JPS6279081A - Reverbaration time variable apparatus capable of adjusting frequency characteristics of sound in room - Google Patents
Reverbaration time variable apparatus capable of adjusting frequency characteristics of sound in roomInfo
- Publication number
- JPS6279081A JPS6279081A JP60219214A JP21921485A JPS6279081A JP S6279081 A JPS6279081 A JP S6279081A JP 60219214 A JP60219214 A JP 60219214A JP 21921485 A JP21921485 A JP 21921485A JP S6279081 A JPS6279081 A JP S6279081A
- Authority
- JP
- Japan
- Prior art keywords
- sound
- frequency characteristics
- sound absorbing
- adjusting
- time variable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はホール等の室内音場における周波数特性が調整
できる残響時間可変装置に係るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a reverberation time variable device capable of adjusting frequency characteristics in an indoor sound field such as a hall.
（従来の技術〕
室内音場は演し物により、必要な残響時間や周波数特性
が異なる。また満席、空席によっても残響時間や周波数
特性に相違がある。(Prior Art) In an indoor sound field, the required reverberation time and frequency characteristics differ depending on the performance.The reverberation time and frequency characteristics also differ depending on whether the seats are full or empty.
従来、室内音場の残響時間の可変のためには、天井面か
壁面に暮秋の可変物が設置されていた。Conventionally, in order to vary the reverberation time of an indoor sound field, a late-autumn variable device was installed on the ceiling or wall.
（発明が解決しようとする問題点）
しかしながら前記従来の装置は、周波数特性の改善の点
については十分でなかった。(Problems to be Solved by the Invention) However, the conventional device described above was not sufficient in terms of improving frequency characteristics.
（問題点を解決するだめの手段）
本発明はこの：うな問題点を解決するために提案された
もので、室内音場の天井、壁面に列設された各−状区画
における吸音材の配設された吸音面に、吸音面の開口面
積調整用可動遮蔽板を配置するとともに、前記各−状区
画内に前記吸音材と直角方向に摺動する移動板を配設し
てなることを特徴とする室内音場の周波数特性が調整で
きる残響時間可変装置に係るものである。(Means for Solving the Problem) The present invention was proposed to solve the following problem. A movable shielding plate for adjusting the opening area of the sound-absorbing surface is arranged on the provided sound-absorbing surface, and a movable plate that slides in a direction perpendicular to the sound-absorbing material is arranged in each of the --shaped sections. This invention relates to a reverberation time variable device that can adjust the frequency characteristics of an indoor sound field.
（作用） ゛
本発明は前記したように構成されているので、室内音場
の天井、壁面に配置され九−状区画の吸音面に配設され
た吸音材と直角方向に亘って同一状区画内に移動板を摺
動せしめ、凾状区画内の吸音材とその背後空気層との間
隔を調節することによって、周波数特性を調整しうるも
のである。(Function) ゛Since the present invention is configured as described above, the sound absorbing material disposed on the ceiling and wall of the indoor sound field and arranged on the sound absorbing surface of the nine-shaped section has the same shape in the direction perpendicular to it. The frequency characteristics can be adjusted by sliding a movable plate inside the box and adjusting the distance between the sound absorbing material in the box-shaped section and the air layer behind it.
また前記各凶状区画の吸音面に配置された可動遮蔽板に
よって、前記吸音面の開口面積を調整することＫよって
吸音率を変え、残響時間を調整しうるものである。Furthermore, by adjusting the opening area of the sound absorbing surface using a movable shielding plate placed on the sound absorbing surface of each of the damaged sections, the sound absorption coefficient can be changed and the reverberation time can be adjusted.
（発明の効果）
このように本発明によれば室内音場の残響時間の周波数
特性の調整が可能となり、演し物、室内音場内の席の状
態に応じて、必要な残響時間、周波数特性が確保される
ものである。(Effects of the Invention) According to the present invention, it is possible to adjust the frequency characteristics of the reverberation time of an indoor sound field, and the necessary reverberation time and frequency characteristics can be adjusted according to the performance and the condition of the seats in the indoor sound field. is ensured.
