JPS6022841Y2 - Bed back plate frame operation device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bed back frame operating device, and in particular, in order to enable remote control of a trigger lever of a gas spring that drives the back frame of a bed mat stand up and down.
The present invention relates to a bed back frame operating device in which a trigger lever operating lever handle is provided near the handle of the back frame.

Beds are known in which the back plate frame of the bed is raised and lowered using a hydraulic piston-cylinder device generally referred to as a gas spring.

As shown in FIG. 1, this type of conventional bed has a bed back frame 1 that can be raised and lowered around a hinge. is operated by the driving force of the gas spring 3 that transmits the
A handle 4 is attached to the back plate frame 1.

However, in this conventional bed back frame operating device, the operating lever 5 that operates the trigger lever that opens the valve of the gas spring 3 is located under the gas spring 3 under the bed.
Since it is provided at the trigger lever of the bed, when pulling up the back frame 1 of the bed, you have to put one hand on the operating lever 5 and pull up the handle 4 of the back frame 1 with the other hand. However, because of this, it was difficult for the person operating the device to use his or her strength, and there were times when it was impossible to operate it by a person.

Therefore, the purpose of this invention is to provide a bed back frame operation that allows the handle of the back frame of the bed and the gas spring operating lever handle to be placed in close proximity to each other so that the up and down of the bed back frame can be easily operated with one hand. The goal is to provide equipment.

Therefore, the back plate frame operating device according to the present invention, which is distantly related to the above object, has a handle for pulling up the back plate frame attached to at least one side end of the back plate frame, and an operating lever handle near the handle. The mechanism is characterized in that the movement of the operating lever handle is transmitted to the trigger lever of the gas spring via the operating wire.

An embodiment of the bed back plate frame operating device according to the present invention will be described below with reference to the drawings.

In FIG. 2, the bed, which is designated as a whole by the reference numeral 10, has leg bars 11, 11 and a rectangular frame 12 horizontally installed between them.
One end of the back plate frame 13 is pivoted by a hinge 14.14.

As is clear from FIG. 3, this back plate frame 13 is driven by a gas spring 15.
The driving force of 5 is transmitted to the back plate frame 13 via a link mechanism 16.

The ring mechanism 16 includes a torque rod 17 that is rotatably supported across the back plate frame 13, and a torque rod 17 that is rotatably supported across the back plate frame 13.
7, and a link 19 that connects the other end of this arm 18 and the back plate frame 13 with a pin.
One end of a bracket arm 20 is fixed to the center of the torque rod 17.

The other end of this bracket arm 20 is a gas spring 15
are joined at one end.

This gas spring 15, as shown in FIG.
The inside of the cylinder body 21 is divided into a high pressure gas chamber 23 and an oil chamber 24 by a free piston 22, and a piston body 25 is installed in the oil chamber 24.
A piston rod 26 extends outward from one side of the piston body 25.

A passage 27 is formed in the piston body 25 and communicates between the oil chambers 24A and 24B at the front and rear of the piston body 25, and a valve 28 is installed on the passage 27.

This valve 28 is opened and closed by a bushing rod 29 passing through the piston rod 26.

This bushing rod 29 is connected to the valve 2 in the protruding position.
8 and put the gas spring 15 in a locked state,
When the bushing rod 29 is pushed in, the valve 28 is opened to communicate the oil chambers 24A and 24B via the passage 27, allowing the piston body 25 to move.

This operation of pushing the bushing rod 29 is remotely related to the trigger lever 30.

Furthermore, the trigger lever 30 is moved by pulling the operating wire 31, which is pulled by lifting the operating lever handle 32 shown in FIG. 6, as will be explained in detail below.

This operating lever handle 32 is located at a position below the handle 33 attached to one end or both ends of the back frame 13 of the bed away from the hinge 14 via a bearing fitting 34 and close to the handle. It is attached parallel to this handle.

Further, the upper end of an operating lever 35 is fixed to the tip of the operating lever handle 32, one end of an operating shaft 36 is fixed to the lower end of this operating lever 35, and the other end of this operating shaft 36 is supported by a pivot. ing.

Furthermore, a hook 37 is fixed on the shaft of the operating shaft 36, and one end of the operating wire 31 is hooked onto this hook 37.

Since the present invention is constructed in this way, when raising the back,
When you put your hand on the handle 33 and simultaneously pull up the operating lever handle 32 in the direction of arrow A, the operating lever 35 is swung around the bearing fitting 34 in the direction of arrow B, and the hook 37 is attached to the operating wire 31. is pulled in the direction of arrow C.

Then, the other end of the operating wire 31 pulls the trigger lever 30 in the direction of the arrow, pushes the head of the bushing rod 29 of the gas spring 15, opens the valve 28, and drives the gas spring 15.

As a result, one end of the cylinder body 21 rotates the bracket arm 20 and the arm 18 around the torque rod 17, and applies a force to raise the back plate frame 13 about the hinge 14 via the link 19. .

The above operations can be fully performed with one hand.

It is sufficient to release the operating lever handle 32 when the back plate frame 13 reaches a predetermined inclined position, and the trigger lever 30
The force of the spring returns to the position shown in FIG. 5, and the bushing rod 29 is pushed out to close the valve 28 again.

As a result, the movement of the piston body 25 is stopped and the gas spring 13 is in a locked state.

Note that the operating lever handle 32 and handle 33 attached to the back plate frame 13 may be attached to both sides of the back plate frame 13, and in this case, the raising and lowering operation can be performed from either side of the bed, which is more convenient. is good.

As is clear from the above description, according to the present invention, the trigger lever for opening and closing the valve of the gas spring can be opened and closed by remote control when the handle of the back plate frame and the operating lever handle of the gas spring are located close to each other. Because of this, you can easily raise and lower the back frame of the bed with one hand.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a conventional back plate frame operating device together with the bed, Fig. 2 is a side view showing an embodiment of the back plate frame operating device according to the present invention together with the bed, and Fig. 3 is a side view showing the back plate frame operating device according to the present invention. Fig. 4 is a longitudinal sectional view showing an embodiment of the gas spring, Fig. 5 is a side view showing the trigger lever of the gas spring, and Fig. 6 is a perspective view showing the handle of the back plate frame and the gas spring. FIG. 3 is a perspective view showing a spring operating lever mechanism. 10...Bed, 11...Leg bar, 12
...Body frame, 13...Back plate frame, 14.
...Hinge, 15...Gas spring,
16... Link mechanism, 17... Torque rod, 18... Arm, 19... Link, 20... Bracket arm, 21...・・・
... Cylinder body, 23 ... High pressure gas chamber, 2
4...Oil chamber, 25...Zeston body, 26
-------- Piston rod, 27... passage,
29...Fush rod, 3o...Trigger lever 131...Operation wire, 32...Opening operation lever handle, 33...Handle.

Claims (1)

[Scope of utility model registration request] In a device in which the driving force of a gas spring is transmitted to the back plate frame of the bed via a link mechanism to give an up-and-down motion to the back plate frame of the bed, at least one side end of the back plate frame is provided with a back plate. In addition to attaching a handle for pulling up the plate frame, an operating lever handle is installed below the handle in a location close to the handle in parallel with the handle, and the movement of the operating lever handle is controlled by a gas spring via an operating wire. 1. A bed backboard frame operating device, characterized in that the transmission is transmitted to a trigger lever of the bed.