JPH06210075A - Stage set hanging mechanism - Google Patents

Abstract

PURPOSE:To stably and movably hang and support stage set by a method wherein winches that are rotatable on vertical shafts are mounted on a stationary frame, and sheaves that correspond to the winches and are movable in the widthwise direction of a stage are attached to movable beams so that the sheaves are movable in the widthwise direction of the stage and rotatable on the vertical shafts. CONSTITUTION:A stationary frame 2 is installed above a stage, and two or more winches 3 that are rotatable within a horizontal plane are mounted on the stationary frame 2. Movable beams 4 are guided by the stationary frame 2 to allow them to move in the widthwise direction of the stage and each have a sheave 5 which winds up a wire 9 unwound from the winch 3 and is movable in the depth-wise direction of the stage and rotatable within a horizontal plane, to liftably hang and support stage set such as a set scene by the wire 9 hanging down from the sheave 5. Hanging points can be easily set at optimal positions by shifting the movable beams 4 and the sheaves 5, so that stage settings can stably be supported even if they are large or have special shapes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stage apparatus, and more particularly to a stage hanging mechanism for suspending and supporting various kinds of tools on the stage so as to be able to move up and down.

[0002]

2. Description of the Related Art As is well known, a sludge-shaped frame commonly referred to as a grape rack is provided above a general stage,
From there, various tools, such as curtains, screens, luminaires, writing slots, etc., are suspended and supported. Then, tools that need to be exchanged or raised / lowered for each performance are suspended via a baton, and the baton is raised / lowered to appropriately raise / lower.

[0003]

By the way, since the conventional general baton is a straight and long rod-shaped one, it is most suitable for suspending thin flat-shaped ones such as curtains, screens and signboards. However, it is difficult to balance the front and back and stably support the curtains and the specially-shaped curtains that are curved or thick in the front-back direction of the stage, and the large tools are difficult to support. It may not be possible to hang it. In addition, the baton does not move forward and backward or left and right only by moving up and down, and therefore it is not convenient to move the tools supported by the baton forward and backward and left and right. .

The present invention has been made in view of the above circumstances, and it is possible to stably suspend and support even a special shape or a large size one, and various suspending-supported tools may be provided as needed. The purpose is to provide an effective stage suspension mechanism that can be moved in the front-back and left-right directions.

[0005]

SUMMARY OF THE INVENTION The present invention is a stage lifting mechanism for suspending and supporting various tools on a stage so that the tools can be raised and lowered, and a fixed frame is installed above the stage. A plurality of winches is rotatably provided on the fixed frame in a horizontal plane about a vertical axis, and a plurality of movable beams extending in the front-rear direction of the stage are movable inside the fixed frame in the width direction of the stage. Each of the movable beams is provided with a sheave that rotates about a horizontal rotation axis corresponding to each winch, and the sheave is movable in the front-rear direction of the stage and rotates in the horizontal plane about the vertical axis. No, it is possible to wind the wire fed out from each winch around the corresponding sheave and hang it downward, and position the sheave as the hanging point. Converting mechanism for supporting hanging various utensils by wire, and characterized by being configured so as to change the position of the hanging point by moving each movable beam and the sheaves.

[0006]

In the hanging mechanism of the present invention, various tools are hung and supported by a winch so that they can be lifted and lowered. However, the wire fed from the winch is wound around a sheave (pulley) and then hung so that the hanging point can be changed. Set the position to the sheave position. And the size and shape of the tools to be hung,
The winch to be used is selected according to the hanging position, and the sheave corresponding to the selected winch is moved in the width direction and the front-back direction of the stage to set the hanging point to the optimum position. Moreover, not only can the tools that are suspended and supported be moved up and down, but they can also be moved in any direction as needed. That is, while lifting and lowering the tools suspended by the winch winding and unwinding operations, the sheaves are moved in the same direction by moving the sheave along the movable beam in the front-back direction of the stage, and further, By moving the movable beam in the width direction of the stage with respect to the fixed frame, the sheave and the tools suspended and supported from the sheave are moved in the same direction.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a schematic configuration of a stage hanging mechanism 1 of this embodiment, and FIG. 2 is a front view of a stage on which the hanging mechanism 1 is installed. The hanging mechanism 1 is installed above the stage to hang and support tools such as curtains and slits, and has a fixed frame 2, a winch 3, a movable beam 4, and a sheave 5 as main constituent elements. It is configured.

