JP3886083B2 - Acoustic reflector device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an acoustic reflector apparatus, and more particularly to an improvement of a split-type acoustic reflector apparatus that is movably installed on a stage such as a theater.
[0002]
[Prior art]
For example, an acoustic reflector device is installed on a stage such as a theater for the purpose of enhancing or improving the acoustic effect. Generally, this type of acoustic reflector device is configured in a movable divided type. There are many cases.
[0003]
That is, the acoustic reflector apparatus shown in FIGS. 5 and 6 as a conventional proposal has a plurality of acoustic reflectors 1a, 1b, 1c which are divided bodies formed in a gate-like substantially similar shape. Each acoustic reflector 1a, 1b, 1c has a corresponding floor rail 2a, disposed on the stage floor F from the back side of the stage S on the right side in the figure to the audience side of the stage S on the left side in the figure. Subsequent to 2b and 2c, it is configured to be movable in the front-rear direction, which is the left-right direction in the drawing.
[0004]
In this acoustic reflector device, the intermediate acoustic reflector 1b can be projected and retracted with respect to the outermost acoustic reflector 1a, and the innermost circumference of the intermediate reflector 1b. It is supposed that the acoustic reflector 1c can be made to appear and disappear.
[0005]
Therefore, in this acoustic reflector device, the acoustic reflectors 1a, 1b, and 1c are moved along with the corresponding floor rails 2a, 2b, and 2c, and installed on the audience seat side of the stage S. As a matter of course, it is possible to store the stage S in the back side, as shown in the virtual diagram in the figure, when the storage is performed, in a state where the whole is compacted, with a virtual line arrow in the figure As shown, it is possible to move to the back of the stage S.
[0006]
Further, when the floor rails 2a, 2b, 2c are formed in a groove shape so as to dig down the stage floor F, the acoustic reflectors 1a, 1b, 1c act in a direction crossing the floor rails 2a, 2b, 2c. Therefore, there is an advantage that the so-called lateral displacement of the acoustic reflectors 1a, 1b, 1c can be avoided.
[0007]
[Problems to be solved by the invention]
However, in the conventional acoustic reflector apparatus described above, since the floor rails 2a, 2b, and 2c are permanently installed on the stage floor F, for example, when the stage S is used for performance, it is a so-called obstacle. There is a bug.
[0008]
When the floor rails 2a, 2b, 2c are formed in a groove shape in which the stage floor F is dug, the stage S is closed when used for other purposes, and the acoustic reflector apparatus is used. Has a problem that each work to open it is indispensable.
[0009]
In addition, regarding the placement of the floor rails 2a, 2b, and 2c on the stage floor F, if the stage S is equipped with a squeezing device such as a large squeezing or a small squeezing, it is necessary to interact with the squeezing device. In consideration of so-called interference, it is expected that the arrangement of the floor rails 2a, 2b, 2c, that is, the installation of the movable acoustic reflector device may be difficult depending on the situation. Is done.
[0010]
The present invention has been developed in view of the above-described circumstances. The purpose of the present invention is that a predetermined acoustic effect can be obtained at the time of use, and it can be installed and stored without requiring a floor rail. Thus, it is an object to provide an acoustic reflector apparatus that is optimal for expecting improvement in its versatility.
[0011]
[Means for Solving the Problems]
In order to achieve the above-described object, the configuration of the acoustic reflector apparatus according to the present invention is such that the outermost acoustic reflector formed in a gate shape is placed on the upper ceiling side from the back of the stage to the audience side of the stage. is movably suspended arranged pair of ceiling rails Rutotomoni, this also the outermost peripheral side of the sound reflecting plate in place an inner peripheral side of the sound reflecting plate gate shape, above the outermost side of the sound reflecting plate By hanging the inner acoustic reflection plate movably through a pulley on the lower rail, the inner acoustic reflection plate is moved along with the outermost acoustic reflection plate. Made it possible to invade.
[0012]
Also, the configuration of the acoustic reflector device of the present invention is a pair of ceiling rails in which the outermost acoustic reflector formed in a gate shape is arranged on the upper ceiling side from the back of the stage to the audience seat side of the stage In addition, a portal-like inner acoustic reflector is disposed in the outermost acoustic reflector, and an auxiliary rail disposed above the inner reflector. By connecting the pulley provided at the lower part of the outermost acoustic reflector to the outer peripheral side in a movable manner, the inner circumferential acoustic reflector can be moved in and out of the outermost acoustic reflector. You may do it.
At this time, a suspension member may be provided on the inner acoustic reflection plate, and the suspension member may be connected to the ceiling rail via a pulley.