（実施例） 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
（１）は室内音場の天井面に配設された凶状区画、（２
）は取付金具で、凶状区画（１）の吸音面ＶＣは吸音材
（３）が装架され、−状区画（１）の吸音面の開口面は
適当な大きさに仕切られ、各仕切部には夫々開口面積調
整用の可動遮蔽材（４）が配設されている。(1) is a bad section placed on the ceiling of an indoor sound field, (2)
) is a mounting bracket, the sound absorbing surface VC of the bad section (1) is mounted with sound absorbing material (3), the opening surface of the sound absorbing surface of the negative section (1) is partitioned into appropriate sizes, and each partition is A movable shielding member (4) for adjusting the opening area is provided at each of the openings.
同可動遮蔽材（４）は形状記憶合金よフ構成され、熱線
（５）が組込まれ同熱線に通電することによって加温さ
れ、各仕切区分毎に開閉して吸音面の開口面積を調整す
るように構成されている。The movable shielding material (4) is made of shape memory alloy, has a built-in heating wire (5), is heated by energizing the heating wire, and opens and closes for each partition section to adjust the opening area of the sound absorption surface. It is configured as follows.
図中（６）は制御器、（７）はスイッチである。In the figure, (6) is a controller, and (7) is a switch.
また前記凶状区画（１）内の底部及び上部に配設された
軸受支え（８）（８つに支持された軸受（９１（９’）
間に、モータ（ｌｏｔによって駆動回転される螺旋シャ
フト（１１）が装架され、同シャフト（Ｉｆ）に鋼板、
木製合板、石綿板等の如き遮音性に優れ音響上の使用範
囲で共鳴しない材料等より構成された底板α２が螺挿さ
れている。図中（１３）は同底板（１３の両端に配設さ
れた凶状区画（１）の内周面に沿って摺動するスライダ
兼パツキンである。In addition, bearing supports (8) (bearings supported by eight bearings (91 (9')
A helical shaft (11) driven and rotated by a motor (lot) is installed in between, and a steel plate,
A bottom plate α2 made of a material such as wooden plywood, asbestos board, etc., which has excellent sound insulation properties and does not resonate in the acoustic range of use, is screwed into the bottom plate α2. In the figure, (13) is a slider/packet that slides along the inner peripheral surface of the damaged section (1) provided at both ends of the bottom plate (13).
その他α４ （１４’）は底板α２の移動を制御するリ
ミタ、Ｑ５１は制御器、αｅはスイッチである。In addition, α4 (14') is a limiter that controls the movement of the bottom plate α2, Q51 is a controller, and αe is a switch.
図示の実施例は前記したように構成されているので、モ
ータαＱによって螺旋シャフトＱｌ）を駆動回転し同シ
ャフトαυに螺挿された底板Ｑ２ｔして凶状区画（１）
内を上下せしめ、吸音材（３）層と、背後窒気層との間
隔を調整することによって周波数特性が調整される。Since the illustrated embodiment is configured as described above, the motor αQ drives and rotates the helical shaft Ql), and the bottom plate Q2t screwed into the shaft αυ is connected to the damaged section (1).
The frequency characteristics are adjusted by adjusting the distance between the sound absorbing material (3) layer and the rear nitrogen layer.
また前記凶状区画（１）の開口面を遮蔽する適当な大き
さに仕切られた形状記憶合金製の可動遮蔽材（４７に組
込まれた熱線に各区分毎に通電することによって、同遮
蔽材（４）を加温して第３図及び第５図の点線に示すよ
うに各区分毎に開閉して、吸音面の開口面積を調整し、
吸音率を調節することに二って残響時間を調整するもの
である。In addition, by energizing the heat wire incorporated in the shape memory alloy movable shielding material (47) divided into appropriate sizes to shield the opening surface of the aforesaid section (1), the same shielding material (47) is energized for each section. 4) by heating and opening and closing each section as shown by the dotted lines in Figures 3 and 5 to adjust the opening area of the sound absorption surface,
In addition to adjusting the sound absorption coefficient, the reverberation time is also adjusted.
