US3841084A - Calendar mechanism for time-pieces - Google Patents

Calendar mechanism for time-pieces Download PDF

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Publication number
US3841084A
US3841084A US00347623A US34762373A US3841084A US 3841084 A US3841084 A US 3841084A US 00347623 A US00347623 A US 00347623A US 34762373 A US34762373 A US 34762373A US 3841084 A US3841084 A US 3841084A
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US
United States
Prior art keywords
month
date disc
main lever
cam
advancing
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
US00347623A
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English (en)
Inventor
C Eumier
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.)
SSIH Management Services SA
Original Assignee
SSIH Management Services 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 SSIH Management Services SA filed Critical SSIH Management Services SA
Application granted granted Critical
Publication of US3841084A publication Critical patent/US3841084A/en
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
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement
    • G04B19/2538—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement automatically corrected at the end of months having less than 31 days

Definitions

  • Such device is improved so as to be simple and UNITED STATES PATENTS compact in structure and to occupy substantially mini- 2,286,000 6/1942 Neyhart 58/5 mized space in time piece. 2,483,775 10/1949 Klaris 2,709,885 6/1955 Van Kampen 58/5 8 Clam, 1 Drawmg Flgure CALENDAR MECHANISM FOR TIME-PIECES BACKGROUND OF THE INVENTION
  • This invention relates generally to calendar mechanisms and more particularly to calendar mechanisms of the type in which the date indication or date disc is visible through an opening in the dial and the changing occurs by instantaneous steps, said mechanism comprising a date disc and means for the advance of the date disc, wherein said date disc revolves by a predetermined number of steps one time in 24 hours.
  • Mechanisms of this kind take the length of the month into account and make any manual corrections at the end of the 28 or 30 days-months unnecessary.
  • an object of this invention is to provide a calendar mechanism of the described type which is compact and of which the dimensions allow its use in small timepieces.
  • a calendar mechanism according to this invention comprises a main lever having at one end an advancing-and locking-device for the date disc, said lever having further a cam surface engaging a gudgeon or pin one time every 24 hours, said gudgeon being controlled by the clockwork to set and then to release said main lever, a part of said main lever leaning on a month cam which determines the displacement of said main lever. according to the length of the months, and advancing means controlled by said date disc, being provided for shifting the cam month at the end of every month.
  • the month cam is locked by a gear.
  • a main lever 32 is rotatably mounted on a fixed shaft 61 and has a beak 33 leaning on the circumference of a month cam 34 which determines its displacement in a manner which will be described hereafter.
  • the main lever 32 has at its end 35 a pinion 36 with ten teeth, which pinion is fixed on a plate 37 supporting two gudgeons on pins 38 and 39 adapted to engage the teeth or the date disc 40.
  • the month cam 34 is resiliently mounted on a toothed wheel 41 having 48 teeth.
  • This wheel 41 is driven by a pinion 42 having teeth and mounted on a star 43 having ten branches 44.
  • a second cam 45 making a revolution in 24 hours controls a second lever 47 having a toothed segment 46 which is in engagement with the pinion 36 of the main lever 32.
  • a toothed wheel 48 is concentrically mounted above the hours-wheel (not shown) with which it rotates clockwise and shifts, by the gudgeon 49, the main lever 32 every 24 hours and releases it at midnight: it causes the instantaneous displacement of the date disc 40.
  • Two springs are provided acting on levers 32 and 47, namely a spring 50 acts on lever 32 and a spring 51 acts on lever 47.
  • the toothed wheel 48 mounted above the not-shown hourswheel makes one clockwise revolution in twentyfour hours.
  • the gudgeon 49 fixed on this wheel 48 comes into contact with the main lever about six hours before midnight to rotate it clockwise about pivot 61 thereby lifting beak 33 away from cam by a slight distance.
  • the gudgeon 49 releases the main lever 32 which is pushed by the spring 50 and shifts the ,date disc 40 by the gudgeons 38 and 39.
  • the main lever 32 is a single assembly from its beak 33 to the end 35, but the beak 33 is not in the same plane as the end 35; it is offset upwardly as indicated in the drawing by a broken and a continuous line around the shaft 61.
  • the cam 34 makes one revolution in one year. Therefore, it is driven periodically at the end of every month between the 28th and the 31st day by rotation through 4/48 of a revolution, by four pins 52, 53, 54 and 55 placed under the date disc 40.
  • each month is represented by a sector 56 which is subdivided into four parts one for each 1/48 revolution caused by a corresponding one of the four pins.
  • the beak 33 of the main lever 32 butts against the peripheral first quarter 57 of a sector 56; at the 29th day, the beak 33 butts against the second quarter 58, at the 30th day, against the third quarter 59, and at the 31st day against the fourth quarter 60 because the pins 52 to 55 rotate the month cam during this four days each by a step of l/48 revolution.
  • the fourth quarters 60 of the sector 56 are smaller in diameter in order to allow to the main lever to give the date disc 40 a displacement corresponding to 2 days.
  • the second, third and fourth quarters 58, 59 and 60 of the sector 56 corresponding to February are so small in diameter that the main lever 32 gives to the date disc 40 a displacement corresponding to four days the mechanism being illustrated in the position assumed immediately following the shifting of the date from Feb. 28 to Mar. 1.
  • month cam 34 be. resiliently mounted on the toothed wheel 41 because the rotation of the month cam 34 and the penetration of the beak 33 of the main lever 32 into this month cam 34 occur at the same time, in order that the beak 33 be able to disengage from the notches of the month cam 34 and that this cam be able to rotate;
  • This resilient coupling can be realized with a ring or an axis of plastic material.
  • the gudgeon 49 is retractably mounted on the toothed wheel 48 to allow its sliping under the main lever 32. This can be realized with known means, for example with a spring.
  • a calendar mechanism for timepieces with date indication through an opening in the dial and changing by instantaneous stepping comprising a date disc and advancing means for shifting said date disc by a predetermined number of steps once every 24 hours, said advancing means including a main lever having at one end thereof an advancing and locking mechanism for cooperation with said date disc and further having a cam surface, a gudgeon responsive to a dial train of the time-piece for coaction with said cam surface once every 24 hours to set and then to release said main lever, a month cam, a part of said main lever cooperating with said month cam during release thereof from said gudgeon for determining the displacement of said date disc by said main lever according to the length of the month, and advancing means controlled by said date disc for advancing said month cam at the end of every month.
  • Mechanism as claimed in claim 1, wherein said advancing and locking mechanism of said date disc comprises a pinion and a plate.
  • Mechanism as claimed in claim 1, wherein the gudgeon for the shifting of said main lever is retractably mounted on a wheel which is coaxially mounted above the hours-wheel, said wheel making a single revolution in 24 hours.
  • Mechanism as claimed in claim 7, comprising a star-like gear having ten branches, said gear being adapted to be engaged by said pins of the date disc for driving said month cam.
  • Inventor's name should be: Cyril Vuilleumier Not: Cyril Vuill Eumier Signed and sealed this 14th day of January 1975.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US00347623A 1972-04-05 1973-04-04 Calendar mechanism for time-pieces Expired - Lifetime US3841084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH494772A CH574125B5 (ja) 1972-04-05 1972-04-05

