JPS57190496A - Loudspeaker - Google Patents
LoudspeakerInfo
- Publication number
- JPS57190496A JPS57190496A JP7521181A JP7521181A JPS57190496A JP S57190496 A JPS57190496 A JP S57190496A JP 7521181 A JP7521181 A JP 7521181A JP 7521181 A JP7521181 A JP 7521181A JP S57190496 A JPS57190496 A JP S57190496A
- Authority
- JP
- Japan
- Prior art keywords
- enclosed space
- bobbin
- vibration
- diaphragm
- elastic substance
- 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
- 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)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
PURPOSE:To constitute so that no air in an enclosed space leaks even in case of vibration fatigue, by constituting an elastic substance forming a part of the enclosed space, of rubber, in a loudspeaker which uses the enclosed space as a mechanical filter. CONSTITUTION:When a bobbin 7 vibrates slowly, this vibration is transmitted to a diaphragm 2 through an enclosed space, but when the bobbin 7 vibrates quickly, expansion and contraction of the enclosed space comes not to follow a movement of the bobbin 7 and vibration of the bobbin 7 comes not to be transmitted to the diaphragm 2, therefore, the function being equivalent to a low-pass filter is realized. In this case, if rubber is used as an elastic substance 4, no air leaks even in case of vibration fatigue unless the elastic substance 4 itself is detached from a sub-diaphragm 5 or a coupler ring 14, and prescribed gas elasticity is always obtained. Also, the elastic breakdown can be prevented by laminating woven fabric on the reverse side of the elastic substance 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7521181A JPS57190496A (en) | 1981-05-18 | 1981-05-18 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7521181A JPS57190496A (en) | 1981-05-18 | 1981-05-18 | Loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57190496A true JPS57190496A (en) | 1982-11-24 |
| JPS6234319B2 JPS6234319B2 (en) | 1987-07-25 |
Family
ID=13569632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7521181A Granted JPS57190496A (en) | 1981-05-18 | 1981-05-18 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57190496A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7809148B2 (en) | 2006-06-01 | 2010-10-05 | Jason Myles Cobb | Loudspeaker |
| US7848533B2 (en) | 2006-11-13 | 2010-12-07 | Jason Myles Cobb | Loudspeaker |
| KR101074248B1 (en) | 2010-07-26 | 2011-10-14 | 포스터 덴키 가부시키가이샤 | Speaker unit |
-
1981
- 1981-05-18 JP JP7521181A patent/JPS57190496A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7809148B2 (en) | 2006-06-01 | 2010-10-05 | Jason Myles Cobb | Loudspeaker |
| US7848533B2 (en) | 2006-11-13 | 2010-12-07 | Jason Myles Cobb | Loudspeaker |
| KR101074248B1 (en) | 2010-07-26 | 2011-10-14 | 포스터 덴키 가부시키가이샤 | Speaker unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6234319B2 (en) | 1987-07-25 |
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