JPS5731295A - Speaker diaphragm - Google Patents

Speaker diaphragm

Info

Publication number
JPS5731295A
JPS5731295A JP10597880A JP10597880A JPS5731295A JP S5731295 A JPS5731295 A JP S5731295A JP 10597880 A JP10597880 A JP 10597880A JP 10597880 A JP10597880 A JP 10597880A JP S5731295 A JPS5731295 A JP S5731295A
Authority
JP
Japan
Prior art keywords
diaphragm
modulus
paper
young
propagation
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
JP10597880A
Other languages
Japanese (ja)
Inventor
Fumio Hayakawa
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.)
Onkyo Corp
Original Assignee
Onkyo 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 Onkyo Corp filed Critical Onkyo Corp
Priority to JP10597880A priority Critical patent/JPS5731295A/en
Publication of JPS5731295A publication Critical patent/JPS5731295A/en
Pending 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 obtain a lightweight speaker diaphragm having a large rigidity and a high speed of propagation, by making the paper from a raw material obtained by crushing the craft pulp of the conifers with a specified high concentration and molding the paper with heat to provide both the Young's modulus and density within each specific range. CONSTITUTION:The craft pulp of confiers are crushed in a range of 40-60% concentration to obtain a raw material. Such material are made into paper and then formed into a diaphragm having the Young's modulus of (1.4-1.8)X10<11> dyne/ cm<2> and (0.34-0.4)g/cm<2> density through a molding with heat. As shown by the (x) marks in the diagram, a lightweight diaphragm can be obtained with a larger Young's modulus, i.e., a large rigidity plus a high speed of propagation in comparison with the conventional diaphragm shown by the dots in the diagram.
JP10597880A 1980-07-31 1980-07-31 Speaker diaphragm Pending JPS5731295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10597880A JPS5731295A (en) 1980-07-31 1980-07-31 Speaker diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10597880A JPS5731295A (en) 1980-07-31 1980-07-31 Speaker diaphragm

Publications (1)

Publication Number Publication Date
JPS5731295A true JPS5731295A (en) 1982-02-19

Family

ID=14421837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10597880A Pending JPS5731295A (en) 1980-07-31 1980-07-31 Speaker diaphragm

Country Status (1)

Country Link
JP (1) JPS5731295A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0256743A2 (en) * 1986-08-04 1988-02-24 Matsushita Electric Industrial Co., Ltd. Diaphragm for Loudspeakers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5189414A (en) * 1975-02-03 1976-08-05 Supiikashindobanno seizohoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5189414A (en) * 1975-02-03 1976-08-05 Supiikashindobanno seizohoho

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0256743A2 (en) * 1986-08-04 1988-02-24 Matsushita Electric Industrial Co., Ltd. Diaphragm for Loudspeakers

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