JPH0338365Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a device for raising and lowering a stage simply and manually.

(Problem that the invention aims to solve) Traditionally, it has been suitable for stages to be able to be raised and lowered so that they can be stored when not in use. They were folding it up and raising it up.

However, the use of hydraulic cylinders has the drawbacks of high equipment costs and troublesome maintenance. Furthermore, when pulling the vehicle with a wire, the structure is complicated and the wire must be pulled with considerable force, making it difficult for women and elderly people to operate the vehicle.

Therefore, the present invention provides a stage raising/lowering device that requires no maintenance and can be easily operated even by women and the elderly.

(Means for solving the problem) Therefore, the present invention is a stage that can be raised and rotated using the proximal end as a fulcrum, and can be used in a lying position and stored in an upright position. A plurality of stay dampers enclosed in cylinders are rotatably connected to the fixed side and the stage side in the backstage area to support the stage, and some of the stay dampers in the stay damper group have one end It is connected to the stage side and the other end is connected to the fixed side to constantly load the stage and support the upright state, and one end of the stay damper is connected to the stage side or fixed side, and the other end is connected to the stage side or fixed side. The connecting pieces attached to the stage are connected in a no-load state, and each connecting piece is arranged so as to be connected under load to the other end of the stay damper connected to it at a position corresponding to the inclination angle of the stage, and the rotation fulcrum of the stay damper group is is located inside and below the stage's lodging rotation fulcrum.

(Function) Some stay dampers support the upright state of the stage, and also adjust the position according to the inclination angle of the stage, e.g.
At each position of 30 degrees, 45 degrees, 60 degrees, 75 degrees, and 88 degrees, other stay dampers are activated by receiving the stage load sequentially by the connected pieces, and as the stage's inclination angle increases, This increases the number of stay dampers supported.

As a result, when knocking down a standing stage,
All you have to do is pull it forward with a light force, and even if the stage collapses, the other stay dampers will operate in sequence depending on the angle of collapse, either stopping the stage from collapsing or allowing it to rotate very slowly. Therefore, the stage can be easily and safely installed by simply applying a slight force in the direction of collapse, and the stage can be gently lowered.

Furthermore, if it is desired to stop the stage from collapsing midway, it is sufficient to simply release the force or energize it in the upright direction, and the stage will stop at that point or at the tilt angle at which a new stay damper is activated.

In addition, when the stage is to be stored upright, it is only necessary to slightly lift the open side of the stage that has fallen down and bias it in the upright direction, and the stage can be easily raised up by the restoring force of each stay damper. At this time, the initial lifting of the stage can be done with just a small amount of force.

(Example) Hereinafter, details of the present invention will be explained with reference to illustrated embodiments.

FIG. 1 shows the stage K standing up and stored in the wall recess, and FIG. 2 shows the stage K lying down and ready for use.

There are a total of 28 stay dampers S shown in Figures 1 and 3.The stay dampers are made by sealing high-pressure gas in a cylinder and are used to open and close the trunk door of a car. It is something that exists.

The stay damper S each connects the end of the rod SA,
A pin 4 is rotatably connected to a mounting piece 3 that is fitted and fixed inward to a fixed shaft 2 that serves as a rotational fulcrum of the stage, and the end of each cylinder Sb is connected to the stage K.
The pins 5 are connected to the angles 1 fixed to the back of the screen or to the connecting pieces 6, 7, 8, and 9 fixed between the angles 1, and are provided in parallel in the backstage area.

That is, as shown in FIG.
They are combined to form a set, and one stay damper S is arranged between the stay dampers S in the set as shown in FIG. As shown in FIG. 3A, each stay damper S is provided with 10 stay dampers S as shown in FIG. The end portions of the cylinders Sb are connected to pins 5 through long holes 6a, 7a, 8a, and 9a of connecting pieces 6, 7, 8, and 9, respectively. Among them, the stay dampers S at positions B, C, , D, and E shown in FIG. 1 are respectively B, C, D, and
As shown in E, there are 4 or 6 pieces connected to connecting pieces each having a different elongated hole length.

Next, the operation of this example will be explained.

When the stage K is in the upright state in Fig. 5, the stage K is supported by the action of the ten stay dampers S at the A position.
From this state, all you have to do is pull the stage K toward you, and the stage K
The load exceeds the supporting force of the 10 stay dampers S, and the stage K is rotated to fall while contracting the rods Sa of the 10 stay dampers S. During this lodging rotation,
Each stay damper S rotates around a pin 4 located inside and below the shaft 2 as a fulcrum, and thus rotates non-concentrically with the fulcrum shaft 2 of the stage K. Therefore, when stage K rotates 20 degrees to position B in FIG.
is moved. Therefore, the four stay dampers S connected to the connecting piece 6 receive the load of the stage K for the first time. For this reason, four stay dampers S are newly activated at position B to support and stop the stage K which is about to fall.

Next, if you pull the stage K further by hand, the load of the stage K will be applied to the 14 stay dampers S that support it.
By winning, the stage K further rotates while contracting the rod sa of the 14 stay dampers S. When the pin 5 is rotated 45 degrees to the C position in Fig. 5, the stay damper S rotates until the pin 5
Since the stage K is moved, the four stay dampers S connected thereto receive the load of the stage K for the first time. For this reason, four stay dampers S are newly activated at position C to support and stop the rotating stage K.

In this way, at 60 degrees at position D and at position E in Figure 5,
Similarly, when the connecting pieces 8 and 88 are turned upside down,
The six and four stay dampers S connected to stage 9 are newly activated to support and stop the rotating stage K. Finally, with all the stay dampers S activated in position E, the stage K should be lightly pushed down to make it contact the floor.