なお前記−状区画（１）は室内音場の天井面のみならず
、壁面にも配設されるものである。Note that the --shaped section (1) is arranged not only on the ceiling surface of the indoor sound field but also on the wall surface.
このように図示の実施例に↓れば、室内音場の残響時間
及び周波数特性を演し物、客席の状態に応じて調整しつ
るものである。According to the illustrated embodiment, the reverberation time and frequency characteristics of the indoor sound field can be adjusted according to the performance and the conditions of the audience seats.
以上本発明を実施例について説明したが、本発明は勿論
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で種々の設計の改変を施し
うるものである。Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and can be modified in various ways without departing from the spirit of the present invention. .
第１図は本発明に係る室内音場の周波数特性が調整でき
る残響時間可変装置の一実施例を示す縦断面図、第２図
はその平面図、第３図は第２図の矢視■−■図、第４図
は本発明の他の実施例を示す部分平面図、第５図はその
部分縦断面図である。FIG. 1 is a longitudinal sectional view showing an embodiment of the reverberation time variable device according to the present invention that can adjust the frequency characteristics of an indoor sound field, FIG. 2 is a plan view thereof, and FIG. Figures -■ and 4 are partial plan views showing other embodiments of the present invention, and Figure 5 is a partial vertical sectional view thereof.
Claims (1)
吸音材の配設された吸音面に、吸音面の開口面積調整用
可動遮蔽板を配置するとともに、前記各凾状区画内に前
記吸音材と直角方向に摺動する移動板を配設してなるこ
とを特徴とする室内音場の周波数特性が調整できる残響
時間可変装置。A movable shielding plate for adjusting the opening area of the sound absorbing surface is arranged on the sound absorbing surface on which the sound absorbing material is arranged in each of the conical sections arranged in rows on the ceiling and wall surface of the indoor sound field, and a movable shielding plate for adjusting the opening area of the sound absorbing surface is arranged. A reverberation time variable device capable of adjusting the frequency characteristics of an indoor sound field, comprising a moving plate that slides in a direction perpendicular to the sound absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60219214A JPS6279081A (en) | 1985-10-03 | 1985-10-03 | Reverbaration time variable apparatus capable of adjusting frequency characteristics of sound in room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60219214A JPS6279081A (en) | 1985-10-03 | 1985-10-03 | Reverbaration time variable apparatus capable of adjusting frequency characteristics of sound in room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6279081A true JPS6279081A (en) | 1987-04-11 |
| JPH0340775B2 JPH0340775B2 (en) | 1991-06-20 |
Family
ID=16731992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60219214A Granted JPS6279081A (en) | 1985-10-03 | 1985-10-03 | Reverbaration time variable apparatus capable of adjusting frequency characteristics of sound in room |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6279081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001265355A (en) * | 2000-01-24 | 2001-09-28 | Eads Deutschland Gmbh | Sound absorbing device and sound absorbing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6222698U (en) * | 1985-07-25 | 1987-02-10 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55117537A (en) * | 1979-02-28 | 1980-09-09 | Asahi Seiki Kogyo Kk | Method and apparatus for continuous, automatic formation of coil spring having hook at both ends |
-
1985
- 1985-10-03 JP JP60219214A patent/JPS6279081A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6222698U (en) * | 1985-07-25 | 1987-02-10 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001265355A (en) * | 2000-01-24 | 2001-09-28 | Eads Deutschland Gmbh | Sound absorbing device and sound absorbing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0340775B2 (en) | 1991-06-20 |
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