CH607739B - REAR WINDING WATCH MECHANISM. - Google Patents

REAR WINDING WATCH MECHANISM.

Info

Publication number
CH607739B
CH607739B CH1167574A CH1167574A CH607739B CH 607739 B CH607739 B CH 607739B CH 1167574 A CH1167574 A CH 1167574A CH 1167574 A CH1167574 A CH 1167574A CH 607739 B CH607739 B CH 607739B
Authority
CH
Switzerland
Prior art keywords
winding
gear
ratchet teeth
stem
spring
Prior art date
Application number
CH1167574A
Other languages
French (fr)
Other versions
CH607739GA3 (en
Inventor
Katsutoshi Maeda
Original Assignee
Seiko Instr & Electronics
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 of CH607739B publication Critical patent/CH607739B/en
Application filed by Seiko Instr & Electronics filed Critical Seiko Instr & Electronics
Publication of CH607739GA3 publication Critical patent/CH607739GA3/xx

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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/043—Locking of the operating element, also by mounting in a concealed place

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Mechanical Operated Clutches (AREA)
  • Sanitary Thin Papers (AREA)
  • Pinball Game Machines (AREA)

Abstract

A winding mechanism for watches particularly back winding watches in which a winding stem has a winding gear rotational thereon provided with ratchet teeth. The winding gear meshes with a ratchet gear at all times. A clutch gear is mounted for rotation with the winding stem and is axially slidable thereon. It is biased by a spring toward engagement with the ratchet teeth of the winding gear by means of a spring. The clutch gear is declutched when the winding stem is pulled out for a hand-setting operation. The clutch gear is engaged by an enlarged diameter portion of the winding stem lifting it so that it disengages from the ratchet teeth of the winding gear against the action of its biasing spring.
CH1167574A 1973-08-28 1974-08-27 REAR WINDING WATCH MECHANISM. CH607739B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48096462A JPS5046161A (en) 1973-08-28 1973-08-28

Publications (2)

Publication Number Publication Date
CH607739B true CH607739B (en)
CH607739GA3 CH607739GA3 (en) 1978-10-31

Family

ID=14165683

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1167574A CH607739B (en) 1973-08-28 1974-08-27 REAR WINDING WATCH MECHANISM.

Country Status (6)

Country Link
US (1) US3916615A (en)
JP (1) JPS5046161A (en)
CH (1) CH607739B (en)
DE (1) DE2440248A1 (en)
FR (1) FR2242713A1 (en)
GB (1) GB1442709A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH632369B (en) * 1979-10-19 Ries Bannwart Et Cie Corum WINDING AND TIME-SETTING DEVICE FOR A WATCH PART.
CH644239B (en) * 1981-04-16 Ebauches Electroniques Sa CLOCK PART WITH CONTROL MECHANISM.
EP2570863B1 (en) * 2011-09-15 2017-11-08 Blancpain S.A. Clock barrel assembly with reduced core diameter
CH708755A1 (en) * 2013-10-30 2015-04-30 Richemont Int Sa Holding and indexing device for watches.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US644381A (en) * 1899-08-02 1900-02-27 Adolf Reisser Stem-winding watch.
US739089A (en) * 1903-03-10 1903-09-15 Christopher Kuenzel Stem winding and setting watch.
US771227A (en) * 1904-04-19 1904-10-04 Francois Celestin Alfred Blanc Winding and setting mechanism for watches.
US2412493A (en) * 1945-04-23 1946-12-10 Hamilton Watch Co Timepiece setting mechanism
US3040513A (en) * 1959-03-26 1962-06-26 Ebauches Sa Winding and setting device for watches

Also Published As

Publication number Publication date
GB1442709A (en) 1976-07-14
US3916615A (en) 1975-11-04
DE2440248A1 (en) 1975-03-06
JPS5046161A (en) 1975-04-24
CH607739GA3 (en) 1978-10-31
FR2242713A1 (en) 1975-03-28

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