In this way, according to this example, the other stay dampers are sequentially operated in accordance with the predetermined inclination angle of the stage K to support the stage K, so that the stage K is controlled by stopping the incline or by rotating it in an extremely slow incline. I will do it. Therefore, by simply urging the stage K in the direction of collapse with a lighter force, the stage K can be gently lowered and installed easily and safely.

Furthermore, if it is desired to stop the stage K midway through the folding and rotation, it is sufficient to simply release the force or push it up slightly in the upright direction, and the stage K will stop at that point.

In addition, when the stage K is to be stored upright, it is only necessary to slightly lift the open side of the stage K which has fallen down and bias it in the direction of standing up, and the restoring force of each stay damper S will easily raise the stage. At this time, the initial lifting of the stage can be performed sufficiently with a weak force by applying the initial restoring force of the stay damper S at the E position in FIG. Also, depending on the upright position, the pin 5 returns from the elongated hole of each connecting piece to the rod.
B, C, E from holding Sa in a stretched state
Since the four stay dampers S at the position D or the six stay dampers S at the D position are deactivated, the stage K can be raised and rotated slowly, which is safe.

Furthermore, if only a large number of stay dampers were installed to operate at the same time, a considerable amount of force would be required to lower the stage, and the stage would suddenly raise and lower, which could be dangerous.
It was not possible to hire him.

Although this example is configured as described above, the present invention is not limited thereto. For example, the angle at which the other stay dampers are newly operated does not matter, and the number thereof may be appropriate depending on the size of the stage.

Furthermore, a structure in which the stay damper is operated according to the inclination angle of the stage is also available.Instead of the connecting piece of this example, a connecting piece with a long hole 10a of a certain length made transparent as shown in FIGS. 6 and 7 is also available. In addition to the piece 10, the length of contact with the pin 12 may be determined by adjusting the forward and backward movement of the stopper bolt 11. Alternatively, as shown in FIG. 8, a connecting piece 16 in which elongated holes 16a of different lengths are arranged in parallel is fixed to the stage side, and a pin 16b protruding from the end of the stay damper S is engaged with the elongated hole 16a. A different configuration is also possible. Further, as shown in FIG. 9, a link piece 14 is connected with a pin to a bracket 13 fixed on the stage side, and one end of a stay damper S is connected with a pin to the other end of the link piece 14, so that as the stage is lowered and rotated, the link piece 14 is connected with a pin. 14 moves upward and stopper bolt 1
The structure may be such that the stay damper S receives the load of the stage for the first time when it is in contact with the stage.

In addition, as shown in FIG. 10, a means for biasing the stage in the upright direction by attaching a torsion spring 17 to a shaft serving as a rotational fulcrum of the stage may also be used.

Further, the configuration of the stay damper is not limited either.

(Effect of the invention) Therefore, according to the present invention, when a stage is in an upright state, when it is to be brought down, it is only necessary to pull it forward with a light force, and even if the stage falls down, other stay dampers will be moved through the connecting pieces depending on the angle of collapse. Since the stage operates sequentially to stop the collapse or rotate to collapse very slowly, the stage can be easily and safely installed simply by applying a light force in the direction of collapse, which is very effective. The stage can be raised and stored using force, requires almost no maintenance, and can be easily operated even by women.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing an embodiment of the present invention;
Figure 2 is a front view of the stage when it is in use with the stage folded down, Figure 3 is a longitudinal side view of the main parts, Figure A is a diagram with one end of the stay damper connected to the angle, and Figures B to E are each connected. 4 is an enlarged front view showing the connection part of the stay damper, FIG. 5 is a schematic operation diagram showing its operation, and FIG. 6 is a side view of another main part of the means for operating the stay damper. , 7th
The figure is a longitudinal sectional front view of FIG. 6, FIG. 8 is a front view of the main part in the upright state using the connection piece of another example, FIG. 9 is a side view of the main part of the other example of the means for operating the stay damper, FIG. 10 is a front view of the main parts in a state where the stage is biased in the upright direction. K: stage, S: stay damper, Sa: rod,
Sb: cylinder, 1: angle, 2: shaft,
3: Mounting piece, 4, 5: Pin, 6, 7, 8, 9, 1
0, 16: Connection piece, 6a, 7a, 8a, 9a, 1
0a, 16a: long hole, 11, 15: stopper bolt, 14: link piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A stage that can be raised and rotated using the proximal end as a fulcrum, and can be used in the lying position and stored in the upright position, and has high pressure gas sealed in the cylinder. A stage is supported by rotatably connecting a plurality of stay dampers to a fixed side and a stage side in a backstage part, and some of the stay dampers in the stay damper group have one end connected to the stage side. Also, the other end is connected to the fixed side to constantly load the stage and support the upright state, and one end is connected to the stage side or fixed side, and the other end of the stay damper is attached to the stage side or fixed side. At the same time, each connecting piece is connected to the other end of the stay damper connected to it under load at a position corresponding to the stage's inclination angle, and the rotation fulcrum of the stay damper group is connected to the stage's inclination angle in a no-load state. This labor-saving raising/lowering device for a stage is located inside and below a dynamic fulcrum, and operates when other stay dampers sequentially receive the stage load for the first time according to the stage's tilting angle. (2) The labor-saving raising and lowering device for a stage according to claim 1, in which the other end of another stay damper is connected with a pin through a long hole of a connecting piece fixed to the stage side or fixed side. (3) A labor-saving raising and lowering device for a stage as set forth in claim 1 of the utility model registration claim, in which the other end of another stay damper is connected by a pin to one end of a link connecting piece rotatably attached to the stage side or fixed side. .