JPH074807Y2 - Body trapping prevention mechanism for beds with floor undulation mechanism - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a bed provided with a floor undulating mechanism for preventing accidents such as the hand of a sleeping person or foreign matter being caught between the floor and the main frame. The present invention relates to a body trapping prevention mechanism in a bed provided with an undulating mechanism.

[0002]

2. Description of the Related Art At present, hospital beds that have a floor undulating mechanism and a floor lifting mechanism have already been widely adopted. There are electrically operated floor undulations and floor elevating mechanisms, and this electrically operated bed can easily operate the floor with operation buttons. It can be said that it will become an indispensable facility.

[0003]

However, when operating an electric bed, it is necessary to pay attention to the safety confirmation of the surroundings when operating the bed. For example, when the floor is in a raised state, a large space is created between the bottom surface of the floor and the main frame. There is a possibility that an operation may occur without noticing that there is such a state, and an accident may occur in which a foreign matter or a patient's limb is caught. The present invention has been made from such a point of view, and a screen is stretched between the lower surface of the floor and the main frame, and the limbs of the patient and the body in a bed equipped with a floor undulation mechanism that prevents the intrusion of foreign matter. An object is to provide a trapping prevention mechanism.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a bed having a floor undulating mechanism for performing a undulating motion of the floor between the undulating floor and the main frame. The feature is that the screen is stretched freely. In the above configuration, the base is fixed to the main frame, the movable guide is rotatably attached to the base, and the surface where the base and the movable guide engage is formed into a curved shape. At the same time, a rough surface is formed on one of the surfaces so that the screen passes through the engaging surface between the base and the movable guide, and the screen is slid in one direction by pressing from the outside. The movement can be constrained by rotating the movable guide portion and pressing it against the base portion side through the rough surface portion.

[0005]

[Function] When the floor is raised, the floor separates from the main frame. Then, the screen is stretched between the main frame and the floor portion following the wake-up of the floor portion.
As a result, on the space opening surface between the main frame and the floor,
It is possible to prevent the patient's limbs and foreign objects from entering. Even when the floor portion is laid down, the screen is in a stretched state following the movement of the floor portion, so that the screen is not caught between the main frame and the floor portion.
In a state where the floor portion is raised, when the limbs hit the screen in the space opening surface between the main frame and the floor portion so as to push the screen, the screen is pulled, and the engagement surface between the base portion and the movable guide portion, Although the screen tends to slide, the movable guide portion rotates and presses against the base side through the rough surface, so that the screen is restrained and the limbs can be prevented from being pushed in.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a body pinching prevention mechanism in a bed having a floor undulating mechanism according to the present invention will be described below with reference to the accompanying drawings. The bed 1 is shown in FIG. This bed 1 is provided with a floor undulating mechanism (not shown), and is a body pinch prevention mechanism 2
Is provided. That is, the body pinch prevention mechanism 2 includes the back floor 3 which is undulating, and the screen 6 which covers the opening surface of the space 5 that is formed between the main frame 4 and the back floor 3 side.

The screen 6 is a fan-shaped sheet, and one end of the screen 6 is attached to a side end portion of the back floor 3 which is located directly above the main frame 4. Then, the other end side is attached to the tension spring 8 attached to the opposing main frame 4 by pulling it inside the main frame 4 via the guide roller 7 provided on the main frame 4, and elastically stretched. The screen 6 stretched between the main frame 4 on the other side and the back floor 3 is stretched over a guide roller 7 installed in the main frame 4,
The tension spring 8 allows elastic support between the tension spring 8 and the opposing main frame 4 (see FIG. 2).

In the body pinch prevention mechanism 2 constructed as described above, when the floor undulation mechanism is operated to raise the back floor 5, the back floor 3 separates from the main frame 4. Then, the screen 6 follows the rising of the back floor 3 and resists the elastic force of the tension spring 8 and is pulled out. As a result, the screen 6 is stretched on the opening surface of the space 5 between the main frame 4 and the back floor 3 on the side surface of the back floor 3 so that the patient's limbs and foreign matter are kept in the space between the main frame 4 and the back floor 3. It can be prevented from entering the part 5 (see FIG. 3).
reference). In addition, even when the back floor 3 is laid down, the screen 6
Since the elastic force of the tension spring 8 always applies a tension so as to pull it in one direction, the screen 6 is not caught between the main frame 4 and the back floor 3.