First, as shown in FIG. 1, the fixed frame 2 includes five long parallel side members 6 extending in the width direction of the stage and extending in the front-rear direction of the stage at both ends thereof. It is assembled in a rectangular frame shape by a total of eight short side members 7 each of which is four. As the long side member 6 and the short side member 7, steel materials such as I type steel and C type channel are used. This fixed frame 2 is provided in place of a conventional grape shelf that is installed above the stage.
As shown in FIG. 2, both ends are fixed to the body and fixedly installed in a form suspended from the ceiling surface of the stage by columns.

As shown in FIG. 1, the fixed frame 2 has a plurality of winches 3 (a total of 22 units, 11 units on each side in this embodiment) on both sides thereof, supported by the short side member 7. In addition to being installed, a plurality of movable beams 4 (in the present embodiment, a total of 24 units including 22 units, which is equal to the number of winches 3 and two units in reserve in the present embodiment) move in the width direction of the stage. A sheave 5 is mounted on each of the movable beams 4 so as to be movable in the front-rear direction of the stage.

The winch 3 is, as shown in FIGS.
An electric type having a base 8, a drum 10 for winding the wire 9, and a drive motor 11 for rotating the drum 10. The base 8 has a vertical shaft 12 with respect to the short side member 7. The winch 3 is rotated about the vertical axis 12 in the horizontal plane by being attached via the, and its direction can be freely changed. Drum 1
As shown in FIG. 2, a hook 13 for locking various tools is provided at the tip of the wire 9 wound around 0. Further, reference numeral 14 in FIGS. 3 to 5 is a stopper for preventing the winch 3 from falling off, and 15 is a fastening bolt for restraining the rotation of the winch 3 and fixing it to the fixed frame 2 as necessary. Is.

On the other hand, the movable beam 4 has a movable beam 4 shown in FIGS.
As shown in FIG. 3, the wheel 16 is supported by two long side members 6 and 6 of the fixed frame 2 which are adjacent to each other via wheels 16 provided at both ends thereof. By rolling, the long side members 6 and 6 can freely move in the stage width direction using the guide rails as guide rails.
The movable beam 4 is moved by a worker who rides on the fixed frame 2 and manually pushes and pulls it in the width direction of the stage. ) 17 is laid at an appropriate position. Reference numeral 18 is the movable beam 4
A stopper 19 for preventing the movable beam 4 from falling off, and a fastening bolt 19 for restraining the movement of the movable beam 4 and fixing it to the fixed frame 2.

Further, the sheave 5 is also shown in FIGS.
As shown in FIG. 7, the wire 9 is rotated in the vertical plane about the rotary shaft 20, and the wires 9 fed from the corresponding winches 3 are wound from above and suspended downward. It is supposed to support. These sheaves 5 are mounted on the movable beam 4 via a vertical shaft 21 and a slide member 22, and the slide member 22 moves along the movable beam 4 to move the sheave 5 in the front-back direction of the stage and at the same time. 5 itself is a vertical axis 21
It can rotate freely in the horizontal plane around the and its direction can change freely. Reference numeral 23 is a stopper for preventing the sheave 5 from falling off, 24 is a fastening bolt for restraining the rotation of the sheave 5 in the horizontal plane and fixing its direction, and 25 is for restraining the movement of the sheave 5. A fastening bolt for fixing the slide member 22 to the movable beam 4.

In the stage-hanging mechanism 1 having the above-mentioned structure, various tools, for example, a writing slot 30 as shown in FIG.
It is supported by the wire 9 via the hook 13 so as to be able to move up and down. However, it is selected which winch 3 to use according to the size and shape of the tools to be hung, and the hanging position. Moreover, by moving the sheave 5 corresponding to the winch 3 to a desired position, the suspension point is set to an optimum position so as to stably support the special shape or large size in a well-balanced manner. I will get it.

That is, as described above, the worker rides on the fixed frame 2 to push and pull the movable beam 4 in the width direction of the stage by manual operation, and moves the sheave 5 along the movable beam 4 before and after the stage. By pushing and pulling in the direction to move the sheave 5, it is possible to move the sheave 5 both in the width direction of the stage and in the front-back direction, and therefore, the suspension point of the sheave 5 can be set to the optimum position. However, the movable range of the sheave 5 in the stage width direction is such that another movable beam 4 on which the sheave 5 is mounted is adjacent to another movable beam 4.
Since the movable range of the sheave 5 in the front-back direction of the stage is restricted within the range of the entire length of the movable beam 4, the winch 3 and the sheave 5 are also selected in consideration of that point. There is a need.

