JPS64898A - Speaker - Google Patents

Speaker

Info

Publication number
JPS64898A
JPS64898A JP15585987A JP15585987A JPS64898A JP S64898 A JPS64898 A JP S64898A JP 15585987 A JP15585987 A JP 15585987A JP 15585987 A JP15585987 A JP 15585987A JP S64898 A JPS64898 A JP S64898A
Authority
JP
Japan
Prior art keywords
coil spring
damper
besides
diaphragm
resonance frequency
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.)
Pending
Application number
JP15585987A
Other languages
Japanese (ja)
Other versions
JPH01898A (en
Inventor
Kunio Iwai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62-155859A priority Critical patent/JPH01898A/en
Priority claimed from JP62-155859A external-priority patent/JPH01898A/en
Publication of JPS64898A publication Critical patent/JPS64898A/en
Publication of JPH01898A publication Critical patent/JPH01898A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To lower the lowest resonance frequency by constituting a vibration system of a damper, a cone edge and a coil spring.
CONSTITUTION: The support of a diaphragm is constituted of the damper 2 and the cone edge 1. Besides, by inserting the coil spring 3 which is made of metal and resin and has good restoration force around the circumference of the diaphragm 4, the exhaustion of the restoration force never occur, and in addition, the lowest resonance frequency can be lowered. Besides, an inherent resonance does not occur too much, and the distortion does not increase at the coil spring 3.
COPYRIGHT: (C)1989,JPO&Japio
JP62-155859A 1987-06-23 speaker Pending JPH01898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-155859A JPH01898A (en) 1987-06-23 speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-155859A JPH01898A (en) 1987-06-23 speaker

Publications (2)

Publication Number Publication Date
JPS64898A true JPS64898A (en) 1989-01-05
JPH01898A JPH01898A (en) 1989-01-05

Family

ID=

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122434B2 (en) * 1970-12-30 1976-07-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122434B2 (en) * 1970-12-30 1976-07-09

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