GB2186761B - Cone loudspeakers - Google Patents
Cone loudspeakersInfo
- Publication number
- GB2186761B GB2186761B GB8703315A GB8703315A GB2186761B GB 2186761 B GB2186761 B GB 2186761B GB 8703315 A GB8703315 A GB 8703315A GB 8703315 A GB8703315 A GB 8703315A GB 2186761 B GB2186761 B GB 2186761B
- Authority
- GB
- United Kingdom
- Prior art keywords
- dome
- cone
- stiff
- central
- cone loudspeakers
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
In a cone loudspeaker having a central dome (14), an annular cone (10) around the dome, and a voice coil (18), the central dome (14) is made mechanically strong and axially stiff and is an acoustic radiator in its own right. The dome (14) is preferably also radially stiff and its radial stiffness may be enhanced by a circumferential reinforcing ring. The dome is preferably hemispherical and may be made of aluminium, titanium or fibre-reinforced plastics materials.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB868603645A GB8603645D0 (en) | 1986-02-14 | 1986-02-14 | Loudspeakers |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8703315D0 GB8703315D0 (en) | 1987-03-18 |
GB2186761A GB2186761A (en) | 1987-08-19 |
GB2186761B true GB2186761B (en) | 1989-11-08 |
Family
ID=10593050
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB868603645A Pending GB8603645D0 (en) | 1986-02-14 | 1986-02-14 | Loudspeakers |
GB8703315A Expired GB2186761B (en) | 1986-02-14 | 1987-02-13 | Cone loudspeakers |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB868603645A Pending GB8603645D0 (en) | 1986-02-14 | 1986-02-14 | Loudspeakers |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0235991B1 (en) |
JP (1) | JPS62248398A (en) |
AT (1) | ATE98081T1 (en) |
CA (1) | CA1292307C (en) |
DE (1) | DE3788293T2 (en) |
ES (1) | ES2048733T3 (en) |
GB (2) | GB8603645D0 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES292736Y (en) * | 1986-03-05 | 1987-03-01 | Plastmetal, S.A. | DYNAMIC ALARM SPEAKER PERFECTED |
EP0644706B1 (en) * | 1993-09-22 | 2002-08-14 | Sony Corporation | Horn speaker system |
DE4419249A1 (en) * | 1994-06-01 | 1995-12-07 | Nokia Deutschland Gmbh | speaker |
JP3555505B2 (en) * | 1999-06-16 | 2004-08-18 | 株式会社村田製作所 | Speaker |
GB2359213B (en) * | 1999-10-29 | 2004-05-19 | Kef Audio | High frequency transducer |
EP1658753B1 (en) * | 2003-08-22 | 2012-05-23 | PSS Belgium NV | Loudspeaker having a composite diaphragm structure |
JP2005168001A (en) * | 2003-11-13 | 2005-06-23 | Matsushita Electric Ind Co Ltd | Tweeter |
WO2005048651A1 (en) * | 2003-11-13 | 2005-05-26 | Matsushita Electric Industrial Co., Ltd. | Tweeter |
US20100177925A1 (en) * | 2006-05-24 | 2010-07-15 | Pioneer Corporation | Speaker Device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1563511A (en) * | 1976-03-19 | 1980-03-26 | Harwood H | Diaphragms for electroacoustic transducers |
GB2070390A (en) * | 1980-02-21 | 1981-09-03 | Rank Organisation Ltd | Loudspeaker diaphragm |
GB2099660A (en) * | 1981-05-26 | 1982-12-08 | Celestion Int Ltd | Radiating domes for loudspeakers |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5039925A (en) * | 1973-08-15 | 1975-04-12 | ||
JPS51120711A (en) * | 1975-04-15 | 1976-10-22 | Hokuto Onkyo Kk | Speaker |
JPS5921881Y2 (en) * | 1979-07-13 | 1984-06-29 | 日立金属株式会社 | magnetic sorter |
JPS5634297A (en) * | 1979-08-29 | 1981-04-06 | Kenzo Inoue | Speaker unit |
NL8204839A (en) * | 1982-01-04 | 1983-08-01 | Jensen Int Inc | ELECTRO-DYNAMIC ACTUATOR FOR A SPEAKER AND ACCOMPANYING MEMBRANE. |
US4531608A (en) * | 1982-10-29 | 1985-07-30 | Heinz Harro K | High frequency compression driver |
GB8325298D0 (en) * | 1983-09-21 | 1983-10-26 | Tannoy Ltd | Direct radiator loudspeaker |
GB2160741B (en) * | 1984-04-24 | 1988-04-27 | Wharfedale Loudspeaker | Moving-coil loudspeaker drive unit |
-
1986
- 1986-02-14 GB GB868603645A patent/GB8603645D0/en active Pending
-
1987
- 1987-02-13 DE DE3788293T patent/DE3788293T2/en not_active Expired - Fee Related
- 1987-02-13 ES ES87301271T patent/ES2048733T3/en not_active Expired - Lifetime
- 1987-02-13 CA CA000529745A patent/CA1292307C/en not_active Expired - Fee Related
- 1987-02-13 GB GB8703315A patent/GB2186761B/en not_active Expired
- 1987-02-13 EP EP87301271A patent/EP0235991B1/en not_active Expired - Lifetime
- 1987-02-13 AT AT87301271T patent/ATE98081T1/en not_active IP Right Cessation
- 1987-02-14 JP JP62030710A patent/JPS62248398A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1563511A (en) * | 1976-03-19 | 1980-03-26 | Harwood H | Diaphragms for electroacoustic transducers |
GB2070390A (en) * | 1980-02-21 | 1981-09-03 | Rank Organisation Ltd | Loudspeaker diaphragm |
GB2099660A (en) * | 1981-05-26 | 1982-12-08 | Celestion Int Ltd | Radiating domes for loudspeakers |
Non-Patent Citations (1)
Title |
---|
WO A1 82/00744 * |
Also Published As
Publication number | Publication date |
---|---|
GB8603645D0 (en) | 1986-03-19 |
DE3788293D1 (en) | 1994-01-13 |
EP0235991A3 (en) | 1989-05-24 |
JPS62248398A (en) | 1987-10-29 |
ES2048733T3 (en) | 1994-04-01 |
DE3788293T2 (en) | 1994-06-23 |
GB8703315D0 (en) | 1987-03-18 |
EP0235991B1 (en) | 1993-12-01 |
CA1292307C (en) | 1991-11-19 |
EP0235991A2 (en) | 1987-09-09 |
ATE98081T1 (en) | 1993-12-15 |
GB2186761A (en) | 1987-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950213 |