When the sheave 5 is moved as described above, the sheave 5 itself and the winch 3 corresponding to the sheave 5 are automatically moved by the tension force of the wire 9 accordingly.
Therefore, there is a concern that they may rotate around 1 and 12, respectively, and their directions may change, which may hinder the wire 9 from being drawn or wound by the drum 10, or the wire 9 may drop from the sheave 5. There is no. When the position of the sheave 5, that is, the suspension point is set to the optimum position, the movable beam 4 is fixed to the fixed frame 2 by the fastening bolt 19, and the slide member 22 is fixed to the movable beam 4 by the fastening bolt 25. Further, if the rotation of the sheave 5 and the rotation of the winch 3 are restrained by the fastening bolts 24 and 15, it is possible to prevent the suspension point from being inadvertently moved. Further, it is of course possible not only to use the suspension point fixed, but also to move the suspended tools by moving the suspension point if necessary.

In the above embodiment, the movable beam 4 is moved with respect to the fixed frame 2 and the sheave 5 is moved with respect to the movable beam 4 by an operator, but the driving for moving them is performed. It is also possible to provide a mechanism so as to move mechanically and automatically by remote control. Further, the dimensions and forms of the fixed frame 2 and the movable beam 4, the number of winches 3, the movable beams 4, and the sheaves 5 installed can be appropriately changed according to the scale of the stage and the like. It is also possible to make a change such that a plurality of sheaves 5 are mounted on the winch 3 or the winch 3 is installed not only on both sides of the stage but also in the front or rear of the stage.

[0017]

As described above, according to the present invention, a plurality of winches are rotatably provided around a vertical axis on a fixed frame provided above the stage, and sheaves corresponding to the winches are provided in the stage width. In addition to being attached to a movable beam that can move in any direction, the sheaves can be moved in the fore-and-aft direction of the stage and can be rotated around a vertical axis. By moving the movable beam and the sheave, the suspension point can be easily set to the optimum position.Therefore, special shapes or large objects that were difficult to support stably with conventional batons were used. Even in such a case, it has an excellent effect that it can be stably supported and that the suspended tools can be moved if necessary. Also, as the sheave moves, the sheave itself and the winch naturally rotate in the horizontal plane due to the tension of the wire and their orientation changes, which may interfere with the feeding and winding of the wire or the wire may fall off the sheave. It has excellent safety and reliability without any concern that it will occur.

[Brief description of drawings]

FIG. 1 is a plan view showing a schematic configuration of a hanging mechanism that is an embodiment of the present invention.

FIG. 2 is a front view of a stage equipped with the hanging mechanism.

FIG. 3 is an enlarged plan view showing a set of winch and sheave in the hanging mechanism.

FIG. 4 is a front view of a winch in the hanging mechanism.

FIG. 5 is a side view of the winch.

FIG. 6 is a front view of a sheave in the hanging mechanism.

FIG. 7 is a side view of the sheave.

[Explanation of symbols]

 1 Stage suspension mechanism 2 Fixed frame 3 Winch 4 Movable beam 5 Sheave 9 Wire 12 Vertical axis 20 Rotation axis 21 Vertical axis 22 Slide member 30 Writing (tools).

Claims (1)

[Claims] 1. A stage suspension mechanism for suspending and supporting various tools on a stage so as to be able to move up and down, wherein a fixed frame is installed above the stage, and a plurality of winches are provided on the fixed frame. Each of the movable beams is rotatably provided in a horizontal plane about a vertical axis, and a plurality of movable beams extending in the front-rear direction of the stage are attached to the inside of the fixed frame so as to be movable in the stage width direction. In addition, a sheave that rotates about a horizontal rotation axis is provided corresponding to each winch, and the sheave is movable in the front-rear direction of the stage and rotatable in the horizontal plane about the vertical axis, and is extended from each winch. Each wire is wound around the corresponding sheave and hung downward. The stage-hanging mechanism, which is configured to change the position of a hanging point by moving and moving each movable beam and each sheave while supporting the hanging.