KR20150050157A

KR20150050157A - Apparatus for driving stage curtain

Info

Publication number: KR20150050157A
Application number: KR1020130131618A
Authority: KR
Inventors: 남동철
Original assignee: 남동철
Priority date: 2013-10-31
Filing date: 2013-10-31
Publication date: 2015-05-08

Abstract

The present invention relates to a stage curtain driving device in which a stage curtain opening and closing wire is wound around a drum 24 connected to a driving shaft portion 22a of a deceleration motor 22 and the wire is cut to form first and second wires 10 And the end portions of the first and second wires 10 and 12 are separately fixed to the drum 24 and are wound in the opposite directions to each other and then are wound around the curtain rails 2 and 4, As the drum rotates clockwise or counterclockwise due to the connection with the two stage curtains (6) and (8), the phenomenon of the walking of the wire or the winding of the drum by the drum is rarely occurred regardless of the season or aging, The opening and closing of the curtain is easy, precise and complete, and the opening and closing operation of the stage curtain becomes possible even with a relatively low motor output capacity.

Description

[0001] APPARATUS FOR DRIVING STAGE CURTAIN [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stage curtain apparatus, and more particularly, to a stage curtain driving apparatus that drives a stage curtain so that the opening and closing of a stage curtain which is driven by electric power is easy, accurate and intact.

Stage curtains, which can be opened and closed in front of them, are mainly installed on the performance stage, which is an opera, musical or theater. Stage curtains are wide in width and long in top and bottom.

In this connection, a stage curtain device has been developed which allows a stage curtain to be easily spread or folded by using an electric motor. An example of related prior art document is disclosed in Japanese Patent Application No. 10-0978046 entitled " stage curtain device " .

Such a stage curtain device uses an electrically operated drive motor, which is much easier than moving stage curtains by hand.

The prior art document uses an electrically operated drive motor and consists of a pulley connected to the drive motor and a pulley wound on a pulley in a wire form once and then both ends of the rotating member are connected to two divided stage curtains, Due to the weight, the rotating member may rotate around the pulley and the pulley. Particularly, as the rotating wire is stretched due to the summer season or aging, the swirling phenomenon becomes severe, which causes a failure to prevent the opening and closing of the stage curtain.

Accordingly, it is an object of the present invention to provide a stage curtain driving apparatus that can open and close a stage curtain which is driven by electric power irrespective of seasonal change or aging, is smooth, accurate and can be moved perfectly.

It is another object of the present invention to provide a stage curtain driving apparatus capable of performing opening and closing of a stage curtain even with a relatively low output capacity as compared with a conventional driving motor.

In the stage curtain driving device according to the present invention, a stage curtain opening / closing wire is wound on a drum (24) connected to a driving shaft portion (22a) of a decelerating motor (22) The end portions of the first and second wires 10 and 12 are separated into two wires 10 and 12 and the curtain rails 2 and 4 And the first and second stage curtains 6 and 8 follow the first and second stage curtains 6 and 8, respectively.

The ball screw 36 connected to the driving shaft portion 22a of the decelerating motor 22 and the gears 30 and 32 for controlling the opening and closing of the first and second stage curtains 6 and 8 The sensing belts 38a and 40a of the left and right wheel axles 38 and 40 that are installed on the linear motion guide case 34 and positioned on the axis of the ball screw 36 are mounted on the left and right sides of the linear motion guide case 34 And controls the driving of the decelerating motor 22 depending on whether the limit switches 42 and 44 are in contact with each other.

The present invention is configured to wind two wires, whose ends are fixed to each other, on opposite sides of a drum connected to a driving motor for moving a stage curtain moving by electric power, so that as the drum rotates clockwise or counterclockwise, There is an advantage that the opening and closing of the stage curtain is easy, precise, and perfect because the phenomenon of turning the tread is hardly occurred regardless of the season or aging. Further, since the output capacity of the driving motor for moving the stage curtain can be reduced to 1/5 to 1/10 of the conventional capacity, the size of the driving motor is reduced and the price is also inexpensive.

1 is a schematic diagram of a stage curtain apparatus provided with a stage curtain driving apparatus according to an embodiment of the present invention;
2 is a perspective view of a stage curtain apparatus including a stage curtain driving apparatus according to the present invention,
Fig. 3 is a front view of the stage curtain driving unit of Fig. 2,
Fig. 4 is a plan view of the stage curtain driving device of Fig. 2; Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of a stage curtain driving apparatus 20 according to an embodiment of the present invention. FIG. 2 is a perspective view of a stage curtain driving apparatus 20 including a stage curtain driving apparatus 20 according to the present invention. FIG.

A curtain rail (2) (4) as shown in Fig. 1 or 2 is installed parallel to a bottom surface of a square pipe type bracket (not shown) fixed to a stage ceiling part while partially overlapping. The curtain rails 2 and 4 are provided with a plurality of conveying openings 5 capable of being moved by way of the curtain rails 2 and 4 in the form of beams, The first and second stage curtains 6 and 8 are suspended.

The first and second stage curtains 6 and 8 are moved by the reciprocable movable wires 10 and 12 and are provided on the left and right sides of the stage in order to improve the reciprocal movement of the wires 10 and 12, a plurality of guide rolls are provided in the curved section of the curtain rails 2 and 4 although the guide rolls 14, 16 and 18 are provided in an idle form.

1 shows an example in which the curtain rails 2 and 4 are extended to both side walls of the performance stage and it is to be understood that the curtain rails 2 and 4 may be extended linearly do.

The stage curtain driving unit 20 according to the present invention is installed on one side of the curtain rails 2 and 4 in order to electrically close or open the first and second stage curtains 6 and 8. A movable switch 21 is provided in the stage curtain driving unit 20.

The stage curtain driving unit 20 according to the embodiment of the present invention has a drum 24 connected to the driving shaft portion 22a of the decelerating motor 22 together with a driving motor and a decelerating motor 22 as a decelerator , The deceleration motor 22 is operated by the power supply by the switch 'on' of the movable switch 21. [ The drum 24 is wound with wires 10 and 12 for conveying the first and second stage curtains 6 and 8 according to the present invention.

Fig. 3 is a front structural view of the stage curtain driving unit 20 of Fig. 2, and Fig. 4 is a plan structural view of the stage curtain driving unit 20 of Fig.

In the present invention, in constructing the stage curtain driving device unit 20, the stage curtain opening / closing wire is wound on the drum 24 connected to the driving shaft 22a of the decelerating motor 22, And the first and second wires 10 and 12, respectively.

The wire return point separating the first and second wires 10, 12 becomes the guide roll 18 located on the opposite side of the drive unit 20.

The end portions of the first and second wires 10 and 12 divided into two on the basis of the guide roll 18 are fixed to the left and right fixing positions 26 and 28 separately provided in the drum 24 in the present invention (2) (4) of the first and second stage curtains (6) and (8), which are wound in opposite directions to each other and then are passed over the guide rolls (14) (5).

The left and right fixing positions 26 and 28 on the winding surface of the drum 24 are formed as holes and the ends of the first and second wires 10 and 12 are knotted or fixed, The two wires 10 and 12 can be fixed to each other.

As described above, the first and second wires 10 and 12 are separately fixed to the drum 24, and in response to the rotation of the reduction gear 22, the drum 24 rotates clockwise or counterclockwise When the first and second wires 10 and 12 are unwound and simultaneously wound on the drum 24, the first and second wires 10 and 12 are fixed to the surface of the drum 24 separately, There is no phenomenon at all. Therefore, the performance stage can be accurately opened and closed by the transfer of the first and second stage curtains 6 and 8 in accordance with the driving of the decelerating motor 22. [

In the present invention, since the pulling force of the first and second wires 10 and 12 is fixed to the drum 24 separately, the pulling force of the first and second wires 10 and 12 is excellent, The present inventor has confirmed that the output capacity of the motor 22 can be reduced to 1/5 to 1/10 of the conventional capacity. In the prior art, the output capacity of the drive motor is 200 to 400 W. However, as an application of the present invention, it has been confirmed that the output capacity of the drive motor can be set to 40 W.

Accordingly, the size (volume) and weight of the decelerating motor 22 employed in accordance with the present invention are much smaller than those of the prior art, and the cost is also considerably reduced.

In the present invention, a controller for controlling the opening and closing of the first and second stage curtains 6 and 8 is provided to operate in conjunction with the decelerating motor 22.

