JP3160196B2 - Reverberation control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reverberation control device for controlling a reverberation time by controlling a reflection and absorption state of sound on a wall of a building where various events such as a concert hall and a theater are performed.

[0002]

2. Description of the Related Art In a hall where various kinds of entertainments are performed, depending on the kind of the entertainments, the walls of the halls are used to reflect sound effectively to enhance the sound effect, or to absorb sound and suppress reflections. It is preferable that the acoustic performance be adapted to the following.

[0003] The time until the sound generated in one room such as a theater disappears is called reverberation time, and the length of the reverberation time depends on the reflection and absorption properties of the sound of the members constituting the room. In general, when rich reverberation is required in an event such as music, it is desirable that the reverberation time be longer, and when it is necessary to be able to hear sound clearly in an event such as a lecture, a shorter reverberation time is required. Desirably, it is a property.

[0004] Therefore, some venues such as halls for holding entertainments are equipped with a wall device for adjusting the reverberation time.

FIGS. 5 and 6 show the concept of a conventional wall device. In the conventional example shown in FIG. 5, a wall plate 2 having a rhombic cross section extending vertically on a wall surface 1 is rotatable at a required pitch. A reflection surface 2a is formed on one half of the wall plate 2, and a sound absorbing surface 2b is formed on the other half. When reverberation is required for an event such as music, the reflection surface 2a of the wall plate 2 is directed toward the room, and when reverberation is not required for an event such as a lecture, the sound absorbing surface 2b is directed toward the room. The wallboard 2 is manually rotated one by one according to the event to adjust the reverberation effect on the wall.

In FIG. 6, a reciprocating surface 3 is formed on a wall surface 1 with a required width and extending up and down at a required interval, and a slide plate 4 for exposing or shielding the retreating surface 3 in a room is provided. The surface of the slide plate 4 is used as a reflection surface, and the receding surface 3 is used as a sound absorbing surface. When reverberation is required for an event such as music, the receding surface 3 is shielded by the slide plate 4 and reverberated for an event such as a lecture. When the slide plate 4 is not required, the slide plate 4 is housed inside the wall surface 1 to expose the receding surface 3. Thus, the opening and closing of the slide of the slide plate 4 is manually performed to adjust the reverberation effect of the wall surface.

[0007]

In the prior art shown in FIGS. 5 and 6, the wall plate 2 and the slide plate 4 are moved by the intuition of the person to select the exposure state of the sound absorbing surface and the reflecting surface according to the entertainment. , Adjusting the reverberation effect. Therefore, the reverberation effect is different at each time, and the optimum reverberation effect is not always obtained. Further, the wall plate 2 and the slide plate 4 must be sequentially moved one by one, and the workability is extremely high. There was a defect such as bad.

The present invention has been made in view of the above circumstances, and provides an optimum reverberation effect easily and greatly improves the workability of adjusting the reverberation effect.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a wall defining an entertainment space, and a plurality of reverberation adjusting devices capable of moving up and down and storing a required number of connected sound absorbing panels provided inside the wall. And a control device for dividing the reverberation adjusting device into a plurality of zones, and controlling a panel elevating state according to a preset pattern for each zone, thereby improving workability. Since the zones are operated in parallel, the adjustment time is short, and the control device is simple because of the putter control.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, an entertainment space 30 is defined inside a building 5 by a wall device 6 according to the present invention. Hereinafter, the wall device 6 will be described.

The wall device 6, as shown in FIG.
A reflection plate 8 attached to the inside of the wall 7 and having a reflection surface shape effective for reverberation such as a cross section having a mountain shape, and a reverberation adjusting device 9 connected to the inside of the reflection plate 8 along the wall 7. , And a screen 10 provided inside the reverberation adjusting device 9. As shown in FIGS. 1 and 3, the reverberation adjusting device 9 is continuously provided so as to cover the entire wall surface of the wall body 7.

The wall 7 comprises a front wall 7a, a rear wall 7b, a right wall 7c, and a left wall 7d. The wall 7a, front wall 7b, right wall 7c, and left wall 7d are Each zone is divided into three blocks, and the reverberation adjusting device 9 is provided in a required set for each zone, and four sets are provided in the present embodiment. The reverberation adjusting device 9 will be described.

