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EP0211285A2 - Montre-bracelet - Google Patents

Montre-bracelet Download PDF

Info

Publication number
EP0211285A2
EP0211285A2 EP86109755A EP86109755A EP0211285A2 EP 0211285 A2 EP0211285 A2 EP 0211285A2 EP 86109755 A EP86109755 A EP 86109755A EP 86109755 A EP86109755 A EP 86109755A EP 0211285 A2 EP0211285 A2 EP 0211285A2
Authority
EP
European Patent Office
Prior art keywords
gear
wheels
uniformly
wheel
wristwatch
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.)
Granted
Application number
EP86109755A
Other languages
German (de)
English (en)
Other versions
EP0211285A3 (en
EP0211285B1 (fr
Inventor
Wolfgang Kröner
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.)
Pforzheimer Uhren Rohwerke Porta GmbH
Original Assignee
Pforzheimer Uhren Rohwerke Porta GmbH
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 Pforzheimer Uhren Rohwerke Porta GmbH filed Critical Pforzheimer Uhren Rohwerke Porta GmbH
Publication of EP0211285A2 publication Critical patent/EP0211285A2/fr
Publication of EP0211285A3 publication Critical patent/EP0211285A3/de
Application granted granted Critical
Publication of EP0211285B1 publication Critical patent/EP0211285B1/fr
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
    • 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
    • G04B13/00—Gearwork
    • G04B13/001—Gearwork with the choice of adjustable or varying transmission ratio
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/027—Wheels; Pinions; Spindles; Pivots planar toothing: shape and design