The controller of the present invention is constructed such that the limit switches 42 and 44 provided in the linear motion guide case 34 can detect the opening and closing of the first and second stage curtains 6 and 8.

3 and 4, the controller of the present invention will be described in more detail. A drive gear 30 is mounted on the drive shaft portion 22a of the deceleration motor 22, and a driven gear 30 are connected to the linear motion guide case 34 by a ball screw 36 disposed horizontally. The left and right wheel shafts 38 and 40 are provided on the shaft of the ball screw 36 so as to be linearly movable along the spiral of the ball screw 36. The left and right wheel shafts 38 and 40 are fixed to the left and right wheel shafts 38 and 40, The rear planar portions of the guide shafts 38a and 40a are hooked on the rear wall groove surface portion 41 of the linear motion guide case 34 so that the guide shaft portions 38 and 40 can be moved left and right without being rotated.

When the detection bars 38a and 40a fixed to the left and right wheel shafts 38 and 40 are separated from the left and right wheel shafts 38 and 40, Position. Therefore, the user can establish an initial position setting for the complete opening and closing of the stage curtains (6) (8) by adjusting the position of the wheel side portions (38) and (40).

The sensing belts 38a and 40a of the wheel shaft portions 38 and 40 are moved in the right and left positions of the wheel shaft portions 38 and 40 in accordance with the rotation of the decelerating motor 22, The limit switches 42 and 44 mounted on the left and right sides are contacted.

The limit switches 42 and 44 on the left and right sides are sensors for detecting the position of the stage curtains 6 and 8 when the sensing rod 38a of the left wheel shaft portion 38 contacts the left limit switch 42 The stage curtains 6 and 8 are brought into a closed state when the detection spool 38a of the left wheel shaft portion 38 contacts the right limit switch 44. [

When the sensing bars 38a and 40a of the left and right wheel side portions 38 and 40 are brought into contact with the left and right limit switches 42 and 44, the driving of the decelerating motor 22 is stopped, When turned on, the deceleration motor 22 is rotated in the direction opposite to the previous rotation direction.

The left and right wheel shaft portions 38 on the axis of the ball screw 36 rotating at the same time as the drum 24 is driven by the rotation of the axis of the deceleration motor 22 are linearly and gradually transferred to the left or right.

One of the first and second wires 10 and 12 that are fixed to the respective fixed positions 26 and 28 of the drum 24 by rotation of the drum 24 is wound and the other is loosened to form the first wire 10 And the second wire 12 so that the first and second stage curtains 6 and 8 are moved in the direction in which they meet each other or in the direction away from each other. This is the role of opening or closing the performance stage.

The sensing stage 38a or 40a of the left and right wheel shafts 38 and 40 on the axis of the ball screw 36 is brought into contact with the left limit switch 42 or the right limit switch 44 And the driving of the decelerating motor 22 is stopped.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of claims and equivalents thereof.

(2) (4) - Curtain rail (5) - Feeder
(6) (8) - stage curtain (10) (12) - first and second wires
(14) (16) (18) - Guide Roll (20) - Driver Unit
(21) - a movable switch (22) - a decelerating motor
(22a) - motor shaft portion (24) - drum
(26) (28) - fixed position (30) - drive gear
(32) - driven gear (34) - linear motion guide case
(36) - Ball Screw (38) (40) - Wheel Shaft
(38a) (40a) - detection base (41) - rear wall groove surface
(42) (44) - Limit switch

Claims

In a stage curtain driving device,
The stage curtain opening and closing wire is wound on the drum 24 connected to the driving shaft portion 22a of the decelerating motor 22 and the wire is cut and divided into the first and second wires 10 and 12, The first and second stage curtains 6 and 8, which follow the curtain rails 2 and 4 installed parallel to each other after the ends of the wires 10 and 12 are fixed to the drum 24 separately and wound in opposite directions to each other, And the second stage curtain driving device is connected to the second stage curtain driving device.

A ballscrew (36) connected to a drive shaft portion (22a) of a deceleration motor (22) and gears (30) (32) for controlling opening and closing of the first and second stage curtains (6) The sensing belts 38a and 40a of the left and right wheel axles 38 and 40 located on the axis of the ball screw 36 are provided on the left and right sides of the rectilinear motion guide case 34, And controls the driving of the deceleration motor (22) according to whether or not the limit switches (42) and (44) are in contact with each other.