A required number of horizontally long rectangular sound absorbing panels 24 are connected by a connecting chain 22 (see FIG. 4A) so that the sound absorbing panels 24 have a height that covers the wall surface when stacked vertically. A side end of the sound absorbing panel 24 is slidably fitted on a guide rail 11, and the guide rail 11 is fixed to a reverberation adjusting device 9 and a column 12 erected between the reverberation adjusting devices 9. . The sound absorbing panel 24 has a structure in which a sound absorbing material 28 such as glass wool is fitted inside a frame body and both sides are covered with expanded metal.

A panel storage section 14 is provided above the wall 7 and above the ceiling 13. The ceiling 13 includes a guide roller 15 located above the guide rail 11 and a storage rail 16 extending horizontally from the guide roller 15.
And a driven gear 17 coaxial with the guide roller 15.
Further, an intermediate gear 18 is provided below the distal end of the storage rail 16, and a chain 19 is looped between the intermediate gear 18 and the driven gear 17. A drive gear 20 fitted to an output shaft of a motor (not shown) is provided below the intermediate gear 18, and a chain 21 extends between the drive gear 20 and the intermediate gear 18.

The drive gear 20 is driven by the motor (not shown).
When, for example, the guide roller 15 is rotated clockwise in the figure via the chain 21, the intermediate gear 18, the chain 19, and the driven gear 17, the connection chain 22 wound around the guide roller 15 is pulled up. Connecting chain 2
When the roller shaft 23 (see FIG. 2) to which the roller 2 is connected passes over the guide roller 15, a roller 25 rotatably provided at the tip of the roller shaft 23 rides on the storage rail 16, and the storage rail 16 It is moved to the right in the drawing, and is stored in the storage position while being hung on the storage rail 16.

When the sound absorbing panel 24 is completely retracted, the reflecting plate 8 is exposed through the screen 10 toward the room.

The screen 10 is formed by attaching expanded metal 27 to a frame 26 and further attaching a thin cloth so that the inside of a wall device such as a reverberation adjusting device 9 and a reflection plate 8 cannot be seen from the room. It is to be.

When reverberation is required, the reverberation adjusting device 9 is operated, for example, in a separate row, the sound absorbing panel 24 is stored in the panel storage section 14, and the reflection plate 8 is exposed through the screen 10. Thus, the reflection plate 8 reflects sound to obtain reverberation.

Further, the state of storage of the sound absorbing panel 24,
That is, the state of exposure of the reflection plate 8 is determined by the screen 10
Therefore, the entire appearance does not change irrespective of the operation state of the reverberation adjusting device 9, and the design is extremely excellent. Further, since the operation of the reverberation adjusting device 9 can be performed electrically and can be remotely controlled, it is not necessary to manually set the presence or absence of the reverberation effect and the degree of the reverberation effect. It is also possible to set optimal conditions while checking.

Next, control of reverberation will be described.

A driver 35 is provided for each of the zones, and each of the motors (not shown) of the panel storage unit 14 is mounted on the driver 35.
Connect. The front wall 7a, the rear wall 7b, and the right wall 7
c, intermediate controller 36a, intermediate controller 36 for each left wall 7d
b, an intermediate controller 36c and an intermediate controller 36d, and the three drivers 35 belonging to the wall 7a are connected to the intermediate controller 36a.
In addition, the three drivers 35 belonging to the front wall 7b are connected to the intermediate controller 3
6b, three drivers 35 belonging to the right wall 7c are connected to the intermediate controller 36c, and three drivers 35 belonging to the left wall 7d are connected to the intermediate controller 36d. Further, the intermediate controller 36a, the intermediate controller 36b, the intermediate controller 36c, and the intermediate controller 36d are connected to the main controller 37, and the main controller 37
Is connected to an operation panel 38.

The state of the reverberation adjusting device 9 is fully closed (a state in which the sound absorbing panel 24 is completely lowered and covers the wall 7), and fully opened (a state in which the sound absorbing panel 24 is completely stored and the reflecting plate 8 is exposed). In the second mode, pattern control is performed for each of the four zones of the reverberation adjusting device 9, and the control pattern is an A pattern in which the entire zone is fully closed, and some of the four reverberation adjusting devices 9 in B are fully open. The pattern (arbitrary pattern), the number of reverberation adjusting devices 9 greater than the B pattern are the fully open C pattern (arbitrary pattern), and the reverberation adjusting device 9 for the entire zone is the fully open D pattern. By selecting a control pattern, the reverberation effect of the entire entertainment space 30 is controlled.

In the operation panel 38, the arbitrary pattern can set the number of opening and closing of the reverberation adjusting device 9 and the position of the reverberation adjusting device 9 to be opened and closed.

