US3805512A - Timepiece - Google Patents

Timepiece Download PDF

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Publication number
US3805512A
US3805512A US00339298A US33929873A US3805512A US 3805512 A US3805512 A US 3805512A US 00339298 A US00339298 A US 00339298A US 33929873 A US33929873 A US 33929873A US 3805512 A US3805512 A US 3805512A
Authority
US
United States
Prior art keywords
pinion
correction
stem
timepiece
indicating member
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 - Lifetime
Application number
US00339298A
Other languages
English (en)
Inventor
D Rochat
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.)
ETS SA A SWISS CORP
Original Assignee
Ebauches SA
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 Ebauches SA filed Critical Ebauches SA
Application granted granted Critical
Publication of US3805512A publication Critical patent/US3805512A/en
Assigned to ETS S.A., A SWISS CORP. reassignment ETS S.A., A SWISS CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: EBAUCHES S.A.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • a pinion of correction mounted on a stem has a star type front toothing matingly engageable with the star type front toothing of a sliding pinion mounted on the stem.
  • the front toothing of the sliding pinion disengagesthe mating toothing of the pinion of correction to prevent damage to the timepiece.
  • the object of the present invention is to provide a timepiece comprising an indicating member, especially for indicating dates, and a control mechanism for the indicating member, comprising a control stem carrying a sliding pinion.
  • the timepiece of the invention is characterized by the fact that the said stem carries, loosely mounted thereon, a pinion adapted for correction of the indicating member, movement of the said pinion of correction being effected by a sliding pinion having a front toothing engageable with a mating front toothing on the pinion of correction, the shape of the front toothings being such that, when resistance to the rotation of the pinion of correction exceeds a limit value, the action of the said toothings one on each other produces, in either direction of rotation of the stern, a disengagement of the sliding pinion from the pinion of correction, the sliding pinion being moved out of engagement against the action of an elastic return device, permitting the sliding pinion to rotate together with the stem, without driving the pinion of correction.
  • the drawing shows, by way of example, one embodiment of the invention.
  • FIG. 1 is a fragmentary, partially diagrammatic view of a portion of a watch in which only the elements necessary to the understanding of the invention have been represented, and
  • FIG. 2 is a diagrammatic sectional view along line II-Il of FIG. 1 in the direction generally shown.
  • the watch as represented comprises a date indicating member 1 having the shape of a crown provided with an inner toothing 1a with which cooperates, once per 24 hours, a control member 2, diagrammatically represented, driven by the watch movement.
  • the watch comprises a control mechanism including a stem 3 moveable between three different axial positions.
  • the first, or pushed position is neutral, the watch being an electric one; this would be a winding position in the case of a mechanical watch.
  • the second position of the stem which is intermediary, enables manual set ting of the dates on indicating member or crown 1. This intermediary position is shown in the drawing.
  • the third, or pulled position is the watch setting position.
  • the stem 3 carries a sliding pinion 4 operated by a rocking lever 5 articulated on the frame of the movement at a point which is not visible in the drawing.
  • the rocking lever 5 has a portion 5a which is engaged in a groove 6 of the sliding pinion 4.
  • a return spring 7 is engaged upon the rocking lever 5.
  • the rocking lever 5 is operated by a trigger-piece 8, articulated at 9 on the frame of the movement, an ending portion 8a of which is engaged in a groove 10 of the stem 3.
  • the sliding pinion 4 meshes, by means of a front toothing 4a thereof, with a corresponding front toothing 11a, of a pinion of correction 11.
  • the pinion of correction 11 is loosely mounted on the stem 3 and meshes with a front toothing lb of the date indicating member 1.
  • the teeth of the toothings 4a and 11a are of the so-called star type, with planar faces, the angle between these faces being of
  • the cooperation of the toothings 4a and 11a is such that, when the resistance to the rotation of the pinion of correction 11 goes beyond a limit value, for instance in the case where the correction is attempted at the very moment when one or the other of two driving fingers 2a of the control element 2 is meshed with the toothing la, the action of the toothings 4a and 11a one on each other results in a displacement of the sliding pinion 4 towards the left as seen in FIGS. 1 and 2 against the action of the return spring 7. Displacement of sliding pinion 4 results in disengagement or unclicking of the sliding pinion with respect to the pinion of correction.
  • Timepiece comprising, an indicating member, especially of dates, a control mechanism for said indicating member, the control mechanism including a control stem, a sliding pinion carried on said stem, a correction pinionloosely mounted on the stem to enable correction of the indicating member, the correction pinion having a front toothing, the sliding pinion having a front toothing matingly engaged with the correction pinion front toothing, the shape of said mating front toothings being such that when resistance to rotation of the correction pinion exceeds a limit value the action of said toothings one on each other results in disengagement therebetween, in either direction of rotation of the stem, the sliding pinion being moved out of engagement against the action of an elastic return device whereby the disengaged sliding pinion is rotatable together with the stem without driving the correction pinion.
  • Timepiece as claimed in claim 1 in which the indicating member has a front toothing and the correction pinion meshes with the front toothing of the indicating member.
  • control mechanism comprises, a trigger-piece operated by the stem during axial movement thereof, and a rocking lever'operated by said trigger-piece, said rocking lever operable to change the axial displacement of the sliding pinion, said elastic return device including a spring acting on said rocking lever.
US00339298A 1972-03-15 1973-03-08 Timepiece Expired - Lifetime US3805512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH376472A CH561923A (ja) 1972-03-15 1972-03-15

