JPH11104363A - Sound reflecting board device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide desired sound effect and to prevent useless occupation of a housing space when respective components of a movable structure constituting a sound reflecting board device are stored in the vicinity such as the upper space of the stage so as to provide optimum use for a small/middle scale musical band. SOLUTION: A sound reflecting board device is provided with a sound reflecting board main body 1, a pair of left and right portal towers 2, 2 which can be moved on a stage S in the width direction of the stage S and are adjacent to the both side face parts 12, 12 of the sound reflecting board main body 1, and a portal bridge 3 which can be moved upward/downward in the upper side of the stage S and is brought close to a ceiling part 13 of the sound reflecting board main body 1. The sound reflecting board main body 1, which can be moved upward/downward between the lower side and the upper side of the stage S, is provided with a back face part 11 facing the audience seat G side on the stage S, the pair of side face parts 12, 12 integrally connected to the both left and right sides of the back face part 11 so as to face each other, and the ceiling part 13 integrally connected to the upper ends of the pair of side face parts 12, 12 so as to face downward. The portal towers 2, 2 and the portal bridge 3 are designed according to specifications for a sound reflecting board.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an acoustic reflector device, and more particularly to an improvement in a movable acoustic reflector device provided on a theater stage or the like.

[0002]

2. Description of the Related Art Conventionally, there have been various proposals for an acoustic reflection plate device movably provided on a stage of a theater or the like, but in recent years, many of them have tended to be increased in size.

One of the reasons is that theaters and halls in recent years are built with consideration for multipurpose use.
In other words, let alone the main building such as a theater or a hall, for example, even if there is a stage provided there, widen the frontage, increase the depth, and increase the height of the ceiling It can be set to increase the stage space formed there.

[0004] This is because if the stage space is set to be large, the stage can be used for multiple purposes, and the opportunity to use the theater or the hall increases, and the theater or the hall increases. This is not to be expected because the economic effects of building a hall can be expected.

[0005] As a result, the acoustic reflector device installed on the stage is also set large because the stage space is large, so that a large space is not wasted, that is, a large acoustic space can be produced. Currently, this is to be increased in size.

[0006] For example, music performed by an orchestra on the stage is performed by a small or medium-sized orchestra in addition to a large-scale orchestra or the like. It would be common to see that much more of the small- to medium-sized orchestras are, rather than the case.

[0007] When a large-scale orchestra performs, it is not inconvenient to use a large-sized movable acoustic reflector device, but when a small to medium-sized orchestra performs. Considering that the acoustic effect is worsened by using an acoustic space larger than necessary, it can be said that it is better to use an acoustic space according to the size of the orchestra.

Conversely, in a theater or a hall where a large-sized movable acoustic reflector device is provided, the chance of using the acoustic reflector device is reduced. As a result, there is a fear that the expected economic effect due to the use of the theater or the hall cannot be expected.

On the other hand, in the case of this type of movable acoustic reflector device, when it is not used, it is generally used as a storage space under the stage, a space behind the stage, and an upper portion close to the ceiling of the stage. Although it is said that a space is used, in the upper space close to the ceiling of the stage, as is well known, various devices such as lights and microphones, which are called hanging objects, are originally arranged.

[0010] In recent years, some, but not all, of the suspended objects may be set so that they can be moved vertically and horizontally in the upper space.

In view of the above situation, if the components constituting the acoustic reflector device are large, it is difficult to realize the components even if the components are accommodated in an upper space near the ceiling of the stage. In addition to this, there is a problem that, in some cases, the arrangement of a suspended object to be originally disposed in the upper space may be omitted.

When each of the components constituting the acoustic reflector device is enlarged, a large amount of so-called dead space is created, both when the components are accommodated in the back of the stage and when they are accommodated under the stage. This means that it is not desirable in that sense.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a movable structure which constitutes an acoustic reflector plate device, as well as providing a desired acoustic effect. The present invention provides an acoustic reflector device that is optimal for use by small to medium-sized orchestras by eliminating the useless occupation of the storage space as each of the components is stored around the stage such as the space above the stage That is.