[0013]
The present invention will be described below on the basis of the illustrated embodiment. The acoustic reflector device according to the embodiment of the present invention has a gate shape as shown in FIG. 1, FIG. 2, and FIG. An outer acoustic reflection plate 11, an intermediate acoustic reflection plate 12 serving as an inner acoustic reflection plate disposed in the outermost acoustic reflection plate 11, and also disposed in the intermediate acoustic reflection plate 12. The innermost acoustic reflector 13 is arranged on the innermost peripheral side, and each of the acoustic reflectors 11, 12, 13 is located on the right side in the drawing of the stage S to the left side in the drawing of the stage S. It is supposed that it is suspended so as to be movable by a pair of ceiling rails 14 arranged on the upper ceiling above the side.
[0014]
Incidentally, this acoustic reflector apparatus, in aspects of embodiments illustrated, although to consist of three pieces of sound reflecting plate 11, 12 and 13, the number of its is not good is arbitrarily set.
[0015]
By the way, each acoustic reflector 11, 12, 13 is in the illustrated embodiment, and although not shown in detail, while it is formed in a frame structure to reduce its weight, a so-called inside is provided with a makeup. It is said that an acoustic reflecting material (not shown) that also serves as a material is installed.
[0016]
Incidentally, as in the prior described above, in the case of setting so as to travel the sound reflecting plate 11, 12, 13 floor rail (code 2a, 2b, 2c reference in FIGS. 5 and 6) Since the acoustic reflectors 11, 12, and 13 are required to be self-supporting, the acoustic reflectors 11, 12, and 13 are robustly formed to have a large mechanical strength, and their own weight is increased, resulting in poor operability.
[0017]
In contrast to this, in the present invention, since each of the acoustic reflectors 11, 12, 13 is suspended from the ceiling rail 14, it is necessary and sufficient that the acoustic reflectors be formed to be lightweight.
[0018]
Therefore, in the embodiment illustrated, and as the sound reflecting plate 11, 12 and 13 weight formed in the frame structure is achieved, therefore, when to suspend the it to the ceiling rail 14, in the ceiling rail 14 The burden weight can be reduced, and the ceiling rail 14 itself is not required to be configured to be more robust than necessary.
[0019]
In addition, since the acoustic reflectors 11, 12, and 13 are formed in a frame structure to reduce the weight, a large external force is exerted when the acoustic reflectors 11, 12, and 13 are moved next to the ceiling rail 14. For example, when the acoustic reflectors 11, 12, and 13 are moved using the drive source, the drive source does not need to be set to a larger configuration than necessary.
[0020]
Note that, in the illustrated embodiment, the outermost acoustic reflector 11, the intermediate acoustic reflector 12 positioned on the inner circumference of the outermost acoustic reflector 11, and the intermediate acoustic reflector 12. The innermost acoustic reflector 13 positioned on the inner circumference is formed in a portal shape, and the innermost acoustic reflector 13 has a back surface portion 13a and has a laterally approximately box shape. However, as will be described later, as long as it is set as a suspended type and performs a so-called accompanying movement, it is a matter of course that the free aspect may be selected by elaborating the design. is there.
[0021]
Next, the pair of ceiling rails 14 arranged on the ceiling side above the stage S is arranged in a fixed state on the housing side by an appropriate means that is not shown in detail, but is generally known. In the illustrated embodiment, one end which is the left end in the drawing is held by the falling wall A constituting the housing, but a free configuration may be selected for holding the one end.
[0022]
And this ceiling rail 14 shall be arrange | positioned so that this acoustic reflection board apparatus may be called out from the back side of the stage S to the audience seat side of the stage S, and each acoustic reflection board 11,12,13. In the figure, the pulleys 11b, 12b, and 13c held at the upper ends of the suspension members 11a, 12a, and 13b connected to the so-called rear side on the right side are connected in a rotatable manner.
[0023]
At this time, in the outermost acoustic reflection plate 11, the pulley 11 d held at the upper end of the so-called suspension member 11 c connected to the front side on the left side in the figure is also used as the ceiling rail 14. It is supposed to be connected in a rotatable manner.
[0024]
On the other hand, the intermediate acoustic reflector 12 and the innermost acoustic reflector 13 are pulleys 12d and 13e that are held at the upper ends of the suspension members 12c and 13d that are connected to the front side. Are connected to corresponding auxiliary rails 15 and 16 in a rotatable manner.
[0025]
That is, the auxiliary rail 15 is provided below the outermost acoustic reflection plate 11, and the auxiliary rail 16 is provided below the intermediate acoustic reflection plate 12.
[0026]
Incidentally, it goes without saying that the auxiliary rails 15 and 16 are horizontally arranged in a direction corresponding to the extending direction of the ceiling rail 14.
[0027]
In the illustrated embodiment, the auxiliary rails 15 and 16 are provided in a pair of left and right so-called left and right, but in addition to this, although not shown, the auxiliary rails 15 and 16 in the acoustic reflectors 11 and 12 are provided. It goes without saying that the number of arrangements may be freely set at an arbitrary lower position between them.