The body pinching prevention mechanism 2 has been described above based on the embodiment, but instead of the guide roller 7, the screen 6 is guided and the screen 6 has a function of locking the sliding in one direction. The guide stop mechanism 10 can be applied. That is, as shown in FIG. 4, the guide stop mechanism 10 has a base portion 11 fixedly mounted on the main frame 4, and a movable guide portion 12 engaged with the base portion 11 and rotatably attached. It is a thing. The base portion 11 and the movable guide portion 12 have engaging surfaces 13 and 14 formed in a curved surface shape, and are engaged with each other via the engaging surfaces 13 and 14. That is, the engaging surface 13 on the base 11 side is a convex surface, while the engaging surface 14 on the movable guide 12 side is a base 11.
It is a concave surface corresponding to the side engagement surface 13. A rough surface portion 15 is formed on the engaging surface 14 on the movable guide portion 12 side. The screen 6 is slidably sandwiched between the engaging surfaces 13 and 14, the engaging surfaces 13 and 14 are used as guide surfaces, and the movable guide portion 12 slides the screen 6 in one direction. It can be configured to rotate and press-contact with the base portion 11 side via the rough surface portion 15 so as to be restrained.

When such a guide stop mechanism 10 is applied to the body pinching prevention mechanism 2, the screen 6 follows the ups and downs of the back floor 3 during normal operation, and the screen 6 is engaged with the engaging surface 14 of the base 11 and the movable guide 12. The screen 6 is stretched on the opening surface of the space 5 between the main frame 4 and the back floor 3 (see FIG. 5). When the back 3 is raised and the patient's limb pushes the screen 6 against the screen 6 in the opening surface of the space 5 between the main frame 4 and the back 3, sudden force is applied to the screen 6. The engaging surfaces 13, 1 of the base 11 and the movable guide 12 are engaged.
4, the screen 6 slides to rotate the movable guide portion 12, so that the screen 6 is moved to the base portion 11 via the rough surface portion 15.
The screen 6 is pressed against the side, the screen 6 is restrained, the limbs can be prevented from being pushed in, and the safety is high (see FIG. 6).

[0011]

As described above, according to the present invention, since the screen is stretched between the floor and the main frame so as to follow the movement of the floor, it is possible to prevent the limbs from being caught during sleep. Moreover, since the force that pushes it into the screen is applied to suppress the sudden movement of the screen in one direction, it is possible to avoid an unexpected accident and provide a bed with excellent safety. it can.

[0012]

[Brief description of drawings]

FIG. 1 is a partially omitted external perspective view showing an embodiment in which a body pinch prevention mechanism according to the present invention is applied to a bed.

FIG. 2 is a cross-sectional explanatory view of the bed shown in FIG.

FIG. 3 is an operation explanatory view of a body-trapping prevention mechanism according to the present invention.

FIG. 4 is a side view of a guide stop mechanism applied to the body-trapping prevention mechanism according to the present invention.

5 is an explanatory view of the action of the guide stop mechanism shown in FIG.

FIG. 6 is an explanatory view of the operation of the guide stop mechanism shown in FIG.

[Explanation of symbols]

 1 Bed 2 Body Entrapment Prevention Mechanism 3 Back Floor 4 Main Frame 5 Space 6 Screen 7 Guide Roller 8 Tension Spring 10 Guide Stop Mechanism 11 Base 12 Movable Guide 13, 13 Engaging Surface 15 Rough Surface

Claims (2)

[Scope of utility model registration request] 1. A bed having a floor undulating mechanism, wherein a screen is stretched between the undulating floor and the main frame so as to follow the undulating motion of the floor. Body trapping prevention mechanism in a bed equipped with an undulating mechanism. 2. A surface on which a base portion is fixedly mounted on the main frame according to claim 1, the movable guide portion is rotatably attached to the base portion, and the base portion and the movable guide portion are engaged with each other. With a curved surface, a rough surface portion is formed on either one of the surfaces so that the screen passes through the engaging surface between the base portion and the movable guide portion, and the screen is pressed by an external side to the screen. The body is prevented from being caught in a bed equipped with a floor undulating mechanism, characterized in that the sliding movement in one direction is constrained by rotating the movable guide section and pressing it against the base side through the rough surface section. mechanism.