GB2012520A - Loudspeaker - Google Patents
LoudspeakerInfo
- Publication number
- GB2012520A GB2012520A GB7900188A GB7900188A GB2012520A GB 2012520 A GB2012520 A GB 2012520A GB 7900188 A GB7900188 A GB 7900188A GB 7900188 A GB7900188 A GB 7900188A GB 2012520 A GB2012520 A GB 2012520A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- ring
- former
- magnet system
- magnet
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
A magnet system 4 defines an annular gap in which a coil 15 is mounted to move axially in the magnetic field. A former 16 for the coil is attached to a funnel-shaped diaphragm 18 which is mounted at its outer edge by a flexible ring 21 secured to a frame 2. In the region of the attachment point of the coil former, a first corrugated ring 19 attaches it to the magnet system 4 and in order to achieve greater security against tilting of the coil 15, there is provided at an axial distance from the plane of the first ring 19, a further corrugated ring 23, which is connected at least substantially rigidly to the coil former and to the magnet. Ring 23 may alternatively lie at a rearward extension of the coil former. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782801137 DE2801137A1 (en) | 1978-01-12 | 1978-01-12 | SPEAKER |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2012520A true GB2012520A (en) | 1979-07-25 |
GB2012520B GB2012520B (en) | 1982-05-26 |
Family
ID=6029330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7900188A Expired GB2012520B (en) | 1978-01-12 | 1979-01-03 | Speaker |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2801137A1 (en) |
FR (1) | FR2414842A1 (en) |
GB (1) | GB2012520B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0039740A1 (en) * | 1979-11-09 | 1981-11-18 | Matsushita Electric Industrial Co., Ltd. | Loud-speaker |
WO1983001884A1 (en) * | 1981-11-17 | 1983-05-26 | Tiefenbrun, Ivor, Sigmund | Loudspeaker assembly |
EP0270981A2 (en) * | 1986-12-06 | 1988-06-15 | EWD Electronic-Werke Deutschland GmbH | Loudspeaker |
CN104141521A (en) * | 2013-05-08 | 2014-11-12 | 埃贝施佩歇尔排气技术有限及两合公司 | Sound generator for an anti-noise system for influencing exhaust noises and/or intake noises of a motor vehicle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3309617A1 (en) * | 1983-03-17 | 1984-09-20 | Oskar 6837 St Leon-Rot Knecht | Electro-acoustic transducer |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB163727A (en) * | 1919-08-13 | 1921-06-02 | William Travis | Improvements in electrical resistance elements |
US1966564A (en) * | 1928-04-05 | 1934-07-17 | Schlenker Vesper Anderson | Dynamic sound reproducer |
DE833512C (en) * | 1950-05-07 | 1952-03-10 | Mix & Genest A G | Bracket for piston oscillator |
FR1180456A (en) * | 1957-08-01 | 1959-06-04 | Electro-dynamic speaker | |
US2998496A (en) * | 1958-04-29 | 1961-08-29 | Joseph A Hassan | Loudspeaker construction |
US3112375A (en) * | 1960-01-20 | 1963-11-26 | Mechanies For Electronic Inc | Loudspeaker construction |
GB934995A (en) * | 1961-05-16 | 1963-08-21 | Goodmans Ind Ltd | Improvements in loudspeakers |
US4013846A (en) * | 1975-08-28 | 1977-03-22 | Minnesota Mining And Manufacturing Company | Piston loudspeaker |
GB1563511A (en) * | 1976-03-19 | 1980-03-26 | Harwood H | Diaphragms for electroacoustic transducers |
-
1978
- 1978-01-12 DE DE19782801137 patent/DE2801137A1/en not_active Ceased
-
1979
- 1979-01-03 GB GB7900188A patent/GB2012520B/en not_active Expired
- 1979-01-11 FR FR7900645A patent/FR2414842A1/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0039740A1 (en) * | 1979-11-09 | 1981-11-18 | Matsushita Electric Industrial Co., Ltd. | Loud-speaker |
EP0039740A4 (en) * | 1979-11-09 | 1982-04-22 | Matsushita Electric Ind Co Ltd | Loud-speaker. |
WO1983001884A1 (en) * | 1981-11-17 | 1983-05-26 | Tiefenbrun, Ivor, Sigmund | Loudspeaker assembly |
EP0270981A2 (en) * | 1986-12-06 | 1988-06-15 | EWD Electronic-Werke Deutschland GmbH | Loudspeaker |
EP0270981A3 (en) * | 1986-12-06 | 1990-05-16 | EWD Electronic-Werke Deutschland GmbH | Loudspeaker |
CN104141521A (en) * | 2013-05-08 | 2014-11-12 | 埃贝施佩歇尔排气技术有限及两合公司 | Sound generator for an anti-noise system for influencing exhaust noises and/or intake noises of a motor vehicle |
US9374632B2 (en) | 2013-05-08 | 2016-06-21 | Eberspächer Exhaust Technology GmbH & Co. KG | Sound generator for an anti-noise system for influencing exhaust noises and/or intake noises of a motor vehicle |
CN104141521B (en) * | 2013-05-08 | 2017-05-24 | 埃贝施佩歇尔排气技术有限及两合公司 | Sound generator for an anti-noise system for influencing exhaust noises and/or intake noises of a motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
FR2414842B1 (en) | 1981-03-27 |
DE2801137A1 (en) | 1979-07-19 |
FR2414842A1 (en) | 1979-08-10 |
GB2012520B (en) | 1982-05-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5525285A (en) | Speaker | |
FR2443784A1 (en) | Electromechanical transducer for AF signals - has damping piece in plane of air gap in which coil moves through magnetic field | |
EP0735795A3 (en) | Surroundless loudspeaker | |
ES481216A1 (en) | (S) alpha -Cyano-3-phenoxy-benzyl alcohol | |
GB2282024A (en) | Loudspeaker | |
GB2012520A (en) | Loudspeaker | |
DK0542367T3 (en) | grommets | |
FR2305079A1 (en) | PRIMARY SIGNAL ADJUSTMENT MOUNTING CONTROLLING THE IMAGE TUBE OF A COLOR TELEVISION | |
GB2010421A (en) | Rotor Construction for Electromagnetic Coupling | |
SE8207483D0 (en) | DOME-TYPE MOVING COIL DRIVER FOR LOUDSPEAKER AND DIAPHRAGM THEREFOR | |
JPS53137625A (en) | York assembly for image tube | |
AU2700584A (en) | Preparation of acemetacin | |
JPS53131826A (en) | Photographing system for photograph data of camera | |
GB1451169A (en) | Omnidirectional loudspeaker | |
GB2292651A (en) | Loudspeaker with short circuit rings at the voice coil | |
JPS554869A (en) | Deflection yoke assembly for camera tube | |
GB1132579A (en) | Electroacoustic transducers | |
JPS5443411A (en) | Scanning head positioning system | |
JPS5424638A (en) | Magnetic brush developing device | |
GB2015300A (en) | Moving coil loudspeakers | |
JPS5388516A (en) | Deflection yoke | |
JPS5652846A (en) | Electrostatically focusing and electromagnetically deflecting image pick-up tube | |
JPS5350852A (en) | Half tone image forming optical system | |
JPS53102041A (en) | Making exposure for electrophotographic copier | |
JPS5398074A (en) | Cord reel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930103 |