KR200272281Y1 - apparatus for stage acoustics - Google Patents

Abstract

The present invention relates to an acoustic reflector for a stage, wherein in the acoustic reflector installed on the stage so that the reflecting plate reflecting the performance sound and the song sound is moved up and down by the driving means, the reflector is designed to front and rear the audience. Since it is rotatable by the rotating means 14, 74, the front and rear surfaces of the reflector can be designed in different designs, and the reflector is rotated as the performance contents change, thereby showing monotonousness by showing different background designs to the audience. The cost of replacing the reflector can be reduced as the performance changes.

Description

Apparatus for stage acoustics

The present invention relates to a stage acoustic reflection device.

In general, stages are equipped with acoustic reflection boards that not only deliver more vivid original sound to the audience (audience) during the performances of operas or symphony orchestras, but also reflect the performance and singing sounds to enable communication between stage performers, monitoring their own performances, and harmonizing between performances. 1, the front acoustic reflector 4 is installed at the rear front of the stage 2, and the side acoustic reflectors 6, 6 'are provided at both sides of the stage. The ceiling acoustic reflection plate 8 is provided in the ceiling, and the direction toward the auditorium 10 is open.

The front acoustic reflector 4 and the side acoustic reflector 6, 6 'can be moved up and down by a driving means (not shown), and the ceiling acoustic reflector 8 is moved up and down by a driving means (not shown). At the same time, the reflector is unfolded.

The acoustic reflector boards 4, 6, 6 ', and 8 that are visible in the seat are designed with drawings suitable for the performance contents. In particular, since the front acoustic reflector 4 forms the background of the stage, the speaker places a great deal of weight on the background design of the front acoustic reflector.

The acoustic reflector has a structure in which the upper ends of the plurality of reflecting plates are connected to a connecting bar (not shown), and the entire reflecting plate moves up and down by moving the connecting bar up and down.

However, the conventional acoustic reflector for the stage has only a structure that is moved up and down, and is designed as a picture only on the side seen from the audience, so even if the performance contents change, the background design remains the same, giving the audience a monotonous feeling, and the performance contents change. In order to change the design, the reflector had to be replaced.

Therefore, the present invention has been made to solve the above problems, and the object of the present invention is to design the front and back of the reflector with a different design, so that the performance of the performance changes the stage acoustic reflection that can show a different background design to the audience To provide.

1 is a perspective view generally illustrating a stage in which an acoustic reflector is installed;

2 is a schematic elevation view showing a front acoustic reflection device to which the present invention is applied;

3 is a detailed view of portion A of FIG. 2;

4 is a side view of FIG. 3;

5 is a plan view showing a state in which the reflector is coupled according to the first embodiment of the present invention;

6 is a plan view showing a state in which the reflecting plate according to the second embodiment of the present invention is coupled;

7 is a plan view showing a state in which the reflecting plate is coupled according to a third embodiment of the present invention;

8 is a plan view and an elevation view showing a state in which the reflecting plate is coupled according to a fourth embodiment of the present invention;

9 is an elevation view showing a rotating means according to a fifth embodiment of the present invention;

10 is an operation state diagram of the present invention.

<Description of the symbols for the main parts of the drawings>

12: reflector 14, 74: rotation means

16: connection bar 18: frame

20: upper fixing bracket 22: lower fixing bracket

24: fixed shaft member 26, 28: bearing block

42, 48: radial bearing 46: thrust bearing

The stage acoustic reflector according to the present invention is an acoustic reflector installed on a stage such that a reflector reflecting a performance sound and a song sound is lifted up and down by a driving means, wherein the reflector is designed to face the audience by designing its front and rear surfaces. It characterized in that the rotation is made possible by the rotating means.

The reflecting plate is composed of one flat plate provided on one side of the frame, the rotating means by rotating the frame to face the front and rear of the flat plate toward the audience.

The reflective plate may include a first curved plate and a second curved plate provided on both sides of the frame, and the rotating means may rotate the frame so that each outer surface of the first curved plate and the second curved plate faces the audience. You may.

The reflecting plate is composed of a flat plate and a curved plate provided on one side and the other side of the frame, the rotating means by rotating the frame may be so that each outer surface of the funnel plate and the curved plate toward the audience.

The reflective plate may form a rugby ball-shaped cross section by closely contacting both edges of the first curved plate and the second curved plate.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this embodiment, the front acoustic reflection plate installed on the rear front of the stage will be described as an example, and the illustration and explanation of the driving means for moving the acoustic reflection plate up and down will be omitted.

As shown in FIG. 2, the front acoustic reflection device to which the present invention is applied is arranged with a plurality of reflecting plates 12 at predetermined intervals in the left and right directions, and the upper center of each reflecting plate 12 is connected to the rotating means 14. It is connected to the connecting bar 16 by.

FIG. 3 shows A of FIG. 2 in detail, and a reflecting plate is not shown in order to clearly show the structure of the rotation means. As shown in the drawing, the frames 18 and 18 and the connecting bar 16, which are closely contacted with the reflecting plates, are connected to each other by the rotation means 14.

The rotation means 14, the upper fixing bracket 20 is coupled to the connecting bar 16, the lower fixing bracket 22 is coupled to the frame 18, 18, the upper fixing bracket 20 ) And the lower fixing bracket 22 is connected to the fixed shaft member 24, and the lower portion of the fixed shaft member 24 is coupled to the lower fixed bracket 22 by bearing blocks 26 and 28. to be.

