 1
When the angle of a is raised from 0 ° to 45 °, for example, the leg lifting mechanism is also operated at the same time to move the knee floor 1c and the leg floor 1d.
The purpose is to raise the connection point with and to prevent the user's body from shifting (see FIG. 2). Next, (2) when the angle of the back floor 1a is raised from 45 ° to the maximum wake-up angle, the leg raising mechanism is operated in reverse to move the knee floor 1c and the leg floor 1a.
The connection point with d is lowered. This aims to reduce pressure on the user's body (see FIG. 3).

When the angle of the back bed 1a is raised from 0 ° to 45 °, the leg raising mechanism is largely operated to raise the joint between the knee floor 1c and the leg floor 1d close to the limit. There is. Then, when the angle of the back floor 1a is raised from 45 ° to the maximum rising angle, the leg raising mechanism is operated in reverse to lower the connecting portion between the knee floor 1c and the leg floor 1d. The angle formed by the knee floor 1c and the knee floor 1c gradually expands, and the pressure on the user's body from the floor 1 can be reduced. The above-described control operation of the floor portion 1 can be shown as a graph of the relationship between time and angle as shown in FIG.

[0008]

As described above, according to the present invention, since the floor corresponding to the back is flat from the flat state to the initial predetermined angle, the legs are raised at the same time, and the leg is largely moved close to the limit. It is possible to suppress the deviation. In addition, when the floor corresponding to the back is raised to the limit, the floor corresponding to the knees and legs is lowered so that the user's body is placed on the floor corresponding to the back and the floor corresponding to the knee. Depending on the department
It is possible to suppress pressure on the lower back and the lower abdomen, and it is possible to provide a comfortable bed that is easier to use.

[0009]

[Brief description of drawings]

FIG. 1 is a schematic side view showing an example of a floor portion for carrying out the interlocking control method for raising the back and legs of the floor portion according to the present invention.

FIG. 2 is a schematic side view for explaining a floor portion interlocking control method for a bed or the like according to the present invention, in which the floor portion is in an operating state.

FIG. 3 is a schematic side view for explaining the floor interlocking control method for a bed or the like according to the present invention, which is a schematic side view of the floor in an operating state.

FIG. 4 is a graph showing the relationship between the undulating angle of the floor and the time provided for explaining the interlocking control method of the floor in the bed according to the present invention.

FIG. 5 is a graph showing the relationship between time and the undulation angle of the floor for showing an example of the operation of the existing floor undulation mechanism.

FIG. 6 is a graph showing the relationship between time and the undulation angle of the floor, for showing another example of the operation of the existing floor undulation mechanism.

FIG. 7 is a graph showing the relationship between time and the undulation angle of the floor, for showing another example of the operation of the existing floor undulation mechanism.

[Explanation of symbols]

 1 floor 1a back floor 1b waist floor 1c knee floor 1d leg floor

Claims (2)

[Claims] 1. In a bed or the like having a back raising mechanism and a leg raising mechanism for the floor portion, the floor portion corresponding to the back is raised to a predetermined angle, and the leg raising mechanism is activated to raise the floor. By suppressing the displacement of the body with respect to the part, when the floor corresponding to the back is raised from the predetermined angle to the maximum wake-up angle, by returning the floor corresponding to the legs to the flat side, from the floor A method for controlling the interlocking of a floor in a bed or the like, which is characterized by suppressing pressure on the body. 2. When the floor corresponding to the back is raised up to the predetermined angle, the leg raising mechanism is operated so that the rising angle of the floor corresponding to the leg reaches the vicinity of the limit angle. Item 2. An interlocking control method for a floor of a bed or the like according to Item 1.