[0028]
Further, although not shown in detail, it goes without saying that the auxiliary rails 15 and 16 are configured to prevent so-called derailment from the end portions of the pulleys 12d and 13e linked to the auxiliary rails 15 and 16e.
[0029]
By the way, in the present invention, the means for moving the acoustic reflectors 11, 12, 13 is not particularly limited, and any means may be selected.
[0030]
In the illustrated embodiment, of the pulleys 11b, 12b, and 13c connected to the ceiling rail 14, the pulley 11b held by the outermost acoustic reflection plate 11 has a drive source (not shown) and is so-called. Although it is set so as to enable self-running, this drive source may also include other pulleys 12b and 13c.
[0031]
Moreover, instead of having a drive source in the pulley 11b, although not shown, a wire may be connected to the pulley 11b and the pulley 11b may be moved by pulling the wire. In this case, the wire is connected to the ceiling. Since it can be inserted into the rail 14, it can be said that it is advantageous in that so-called stowage is improved.
[0032]
Therefore, in the acoustic reflector apparatus formed as described above, for example, the outermost acoustic reflector 11 is moved to the back side of the stage S from the usage state shown in FIGS. By doing so, the pulley 12d in the intermediate acoustic reflector 12 moves the auxiliary rail 15 disposed on the outermost acoustic reflector 11.
[0033]
When the movement of the pulley 12d on the auxiliary rail 15 is prevented, the intermediate acoustic reflector 12 moves together with the outermost acoustic reflector 11, and the innermost acoustic reflector 13 is moved. In this case, the pulley 13e moves on the auxiliary rail 16 disposed on the intermediate acoustic reflector 12.
[0034]
When the movement of the pulley 13e on the auxiliary rail 16 is blocked, the innermost acoustic reflection plate 13 moves together with the intermediate acoustic reflection plate 12 and the outermost acoustic reflection plate 11, Each acoustic reflector 11, 12, 13 moves in a manner similar to the accompanying movement.
[0035]
Further, for example, by moving the outermost acoustic reflection plate 11 to the audience seat side of the stage S from the storage state shown in FIG. Is moved together with the outermost acoustic reflector 11 and the innermost acoustic reflector 13 is moved together with the intermediate acoustic reflector 12.
[0036]
At this time, since each of the acoustic reflectors 11, 12, and 13 is suspended from the ceiling rail 14, the floor rail is arranged on the stage floor F as long as each lower end is set so as not to contact the stage floor F. Of course, the stage floor F will not be scratched.
[0037]
And since the floor rails are not distributed, when the pedestal device (not shown) or the like is installed on the stage S, the situation where the floor rails do not disturb the floor rail is not caused, and the pedestal device is placed in a predetermined position. This is advantageous in that it can be easily provided.
[0038]
Furthermore, since the ceiling rail 14 is arranged so-called right and left above the stage S, even if a suspension baton device (not shown) or the like is provided on the ceiling side, It is also advantageous in that it can be installed.
[0039]
At this time, the driving source connected to the pulley 11b in the outermost acoustic reflection plate 11 is further reduced in size as each of the acoustic reflection plates 11, 12, and 13 is made lighter. It becomes possible.
[0040]
In addition, since the drive source is connected only to the pulley 11b in the outermost acoustic reflection plate 11, the configuration for controlling the drive source is further simplified, and this acoustic reflection is performed. An increase in manufacturing cost and maintenance cost of the entire plate apparatus can be prevented.
[0041]
While the acoustic reflector apparatus according to another embodiment shown in FIG. 4 has a so-called intermediate acoustic reflector 17 in addition to the acoustic reflectors 11, 12, and 13, it is divided into four pieces , It is assumed that the acoustic reflectors 11, 12, and 17 on the outer peripheral side are movably linked to auxiliary rails 18, 19, and 20 disposed on the acoustic reflectors 12, 17, and 13 on the inner peripheral side.
[0042]
That is, the rear pulleys 11b, 12b, 17a, and 13c of the acoustic reflectors 11, 12, 17, and 13 are connected to the ceiling rail 14 so as to be movable, while the acoustic reflectors 11, 12, and 17 are connected. The pulleys 11e, 12e, 17b held at the lower part of the rear side of the auxiliary rails 18, 19, 20 arranged on the upper portions of the so-called inner-side acoustic reflectors 12, 17, 13 that are respectively below. It is assumed that they are connected so as to be movable.
[0043]
Incidentally, the pulleys 11d are held in front of the outermost side of the sound reflecting plate 11, it is obvious that movably interlocking the ceiling rail 14.
[0044]
Further, in this embodiment, the auxiliary rails 18, 19, and the above-described auxiliary rails 18, 19, 13 are disposed on the inner peripheral side of the outermost acoustic reflection plate 11. The design is improved, that is, the appearance is improved by devising 20 so that it does not enter the view from the audience side. However, as in the case of the above-described embodiment, it is formed in various other aspects. Of course it may be done.
