EP0139765A4 - Sound-adjusting plate. - Google Patents
Sound-adjusting plate.Info
- Publication number
- EP0139765A4 EP0139765A4 EP19840901403 EP84901403A EP0139765A4 EP 0139765 A4 EP0139765 A4 EP 0139765A4 EP 19840901403 EP19840901403 EP 19840901403 EP 84901403 A EP84901403 A EP 84901403A EP 0139765 A4 EP0139765 A4 EP 0139765A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound
- sheet
- speaker unit
- roll cores
- absorbed
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Building Environments (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
A sound-adjusting plate constituted by a member with a hollow laminated structure. This plate can be employed as a support for a speaker unit, or it can be provided behind a speaker unit to absorb or dampen the sound energy coming from the speaker unit, to reduce any adverse effects due to the sound. For this purpose, paper roll cores (11) are used as a core material, and the surface of the openings (14) thereof on one side is covered with a porous cover sheet (12) such as a napped cloth, a flocked cloth, or felt, while the surface (15) of the other openings thereof is covered with a sheet (13) which is impermeable to air, such as lead sheeting or a plastic sheet containing iron powder. Sound within the treble region is absorbed by the porous cover sheet (12), while sounds in the middle and bass regions are absorbed by cells (18) and gaps (19) formed by the roll cores (11). Both the roll cores (11) and the impermeable sheet (13) act as vibration dampers to prevent the propagation of vibrations due to low-pitched sounds to the walls or floor.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP46158/83U | 1983-03-30 | ||
JP4615883U JPS59156300U (en) | 1983-03-30 | 1983-03-30 | acoustic adjustment board |
JP3223684U JPS60143496U (en) | 1984-03-05 | 1984-03-05 | acoustic adjustment board |
JP32236/83U | 1984-03-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0139765A1 EP0139765A1 (en) | 1985-05-08 |
EP0139765A4 true EP0139765A4 (en) | 1985-10-14 |
Family
ID=26370774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19840901403 Withdrawn EP0139765A4 (en) | 1983-03-30 | 1984-03-30 | Sound-adjusting plate. |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0139765A4 (en) |
WO (1) | WO1984003982A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3166149A (en) * | 1965-01-19 | Damped-resonator acoustical panels | ||
GB2056367A (en) * | 1979-07-06 | 1981-03-18 | Rohr Industries Inc | Process for producing improved noise attenuation panels |
US4379191A (en) * | 1975-08-13 | 1983-04-05 | Rohr Industries, Inc. | Honeycomb noise attenuation structure |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS486820Y1 (en) * | 1967-08-30 | 1973-02-21 | ||
CA956895A (en) * | 1970-12-18 | 1974-10-29 | American Cyanamid Company | Sound absorbing laminate |
JPS5124241Y2 (en) * | 1973-08-30 | 1976-06-22 | ||
JPS5338336Y2 (en) * | 1974-09-20 | 1978-09-18 | ||
JPS5152322Y2 (en) * | 1974-12-20 | 1976-12-15 | ||
JPS522401Y2 (en) * | 1975-03-11 | 1977-01-20 | ||
JPS5413301A (en) * | 1977-07-01 | 1979-01-31 | Shisutemu Reiauto Kk | Shield plate |
-
1984
- 1984-03-30 WO PCT/JP1984/000153 patent/WO1984003982A1/en not_active Application Discontinuation
- 1984-03-30 EP EP19840901403 patent/EP0139765A4/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3166149A (en) * | 1965-01-19 | Damped-resonator acoustical panels | ||
US4379191A (en) * | 1975-08-13 | 1983-04-05 | Rohr Industries, Inc. | Honeycomb noise attenuation structure |
GB2056367A (en) * | 1979-07-06 | 1981-03-18 | Rohr Industries Inc | Process for producing improved noise attenuation panels |
Non-Patent Citations (1)
Title |
---|
See also references of WO8403982A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1984003982A1 (en) | 1984-10-11 |
EP0139765A1 (en) | 1985-05-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19840925 |
|
AK | Designated contracting states |
Designated state(s): DE FR GB |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19861001 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MAYUMI, TOSHIOSHIN KOSHIGAYA SKY HEIGHTS 323 |