Publications (1)

Publication Number Publication Date
US3841084A true US3841084A (en) 1974-10-15

Family

ID=4285290

Family Applications (1)

Application Number Title Priority Date Filing Date
US00347623A Expired - Lifetime US3841084A (en) 1972-04-05 1973-04-04 Calendar mechanism for time-pieces

Country Status (4)

Country Link
US (1) US3841084A (ja)
JP (1) JPS4917762A (ja)
CH (2) CH494772A4 (ja)
DE (1) DE2311539C3 (ja)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052070A1 (fr) * 1980-11-07 1982-05-19 Compagnie des Montres Longines, Francillon S.A. Montre avec un mécanisme de quantième perpétuel
US4478522A (en) * 1981-11-05 1984-10-23 Eta S.A., Fabriques D'ebauches Device for rotationally driving a member intermittently
US20030151981A1 (en) * 2002-02-11 2003-08-14 Frank Vernay Annual date mechanism for clock movement
CN102819213A (zh) * 2011-06-10 2012-12-12 精工电子有限公司 日历机构和具有该日历机构的钟表
CN103135427A (zh) * 2011-12-01 2013-06-05 精工电子有限公司 日历机构以及具有该日历机构的钟表
JP2015169660A (ja) * 2014-03-10 2015-09-28 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス 特に日付リングであるアナログインジケータを駆動するためのデバイス
EP3026504A1 (fr) * 2014-11-27 2016-06-01 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Mécanisme de quantième annuel ou perpétuel et pièce d horlogerie en comportant application
CN105652632A (zh) * 2014-11-27 2016-06-08 爱彼钟表业制造有限公司 年历或万年历机构以及包括所述机构的钟表
US11169486B2 (en) * 2015-11-13 2021-11-09 Gfpi S.A. Calendar mechanism for a timepiece

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH613336B (fr) * 1976-10-04 Ebauches Sa Piece d'horlogerie electro-mecanique a calendrier.
CH688706B5 (fr) * 1995-07-28 1998-07-31 Longines Montres Comp D Mécanisme de quantième annuel pour pièce d'horlogerie.
EP4312087A1 (fr) * 2022-07-25 2024-01-31 Patek Philippe SA Genève Mécanisme de quantième annuel pour mouvement horloger

