JPH077700U - Lifting device for stage hangings - Google Patents

Abstract

(57) [Abstract] [Purpose] Providing a compact and space-saving lifting device for lifting equipment [Structure] A plurality of hanging wires 2 for hanging a hanging object 1 for a stage are respectively placed on a side of a stage through pulleys 3. And connect to the counterweight 5. Both ends of the wire rope 6 wound around the upper friction pulley 7 and the lower guide pulley 8 are connected to the counterweight 5. A means 9 for rotationally driving the friction pulley 7 is provided near the ceiling, and the rotational driving means 9 is remotely operated by operating mechanisms 10 and 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a lifting device for hanging objects used on the stage.

[0002]

[Prior art]

 As a lifting device for suspended objects used on the stage, in Kaikaihei No. 37823, a plurality of suspending wires for suspending the suspended objects are guided sideways from the ceiling part of the stage through pulleys, and the ends of each wire are connected. There has been proposed a device in which the same counterweight is suspended to balance with the suspended object, and the suspended object is moved up and down by moving the counterweight up and down by using power.

A wire rope wound around upper and lower pulleys is connected to the counterweight, and an intermediate portion of the wire rope is wound around a drum connected to a winch. Then, when the winch rotates the drum, the wire rope drives the counterweight up and down according to the rotating direction.

[0004]

[Challenges of device]

 In the case of this elevating device, the intermediate portion of the wire rope is wound around the drive drum, so an intermediate gallery is required to support the drive drum at an appropriate height. For this reason, if a large number of lifting devices are to be provided, it is necessary to provide as many intermediate galleries as the number of lifting devices, and the space occupied by the intermediate galleries will increase accordingly. Therefore, not only did the intermediate gallery reduce the available space on the side of the stage, but the space on the side of the stage was not wide enough to install the desired number of lifting devices.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a compact and space-saving lifting device.

[0006]

[Means for achieving the object]

 The present invention guides a plurality of hanging wires hanging stage hangings to the side of the stage via pulleys, connects them to a counterweight, and connects both ends of a wire rope wound around upper and lower pulleys to this counter. A device for lifting and lowering a stage hanging object which is connected to a weight and drives the hanging object up and down by rotating the wire rope. A means for rotating and driving a pulley arranged near the upper pulley around which the wire rope is wound. And an operation mechanism for remotely operating the rotation drive means.

[0007]

[Action]

 When the rotary drive means rotationally drives the upper pulley, the wire rope rotates to move the counterweight up and down, and the suspension wire connected to the counterweight raises and lowers the suspended object.

The rotary drive means does not occupy the floor space on the side of the stage and can be operated from any position by the remote control mechanism.

[0009]

【Example】

 1 and 2 show an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a baton as a suspended object, which is suspended from above the stage by a plurality of suspension wires 2.

Each of these suspension wires 2 is guided substantially horizontally to the side of the stage via a pulley 3 provided at a position above the stage which is not visible to the spectators, and a plurality of pulleys 4 provided at coaxial positions direct the suspension wires 2 in the direction. After turning downward, it is connected to one counterweight 5. That is, the baton 1 is suspended at one end of the suspension wire 2 and the counterweight 5 is suspended at the other end thereof.

The counterweight 5 is connected to both ends of a wire rope 6 wound around an upper friction pulley 7 and a lower guide pulley 8.

The friction pulley 7 is rotatably driven by a winch 9 with a speed change mechanism, which is supported by a ceiling or a wall surface on the side of the stage. The start and stop of the winch 9, the rotation direction and the rotation speed are operated by a current signal output from the controller 11 according to the operation of the joystick 10 shown in FIG.

The guide pulley 8 is elastically supported on the floor surface on the side of the stage via a spring 12, and maintains the tension of the wire rope 6 at a predetermined level.

The winch 9 constitutes a rotation driving means of the friction pulley 7, and the joystick 10 and the controller 11 constitute a winch operation mechanism.

Next, the operation will be described.

When the winch 9 is operated remotely by operating the joystick 10 and the friction pulley 7 is rotationally driven counterclockwise in FIG. 1, the wire rope 6 is rotated in the same direction, and the counterweight 5 is pulled up.

As a result, the suspension wire 2 connected to the counterweight 5 is sent out by the weight of the baton 1 to lower the baton 1.

On the other hand, when the winch 9 is rotated in the opposite direction, the wire rope 6 rotates clockwise in FIG. 1 to pull down the counterweight 5. As a result, the baton 1 is pulled up via the suspension wire 2.

The raising and lowering speeds of the baton 1 can be arbitrarily changed by changing the rotation speed of the winch 9 by operating the joystick 10.

In both upward and downward movements, the tension of the wire rope 6 is maintained at an appropriate level by the spring 12 supporting the lower guide pulley 8, so that the upper friction pulley 7 and the wire rope 6 are Does not slip.

Further, since the winch 9 is supported by the ceiling or wall surface above, and only the lower guide pulley 8 is disposed on the floor side of the stage side, the space on the side of the stage is provided with the lifting device. Therefore, it is not narrowed down, and even if a plurality of lifting devices are arranged, the area occupied by the floor can be kept small.

Further, the operation mechanism including the joystick 10 and the controller 11 can be arranged at any place and can be moved as needed.

The above-described lifting device can also be realized by adding a winch 9, a joystick 10 and a controller 11 to an existing lifting device that manually rotates the wire rope 6.

[0025]

[Effect of device]

 As described above, the present invention is provided with means arranged near the ceiling for rotating and driving the upper pulley around which the wire rope is wound, and a mechanism for remotely controlling this, so that the floor space on the side of the stage rotates. It is not occupied by the driving means, and the lifting / lowering operation can be performed from any place.

Therefore, it is possible to install many lifting devices in a narrow space.

[Brief description of drawings]

FIG. 1 is a schematic side view of a lifting device according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of an operating mechanism.

[Explanation of symbols]

 1 baton 2 suspension wire 3,7,8 pulley 5 counterweight 6 wire rope 9 winch 10 joystick 11 controller

Claims (1)

[Scope of utility model registration request] 1. A plurality of suspension wires for suspending stage hangings are respectively guided to the side of the stage via pulleys to be connected to a counterweight, and both ends of a wire rope wound around upper and lower pulleys are connected to each other. Connect to the counter weight,
In a stage hanging apparatus for vertically moving the hanging object by rotating the wire rope, a means for rotatingly driving a pulley arranged near an upper pulley around which the wire rope is wound, and a rotary driving means. An apparatus for raising and lowering stage hangings, comprising an operating mechanism for remotely operating the means.