Publications (1)

Publication Number Publication Date
US3805512A true US3805512A (en) 1974-04-23

Family

ID=4262987

Family Applications (1)

Application Number Title Priority Date Filing Date
US00339298A Expired - Lifetime US3805512A (en) 1972-03-15 1973-03-08 Timepiece

Country Status (7)

Country Link
US (1) US3805512A (ja)
JP (1) JPS5630516B2 (ja)
CH (2) CH376472A4 (ja)
DE (1) DE2313294C3 (ja)
FR (1) FR2176162B1 (ja)
GB (1) GB1380528A (ja)
IT (1) IT979785B (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502804A1 (fr) * 1981-03-25 1982-10-01 Annemasse Ste Euro Fabr Ebauch Piece d'horlogerie comportant un organe auxiliaire d'affichage d'une donnee telle que le quantieme
JPS58212309A (ja) * 1982-05-31 1983-12-10 松下電工株式会社 壁取付電気機器の配線方式

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421311A (en) * 1966-03-30 1969-01-14 Bulova Watch Co Inc Actuating mechanism for timepiece date indicator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH85893A (fr) * 1917-04-14 1920-07-16 Alexandre Albert Dispositif de remontage et de mise à l'heure pour montres.
DE1204043B (de) * 1958-07-24 1965-10-28 Heliowatt Werke Elek Zitaets G Grenzkraftkupplung zur UEbertragung kleiner Leistungen in feinmechanischen oder elektro-technischen Geraeten

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421311A (en) * 1966-03-30 1969-01-14 Bulova Watch Co Inc Actuating mechanism for timepiece date indicator

Also Published As

Publication number Publication date
GB1380528A (en) 1975-01-15
JPS494567A (ja) 1974-01-16
DE2313294C3 (de) 1974-11-07
DE2313294B2 (de) 1974-03-28
CH561923A (ja) 1975-05-15
FR2176162B1 (ja) 1977-02-04
CH376472A4 (ja) 1974-12-13
IT979785B (it) 1974-09-30
FR2176162A1 (ja) 1973-10-26
DE2313294A1 (de) 1973-10-18
JPS5630516B2 (ja) 1981-07-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ETS S.A., FABRIQUES D`EBAUCHES, SCHILD-RUSTSTRASSE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EBAUCHES S.A.;REEL/FRAME:004331/0137

Effective date: 19841023