JP3641713B2 - Hall proscenium variable device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hall proscenium variable device for adjusting the size of an opening in order to use a music hall or the like for various purposes such as theater.
[0002]
[Prior art]
In theaters mainly composed of theater, a partition wall is provided from the ceiling to the front of the stage, and the lower end of the partition wall is the height of the proscenium (opening). Then, the curtain is lowered from the ceiling to adjust the height of the opening, and the panel is moved in and out from the side to adjust the width dimension.
The panel is provided with guide rails on the upper surface portion and the lower surface portion, respectively, and these guide rails are connected to guide portions provided on the partition wall and the floor surface to move the panel left and right.
[0003]
[Problems to be solved by the invention]
However, in the music hall, the partition wall is not provided in the center of the stage in order to emphasize the sound effect, and the center of the proscenium (opening) is open to the ceiling.
In recent years, theaters and halls have been used for various purposes, and music halls are often used for various plays.
Therefore, it is required to adjust the size of the proscenium (opening) according to the play. However, since there is no partition wall in the center of the stage of the music hall, it is extremely uneconomical to adjust the width of the proscenium by providing a panel with a height up to the ceiling.
Therefore, there is a demand for the development of a proscenium variable device that can adjust the width of the proscenium even when there is no partition wall at the top.
[0004]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hole proscenium variable device capable of adjusting the width dimension of the proscenium even when there is no partition wall in the upper part.
[0005]
[Means for Solving the Problems]
The present invention is a hall proscenium variable device that adjusts the width dimension of the opening by projecting the panels from the side walls on both sides of the stage toward the center, respectively.
Panels each provided on the side wall and having a guide rail attached to the upper surface portion and a slide plate that protrudes downward through the slit on the floor surface on the lower surface portion;
A guide roller which is disposed at two positions with a gap between the side walls and which is in contact with both side surfaces of the guide rail to prevent the panel from tilting;
A plurality of rollers provided below the floor surface and having grooves into which the slide plate is inserted are arranged in a straight line along the movement range of the panel and have a transfer unit that moves the panel. .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
First, in FIG. 6, in the music hall, side walls 2 are provided on both sides of the stage downward from the ceiling 1 to form a proscenium (hereinafter referred to as an opening 3).
In order to use this music hall for theatrical performance, etc., the opening 3 can be adjusted by lowering the curtain or panel 4 to an appropriate height by a known means to adjust the height of the opening 3, and the panel from both sides. The width of the opening 3 is adjusted by projecting 11 toward the center.
Note that the lower end of the panel 4 is lowered to a position overlapping the upper end of the panel 11.
[0007]
The panel 11 has a size corresponding to the height on both sides of the opening 3, and a guide rail 12 having an H-shaped cross section is attached to the upper surface. The guide rail 12 is formed longer than the width of the panel 11, protrudes on the opposite side of the opening 3, and is fixed to the side surface of the panel 11 with a reinforcing frame 13.
Further, a slide plate 14 is attached to the lower surface of the panel 11 vertically downward. The slide plate 14 projects downward through a slit 16 formed in the floor surface 15.
[0008]
Support plates 21 are provided on the side wall 2 at two spaced locations. These guide plates 21 are provided with two guide rollers 22 facing each other with the guide rail 12 interposed therebetween. The guide roller 22 contacts the lower surface of the guide rail 12 to support the weight of the panel 11, and the flange portion 23 contacts the side surface of the guide rail 12 to prevent the panel 11 from being inclined.
A mounting plate 24 is attached to the side wall 2 in the middle of the two support plates 21, and a motor 25 with a speed reducer is attached to the mounting plate 24. A pinion 26 is attached to the shaft end of the motor 25 with a speed reducer, and meshes with a rack 27 attached to the upper surface of the guide rail 12.
[0009]
The transfer part 30 is laid down over the range of movement of the panel 11 below the floor surface, and its end part projects from the end face of the side wall 2 to the center side.
