EP2811346A2 - Jahreskalender oder ewiger Kalender mit Drehmechanismus für Uhr - Google Patents

Jahreskalender oder ewiger Kalender mit Drehmechanismus für Uhr Download PDF

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Publication number
EP2811346A2
EP2811346A2 EP14405047.3A EP14405047A EP2811346A2 EP 2811346 A2 EP2811346 A2 EP 2811346A2 EP 14405047 A EP14405047 A EP 14405047A EP 2811346 A2 EP2811346 A2 EP 2811346A2
Authority
EP
European Patent Office
Prior art keywords
wheel
teeth
february
tooth
leap
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.)
Withdrawn
Application number
EP14405047.3A
Other languages
English (en)
French (fr)
Other versions
EP2811346A3 (de
Inventor
David W. Lea
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2811346A2 publication Critical patent/EP2811346A2/de
Publication of EP2811346A3 publication Critical patent/EP2811346A3/de
Withdrawn legal-status Critical Current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
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G04B19/2536—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement automatically corrected at the end of months having less than 31 days

Definitions

  • the mechanism according to the invention comprises a date wheel 1 having 31 teeth and operating every 24 hours a rotation of 1/31 e of revolution under the action of a first long tooth 2 positioned on a wheel of twenty-four hours 3 operating itself a revolution every 24 hours thanks to the action of the movement equipping the timepiece.
  • a fixed wheel 4 having a toothed sector and a smooth circumferential sector 5 is coaxial with the date wheel whose rotation causes a satellite wheel 6 months rotating like a satellite around the fixed wheel.
  • the satellite wheel months also pivots about an axis 7 when its teeth meet the toothed sector of the fixed wheel, while it does not rotate around its axis when in contact with the sector of smooth circumference of the fixed wheel since its teeth then simply slide along this sector.
  • the toothed sector of the fixed wheel has four teeth, but it may as well have six or ten teeth.
  • the satellite wheel of the months and the fixed wheel are positioned so that the sector of smooth circumference prevents rotation of the satellite wheel months around its axis when the teeth of the date wheel representing the end of a month are positioned so that they can be driven by the twenty-four hour wheel.
  • the invention furthermore consists of a wheel from the years to twelve teeth 8, each tooth representing a month of the year. Seven adjacent teeth of this twelve-toothed year wheel are truncated, while the remaining five teeth are long.
  • This wheel twelve years teeth has an axis 9 positioned so that at the end of the month, one of these twelve teeth covers the thirtieth tooth 10 of the date wheel.
  • the tooth covering the thirtieth tooth of the date wheel When the tooth covering the thirtieth tooth of the date wheel is long, it can be driven by a second long tooth 11 positioned on the wheel of twenty-four hours. Thus, when the five long teeth of the wheel for years to twelve teeth is driven, the date wheel is driven and rotates 1/31 th of revolution.
  • the wheel of the twelve-toothed year is driven or prevented from any rotation by a kinematic link that connects to the satellite wheel months and the fixed wheel.
  • the mechanism described so far allows the adjustment of the date for all months except for February and is therefore an annual calendar requiring adjustment only at the end of February.
  • the satellite wheel of the months has twelve teeth, each tooth representing a month of the year.
  • This satellite wheel months door fixed coaxially, a cam or wheel 12 comprising a single tooth representing the month of February 13 and a smooth sector 14 representing the other months of the year.
  • An intermediate wheel 15 completes the kinematic link existing between the satellite wheel of the months and the wheel of the twelve-tooth year.
  • the single tooth representing the month of February meshes with the month of February with a pinion with eight teeth 16 fixed and co-axial with a leap-wheel 17 representing the four months of February included in a leap cycle.
  • This leap-wheel thus has two teeth representing February 28 and 29 for each month of February having 28 days and a tooth representing February 29 for the month of February having 29 days.
  • the eight-tooth sprocket and the leap-wheel both pivot about an axis attached to the date wheel.
  • the teeth of the leap wheel representing February 29, 18 are positioned at 90 ° relative to each other, while the teeth representing February 28 are respectively positioned at 90 °, 90 ° and 180 °.
  • the teeth of the leap wheel representing February 28 and 29 are positioned so that they cover the twenty-eighth 19 and twenty-ninth 20 teeth of the date wheel at the end of February in non-leap years.
  • the tooth of the wheel leap representative February 29 in turn is positioned so that it covers the 29th tooth of the date wheel at the end of February in leap years.
  • the rotation of the single tooth representing the month of February allows it to mesh in February with the pinion with eight teeth, which has the effect of driving the leap-wheel which operates a rotation of 45 °, so that at the end of February of a non-leap year, the teeth of the wheel representing the leap February 28 and 29 are positioned to cover the 28th and 29th teeth of the date wheel, and at the end of the month of February in a leap year, the tooth of the wheel leap representative February 29 is in position to cover the 29th tooth of the date wheel.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP14405047.3A 2013-06-04 2014-06-04 Jahreskalender oder ewiger Kalender mit Drehmechanismus für Uhr Withdrawn EP2811346A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01064/13A CH708216B1 (fr) 2013-06-04 2013-06-04 Mécanisme de quantième annuel ou perpétuel pour une pièce d'horlogerie.

Publications (2)

Publication Number Publication Date
EP2811346A2 true EP2811346A2 (de) 2014-12-10
EP2811346A3 EP2811346A3 (de) 2016-04-27

Family

ID=51014252

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14405047.3A Withdrawn EP2811346A3 (de) 2013-06-04 2014-06-04 Jahreskalender oder ewiger Kalender mit Drehmechanismus für Uhr

Country Status (2)

Country Link
EP (1) EP2811346A3 (de)
CH (1) CH708216B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105549372A (zh) * 2016-02-04 2016-05-04 福建上润精密仪器有限公司 一种钟表机芯无齿伤离合过轮机构
EP3460588A1 (de) * 2017-09-20 2019-03-27 Richemont International S.A. Datumsmechanismus
CH715471A1 (fr) * 2018-10-25 2020-04-30 Lvmh Swiss Mft Sa Mécanisme horloger pour quantième perpétuel.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH614815A5 (de) 1976-06-14 1979-12-14 Shinetsu Polymer Co
CH680630B5 (de) 1991-04-17 1993-04-15 Nardin Ulysse Sa
CH693691A5 (fr) 2002-09-02 2003-12-15 David Watson Lea Pièce d'horlogerie à quantième perpétuel.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH614815A5 (de) 1976-06-14 1979-12-14 Shinetsu Polymer Co
CH680630B5 (de) 1991-04-17 1993-04-15 Nardin Ulysse Sa
CH693691A5 (fr) 2002-09-02 2003-12-15 David Watson Lea Pièce d'horlogerie à quantième perpétuel.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
B. HUMBETT: "Les montres-calendrier modernes", 1953

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105549372A (zh) * 2016-02-04 2016-05-04 福建上润精密仪器有限公司 一种钟表机芯无齿伤离合过轮机构
EP3460588A1 (de) * 2017-09-20 2019-03-27 Richemont International S.A. Datumsmechanismus
CH714178A1 (fr) * 2017-09-20 2019-03-29 Richemont Int Sa Mécanisme de quantième annuel.
CH715471A1 (fr) * 2018-10-25 2020-04-30 Lvmh Swiss Mft Sa Mécanisme horloger pour quantième perpétuel.

Also Published As

Publication number Publication date
CH708216B1 (fr) 2017-12-29
CH708216A2 (fr) 2014-12-15
EP2811346A3 (de) 2016-04-27

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