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2286000A (en) * 1940-11-01 1942-06-09 Warren Telechron Co Calendar clock
US2483775A (en) * 1947-02-27 1949-10-04 Lodewyk Den Hartog Mechanical calendar
US2709885A (en) * 1951-12-28 1955-06-07 Marinus T Van Kampen Calendar mechanism
US3373558A (en) * 1965-08-30 1968-03-19 Makiri Uria Calendar clock or watch
FR1575397A (ja) * 1967-07-26 1969-07-18
US3673789A (en) * 1970-06-13 1972-07-04 Citizen Watch Co Ltd Calendar timepiece with month advancement mechanism for 29,30,or 31 day months
US3716983A (en) * 1970-06-22 1973-02-20 Citizen Watch Co Ltd Calendar watch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2286000A (en) * 1940-11-01 1942-06-09 Warren Telechron Co Calendar clock
US2483775A (en) * 1947-02-27 1949-10-04 Lodewyk Den Hartog Mechanical calendar
US2709885A (en) * 1951-12-28 1955-06-07 Marinus T Van Kampen Calendar mechanism
US3373558A (en) * 1965-08-30 1968-03-19 Makiri Uria Calendar clock or watch
FR1575397A (ja) * 1967-07-26 1969-07-18
US3673789A (en) * 1970-06-13 1972-07-04 Citizen Watch Co Ltd Calendar timepiece with month advancement mechanism for 29,30,or 31 day months
US3716983A (en) * 1970-06-22 1973-02-20 Citizen Watch Co Ltd Calendar watch

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052070A1 (fr) * 1980-11-07 1982-05-19 Compagnie des Montres Longines, Francillon S.A. Montre avec un mécanisme de quantième perpétuel
US4478522A (en) * 1981-11-05 1984-10-23 Eta S.A., Fabriques D'ebauches Device for rotationally driving a member intermittently
US20030151981A1 (en) * 2002-02-11 2003-08-14 Frank Vernay Annual date mechanism for clock movement
US6744696B2 (en) * 2002-02-11 2004-06-01 Rolex S.A. Annual date mechanism for clock movement
US8861313B2 (en) * 2011-06-10 2014-10-14 Seiko Instruments Inc. Calendar mechanism and timepiece having the same
CN102819213B (zh) * 2011-06-10 2016-06-15 精工电子有限公司 日历机构和具有该日历机构的钟表
JP2012255752A (ja) * 2011-06-10 2012-12-27 Seiko Instruments Inc カレンダ機構及びこれを有する時計
CN102819213A (zh) * 2011-06-10 2012-12-12 精工电子有限公司 日历机构和具有该日历机构的钟表
US20120314544A1 (en) * 2011-06-10 2012-12-13 Shigeo Suzuki Calendar mechanism and timepiece having the same
CN103135427A (zh) * 2011-12-01 2013-06-05 精工电子有限公司 日历机构以及具有该日历机构的钟表
US20130170325A1 (en) * 2011-12-01 2013-07-04 Seiko Instruments Inc. Calendar mechanism and timepiece having the same
US8848489B2 (en) * 2011-12-01 2014-09-30 Seiko Instruments Inc. Calendar mechanism and timepiece having the same
CN103135427B (zh) * 2011-12-01 2016-12-21 精工电子有限公司 日历机构以及具有该日历机构的钟表
JP2015169660A (ja) * 2014-03-10 2015-09-28 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス 特に日付リングであるアナログインジケータを駆動するためのデバイス
CN105652634A (zh) * 2014-11-27 2016-06-08 爱彼钟表业制造有限公司 年历或万年历机构以及包括所述机构的钟表
CN105652632A (zh) * 2014-11-27 2016-06-08 爱彼钟表业制造有限公司 年历或万年历机构以及包括所述机构的钟表
EP3026504A1 (fr) * 2014-11-27 2016-06-01 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Mécanisme de quantième annuel ou perpétuel et pièce d horlogerie en comportant application
US9690257B2 (en) 2014-11-27 2017-06-27 Société Anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Annual or perpetual calendar mechanism and timepiece comprising the same
US9703262B2 (en) 2014-11-27 2017-07-11 Société Anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Annual or perpetual calendar mechanism and timepiece comprising the same
US11169486B2 (en) * 2015-11-13 2021-11-09 Gfpi S.A. Calendar mechanism for a timepiece

Also Published As

Publication number Publication date
DE2311539A1 (de) 1973-10-11
DE2311539C3 (de) 1975-02-20
CH494772A4 (ja) 1975-09-15
JPS4917762A (ja) 1974-02-16
CH574125B5 (ja) 1976-03-31
DE2311539B2 (de) 1974-06-27

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