GB1306432A - Calender correction mechanism for a timepiece - Google Patents

Calender correction mechanism for a timepiece

Info

Publication number
GB1306432A
GB1306432A GB814970A GB814970A GB1306432A GB 1306432 A GB1306432 A GB 1306432A GB 814970 A GB814970 A GB 814970A GB 814970 A GB814970 A GB 814970A GB 1306432 A GB1306432 A GB 1306432A
Authority
GB
United Kingdom
Prior art keywords
stem
wheel
clutch
lever
teeth
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.)
Expired
Application number
GB814970A
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
Publication of GB1306432A publication Critical patent/GB1306432A/en
Expired 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
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/25—Devices for setting the date indicators manually

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Operated Clutches (AREA)
  • Electromechanical Clocks (AREA)

Abstract

1306432 Calendar timepieces CITIZEN WATCH CO Ltd 19 Feb 1970 [20 Feb 1969] 8149/70 Heading G3T A setting mechanism for the date ring of a calendar timepiece comprises a clutch wheel which is rotatable with and slidable along a stem. The clutch wheel has teeth which mesh with a gear on a correction wheel mounted on a lever. In a first embodiment, a winding stem 10 can take any of three axial positions. The stem is held in these positions by a pin 15b on a setting lever 15 engaging in recesses 21a, b, c in a spring 21. In Fig. 1, the stem is shown withdrawn one step from its rest position and thus ready for datesetting. In this position, rotation of the stem 10 causes rotation of a clutch wheel 12 which meshes with a transverse correction gear 17, the latter being fixed with a correction wheel 18. Fingers on the wheel 18 then engage teeth 23a to rotate the date ring 23. Axial movement of the stem to its rest position, Fig. 3 (not shown), causes a clutch lever 24, actuated by setting lever 15, to move the clutch wheel 12 along the stem 10 so that teeth 12a mesh with teeth 11a on a winding pinion 11. The gear 17 is held out of engagement with the clutch 12 by its mounting in a lever 16 and by a spring 22. Withdrawing the stem by two steps brings the mechanism into the position of Fig. 4 (not shown) wherein teeth 12b on the clutch 12 engage a setting wheel 13 in mesh with minute wheel 14 for adjusting the hands of the timepiece. In a second embodiment Figs. 5-8 (not shown), the lever 16 and springs 21, 22 are combined into a single unit.
GB814970A 1969-02-20 1970-02-19 Calender correction mechanism for a timepiece Expired GB1306432A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1969014282U JPS4728699Y1 (en) 1969-02-20 1969-02-20

Publications (1)

Publication Number Publication Date
GB1306432A true GB1306432A (en) 1973-02-14

Family

ID=11856720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB814970A Expired GB1306432A (en) 1969-02-20 1970-02-19 Calender correction mechanism for a timepiece

Country Status (5)

Country Link
US (1) US3609955A (en)
JP (1) JPS4728699Y1 (en)
DE (1) DE2007666A1 (en)
FR (1) FR2061586B1 (en)
GB (1) GB1306432A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG87732A1 (en) * 1993-08-31 2002-04-16 Ebauchesfabrik Eta Ag Timepiece
CN111290232A (en) * 2018-12-10 2020-06-16 宝玑表有限公司 System for adjusting the position of a support on which a first gear train is pivotably mounted with respect to the first gear train, and timepiece comprising such a system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594302Y2 (en) * 1978-04-19 1984-02-07 セイコーエプソン株式会社 Clock switching mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH372983A (en) * 1961-10-06 1963-01-31 Brac Ag Clock with date disc
CH412724A (en) * 1964-07-16 1965-11-30 Ebauches Sa Calendar clockwork

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG87732A1 (en) * 1993-08-31 2002-04-16 Ebauchesfabrik Eta Ag Timepiece
CN111290232A (en) * 2018-12-10 2020-06-16 宝玑表有限公司 System for adjusting the position of a support on which a first gear train is pivotably mounted with respect to the first gear train, and timepiece comprising such a system
CN111290232B (en) * 2018-12-10 2022-08-02 宝玑表有限公司 System for adjusting the position of a first gear set relative to a support and timepiece comprising same
US11550264B2 (en) 2018-12-10 2023-01-10 Montres Breguet S.A. System for adjusting the position of a first toothed wheel set relative to a support on which the first toothed wheel set is pivotably mounted and timepiece comprising such a system
US11899402B2 (en) 2018-12-10 2024-02-13 Montres Breguet S.A. System for adjusting the position of a first toothed wheel set relative to a support on which the first toothed wheel set is pivotably mounted and timepiece comprising such a system

Also Published As

Publication number Publication date
FR2061586A1 (en) 1971-06-25
US3609955A (en) 1971-10-05
DE2007666A1 (en) 1970-09-03
JPS4728699Y1 (en) 1972-08-29
FR2061586B1 (en) 1974-03-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees