EP0935780A1 - Systeme mecanique d'indication du quantieme de grand format pour mouvements de montres et pendulettes - Google Patents
Systeme mecanique d'indication du quantieme de grand format pour mouvements de montres et pendulettesInfo
- Publication number
- EP0935780A1 EP0935780A1 EP98916776A EP98916776A EP0935780A1 EP 0935780 A1 EP0935780 A1 EP 0935780A1 EP 98916776 A EP98916776 A EP 98916776A EP 98916776 A EP98916776 A EP 98916776A EP 0935780 A1 EP0935780 A1 EP 0935780A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tens
- crown
- units
- teeth
- mechanism according
- 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
Links
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
Definitions
- the object of the present invention is to provide a large format date display mechanism for all watch movements, in particular watches and clocks, allowing easy reading of the date, the construction of which is simple since it requires and combines a reduced number of parts and mobiles.
- This invention also aims to reduce the volume (in particular by reducing the height) of the above-described mechanism and to make it, once the preassembled mobiles easily adaptable to all existing watch movements comprising a traditional date indication by crown, since this mechanism can be driven by the date crown of the movement of the watch concerned which will be modified accordingly.
- the subject of this invention is a large format date display mechanism for all movements of watches and clocks making it possible to achieve the above-described aim and comprising the characteristics defined in claim 1.
- the appended drawing schematically illustrates in an exploded view the large format date display mechanism which has three mobiles.
- the mechanism can be illustrated by the following five plans:
- Plan C plate surrounding the crown (s) of plane B intended to be fixed to the watch movement
- - Plan D system comprising independent vertical axes each supporting a toothed star (number of different teeth) and a display disc (second and third mobile)
- the mechanism firstly comprises a programmed crown 1 intended either to replace the original date crown, or to be fixed to this original crown 2.
- This programmed crown has two teeth each representing a path and both composed of 31 teeth, of variable length, height and size.
- a kinematic chain drives this crown at the rate of one step per day from the hour wheel of the watch movement (plane A) to complete a rotation in 31 days.
- This training is discontinuous and the step takes place around midnight each day.
- This programmed crown 1 could also be driven by a stepping motor (quartz movement) and a gear driven by this motor, motor controlled by an electronic movement timepiece.
- the programmed toothed crown has an internal toothing 3 of 31 teeth forming the drive path of the units and an internal toothing 4 of 31 teeth also forming the drive path of the tens of the date display.
- the teeth 3 and 4 can be in the same plane in which case the teeth forming the tens path will be longer than those of the teeth forming the units path.
- the teeth 3 and 4 can equally be offset in height so that the teeth forming the path of the units lie in a higher plane than the teeth forming the path of the tens.
- the plane C consists of a plate 5 surrounding the programmed crown and intended to be fixed to the movement of the watch (plane A).
- This plate 5 includes a light in an arc 6 allowing the passage of the date crown (1 or combination 1, 2 of the programmed crown).
- This mechanism also includes a mobile unit and a mobile tens.
- the unit mobile consists of a unit star 7 of 10 integral teeth, a unit display disc 8 having on its upper surface numbers from 0 to 9 tangentially arranged and distributed uniformly along the periphery of this drive units 8.
- This mobile unit 7, 8 pivots on the plate 5 and remains held by a screw 9; it is positioned so that the teeth of the star of the units 7 are at the same level as the path formed by the internal toothing 3 of the programmed crown.
- the tens mobile is made up of a tens star 10 of 4, 8 or 1 2 integral teeth, a tens display disc 1 1 having on its upper surface numbers from 0 to 3 (one, two or three sets of numbers) arranged tangentially and evenly distributed along the periphery of this tens tens 1 1 disc.
- This tens 1 1 mobile pivots on the plate 5 and is held by an axial screw 1 2; it is positioned so that the teeth of the tens star 10 are at the same level as the path formed by the internal toothing 4 of the programmed crown.
- a spring with two branches 1 3 is fixed on the plate 5 by an axial screw 14 and each of these branches constitutes a jumper coming into contact with the stars 7 and 10 to block their angular parts between two successive actuations.
- the two mobiles respectively made up of star teeth 7, of the display disc 8 as well as of the axial screw 9, for one, and of star teeth 10, of the display disc 1 1 as well as of the axial screw 1 2 , for the other, are completely independent of each other.
- the mechanism is provided with a dial 1 5 pierced with a large window 1 6 with 2 windows of a dimension, in principle a minimum of 2 ⁇ 4 mm, dial which covers the entire mechanism and is fixed using feet. 1 7 (4 in number) on deck 5.
- the display disc of the units advances one step per day and performs a complete revolution in 10 days thus annotating for each day the number of units corresponding to the date in the window 1 6 of the dial 1 5 unless it is the third revolution which takes place in 1 1 days, the path programmed by the toothing 3 leaving inactivates a tooth when unit 1 goes from the 31st day of a month to the first day of the following month.
- the tens 1 1 disc advances by one, two or three steps every ten days so that the number corresponding to the tens of the date appears in the window 1 6 of the dial 1 5.
- the tens disc 1 1 performs a revolution in 1, 2 or 3 months.
- This mechanism makes it possible to have the large window 16 of the dial 1 5 at numerous points on the dial surface 15 provided that the two display discs are fixed symmetrically on each side of an axis so that the tens and the units meet and are displayed respectively to the left and to the right of the tangent point.
