JPH0759245B2 - Safety mechanism in bed and its operation control method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a safety mechanism in a bed and the like, in which a floor undulating mechanism is emergency stopped and a reverse operation is performed when a child or the like is caught, and an operation control method thereof.

[0002]

2. Description of the Related Art In hospitals, so-called Gatch beds, which have undulating backs and legs, have already been widely used in hospital beds. Came. Furthermore, due to the shortage of nurses and caregivers in recent years, electrification is progressing in order to save labor. According to such a high-low gatch bed, there is an advantage that the patient can operate the floor undulating mechanism by himself to take a desired posture.

[0003]

However, when the floor is raised, a large space is generated between the lower surface of the floor and the frame, and there is a risk that an object or a child will enter.
Therefore, if the patient or caregiver operates the floor undulation mechanism without noticing it, it will be very dangerous and the mechanism will be damaged by overload, so it is necessary to take some safety measures. The present invention has been made to solve such a problem, and by the pressure-sensitive means,
An object of the present invention is to provide a safety mechanism for a bed or the like that automatically stops when a foreign object or a child is caught in it.

[0004]

In order to solve the above-mentioned problems, the present invention relates to a bed or the like having a floor undulating mechanism, and a pressure-sensitive means on the lower surface of the floor plate of the undulating floor , and this pressure-sensitive means. A pressure receiving member for transmitting a pressure when a foreign object is caught in the pressure sensing means, and the pressure sensing means is attached to a side edge of the floor plate
The pressure receiving member is a strip-shaped sheet that is designed to be
Mounted on the pressure-sensitive means at both edges of the floorboard.
When a foreign object is caught by the pressure receiving member,
Pressure fluctuations are detected by pressure sensitive means and
The force signal gives the impression that a foreign object is caught in the floor
And a control means for rotating the floor undulating mechanism in the reverse direction. Also, in the bed etc.
In the safety mechanism, on the lower surface of the undulating floor, the pressure receiving part
The pressure when a foreign material is caught by the material is transmitted to the pressure-sensitive means.
At the same time, the pressure-sensitive means catches the pressure fluctuations and pinches the foreign matter.
As a result, the floor undulation mechanism can be stopped and the floor undulation mechanism can be reversed to wake up the floor.

[0005]

[Function] When the floor is awake, foreign matter or a child enters the floor below and the operator operates the mechanism to lay down the floor without noticing it and the foreign matter comes into contact with the pressure receiving member. As a result, the pressure receiving member is pressed and deformed, and the deformation pressure is transmitted to the pressure sensing means. As a result, the pressure-sensitive means detects a foreign substance or a pressure fluctuation when a child is caught, and the floor undulating mechanism stops operating based on the signal, so that the floor stops. Then
Immediately after the floor portion stops, the floor undulation mechanism is reversely activated to wake up the floor portion, so that foreign matter and children can be easily eliminated.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A safety mechanism for a bed or the like according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a floor part 1 in a bed or the like, and the floor part 1 performs a hoisting operation by a floor part hoisting mechanism 2. That is, the floor plate 3 of the undulating floor portion 1
A pressure sensitive sensor 4 and a pressure receiving member 5 for transmitting a pressure when a foreign object is caught in the pressure sensitive sensor 4 are provided on the lower surface. The floor undulating mechanism 2 has a known configuration. Further, a control box 6 for supplying an operating signal and operating electric power to the floor undulating mechanism 2 and a remote operation means 7 are arranged, and a detection signal from the pressure sensitive sensor 4 is sent to a control circuit 8 in the control box 6. This is the configuration to be introduced.

The pressure sensitive sensor 4 is a strip-shaped sheet-like member which is attached to the side edge portion 9 of the floor plate 3, and a piezoelectric sensor can be applied (see FIGS. 2 and 3).

The pressure receiving member 5 is formed, for example, by injection molding, and is mounted on the pressure sensitive sensor 4 on both side edge portions 9 of the floor plate 3.

A well-known structure can be applied to the control circuit 8 in the control box 6, and it is assumed that a foreign matter is caught by the detection signal from the pressure-sensitive sensor 4, and the floor undulating mechanism 2 is used. It is configured to give a stop signal to.

Further, the control circuit 8 detects the trapping of a foreign matter to stop the floor undulating mechanism 2 and at the same time reversely operates the floor undulating mechanism 2 to wake up the floor 1. Is configured as follows.

The safety mechanism in the bed or the like according to the present invention is constructed as described above, and its operation will be described below. When the floor portion 1 is awake, foreign matter or a child enters under the floor portion 1, and if the operator operates the mechanism and falls down the floor portion 1 without noticing it, the foreign matter hits the pressure receiving member 5. The pressure receiving member 5 is pressed and deformed by contact, and the pressure sensitive sensor 4
Detects the pressure change, and the detection signal is transmitted to the control circuit 8 in the control box 6. Thereby, the control circuit 8 interrupts the operation of the floor undulating mechanism 2 when a foreign object or a child is caught, so that the floor undulating mechanism 2 does not become overloaded and the floor 1 stops. To do. Therefore, the floor 1 does not fall down any more, and foreign objects and children can be removed from the bottom of the floor 1 without difficulty.

Further, immediately after the floor 1 is stopped, the floor undulating mechanism 2 is reversely activated to wake up the floor 1 .
Thus, the foreign matter can be easily taken out, and the child can be rescued more safely without difficulty.

[0013]

As described above, according to the present invention, the operation of the floor portion can be promptly interrupted in an emergency or an emergency, and the floor undulating mechanism is reversely activated to wake up the floor portion again. Since the floor undulation mechanism does not become overloaded, foreign matter can be easily removed,
Even if a child is caught, it can be safely rescued from under the floor.

[0014]

[Brief description of drawings]

FIG. 1 is a systematic mechanism explanatory view showing an embodiment of a safety mechanism in a bed or the like according to the present invention.

FIG. 2 is an exploded perspective view illustrating a floor portion shown in FIG.

3 is a cross-sectional explanatory view of a main part of the floor plate shown in FIG.

[Explanation of symbols]

 1 floor 2 floor undulation mechanism 3 floor 4 pressure sensor 5 pressure receiving member 6 control box 7 remote control means 8 control circuit 9 side edge

Claims (2)

[Claims] 1. In a bed or the like having a floor undulating mechanism, a pressure-sensitive member is provided on the lower surface of the floor plate of the undulating floor, and a pressure-receiving member for transmitting a pressure when a foreign object is caught in the pressure-sensitive member. And the pressure-sensitive means is attached to the side edge of the floorboard.
Is a strip-shaped sheet, the pressure-receiving member,
Install on the pressure-sensitive means at both edges of the floorboard.
The pressure when a foreign object is caught by the pressure receiving member.
The fluctuation of the
The floor undulation mechanism is stopped by the
A safety mechanism in a bed or the like, which is equipped with a control means for reversely operating the floor undulating mechanism while stopping . 2. A safety mechanism for the bed or the like
The bottom surface of the undulating floor by a pressure
The pressure when it is caught is transmitted to the pressure-sensitive means,
Means captures the pressure fluctuation, as tucked foreign matter, to stop the floor undulations mechanism, base according to claim 1, characterized in that so as to reverse the operation of the floor undulations mechanism <br / > Operation control method of safety mechanism in a pad.