The transfer unit 30 includes a plurality of rollers 32 rotatably attached to an attachment plate 31, and each roller 32 has a groove portion 33 into which the slide plate 14 is inserted. These rollers 32 are arranged in a straight line along the moving direction of the panel 11, place the panel 11 with the slide plate 14 inserted into the groove 33, and move the panel 11.
Note that a brush (not shown) is attached to the peripheral edge of the slit 16 so as to be in contact with the slide plate 14 and prevent the entry of garbage.
[0010]
Next, a procedure for adjusting the width dimension of the opening 3 will be described.
When the left and right panels 11 are retracted to the end of the transfer unit 30, the opening 3 is formed with the maximum width dimension.
Accordingly, when the motor 25 with a speed reducer is driven, the panel 11 is moved to the center side via the pinion 26 and the rack 27.
[0011]
In this case, since the slide plate 14 of the panel 11 rolls on the roller 32, it moves smoothly. Further, since the flange portions 23 of the upper two guide rollers 22 are in contact with the side surface of the guide rail 12, the panel 11 is always supported in a vertical state. And since the weight of the panel 11 is shared by both the upper guide roller 22 and the lower roller 32, the movement of the panel 11 is performed smoothly.
Further, since the slide plate 14 of the panel 11 is inserted into the groove 33, the traveling direction of the panel 11 is not shaken.
[0012]
According to the said Example, there exist the following effects.
1. Since the slide plate 14 is provided on the panel 11 and inserted into the groove 33 of the roller 32, the panel 11 is smoothly moved and the traveling direction of the panel 11 is not shaken.
2. Since the upper guide roller 22 is in contact with the side surface of the guide rail 12 and the panel 11 is always supported in a vertical state, the movement is performed smoothly even if the panel 11 protrudes from the side wall 2 to the center portion.
[0013]
3. Since the height of the panel 11 may be a dimension corresponding to the side wall 2, the size can be reduced and the cost can be saved.
4. Since the slit 16 formed on the floor 15 may be narrow enough to correspond to the slide plate 14, even if the panel 11 is not used, no practical obstacles occur.
[0014]
In the above embodiment, the panel 11 is moved through the pinion 26 and the rack 27 by driving the motor 25 with a speed reducer. However, the panel 11 may be operated using a wire or a chain, or a screw jack. It may be operated directly by pressing or manually.
[0015]
【The invention's effect】
The present invention is a proscenium variable device for a music hall that adjusts the width dimension of the opening by projecting panels from the side walls on both sides of the stage toward the center, respectively.
Panels each provided on the side wall and having a guide rail attached to the upper surface portion and a slide plate that protrudes downward through the slit on the floor surface on the lower surface portion;
A guide roller which is disposed at two positions with a gap between the side walls and which is in contact with both side surfaces of the guide rail to prevent the panel from tilting;
A plurality of rollers provided below the floor surface and having grooves into which the slide plate is inserted are arranged in a straight line along the movement range of the panel, and a transfer unit for moving the panel is provided. The panel can be projected and smoothly moved to the section, and the proscenium of the music hall can be adjusted to a size suitable for the play.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
FIG. 2 is a side view.
FIG. 3 is a view taken along line III-III in FIG.
4 is a view taken along line IV-IV in FIG. 1. FIG.
5 is a view as seen from the line VV in FIG. 1. FIG.
FIG. 6 is a front view of the stage of the music hall.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ceiling 2 Side wall 3 Opening part 11 Panel 12 Guide rail 14 Slide board 15 Floor surface 16 Slit 22 Guide roller 23 Gutter part 30 Transfer part 32 Roller 33 Groove part

Claims (1)

A hallway proscenium variable device that adjusts the width dimension of the opening by projecting the panels from the side walls on both sides of the stage toward the center, respectively.
Panels each provided on the side wall and having a guide rail attached to the upper surface portion, and a slide plate attached to the lower surface portion through a slit on the floor surface and projecting downward,
A guide roller that is disposed at two positions with a gap between the side walls and that is in contact with both side surfaces of the guide rail to prevent the panel from tilting;
A plurality of rollers provided below the floor surface and having grooves into which the slide plate is inserted are arranged in a straight line along the movement range of the panel, and a transfer unit for moving the panel is provided. Hall proscenium variable device.

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