[0014]

Means for Solving the Problems To achieve the above-mentioned object, the configuration of the acoustic reflector device according to the present invention basically includes a rear portion facing the audience side on the stage, A pair of side portions integrally provided on the left and right sides of the back portion and substantially opposed to each other, and a ceiling integrally provided on the upper portions of the back portion and the pair of side portions and substantially opposed to each other. A sound reflecting plate main body having a section and being movable up and down between the stage and the stage, and being movable toward the frontage of the stage on the stage and being adjacent to both side portions of the sound reflecting plate main body. A pair of left and right portal towers and a portal bridge that can be moved up and down above the stage and that is located near the ceiling of the acoustic reflector main body. Is set to That.

More specifically, it has a side sub-panel for closing a gap formed between the portal tower and the other part on the stage side facing the portal tower, and the side sub-panel has an acoustic reflection plate specification. Is set to
It is also assumed that a ceiling sub-panel for closing a gap formed between the portal bridge and the other part of the stage on the opposite side of the stage is provided, and that this ceiling sub-panel is set to an acoustic reflection plate specification.

At this time, each of the side sub-panel and the ceiling sub-panel may be swingably held at the other part of the stage, or the side sub-panel may be held at the side and the ceiling sub-panel may be held at the ceiling. May be held so as to be swingable.

It is assumed that the above-mentioned acoustic reflector main body is set so that an upper end surface of a ceiling part can constitute a floor surface of a stage.
Further, it is assumed that the upper end surface of the floor portion, which is integrally connected to the rear portion and the lower ends of the pair of side surface portions and faces the ceiling portion, is set so as to form the floor surface of the stage.

Preferably, the acoustic reflector main body is
It is assumed that it is set so that it can be raised and lowered at a position near the audience side on the stage, and the dimension in the frontage direction of the stage is as small as possible while keeping the dimension in the depth direction of the stage as small as possible It is assumed that it is set to be large.

Preferably, the above-mentioned acoustic reflector device is embodied on a stage which is set such that an auxiliary stage can be brought close to the end on the side of the audience, and the auxiliary stage is previously set in the audience. It is preferable that the space be set up and down.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. An acoustic reflector device according to an embodiment of the present invention, as shown in FIGS. For example, it is assumed that the stage is provided in connection with the stage S in a theater, and in the illustrated embodiment, the stage S is set so that the auxiliary stage S1 can be brought close to the end near the customer side G. .

That is, the acoustic reflector device according to the present invention is not basically supposed to be used by a large orchestra such as an orchestra. The composition is designed to be optimal when used by an orchestra.

Therefore, the acoustic reflecting plate device according to the present invention is formed to be small, so to speak, so that the acoustic reflecting plate device is arranged at a predetermined position on the stage S near the customer side G. In some cases, the space surrounded by the acoustic reflector device is sometimes narrowed, and there is a possibility that the space may be insufficient.

At this time, if the stage S is set to have the auxiliary stage S1 close to the stage S, the shortage of the space can be solved by using the auxiliary stage S1.

Therefore, in the illustrated embodiment, the stage S
Is set so that an auxiliary stage S1 used as an overhanging stage can be brought close to the end of the seating side G. The auxiliary stage S1 will be described briefly. When not in use, as shown in FIG.
1 and is set up so that it can be moved up and down in the pit P1 by a lift mechanism L1 as an appropriate elevating means of the equipment.

In the illustrated embodiment, it is assumed that, for example, an auxiliary stage S2 which is used as a so-called approaching orchestra is further closer to the auxiliary stage S1, and this auxiliary stage S2 is also adjacent to the pit P1 when not in use. Pit P to be set up
2 and is set up and down in this pit P2 by a lift mechanism L2 as an appropriate lifting means of equipment.