Definitions

  • the invention relates to a wristwatch, preferably an electrically (electronically) operated wristwatch, the display elements of which are driven by a clockwise rotating drive (balance wheel, stepper motor) via a gear train, the display elements on the one hand continuously rotating hands (second, minute, hour hands) ) and on the other hand serve signal rings (signal disks, special pointers) that only change their position at certain times.
  • a clockwise rotating drive balance wheel, stepper motor
  • signal rings signal disks, special pointers
  • a typical display element of the second type which only changes its position at certain times, is the indication of the calendar day.
  • the calendar days from 1 to 31 are shown on a signal ring, which is rotated one step further to the next display by the clockwork of the clock every day, at around midnight.
  • the signal ring carrying the calendar data is generally provided with an additional jump adjustment mechanism or with a mechanism such as that shown in DE-GM 19 07 388, for example, which operates within a relatively short time the adjustment causes.
  • the service life of the battery depends not only on the internal battery structure, but also on the power consumption or the power requirement by the clockwork. It is not only the amount of the withdrawal that is decisive, but also the fluctuations in the size of this withdrawal.
  • Such batteries used in modern wristwatches are designed, in particular, to deliver a relatively low current over a very long time. Current peaks, such as those required for calendar adjustment, have an extremely reducing effect on the overall service life of such batteries.
  • the object of the invention is to provide a possibility for a rotary movement of the signal rings, which change their position only at certain times, which only requires a slight increase in the power consumption from the energy store when this rotary movement is carried out, so that a total power draw is required results, whose minima and maxima are as close together as possible.
  • Non-uniformly abortive gears are, for example, elliptical gears or also gears in which an eccentrically mounted circular gear works together with a non-circular counter gear.
  • the driving wheel is rotated uniformly by the clockwork or by the clockwise rotating drive of the clockwork, while the driving wheel performs a non-uniform rotary movement or has uneven angles of rotation per unit of time.
  • the gear ratio changes constantly, which changes between two extremes, the gear ratio extremely slow and that extremely fast.
  • the rotational movement is non-uniform, but also the torque of the driven wheel, which reciprocally follows the change in the rotational speed.
  • the other extreme than the high rotational speed can of course also be used for an operation at this time. This is the case, for example, when a contact ring is to be rotated, which is only intended to give a contact pulse, the torque only playing a very minor role, but it is important that only one wiping contact occurs. Under certain circumstances, this can save additional snap elements that are otherwise necessary.
  • the speed ratio between the cooperating wheels of the non-uniformly driven gear will generally be 1, but can also be a multiple thereof. Especially when changing the calendar, you will usually choose a speed ratio of 1 and provide a cycle time of one day for the driven wheel. However, this speed ratio, like this orbital period, is not mandatory; Larger ones are quite conceivable Speed ratios, as well as the rotation of the driven wheel within a period corresponding to the usual time units, i.e. within a minute, an hour, a half day, a day, a week, a month or a year.
  • the non-uniformly abortive gear must be arranged outside the actual gear train, i.e. above or below the work plate of the clockwork, the wheels of this gear train must therefore be removed before maintenance of the gear train, it is recommended according to the invention that one of the Wheels of the cooperating pair of wheels of the non-uniformly abortive gear have a tooth with a larger tooth height relative to the other teeth and the other gear at the correct mutual position of the two wheels of this pair of wheels each has a correspondingly larger gap or several such gaps. This ensures that the two wheels of this pair of wheels are always used in the correct mutual position.
  • the driven wheel 1 of a non-uniformly driving gear formed with two congruent elliptical wheels meshes with the driving wheel 2.
  • the driving wheel 2 has a rotational speed as it results from Fig. 2 can be seen. 2
  • the time axis of which is subdivided into equal time periods shows how the non-uniformly driving gear is converted into the uniform speed ⁇ 1 of the driven wheel 1 into an extremely non-uniform rotational speed ⁇ 2 of the driving wheel 2.
  • Both wheels of the pair of wheels of this non-uniformly driven gear have shafts 11, 12, on which further circular wheels, or in the case of the driven wheel, drivers are arranged.
  • the driven wheel is connected to the clockwork and the driven wheel to the display element via these elements.
  • FIG. 7 shows a non-uniformly driven gear with a speed ratio of 2, so that the driven eccentrically mounted circular wheel 5 has to make two rotations in order to cause one rotation of the driven wheel 6.
  • Fig. 8 shows a speed ratio of 3, in turn an eccentrically mounted, driven wheel 7 acting on a non-circular abrading wheel 8 and the driven wheel 7 having to make three revolutions for one revolution of the aborting wheel 8.
  • only one rotation maxima and one rotation movement minimum or two torque minima and one torque maximum arise in one revolution of the driven wheel 7.
  • FIG. 9 finally shows a view of the pair of wheels in which a larger tooth 9 is provided in a gear 1, each of which has a correspondingly larger gap 10 as taking into account the gear ratio corresponds to several such gaps 10 in the meshing wheel 2 with it. This ensures a clear adjustment of the meshing gears (1/2, 3/4, 5/6 7/8) as well as simple assembly.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP86109755A 1985-07-29 1986-07-16 Montre-bracelet Expired - Lifetime EP0211285B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3527125A DE3527125C1 (de) 1985-07-29 1985-07-29 Armbanduhr
DE3527125 1985-07-29

Publications (3)

Publication Number Publication Date
EP0211285A2 true EP0211285A2 (fr) 1987-02-25
EP0211285A3 EP0211285A3 (en) 1988-08-10
EP0211285B1 EP0211285B1 (fr) 1992-03-04

Family

ID=6277069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109755A Expired - Lifetime EP0211285B1 (fr) 1985-07-29 1986-07-16 Montre-bracelet

Country Status (3)

Country Link
US (1) US4671670A (fr)
EP (1) EP0211285B1 (fr)
DE (1) DE3527125C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3605243A1 (fr) * 2018-07-31 2020-02-05 Montres Breguet S.A. Mecanisme d'affichage d'horlogerie a geometrie variable avec aiguille elastique

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH680325B5 (fr) * 1991-02-25 1993-02-15 Ebauchesfabrik Eta Ag
US7013211B2 (en) 2002-12-02 2006-03-14 Hitachi, Ltd. Variable valve control apparatus for internal combustion engine and method thereof
EP3070536B1 (fr) 2015-03-19 2019-05-01 ETA SA Manufacture Horlogère Suisse Mouvement horloger comprenant un dispositif d'entraînement d'un affichage analogique
DE102019120272B3 (de) * 2019-07-26 2020-06-18 Lange Uhren Gmbh Uhr mit einer ersten Anzeige und einer zweiten Anzeige
EP4328673A1 (fr) * 2022-08-23 2024-02-28 Patek Philippe SA Genève Mecanisme d'horlogerie a came
CH720089A1 (fr) * 2022-10-05 2024-04-15 Richemont Int Sa Mobile pour un mécanisme horloger, mécanisme horloger, mouvement horloger, et pièce d'horlogerie correspondants

