JPS5716372A - Manufacture of hands for watch - Google Patents

Manufacture of hands for watch

Info

Publication number
JPS5716372A
JPS5716372A JP9138580A JP9138580A JPS5716372A JP S5716372 A JPS5716372 A JP S5716372A JP 9138580 A JP9138580 A JP 9138580A JP 9138580 A JP9138580 A JP 9138580A JP S5716372 A JPS5716372 A JP S5716372A
Authority
JP
Japan
Prior art keywords
hand
section
brass strip
strip
raw
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
JP9138580A
Other languages
Japanese (ja)
Inventor
Masao Okamura
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP9138580A priority Critical patent/JPS5716372A/en
Publication of JPS5716372A publication Critical patent/JPS5716372A/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
    • G04B19/00—Indicating the time by visual means
    • G04B19/04—Hands; Discs with a single mark or the like
    • G04B19/042—Construction and manufacture of the hands; arrangements for increasing reading accuracy

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To improve work efficiency, by punching a metallic strip by keeping it connected to plural wires. CONSTITUTION:In machining of raw material, a raw hand A'' is formed on a brass strip 1 by a shaft-fixing section a' which is purled by a press mold, a face-pressing section b' provided with a uniform slope by mold pressing process, and a contour c' formed by punching operation, and further, a joining section d, a joint-rising section l and a machining reference hole f are also formed on the brass strip 1. And then, in surface treatment process, Rh, plating is executed on an entire surface of the brass strip 1. In separating and assembling processes, at first, the raw hand A'' is separated from the brass strip 1 to provide a hand A, and then, the hand A which has become a single unit is chucked and pushed into a rotary shaft of a watch.
JP9138580A 1980-07-04 1980-07-04 Manufacture of hands for watch Pending JPS5716372A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9138580A JPS5716372A (en) 1980-07-04 1980-07-04 Manufacture of hands for watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9138580A JPS5716372A (en) 1980-07-04 1980-07-04 Manufacture of hands for watch

Publications (1)

Publication Number Publication Date
JPS5716372A true JPS5716372A (en) 1982-01-27

Family

ID=14024901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9138580A Pending JPS5716372A (en) 1980-07-04 1980-07-04 Manufacture of hands for watch

Country Status (1)

Country Link
JP (1) JPS5716372A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000049469A1 (en) * 1999-02-19 2000-08-24 Universo S.A. Method for producing a metal strip for making indicator pointers and resulting strip
WO2000049468A1 (en) * 1999-02-19 2000-08-24 Universo S.A. Method for producing a metal strip for making indicator pointers and resulting strip
EP1103873A1 (en) * 1999-11-29 2001-05-30 Eta SA Fabriques d'Ebauches Assembly consisting of a row of fastner elements and method of use
JP2020046348A (en) * 2018-09-20 2020-03-26 セイコーエプソン株式会社 Watch parts manufacturing method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000049469A1 (en) * 1999-02-19 2000-08-24 Universo S.A. Method for producing a metal strip for making indicator pointers and resulting strip
WO2000049468A1 (en) * 1999-02-19 2000-08-24 Universo S.A. Method for producing a metal strip for making indicator pointers and resulting strip
FR2789924A1 (en) * 1999-02-19 2000-08-25 Universo Sa Metallic band for making watch hands or indicator pointers has rectangular recesses arranged along the length of the strip and positioning holes in pairs along the edges for precise positioning prior to indicator cutting
FR2789923A1 (en) * 1999-02-19 2000-08-25 Universo Sa Method of manufacture of metallic strip for use in production of polished metal watch hands or indicators where resulting metallic strip has raised edges to protect it during subsequent handling and saves later processing time
EP1103873A1 (en) * 1999-11-29 2001-05-30 Eta SA Fabriques d'Ebauches Assembly consisting of a row of fastner elements and method of use
JP2020046348A (en) * 2018-09-20 2020-03-26 セイコーエプソン株式会社 Watch parts manufacturing method

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