JPS57106891A - Structure of watch case - Google Patents

Structure of watch case

Info

Publication number
JPS57106891A
JPS57106891A JP18338080A JP18338080A JPS57106891A JP S57106891 A JPS57106891 A JP S57106891A JP 18338080 A JP18338080 A JP 18338080A JP 18338080 A JP18338080 A JP 18338080A JP S57106891 A JPS57106891 A JP S57106891A
Authority
JP
Japan
Prior art keywords
casing ring
back case
fixing
vibrating plate
biting
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
JP18338080A
Other languages
Japanese (ja)
Inventor
Tsuneji Takasugi
Katsuaki Tamaru
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 JP18338080A priority Critical patent/JPS57106891A/en
Publication of JPS57106891A publication Critical patent/JPS57106891A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/11—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches

Landscapes

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

Abstract

PURPOSE:To simplify the structure of a back case by fixing a casing ring used as a vibrating plate attached to the back on a middle. CONSTITUTION:A casing ring 6 is provided with a corn shaped projection part 6a and a gap S between the casing ring and a back 2 and welded with the back case 2. The position surrounded by the rising part 6a of the casing ring 6, the external circumference of the back case 2a and the lower stage part of a middle 3 are filled with packing 5. Water-proof is made available by interlocking and fixing between the biting convex of the casing ring 6 and the biting concave of the body 3. The back 2 is provided with a sound releasing hole 2c, which displays a function as the vibrating plate of the casing ring 6.
JP18338080A 1980-12-23 1980-12-23 Structure of watch case Pending JPS57106891A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18338080A JPS57106891A (en) 1980-12-23 1980-12-23 Structure of watch case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18338080A JPS57106891A (en) 1980-12-23 1980-12-23 Structure of watch case

Publications (1)

Publication Number Publication Date
JPS57106891A true JPS57106891A (en) 1982-07-02

Family

ID=16134752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18338080A Pending JPS57106891A (en) 1980-12-23 1980-12-23 Structure of watch case

Country Status (1)

Country Link
JP (1) JPS57106891A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108710281A (en) * 2018-05-30 2018-10-26 宇龙计算机通信科技(深圳)有限公司 Watchcase and wrist-watch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108710281A (en) * 2018-05-30 2018-10-26 宇龙计算机通信科技(深圳)有限公司 Watchcase and wrist-watch

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