CH639522GA3 - - Google Patents

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Publication number
CH639522GA3
CH639522GA3 CH547281A CH547281A CH639522GA3 CH 639522G A3 CH639522G A3 CH 639522GA3 CH 547281 A CH547281 A CH 547281A CH 547281 A CH547281 A CH 547281A CH 639522G A3 CH639522G A3 CH 639522GA3
Authority
CH
Switzerland
Prior art keywords
hand
manufacturing
timepiece
lightweight
rigid
Prior art date
Application number
CH547281A
Other languages
German (de)
Other versions
CH639522B (en
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
Publication of CH639522B publication Critical patent/CH639522B/en
Application filed filed Critical
Publication of CH639522GA3 publication Critical patent/CH639522GA3/de

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)
  • Electromechanical Clocks (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Micromachines (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A method of manufacturing a timepiece hand is disclosed, whereby the hand can be made extremely thin and lightweight, as well as strong and rigid. The timepiece hand is in the form of an open shell formed of hard nickel electro-forming. Because a minimum of mechanical working is performed upon the hand during the manufacturing process, bending distortion of the hand is avoided, and such a hand can be made substantially thinner than has been possible with manufacturing methods of the prior art.
CH547281A 1980-08-25 1981-08-25 METHOD AND PLASTIC FORM FOR MANUFACTURING A CLOCK HAND. CH639522B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55116720A JPS5740669A (en) 1980-08-25 1980-08-25 Watch hand and manuacture thereof

Publications (2)

Publication Number Publication Date
CH639522B CH639522B (en)
CH639522GA3 true CH639522GA3 (en) 1983-11-30

Family

ID=14694134

Family Applications (1)

Application Number Title Priority Date Filing Date
CH547281A CH639522B (en) 1980-08-25 1981-08-25 METHOD AND PLASTIC FORM FOR MANUFACTURING A CLOCK HAND.

Country Status (6)

Country Link
US (1) US4371429A (en)
JP (1) JPS5740669A (en)
CH (1) CH639522B (en)
DE (1) DE3133414A1 (en)
GB (1) GB2085620B (en)
HK (1) HK40886A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107219747A (en) * 2015-11-11 2017-09-29 尼瓦洛克斯-法尔股份有限公司 The manufacture method of Metal Substrate part with least one optical illusion pattern

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01314827A (en) * 1988-06-15 1989-12-20 Rinnai Corp Burning apparatus
IT226577Z2 (en) * 1992-05-14 1997-06-24 Consolo Giovanni Battista PERFECTED HANDS FOR WATCHES PARTICULARLY DESIGNED TO ALLOW THE SETTING OF GLITTERS OR OTHER PRECIOUS STONES OR DIFFERENT DIMENSIONS
EP1835339B1 (en) * 2006-03-15 2012-05-16 Rolex S.A. Fabrication process by LIGA type technology, of a monolayer or multilayer metallic structure, and structure obtained therewith
JP5366606B2 (en) * 2009-03-25 2013-12-11 シチズンホールディングス株式会社 Manufacturing method of watch hands
EP3220209B1 (en) 2016-03-14 2019-02-06 Nivarox-FAR S.A. Economical timepiece display component
JP6671641B2 (en) * 2017-09-15 2020-03-25 カシオ計算機株式会社 Hands and clock
EP3845974B1 (en) * 2019-12-31 2024-02-21 The Swatch Group Research and Development Ltd Mobile indicator for an analogue display device
EP3968096B1 (en) * 2020-09-15 2026-04-01 ETA SA Manufacture Horlogère Suisse Micromechanical component, in particular a timepiece mobile, in particular an escapement mobile, with optimised contact surface

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1570634A (en) * 1922-05-24 1926-01-26 Arthur K Laukel Deposited-metal pattern and method of making it
JPS4844138A (en) * 1971-06-15 1973-06-25
JPS5260241A (en) * 1975-11-13 1977-05-18 Citizen Watch Co Ltd Electrocasted needle for watch
JPS5915317B2 (en) 1976-10-28 1984-04-09 住友金属工業株式会社 Direct acting hot stamper
JPS5397459A (en) * 1977-02-05 1978-08-25 Yamasa Seimitsu Seisakushiyo Y Production method of pointing part
JPS5523453A (en) * 1978-08-09 1980-02-19 Citizen Watch Co Ltd Manufacture of hand for timepiece
JPS5537915A (en) * 1978-09-08 1980-03-17 Citizen Watch Co Ltd Pointer for clock
JPS5552980A (en) * 1978-10-14 1980-04-17 Citizen Watch Co Ltd Method of manufacturing hand for watch
JPS5555529A (en) 1978-10-20 1980-04-23 Hitachi Ltd Method of positioning wafer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107219747A (en) * 2015-11-11 2017-09-29 尼瓦洛克斯-法尔股份有限公司 The manufacture method of Metal Substrate part with least one optical illusion pattern

Also Published As

Publication number Publication date
US4371429A (en) 1983-02-01
DE3133414C2 (en) 1990-07-12
GB2085620A (en) 1982-04-28
JPS5740669A (en) 1982-03-06
HK40886A (en) 1986-06-06
DE3133414A1 (en) 1982-04-08
CH639522B (en)
JPS6337908B2 (en) 1988-07-27
GB2085620B (en) 1984-03-07

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