JPS5569078A - Sealing unit for sound lead-in opening of electronic watch - Google Patents

Sealing unit for sound lead-in opening of electronic watch

Info

Publication number
JPS5569078A
JPS5569078A JP14229778A JP14229778A JPS5569078A JP S5569078 A JPS5569078 A JP S5569078A JP 14229778 A JP14229778 A JP 14229778A JP 14229778 A JP14229778 A JP 14229778A JP S5569078 A JPS5569078 A JP S5569078A
Authority
JP
Japan
Prior art keywords
sound
opening
microphone
lead
attenuating
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
JP14229778A
Other languages
Japanese (ja)
Inventor
Nobuo Toyama
Junichi Yoshida
Shozo Yamano
Kenji Kamiya
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.)
Ricoh Elemex Corp
Ricoh Co Ltd
Original Assignee
Ricoh Elemex Corp
Ricoh 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 Ricoh Elemex Corp, Ricoh Co Ltd filed Critical Ricoh Elemex Corp
Priority to JP14229778A priority Critical patent/JPS5569078A/en
Publication of JPS5569078A publication Critical patent/JPS5569078A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/021—Details

Abstract

PURPOSE:To pick up a sound without attenuating it and also to shield a watch body from the outside air and damp by hermetically sealing a sound lead-in opening, provided to a watch case with an incorporated microphone, with a water-proof and elastic thin film. CONSTITUTION:In case 1, module 2 with a clocking circuit, display part, sound auto-tuning circuit, etc., combined is installed and sound pickup microphone 3 and cell 4 are fitted. Further, sound lead-in opening 5 opposing to microphone 3 is hermetically sealed from its inside with elastic thin film 6 which is made of silicone rubber, fluorine rubber, etc., and adequate in thickness for effective vibrations of an audio frequency including a time tone. As a result, the outside air and damp are completely shileded, and the sound such as time tone sound, etc, are picked up sufficiently without attenuating.
JP14229778A 1978-11-20 1978-11-20 Sealing unit for sound lead-in opening of electronic watch Pending JPS5569078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14229778A JPS5569078A (en) 1978-11-20 1978-11-20 Sealing unit for sound lead-in opening of electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14229778A JPS5569078A (en) 1978-11-20 1978-11-20 Sealing unit for sound lead-in opening of electronic watch

Publications (1)

Publication Number Publication Date
JPS5569078A true JPS5569078A (en) 1980-05-24

Family

ID=15312092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14229778A Pending JPS5569078A (en) 1978-11-20 1978-11-20 Sealing unit for sound lead-in opening of electronic watch

Country Status (1)

Country Link
JP (1) JPS5569078A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1892592A1 (en) * 2006-08-24 2008-02-27 Seiko Epson Corporation Timepiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1892592A1 (en) * 2006-08-24 2008-02-27 Seiko Epson Corporation Timepiece
US7403450B2 (en) 2006-08-24 2008-07-22 Seiko Epson Corporation Timepiece

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