The connecting bar 16 is in the form of a pipe, and is coupled to a driving means (for raising and lowering the reflecting plate) not shown by the pipe band 30. The connecting bar 16 and the upper fixing bracket 20 are fixed by a plurality of U-shaped bolts 32 and nuts 34.

The frame 18 has a structure in which the horizontal member 36 and the vertical member 38 made of a square pipe form a rectangular frame, and are provided by a plurality of fastening members 40 on both sides of the lower fixing bracket 22. Each combined to form a pair. Reflector 12, not shown, covers the frame 18 and the lower fixing bracket 22 at the same time.

The upper fixing bracket 20 forms a cross section of an H-shaped steel having upper and lower flanges 20a and 20b and a web 20c, and the upper and lower flanges 20a and 20b to both sides of the web 20c. The reinforcing rib 20d is provided in between. A portion of the upper flange 20a and the web 20c are cut in a portion where the pipe band 30 is coupled and a portion where the fixed shaft member 24 is coupled.

The lower fixing bracket 22 has a top and bottom horizontal plates 22a, 22a 'and vertical plates 22b, 22b', which form a rectangular frame, and a support plate 22c (FIG. 2C) at the side where the reflecting plate 12 is coupled. 4) is provided. The bearing block 26 is fixed to the constant plate 22a by the fastening member, and the bearing block 28 is fixed to the sewer flat plate 22a 'by the fastening member.

The fixed shaft member 24 is fixed to the flange of the upper fixing bracket 20 by a nut, and is rotatably coupled to the bearing blocks 26 and 28.

The bearing block 26 has a radial bearing 42 inserted into the housing 41, and the bearing block 28 has a thrust bearing 46 and a radial bearing 48 inside the housing 44. This is the inserted structure.

The housing of the bearing blocks 26 and 28 and the fixed shaft member 24 preferably have locking jaws and / or locking grooves formed to rotate and engage 180 degrees with each other. This allows the front and rear surfaces of the reflector to be accurately and easily rotated.

FIG. 4 is a side view of FIG. 3 and shows a structure in which the reflector 12 is tightly fixed to one side of the frame 18. This is because, as shown in Fig. 5, a reflecting plate made of one flat plate 52 is coupled to one side of the frame 18, and the rotating means 14 rotates the frame 18 so that the front surface of the flat plate is rotated. And a first embodiment of the present invention with the back side facing the audience.

The reflecting plate may be configured in various structures. FIG. 6 shows that the reflecting plate is composed of a first curved plate 54 and a second curved plate 56 provided on both sides of the frame 18, and a rotating means 14 '. Is a second embodiment of the present invention in which each outer surface of the first curved plate 54 and the second curved plate 56 faces the audience by rotating the frame 18.

7 shows that the reflecting plate is composed of a flat plate 58 and a curved plate 60 provided on one side and the other side of the frame 18, and the rotating means 14 is rotated by rotating the frame 18. The third embodiment of the present invention in which each outer surface of the flat plate 58 and the curved plate 60 faces the audience.

On the other hand, as a fourth embodiment of the present invention, as shown in Figure 8, the reflecting plate has a rugby ball-shaped cross-section in close contact with both edges of the first curved plate 62 and the second curved plate 64 It may be configured as a structure. In this case, the frame is composed of only the horizontal member 66 on the upper side of the reflecting plate, and the reflecting plate is coupled down to the lower side of the horizontal member 66, and the pivot means 68 is formed at the center of the horizontal member 66. It is preferable to set it as the structure to be bonded.

In the above embodiments, the reflector is fixed to the frame by a bracket and a fastening member (not shown).

9 is a fifth embodiment of the present invention, in which the rotation means 74 is provided with a rotating shaft member 78 that is rotated by a motor 76. The rotary shaft member 78 is fixed to the constant plate 22a and the sewer flat plate 22a 'of the lower fixing bracket 22 with a nut. The motor 76 is fixed to the upper fixing bracket (20). The remaining part is the same as that of FIG.

In the stage acoustic reflector configured as described above, according to the performance, for example, the front surface of the reflecting plate is designed with a pattern D1 as shown in FIG. 2, and the back surface of the reflecting plate is a pattern D2 as shown in FIG. ), The reflector is rotated in the direction of the arrow in FIG. 10 so that the front and the back face the audience, thereby increasing the background effect of the performance and easily eliminating the monotony of the stage.

At this time, the rotation means of FIG. 3 rotates the reflector manually, and may be configured to easily rotate the reflector with a pulley, not shown. The rotating means of Fig. 9 rotates the reflecting plate by a switch operation not shown by the motor.

According to the acoustic reflector for the stage according to the present invention, the front and back of the reflector is designed in a different design, and the reflector is rotated as the performance contents change, thereby reducing monotony and showing the audience a different background design. As a result, the cost of replacing the reflector can be reduced.

Claims (3)

In the sound reflector installed on the stage so that the reflecting plate reflecting the performance sound and the song sound is moved up and down by the driving means, And the reflecting plate is rotatable by the rotating means to design the front and the back of the reflector to face the audience. The method of claim 1, The reflector is made of a flat plate installed on one side of the frame, And the rotating means rotates the frame so that the front and rear surfaces of the reflecting plate face the audience. The method of claim 1, The reflective plate is composed of a first curved plate and a second curved plate installed on both sides of the frame, The rotating means rotates the frame so that each outer surface of the first curved plate and the second curved plate faces the audience.