EP1594019A1 - Datumanzeigevorrichtung für Uhren - Google Patents

Datumanzeigevorrichtung für Uhren Download PDF

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Publication number
EP1594019A1
EP1594019A1 EP05356068A EP05356068A EP1594019A1 EP 1594019 A1 EP1594019 A1 EP 1594019A1 EP 05356068 A EP05356068 A EP 05356068A EP 05356068 A EP05356068 A EP 05356068A EP 1594019 A1 EP1594019 A1 EP 1594019A1
Authority
EP
European Patent Office
Prior art keywords
rack
teeth
star wheel
wheel
date
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
EP05356068A
Other languages
English (en)
French (fr)
Other versions
EP1594019B1 (de
Inventor
Christophe Claret
Benoít Barbe
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.)
Christophe Claret SA
Original Assignee
Christophe Claret 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 Christophe Claret SA filed Critical Christophe Claret SA
Publication of EP1594019A1 publication Critical patent/EP1594019A1/de
Application granted granted Critical
Publication of EP1594019B1 publication Critical patent/EP1594019B1/de
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
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G04B19/21—Drums

Definitions

  • the subject of the present invention is a device for displaying the date on a watch.
  • the disk with the numbers must be hidden by a cache with a window leaving only the date of the desired day.
  • the technical problem underlying the invention is therefore to provide a date display device, which is of a compact structure, and can leave visible the movement of the watch, and which allows the display of the date, using numbers large enough to be read easily.
  • the first and second racks are gear wheels.
  • Each tooth of the second rack corresponds to a specific day as they are noted. Every day the first star wheel of ten teeth is operated by the second rack, except in the night of 31st to 1st, in the the second rack does not have a tooth corresponding to this position. The roller associated with this rack does not rotate, and continue to indicate the number 1.
  • a finger attached to the first rack corresponds at the day position No. 1 of the second rack that does not have any tooth. This finger actuates the lever that passes the corresponding roller from 3 to 0. The display changes from 31 to 01.
  • the fingers actuating the star wheel driving the roll of tens are positioned to arm the system a few moments before the moment of change of date, and to position the number of tens exactly at the specified time. This is an instant operation. In Regarding the roll of units, it is semi-driven Instant.
  • the second rack has teeth on edge meshing with the first star wheel, which is located in a plane perpendicular to the plane of the rack.
  • the mechanism drive of the second star wheel is constituted by a mounted lever pivoting in the middle about an axis perpendicular to the plane of the first rack, one end of which is intended to be actuated by the different fingers, and whose other end is equipped with a spring-blade bearing against a tooth of the second star wheel, and intended to rotate it when pivoting the lever.
  • first and second racks and the first and second star wheels are each associated with an elastic element, such a so-called spring spring blade, keeping them in a locked position when no external constraint, for example initiated by the mechanism watchmaking, is exercised on them.
  • rolls can occupy different positions on the dial, horizontal or vertical position, and also that different drive elements, such as gear wheels, can be totally hollowed out and occupy only part of the surface of the dial, for example a quarter of the surface of the dial, thus leaving visible the mechanism timepiece of the watch.
  • FIG. 1 represents a wristwatch 2 whose case 3 contains a clockwork mechanism, which exceeds a winding 4, this wristwatch having a dial at which two needles 5, 6 respectively giving the hour and the minutes, and comprising a 7 date display device, which is placed in the lower left quarter of the watch, and presented horizontally, but could be presented in a other location of the dial, for example in the lower right quarter, and in another position, for example in a vertical position, as shown in mixed lines in Figure 1.
  • the date display device comprises two toothed wheels 8 and 9 superimposed, the wheel 8 being located below the wheel 9 in the form execution shown in the drawing.
  • Wheel 8 has thirty-one teeth 10, and is intended to be moved a tooth a day, from a wheel 12 of the mechanism watchmaking.
  • the second wheel 9 has thirty teeth 13, arranged opposite of the first thirty teeth of the first wheel 8, with a vacuum opposite the first tooth of the wheel 8.
  • the wheel 8 On its opposite side to that carrying the wheel 9, the wheel 8 is equipped with four fingers 14 arranged opposite the teeth of the wheel 8 corresponding to the days n ° 1, 10, 20 and 30 of the month.
  • the second wheel 9 meshes with a first star wheel, that is to say a toothed wheel, of axis perpendicular to the axis of the toothed wheel 9, and having ten teeth.
  • This wheel 15 is secured to a roller 16 carrying ten numbers from 0 to 9, corresponding to the units of a date. Training of the star wheel 15 by the toothed wheel 9, spring particularly from FIGS. 2, 3 and 4.
  • the wheel star 19 has eight teeth and roll 20 carries eight numbers, 0, 1, 2, 3, 0, 1, 2, 3 corresponding to the tens of a date.
  • the drive of the star wheel 19 is carried out via a lever 22 articulated on a support, in its central part, about an axis parallel to the axis of the wheel 8, this lever being equipped, at one of its ends, a spring blade 23 bearing on a tooth 24 of the star wheel.
  • This lever can be actuated at its other end by the fingers 14 integral with the wheel 8.
  • the spring blade pushing the tooth 24.
  • the lever escapes the finger 14, it returns to its original position, under the effect of a return spring, the leaf spring 23 sliding under the tooth 24 following the one against which it previously took support.
  • the star wheel 19 is held in position by a jumper spring 25 preventing undesired movement of this wheel and as a result of the associated roll.
  • the wheel 12 causes the wheel 8 each day a notch and therefore the wheel 9 secured to the wheel 8 of a notch.
  • the wheel 9 meshes with the wheel 15, for lead it a notch, causing the change of a unit at the level of 16.
  • this one intervenes by support of fingers 14 arranged respectively opposite the tenth, the twentieth and of the thirtieth tooth of the wheel 8, on the lever 22 associated with the leaf spring 23.
  • the wheels 8 and 9 are driven a notch.
  • the wheel 9 does not have a corresponding tooth, it does not drive not the star wheel 15 of the units nor the associated roller 16.
  • the roll of units continues to indicate 1.
  • the finger 14 corresponding to the position n ° 1 actuates the lever 22 which drives the star wheel 19 and the scroll 20 of the tens to pass the indication of this roll from 3 to 0.
  • the display went from 31 to 01.
  • the invention provides a great improvement to the existing technique, by providing a display device of Compact structure date, does not require the presence of magnifying glass to read the date, but allowing a direct display, and allowing to leave visible the mechanism of the watch.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Eye Examination Apparatus (AREA)
  • Transmission Devices (AREA)
  • Electric Clocks (AREA)
  • Control Of El Displays (AREA)
EP05356068A 2004-05-03 2005-04-20 Datumanzeigevorrichtung für Uhren Expired - Lifetime EP1594019B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0404700 2004-05-03
FR0404700A FR2869697B1 (fr) 2004-05-03 2004-05-03 Dispositif d'affichage de la date sur une montre

