GB1069120A - Improvements relating to the securing of members within a support member - Google Patents
Improvements relating to the securing of members within a support memberInfo
- Publication number
- GB1069120A GB1069120A GB3573664A GB3573664A GB1069120A GB 1069120 A GB1069120 A GB 1069120A GB 3573664 A GB3573664 A GB 3573664A GB 3573664 A GB3573664 A GB 3573664A GB 1069120 A GB1069120 A GB 1069120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frame
- indentations
- sept
- pot
- securing
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- 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
-
- 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
- H04R9/025—Magnetic circuit
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
1,069,120. Loudspeakers. PHILIPS ELECTRICAL & ASSOCIATED INDUSTRIES Ltd. Sept. 1, 1964 [Sept. 2, 1963], No. 35736/64. Heading H4J. In a moving coil loudspeaker, a soft magnetic plate 13 and pot 12 are held rigidly together by one or more indentations 10 formed in a generally frusto-conical frame 16. Conical part (12<SP>1</SP>), Fig. 2 (not shown), has an apical angle (α) a little smaller than the apical angle (#) of the frame part (16<SP>1</SP>) to assist in providing a rigid assembly. In manufacture, the frame 16 is placed on a press and the pot 12 and plate 13 are then placed in position. Grooves or other indentations 10 are then made with four or six different balls. The loudspeaker includes a central magnet 13 which is secured by adhesive or a brass centring ring either before the formation of the indentations or subsequently. The frame 16 is of aluminium coated with plastics material or is of extruded plastics.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR946305A FR1375202A (en) | 1963-09-02 | 1963-09-02 | Attachment of stacked parts, especially parts of a loudspeaker |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1069120A true GB1069120A (en) | 1967-05-17 |
Family
ID=8811564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3573664A Expired GB1069120A (en) | 1963-09-02 | 1964-09-01 | Improvements relating to the securing of members within a support member |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE1437423A1 (en) |
DK (1) | DK114707B (en) |
ES (1) | ES303632A1 (en) |
FR (1) | FR1375202A (en) |
GB (1) | GB1069120A (en) |
NL (1) | NL6409914A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015124437A1 (en) * | 2014-02-19 | 2015-08-27 | Harman Becker Automotive Systems Gmbh | Loudspeaker |
GB2554799A (en) * | 2016-08-26 | 2018-04-11 | Tymphany Hk Ltd | Loudspeaker structure |
-
1963
- 1963-09-02 FR FR946305A patent/FR1375202A/en not_active Expired
-
1964
- 1964-08-27 NL NL6409914A patent/NL6409914A/xx unknown
- 1964-08-29 DK DK427964A patent/DK114707B/en unknown
- 1964-08-31 ES ES0303632A patent/ES303632A1/en not_active Expired
- 1964-09-01 GB GB3573664A patent/GB1069120A/en not_active Expired
- 1964-09-01 DE DE19641437423 patent/DE1437423A1/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015124437A1 (en) * | 2014-02-19 | 2015-08-27 | Harman Becker Automotive Systems Gmbh | Loudspeaker |
US10015611B2 (en) | 2014-02-19 | 2018-07-03 | Harman Becker Automotive Systems Gmbh | Loudspeaker |
GB2554799A (en) * | 2016-08-26 | 2018-04-11 | Tymphany Hk Ltd | Loudspeaker structure |
GB2554799B (en) * | 2016-08-26 | 2020-04-22 | Tymphany Hk Ltd | Loudspeaker structure |
Also Published As
Publication number | Publication date |
---|---|
FR1375202A (en) | 1964-10-16 |
ES303632A1 (en) | 1965-03-01 |
DE1437423A1 (en) | 1969-03-27 |
NL6409914A (en) | 1965-03-03 |
DK114707B (en) | 1969-07-28 |
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