- topological implantation of the mechanism, object of this invention allows a variation of arrangement of the window going on an open angle between 1 1 H and 1 H on the top of the dial and on an open angle between 5H and 7H on the bottom of the dial.
- the mechanism has a very limited number of parts and only three mobiles (two mobiles on the D plane and one mobile on the B plane). It can be fully assembled and pre-shown on the plate 5 with the exception of the programmed crown 1 which is placed on the movement.
- the plate is then equipped with the dial which will allow the display of the large date calendar.
- the window 16 is twice as large as that of a conventional window.
- the volume of the mechanism is very low, which allows adaptation to all currently existing movements providing for the display of the date.
- this invention aims to manufacture and produce a movement of watches or clocks provided with a large format date display mechanism as described above.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH106497 | 1997-05-07 | ||
CH106497 | 1997-05-07 | ||
PCT/CH1998/000184 WO1998050829A1 (fr) | 1997-05-07 | 1998-05-06 | Systeme mecanique d'indication du quantieme de grand format pour mouvements de montres et pendulettes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0935780A1 true EP0935780A1 (fr) | 1999-08-18 |
EP0935780B1 EP0935780B1 (fr) | 2002-09-11 |
Family
ID=4201614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98916776A Expired - Lifetime EP0935780B1 (fr) | 1997-05-07 | 1998-05-06 | Systeme mecanique d'indication du quantieme de grand format pour mouvements de montres et pendulettes |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0935780B1 (fr) |
JP (1) | JP3322678B2 (fr) |
AT (1) | ATE224069T1 (fr) |
CA (1) | CA2260261A1 (fr) |
DE (1) | DE69807836T2 (fr) |
EA (1) | EA001011B1 (fr) |
ES (1) | ES2182295T3 (fr) |
WO (1) | WO1998050829A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG102647A1 (en) * | 2000-12-22 | 2004-03-26 | Ebauchesfabrik Eta Ag | Timepiece provided with a date having a large aperture |
CH696045A5 (fr) * | 2003-03-25 | 2006-11-30 | Richemont Int Sa | Mécanisme d'affichage du quantième. |
JP4546170B2 (ja) * | 2004-06-30 | 2010-09-15 | セイコーインスツル株式会社 | 表示日付機構、及び日付表示機構を備えた時計 |
JP4692967B2 (ja) * | 2006-01-27 | 2011-06-01 | セイコーインスツル株式会社 | 偏心配置した2つの日車を有するカレンダ時計 |
CH705216B1 (fr) | 2008-05-21 | 2013-01-15 | Zeitwinkel Ag | Mécanisme de quantième. |
CH700668B1 (de) * | 2009-03-19 | 2020-10-30 | Bucherer Ag | Uhr mit einer digitalen datumsanzeige. |
JP5300019B2 (ja) | 2009-09-07 | 2013-09-25 | セイコーインスツル株式会社 | 2つの日車を含むカレンダ機構付き時計 |
EP3904962B1 (fr) | 2020-05-01 | 2023-08-02 | Rolex Sa | Dispositif d'indexation et dispositif d'affichage d'une indication horaire ou dérivée de l'heure |
EP3904964B1 (fr) | 2020-05-01 | 2023-03-08 | Rolex Sa | Dispositif d'affichage d'une indication horaire ou dérivée de l'heure et dispositif d'indexation |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR954806A (fr) * | 1950-01-06 | |||
CH310559A (fr) * | 1953-07-03 | 1955-10-31 | Fontainemelon Horlogerie | Pièce d'horlogerie à quantièmes. |
CH59773A4 (fr) * | 1973-01-16 | 1976-02-13 | ||
CH624534GA3 (fr) * | 1979-04-04 | 1981-08-14 |
-
1998
- 1998-05-06 CA CA002260261A patent/CA2260261A1/fr not_active Abandoned
- 1998-05-06 EP EP98916776A patent/EP0935780B1/fr not_active Expired - Lifetime
- 1998-05-06 WO PCT/CH1998/000184 patent/WO1998050829A1/fr active IP Right Grant
- 1998-05-06 EA EA199900056A patent/EA001011B1/ru not_active IP Right Cessation
- 1998-05-06 AT AT98916776T patent/ATE224069T1/de not_active IP Right Cessation
- 1998-05-06 ES ES98916776T patent/ES2182295T3/es not_active Expired - Lifetime
- 1998-05-06 DE DE69807836T patent/DE69807836T2/de not_active Expired - Fee Related
- 1998-05-06 JP JP54759398A patent/JP3322678B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9850829A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1998050829A1 (fr) | 1998-11-12 |
JP2000505909A (ja) | 2000-05-16 |
DE69807836D1 (de) | 2002-10-17 |
ATE224069T1 (de) | 2002-09-15 |
EP0935780B1 (fr) | 2002-09-11 |
CA2260261A1 (fr) | 1998-11-12 |
ES2182295T3 (es) | 2003-03-01 |
JP3322678B2 (ja) | 2002-09-09 |
EA199900056A1 (ru) | 1999-06-24 |
EA001011B1 (ru) | 2000-08-28 |
DE69807836T2 (de) | 2003-06-18 |
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