As shown in FIG. 3, when each of the auxiliary stage S1 and the auxiliary stage S2 is not in use, as shown in FIG. If necessary, a number of chairs (not shown) are arranged as shown in the upper half of FIG.

The acoustic reflector device according to the embodiment of the present invention has an acoustic reflector main body 1, a pair of portal towers 2 and 2, and a portal bridge 3.
Needless to say, the acoustic reflector main body 1 is set to the acoustic reflector specification, but the pair of portal towers 2
2 and the portal bridge 3 are also set to the acoustic reflector specification.

To explain a little, the acoustic reflector main body 1 is provided with appropriate means, that is, in the illustrated embodiment, the stage S
A lift mechanism L3 provided in the lower pit P3 switches between a position below the stage S and a position above the stage S, and a seat side G on the stage S.
It is set to be able to move up and down at a closer position.

The acoustic reflector main body 1 has a vertical dimension as shown in FIGS. 1 and 2 while minimizing the dimension of the stage S, which is the leftward direction in FIGS. 1 and 2, in the depth direction. The size of the stage S in the frontage direction is set to be as large as possible.

However, even if it is set as large as possible, compared with the opening O of the stage S, it is naturally set to be small so as not to generate a so-called dead space in the peripheral portion. Being done
The arrangement of the portal tower 2 and the portal bridge 3 to be described later is indispensable.

By setting the acoustic reflector main body 1 as described above, the acoustic reflector main body 1 is formed to have a so-called plate shape having an elongated rectangular plane. The lift mechanism L3 that raises and lowers the reflector main body 1 is also set to have a structure having an elongated rectangular flat surface. As a result, when the lift mechanism L3 lifts and lowers the acoustic reflector main body 1, the naughty so-called auction is performed. This is advantageous in that generation can be prevented beforehand.

On the other hand, in the illustrated embodiment, the acoustic reflector main body 1 is integrally provided on the left and right sides of the back surface 11 facing the customer side G on the stage S. And a pair of side portions 12 and 12 which are substantially opposed to each other, a back portion 11 and a pair of side portions 12 and 1.
And a ceiling portion 13 which is integrally connected to the upper end of the base member 2 and faces substantially downward.
And a floor portion 14 which is integrally connected to lower ends of the pair of side portions 12 and 12 and faces the ceiling portion 13.

At this time, the back portion 11, the pair of side portions 1
The inner surfaces of the ceiling 2 and the ceiling 13 are set to the acoustic reflection surfaces 11a, 12a and 13a, respectively, while the upper end surface 13b of the ceiling 13 can form the floor F of the stage S. Also, the upper end surface 14a of the floor 14 is set so as to be able to form the floor F of the stage S, and the floor 14 is provided with the lift mechanism L3 provided in the pit P3. It is said that the upper end is connected continuously.

Next, the portal tower 2 and the portal bridge 3 are set so as to have a thin plate shape as compared with the above-described acoustic reflector main body 1. When placed on S, it is placed to conceal a gap that appears around it.

In the present invention, as described above,
The portal tower 2 and the portal bridge 3 are also set to have an acoustic reflection plate specification, and are set to constitute a part of the acoustic reflection plate device according to the present invention.

That is, first, the pair of portal towers 2 and 2 are set so as to be movable on the stage S in the frontage direction of the stage S and to be adjacent to both side portions 12 of the acoustic reflector main body 1. When placed in this neighborhood, the gap is concealed as described above, and at this time, the surface that faces the customer side G is set as the acoustic reflection surface 2a.

Incidentally, although not shown, the portal tower 2 is, for example, hung on a guide rail whose upper end is arranged in the frontage direction, and can be moved in the frontage direction by an external force such as manual operation. Is provided.

Next, the portal bridge 3 can be moved up and down above the stage S, and the ceiling 13
, The space is concealed in the same manner as the portal tower 2 when the vehicle is placed in this neighborhood state, and at this time, it faces the guest seat side G. The surface is set as the acoustic reflection surface 3a.

