JPS5238917A - Method of producing vibration board for speaker - Google Patents

Method of producing vibration board for speaker

Info

Publication number
JPS5238917A
JPS5238917A JP50115196A JP11519675A JPS5238917A JP S5238917 A JPS5238917 A JP S5238917A JP 50115196 A JP50115196 A JP 50115196A JP 11519675 A JP11519675 A JP 11519675A JP S5238917 A JPS5238917 A JP S5238917A
Authority
JP
Japan
Prior art keywords
speaker
vibration board
producing vibration
flame retarding
agent
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
Application number
JP50115196A
Other languages
Japanese (ja)
Other versions
JPS5750399B2 (en
Inventor
Masahiro Saito
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP50115196A priority Critical patent/JPS5238917A/en
Publication of JPS5238917A publication Critical patent/JPS5238917A/en
Publication of JPS5750399B2 publication Critical patent/JPS5750399B2/ja
Granted legal-status Critical Current

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

Abstract

PURPOSE:To make the treatment process simple and to add desirable flame retarding and waterproof properties simultaneously by treating the vibration board for the speaker(which consists of a natural cellulose system fiber), with a mixture of a water soluble flame retarding agent and a silicone system waterproof agent.
JP50115196A 1975-09-23 1975-09-23 Method of producing vibration board for speaker Granted JPS5238917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50115196A JPS5238917A (en) 1975-09-23 1975-09-23 Method of producing vibration board for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50115196A JPS5238917A (en) 1975-09-23 1975-09-23 Method of producing vibration board for speaker

Publications (2)

Publication Number Publication Date
JPS5238917A true JPS5238917A (en) 1977-03-25
JPS5750399B2 JPS5750399B2 (en) 1982-10-27

Family

ID=14656724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50115196A Granted JPS5238917A (en) 1975-09-23 1975-09-23 Method of producing vibration board for speaker

Country Status (1)

Country Link
JP (1) JPS5238917A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49142298U (en) * 1973-04-05 1974-12-07
JPH0344997U (en) * 1989-09-06 1991-04-25
US6561380B1 (en) 1999-08-27 2003-05-13 Fuji Electric Co., Ltd. Product delivery device of vending machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49142298U (en) * 1973-04-05 1974-12-07
JPH0344997U (en) * 1989-09-06 1991-04-25
US6561380B1 (en) 1999-08-27 2003-05-13 Fuji Electric Co., Ltd. Product delivery device of vending machine

Also Published As

Publication number Publication date
JPS5750399B2 (en) 1982-10-27

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