JPS5752884A - Electronic clock with built-in speaker - Google Patents

Electronic clock with built-in speaker

Info

Publication number
JPS5752884A
JPS5752884A JP12811980A JP12811980A JPS5752884A JP S5752884 A JPS5752884 A JP S5752884A JP 12811980 A JP12811980 A JP 12811980A JP 12811980 A JP12811980 A JP 12811980A JP S5752884 A JPS5752884 A JP S5752884A
Authority
JP
Japan
Prior art keywords
speaker
built
electronic clock
air
power source
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
JP12811980A
Other languages
Japanese (ja)
Inventor
Akio Nakajima
Shinichi Shirasu
Tadayasu Machida
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.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch 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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Priority to JP12811980A priority Critical patent/JPS5752884A/en
Publication of JPS5752884A publication Critical patent/JPS5752884A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/02—Constructional details

Abstract

PURPOSE:To reduce the lowest resonance frequency, by placing an air chamber between the back of a speaker and clock components. CONSTITUTION:Air in a back space 513 of a vibrating plate 501 for a speaker and an air chamber 511, housing a power source cell 509 for sounding system, a power source cell 510 for clock system and the like, are connected together by means of an air path 512 formed in a securing member 514.
JP12811980A 1980-09-16 1980-09-16 Electronic clock with built-in speaker Pending JPS5752884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12811980A JPS5752884A (en) 1980-09-16 1980-09-16 Electronic clock with built-in speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12811980A JPS5752884A (en) 1980-09-16 1980-09-16 Electronic clock with built-in speaker

Publications (1)

Publication Number Publication Date
JPS5752884A true JPS5752884A (en) 1982-03-29

Family

ID=14976842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12811980A Pending JPS5752884A (en) 1980-09-16 1980-09-16 Electronic clock with built-in speaker

Country Status (1)

Country Link
JP (1) JPS5752884A (en)

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