The portal bridge 3 has its upper end connected to a wire rope W hanging from a baton (not shown) constituting a suspended object. Is provided so as to be able to move in the vertical direction by winding or pulling out.

The above-described portal tower 2 and portal bridge 3 function so as to cover gaps that appear around the acoustic reflector main body 1 when the acoustic reflector main body 1 is arranged on the stage S. In some cases, as shown in FIGS. 1 and 2, a gap is still formed between the portal tower 2 or the portal bridge 3 and the other part of the stage S facing the same, that is, a wall (not shown) that partitions the stage S. May be formed.

Therefore, in the illustrated embodiment,
It is assumed that the portal tower 2 has a side sub-panel 21 that closes a gap formed between the portal tower 2 and the other portion of the stage S facing the portal tower 2, and that the side sub-panel 21 is set to an acoustic reflection plate specification. Portal Bridge 3
And a ceiling sub-panel 31 for closing a gap formed between the stage and the other part of the stage S on the opposite side.
It is assumed that the ceiling sub-panel 31 is set to the acoustic reflection plate specification.

In the illustrated embodiment, as shown in FIG. 2, it is assumed that the side sub-panel 21 is swingably held by the side portion 12 of the acoustic reflector main body 1, and as shown in FIG. In addition, the ceiling sub-panel 31 is swingably held by a wall that partitions the stage S, which is the other part of the stage S.

Incidentally, the side sub-panel 21 may be held swingably on a wall defining the stage S like the ceiling sub-panel 31, and the ceiling sub-panel 31 may be acoustically reflected like the side sub-panel 21. The plate body 1 may be swingably held by the ceiling 13.

When the side sub-panel 21 is assumed to be swingably held by the side surface portion 12 of the acoustic reflector main body 1, it is advantageous in that the side sub-panel 21 can be swung by a manual operation. When it is assumed that the base 31 is swingably held by a wall defining the stage S, it is advantageous in that the base 31 can be swingable by remote control.

Therefore, in the acoustic reflector device according to this embodiment formed as described above, the acoustic reflector main body 1 is lifted up from below the stage S and fixed in use. A predetermined acoustic space is formed by moving the portal tower 2 to the side portion 12 of the acoustic reflector main body 1 to make it close to the ceiling portion 13 of the acoustic reflector main body 1 by lowering the portal bridge 3. You will get.

At this time, if a gap appears between the portal tower 2 and the portal bridge 3 and the wall defining the other stage S on the side of the stage S facing the portal tower 2 and the portal bridge 3, it is held by the portal tower 2 or the like. Side panel 2
1, and the gap is blocked by the ceiling sub-panel 31 held by the portal bridge 3 or the like.

As a result, the acoustic reflector main body 1 formed by the acoustic reflector device, that is, the acoustic reflector plate specification, and the acoustic reflector plate specification are formed at predetermined positions on the stage S near the customer side G. A predetermined acoustic space is formed by the portal tower 2 and the portal bridge 3, and furthermore, the side sub-panel 21 and the ceiling sub-panel 31 formed according to the acoustic reflection plate specification. Music performance will be enabled.

At this time, the space including the acoustic space surrounded by the acoustic reflector device is narrowed. Therefore, when there is a fear that the space is insufficient, the stage S has an auxiliary stage S1 close to the stage. By using the auxiliary stage S1, it is possible to eliminate the above-mentioned space shortage.

When the auxiliary stage S2 used as an orchestra approaches the auxiliary stage S1, the auxiliary stage S2 can be used to more easily solve the above-mentioned space shortage.

On the other hand, when the above acoustic reflector device is not used, the acoustic reflector main body 1 is stored in the pit P3, which is the predetermined storage position, and the portal tower 2 is stored in the predetermined storage position in the reverse procedure to the above. On the sleeve of the so-called stage S, which is located, further, the portal bridge 3 is provided with the stage S, which is a predetermined storage position.
Of the stage S
Can be used, for example, as a ballroom.