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR929179A (fr) * 1946-05-09 1947-12-18 Dispositifs mécaniques permettant à un index de suivre dans des temps mathématiquement égaux ou variables, des profils réguliers ou irréguliers
DE1523772A1 (de) * 1964-06-09 1969-09-11 Harvey Aluminum Inc Verfahren und Vorrichtung zur Zeitmessung und Taktgabe
DE1907388A1 (de) * 1968-05-08 1969-11-20 Swingline Inc Corp Druckmittelbetaetigtes Ziehwerkzeug fuer Blindniete
US3757508A (en) * 1972-03-27 1973-09-11 N Marklin Clock with spaced-apart free-form time-indicating elements
DE8122028U1 (de) * 1981-07-28 1982-01-07 Pinkall, Ulrich, 7801 Buchenbach Lemniskatenuhr
EP0308793A1 (fr) * 1987-09-24 1989-03-29 Eta SA Fabriques d'Ebauches Mouvement de montre comprenant des indicateurs de quantième et des phases de lune

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH596594B5 (fr) * 1976-05-24 1978-03-15 Ebauches Sa
JPS53110559A (en) * 1977-03-08 1978-09-27 Citizen Watch Co Ltd Electronic watch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR929179A (fr) * 1946-05-09 1947-12-18 Dispositifs mécaniques permettant à un index de suivre dans des temps mathématiquement égaux ou variables, des profils réguliers ou irréguliers
DE1523772A1 (de) * 1964-06-09 1969-09-11 Harvey Aluminum Inc Verfahren und Vorrichtung zur Zeitmessung und Taktgabe
DE1907388A1 (de) * 1968-05-08 1969-11-20 Swingline Inc Corp Druckmittelbetaetigtes Ziehwerkzeug fuer Blindniete
US3757508A (en) * 1972-03-27 1973-09-11 N Marklin Clock with spaced-apart free-form time-indicating elements
DE8122028U1 (de) * 1981-07-28 1982-01-07 Pinkall, Ulrich, 7801 Buchenbach Lemniskatenuhr
EP0308793A1 (fr) * 1987-09-24 1989-03-29 Eta SA Fabriques d'Ebauches Mouvement de montre comprenant des indicateurs de quantième et des phases de lune

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Les montres-calendries modernes, Ed. Scriptar (1953), S. 122 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3605243A1 (fr) * 2018-07-31 2020-02-05 Montres Breguet S.A. Mecanisme d'affichage d'horlogerie a geometrie variable avec aiguille elastique
EP3605244A1 (fr) * 2018-07-31 2020-02-05 Montres Breguet S.A. Mecanisme d'affichage d'horlogerie a aiguille elastique
WO2020025423A1 (fr) * 2018-07-31 2020-02-06 Montres Breguet S.A. Mecanisme d'affichage d'horlogerie a geometrie variable avec aiguille elastique
WO2020025424A1 (fr) * 2018-07-31 2020-02-06 Montres Breguet S.A. Mecanisme d'affichage d'horlogerie a geometrie variable avec aiguille elastique
US11537080B2 (en) 2018-07-31 2022-12-27 Montres Breguet S.A. Timepiece display mechanism with a resilient hand
US11860577B2 (en) 2018-07-31 2024-01-02 Montres Breguet S.A. Variable-geometry timepiece display mechanism with resilient hand
US11886147B2 (en) 2018-07-31 2024-01-30 Montres Breguet S.A. Variable-geometry timepiece display mechanism with resilient hand

Also Published As

Publication number Publication date
DE3527125C1 (de) 1987-03-12
US4671670A (en) 1987-06-09
EP0211285A3 (en) 1988-08-10
EP0211285B1 (fr) 1992-03-04

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