[0045]
Therefore, also in the case of this embodiment, by moving the outermost acoustic reflector 11, the inner acoustic reflectors 12, 17, and 13 can be moved in a manner similar to the accompanying movement. In other words, they can be moved simultaneously.
[0046]
As described above, the acoustic reflectors 11, 12, (17,) 13 are suspended from the ceiling rail 14, so that the lowest end of each acoustic reflector 11, 12, (17,) 13 is the stage floor F. Although not assumed to be in contact with each other, although not shown in the figure, a so-called sliding member is provided at the lowermost end of each acoustic reflector 11, 12, (17,) 13, although not shown. Of course, it is also possible to add a roller or the like.
[0047]
As described above, in the present invention, among the plurality of acoustic reflectors having a gate shape, the outermost acoustic reflector is disposed on the upper ceiling above the stage to the audience seats on the stage. It is set so that the lower end of each acoustic reflector is not in contact with the stage floor. As long as there are no scratches on the stage floor.
[0048]
At this time, as long as each acoustic reflector has a self-supporting property, it is necessary and sufficient to form a light weight. Therefore, it is possible to reduce the weight and improve the operability. Thus, for example, when the drive source is connected to a pulley connected to the ceiling rail, the drive source can be downsized.
[0049]
And since the floor rails are not distributed, when the pedestal device is installed on the stage, the floor rails do not disturb the so-called obstacles, and it is easy to install the pedestal device in place. To.
[0050]
In addition, since the ceiling rails are arranged so-called right and left above the stage, the acoustic reflector device can be installed even when a suspension baton device or the like is provided on the ceiling side.
[0051]
And in this invention, at the time of the movement of the acoustic reflector, the innermost acoustic reflector is moved at the same time in a manner similar to the accompanying movement only by moving the outermost acoustic reflector. Is possible.
[0052]
Therefore, by connecting the drive source only to the pulley held by the outermost acoustic reflector and linked to the ceiling rail, and by controlling this drive source, each acoustic reflector can be moved. Thus, the configuration for controlling the drive source can be further simplified, and an increase in manufacturing cost and maintenance cost of the entire acoustic reflector device can be prevented.
[0053]
As a result, according to the present invention, not only can a predetermined acoustic effect be obtained at the time of use, it can be installed and stored without requiring a floor rail, and it is optimal for expecting an improvement in its versatility. There are advantages.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an acoustic reflector apparatus according to an embodiment of the present invention.
FIG. 2 is a plan view of the acoustic reflector apparatus shown from the position of line XX in FIG.
3 is a longitudinal sectional view showing a state in which the acoustic reflector apparatus of FIG. 1 is housed. FIG.
FIG. 4 is a view showing an acoustic reflector apparatus according to another embodiment in the same manner as FIG.
FIG. 5 is an elevational view showing a conventional acoustic reflector apparatus.
6 is a plan view showing the acoustic reflector apparatus of FIG. 5. FIG.
[Explanation of symbols]
11, 12, 13, 17 Acoustic reflectors 11a, 11c, 12a, 12c, 13b, 13d, 17a Suspended members 11b, 11d, 11e, 12b, 12d, 12e, 13c, 13e, 17b Pulley 13a Rear surface 14 Ceiling rail 15, 16, 18, 19, 20 Auxiliary rail A Lower wall F of the body F Stage floor S Stage

Claims (3)

Rutotomoni sound reflecting plate of outermost side formed in a gate shape is above the movably suspended on a pair of ceiling rails disposed on the ceiling side of toward audience side from the rear side stage of the stage, the outermost peripheries Similarly, a gate-shaped inner acoustic reflection plate is disposed in the acoustic reflection plate, and the inner circumferential acoustic reflection plate is arranged on a rail disposed under the outermost acoustic reflection plate via a pulley. An acoustic reflector apparatus in which the inner-side acoustic reflector can be moved in and out of the outermost-side acoustic reflector by being suspended so as to be movable . The outermost acoustic reflector formed in the gate shape is movably suspended on a pair of ceiling rails arranged on the upper ceiling side from the back of the stage to the audience seats on the stage, and this outermost side Similarly, a gate-shaped inner acoustic reflection plate is disposed in the acoustic reflection plate, and an auxiliary rail disposed on the upper inner acoustic reflection plate is provided below the outermost acoustic reflection plate. An acoustic reflector apparatus in which the inner circumferential acoustic reflector can be moved in and out of the outermost circumferential acoustic reflector by moving the pulleys in a movable manner . The acoustic reflector apparatus according to claim 1 or 2 , wherein a suspension member is provided on the inner acoustic reflection plate, and the suspension member is connected to the ceiling rail via a pulley .

Images