At this time, the acoustic reflector main body 1 is housed under the stage S so as not to be in the way, and the portal tower 2 and the portal bridge 3 are formed in a thin plate shape. Is not bulky and does not disturb, allows full use of the stage S, does not hinder the use of suspended objects arranged above the stage S, and does not impose a restriction on the number of arrangements. Will be.

When the auxiliary stage S1 is accommodated in the pit P1 and the auxiliary stage S2 is accommodated in the pit P2, the seat G can be set to the immediate side of the stage S. If necessary, a large number of chairs can be arranged in this part.

[0053]

As described above, according to the present invention, not only the sound reflecting plate main body, but also the portal tower and the portal bridge, and further, the side sub-panel and the ceiling sub-panel are formed according to the sound reflecting plate specification. Therefore, a desired acoustic space is formed by the arrangement at the predetermined position.

When not in use, the main body of the acoustic reflector is housed under the stage so as not to be in the way.
The portal tower and the portal bridge are formed in a thin plate shape, so that the storage state is not so bulky and does not interfere, and even if the portal tower is stored in the sleeve of the stage at a predetermined position, the stage can be fully used, and Even if the portal bridge is stored in a space close to the ceiling above the stage, the use of the suspended objects arranged there is not hindered and the number of arrangements is not restricted.

Further, according to the present invention, the space including the acoustic space surrounded by the acoustic reflecting plate device becomes narrower.
By setting the stage to have the auxiliary stage close to it, the use of this auxiliary stage can eliminate the above-mentioned space shortage, and the auxiliary stage used as an orchestra close to the auxiliary stage In the case where the user is further approached, the shortage of the space can be more easily solved by using the auxiliary stage.

In the case where each auxiliary stage is accommodated in each pit, it is possible to set the seating side up to the stage immediately adjacent to the stage, and, if necessary, to arrange a large number of chairs in this portion. become.

As a result, according to the present invention, it is possible to obtain not only an acoustic space in which a desired acoustic effect can be obtained, but also that each component of the movable structure constituting the acoustic reflecting plate device has a space above the stage. This has the advantage of eliminating the needless occupation of storage space for storage around the stage, making it ideal for use by small to medium-sized orchestras.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view showing a use state of an acoustic reflector device according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view showing a non-use state of the acoustic reflector device shown in FIG. 1 in an upper half side, and showing a use state in the upper half side.

FIG. 3 is a schematic longitudinal sectional view showing a non-use state of the acoustic reflector device shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Acoustic reflection plate main body 2 Portal tower 3 Portal bridge 11 Back part 2a, 3a, 11a, 12a, 13a Acoustic reflection surface 12 Side part 13 Ceiling part 13b, 14a Top end surface 14 Floor part 21 Side sub panel 31 Ceiling sub panel G Customer seat P1, P2, P3 Pit S stage S1, S2 auxiliary stage

Claims (3)

[Claims] 1. A back portion facing the audience side on the stage, a pair of side portions integrally provided on the left and right sides of the back portion and substantially facing each other, a back portion and a pair An acoustic reflector main body having a ceiling portion which is integrally connected to the upper end of the side portion of the side and is substantially opposed to the lower portion, and which can be raised and lowered between under the stage and on the stage; A pair of left and right portal towers that can move in the frontage direction of the stage and are located near both sides of the acoustic reflector body, and portals that can move up and down above the stage and are located near the ceiling of the acoustic reflector body A sound reflector device comprising a bridge and a pair of portal towers and a portal bridge set to sound reflector specifications. 2. A side wall sub-panel for closing a gap formed between the portal tower and the other part of the stage on the opposite side of the stage, and the side wall sub-panel is set to an acoustic reflector specification. Item 1. The acoustic reflector device of Item 1. 3. A ceiling sub-panel for closing a gap formed between the portal bridge and another part of the stage on the opposite side of the portal bridge, and the ceiling sub-panel is set to an acoustic reflector specification. Item 1. The acoustic reflector device of Item 1.