Publications (2)

Publication Number Publication Date
EP1594019A1 true EP1594019A1 (de) 2005-11-09
EP1594019B1 EP1594019B1 (de) 2010-04-21

Family

ID=34942700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05356068A Expired - Lifetime EP1594019B1 (de) 2004-05-03 2005-04-20 Datumanzeigevorrichtung für Uhren

Country Status (6)

Country Link
EP (1) EP1594019B1 (de)
AT (1) ATE465437T1 (de)
DE (1) DE602005020710D1 (de)
ES (1) ES2344353T3 (de)
FR (1) FR2869697B1 (de)
PT (1) PT1594019E (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024535579A (ja) * 2021-10-21 2024-09-30 モントレー ブレゲ・エス アー 時計表示機構

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2073275A (en) * 1932-11-28 1937-03-09 Elberg Boris Clock with automatic calendar
DE2122988A1 (de) * 1970-05-04 1971-12-02 Valjoux Sa Zahlmechanismus mit Digitalanzeige

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2073275A (en) * 1932-11-28 1937-03-09 Elberg Boris Clock with automatic calendar
DE2122988A1 (de) * 1970-05-04 1971-12-02 Valjoux Sa Zahlmechanismus mit Digitalanzeige

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024535579A (ja) * 2021-10-21 2024-09-30 モントレー ブレゲ・エス アー 時計表示機構
JP7741317B2 (ja) 2021-10-21 2025-09-17 モントレー ブレゲ・エス アー 時計表示機構

Also Published As

Publication number Publication date
PT1594019E (pt) 2010-07-15
FR2869697B1 (fr) 2006-07-14
ES2344353T3 (es) 2010-08-25
EP1594019B1 (de) 2010-04-21
FR2869697A1 (fr) 2005-11-04
ATE465437T1 (de) 2010-05-15
DE602005020710D1 (de) 2010-06-02

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