JPS5672385A - Sound body for water-proof and dust-proof watch - Google Patents

Sound body for water-proof and dust-proof watch

Info

Publication number
JPS5672385A
JPS5672385A JP14864579A JP14864579A JPS5672385A JP S5672385 A JPS5672385 A JP S5672385A JP 14864579 A JP14864579 A JP 14864579A JP 14864579 A JP14864579 A JP 14864579A JP S5672385 A JPS5672385 A JP S5672385A
Authority
JP
Japan
Prior art keywords
proof
water
dust
sound body
crown
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
JP14864579A
Other languages
Japanese (ja)
Inventor
Seiichi Nakamura
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 Watch Co Ltd
Original Assignee
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 Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP14864579A priority Critical patent/JPS5672385A/en
Publication of JPS5672385A publication Critical patent/JPS5672385A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To manufacture an electromagnetic type sound body having dust and water-proof construction with small size and thin thickness, by crowning the diaphragm plate of the electromagnetic type sound body at the external circumference of yoke and providing a water-proof member between the crown and watch case. CONSTITUTION:The crown 1a of a sound diaphragm plate 1 made of magnetic material is crowned on the external circumference 15 of a sound body yoke 3. An O ring is provided at the external circumference of the crown 1a for dust and water- proof, and it is fitted by using a nail 20 to the watch case 19.
JP14864579A 1979-11-17 1979-11-17 Sound body for water-proof and dust-proof watch Pending JPS5672385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14864579A JPS5672385A (en) 1979-11-17 1979-11-17 Sound body for water-proof and dust-proof watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14864579A JPS5672385A (en) 1979-11-17 1979-11-17 Sound body for water-proof and dust-proof watch

Publications (1)

Publication Number Publication Date
JPS5672385A true JPS5672385A (en) 1981-06-16

Family

ID=15457422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14864579A Pending JPS5672385A (en) 1979-11-17 1979-11-17 Sound body for water-proof and dust-proof watch

Country Status (1)

Country Link
JP (1) JPS5672385A (en)

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