Then, the pattern of each zone is selected by the operation panel 38, and the intermediate controller 36a, the intermediate controller 3
6b, the opening and closing of the reverberation adjusting devices 9 belonging to the respective zones are controlled via the intermediate controllers 36c and 36d.

For example, a fully closed pattern is selected for all three zones belonging to the front wall 7a, and the rear wall 7b
When the pattern of fully opening is selected for all three zones belonging to, and the pattern of opening only the left and right zones is selected for the right wall 7c and the left wall 7d, the intermediate controllers 36a and 36b The panels of all the reverberation adjusting devices 9 are lowered via the drivers 35 of the respective zones to bring them into the fully closed state. The fully open pattern is selected for all three zones belonging to the rear wall 7b, and the intermediate controller 36b stores the panels of all the reverberation adjusters 9 via the drivers 35 of the respective zones, and makes them fully open. The right wall 7c and the left wall 7
When a pattern in which only the left and right zones are opened is selected for d, the intermediate controller 36c and the intermediate controller 36d fully open the left and right of the zones belonging to the right wall 7c and the left wall 7d, that is, to the left and right zones. The reverberation adjustment device 9 belonging to the device is fully opened via the intermediate controller 36c and the intermediate controller 36d.

Incidentally, the arbitrary pattern is, for example, that the inside of the four reverberation adjusting devices 9 belonging to the zone is fully opened, and the two reverberation adjusting devices 9 at the center are fully closed. As described above, two arbitrary patterns can be set, and by incorporating the two patterns, finer reverberation adjustment can be performed. Furthermore, since the pattern control is used, the control program and the control sequence are extremely simple, the control circuit and the like are completed, the production cost is reduced, and the operation for performing the reverberation control is performed by selecting the pattern. Since no special knowledge is required, anyone can operate the apparatus. Further, if the state of pattern control is displayed on a panel or the like, the state of reverberation adjustment can be recognized at a glance.

Further, since the pattern control is performed for each zone, the reverberation adjusting device 9 of each zone is driven at a time, and the operation of the reverberation adjustment is completed in a short time.

Further, the reverberation control device 9 is provided in the form of reverberation control.
Change of the state of opening and closing of itself, for example,
When the storage of the sound absorbing panels 24 is stopped halfway in the two reverberation adjusting devices 9, the number of stored sound absorbing panels 24 is adjusted, and the reflection plate 8 covered by one reverberation adjusting device 9 is partially exposed.
A wide range and ultimately diverse reverberation control becomes possible.

[0030]

As described above, according to the present invention, it is possible to easily change the reverberation effect to a desired state in a short time and to select a pattern by operating a button on the operation panel. Workability is remarkably excellent. Further, since the zone control is used, the control mode is simplified, the control system is extremely simple, and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention.

FIG. 2 is a plan sectional view of the first embodiment.

FIG. 3 is a front view of the first embodiment.

FIGS. 4A, 4B, and 4C are explanatory diagrams of the operation of the first embodiment.

FIG. 5 is an explanatory diagram of a conventional example.

FIG. 6 is an explanatory diagram of another conventional example.

[Explanation of symbols]

 Reference Signs List 6 wall device 7 wall 8 reflector 9 reverberation adjuster 10 screen 14 panel housing 24 sound absorbing panel 30 entertainment space 35 driver 36a intermediate controller 36b intermediate controller 36c intermediate controller 36d intermediate controller 37 main controller 38 operation Board

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁷ identification code FI G10K 11/16 G10K 11/16 DG (56) References JP-A-3-287945 (JP, A) JP-A-6-63251 (JP, A) JP-A-7-248775 (JP, A) JP-A-3-99105 (JP, U) JP-A-62-144304 (JP, U)

Claims (2)

(57) [Claims] 1. A wall defining an entertainment space, a plurality of reverberation adjusting devices capable of moving up and down and storing a required number of connected sound absorbing panels provided inside the wall and a plurality of the reverberation adjusting devices. A reverberation control device, comprising: a control device that divides the panel into a plurality of zones and controls a panel elevating state according to a preset pattern for each zone. 2. A plurality of reverberation adjustment devices belong to each zone, and each of the reverberation adjustment devices is opened and closed in two modes, fully closed and fully open, and all reverberation adjustment devices belonging to the zone are fully closed or fully open. Two patterns to be set and at least one pattern determined according to the number of fully opened reverberation adjusting devices,
The reverberation control device according to claim 1, wherein the reverberation adjustment is performed by selecting the pattern for each zone.