US3713287A - Calendar-watch - Google Patents

Calendar-watch Download PDF

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Publication number
US3713287A
US3713287A US00152804A US3713287DA US3713287A US 3713287 A US3713287 A US 3713287A US 00152804 A US00152804 A US 00152804A US 3713287D A US3713287D A US 3713287DA US 3713287 A US3713287 A US 3713287A
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US
United States
Prior art keywords
teeth
pawls
jumper
rings
ring
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
US00152804A
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English (en)
Inventor
K Vogt
R Maillard
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.)
Omega Louis Brandt and Frere SA
Original Assignee
Omega Louis Brandt and Frere 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 Omega Louis Brandt and Frere SA filed Critical Omega Louis Brandt and Frere SA
Application granted granted Critical
Publication of US3713287A publication Critical patent/US3713287A/en
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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

Definitions

  • ABSTRACT A calender watch movement comprises day and date indicators respectively having rings of teeth, a single jumper with two pawls respectively engaging said rings of teeth, and return spring means biasing said jumper to engage said pawls with said rings of teeth, said jumper comprising two parts, each carrying one of the pawls, which are relatively adjustable to assure the exact angular positions of said pawls.
  • a calendar watch movement comprising a day and a date indicator, wherein one of the indicators may have internal teeth and the other external teeth, both being stepwise driven at intervals of 24 hours by the watch movement.
  • the movement comprises a single jumper biased by return spring means, said jumper having two angularly adjustable parts, each carrying a pawl engaging respectively the teeth of the date indicator and the teeth of the day indicator, to assure their exact angular positions, and means for adjusting the angular relation between said parts.
  • the adjusting means preferably comprises an eccentric pivotally mounted on one part and straddled by spaced arms on the other of said parts.
  • FIGURE is a plan view of a preferred embodiment of the calendar watch movement in accordance with the present invention.
  • the calendar watch movement shown in the drawing includes a date indicator which'comprises a disc 1 having 31 internal teeth 2.
  • the disc 1 is provided on its upper face with numerals sequentially corresponding in number to the respective teeth; not illustrated, which are located to appear in an aperture in the watch dial in the usual manner.
  • the watch movement includes a day indicator 3 which comprises a star wheel having fourteen external teeth 4.
  • the star wheel 3 is rigidly connected to a disc, not shown, and on which appear two series of names of the days of a week (MON, TUE, etc.) which also appears in an aperture in the watch dial in the usual manner. It is advantageous if both indications appear in the same aperture.
  • Indicators 1 and 3 of this type are well known per se in the art.
  • a single jumper 5 is pivotably mounted on a pin 6 carried by the watch frame not shown.
  • the jumper 5 is constituted by two parts 50 and 5b, both pivotal on the pin 6.
  • An adjusting means preferably on eccentric 7, having a shank and a slotted head, has its shank friction-fitted into the part 5a and its slotted head engaged between bifurcations of spaced arms 8 of the part 5b.
  • the part 5a has at its force end a pawl which engages the teeth 2 of the date indicator 1.
  • part 5b has a pawl 10 which engages the teeth 4 of the day indicator 3.
  • a return spring 11 fixed on the watch frame bears laterally against part 5a and urges the pawls 9 and 10 toward the teeth 2 and 4 of the indicators 1 and 3, respectively.
  • the adjustment effected by the eccentric 7 regulates the depth of engagement of the pawls 9 and 10 between the respective teeth, thereby compensating for tolerances of manufacturing.
  • the jumper 5 assures a correct angular position of the indicators 1 and 3, favorable to a proper function of the calendar.
  • the necessary power for operating a calendar device may thus be reduced by using a single return spring, this being the consequence of using a single jumper for both indicators. In this way the resistance to be overcome when the indicators jump, is also reduced.
  • a calendar watch movement comprising:
  • a rotatably mounted day indicator having a ring of teeth
  • a rotatably mounted date indicator having a ring of teeth
  • a pivotably mounted jumper carrying two pawls respectively engaged with said rings of teeth; spring means biasing said jumper to engage said pawls respectively with said rings of teeth, and
  • said jumper comprising two angularly adjustable parts, each carrying one of said pawls, and means engaged between said parts for adjusting their angular relation to regulate the depth of engagement of said pawls between the teeth of said rings.
  • said indicators being disposed concentrically with the ring of internal teeth spaced outwardly of the ring of external teeth
  • said jumper being disposed between said rings of teeth.
  • said means also comprises bifurcations on the other of said parts and straddling said eccentric.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US00152804A 1970-06-30 1971-06-14 Calendar-watch Expired - Lifetime US3713287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH986270A CH528767A (fr) 1970-06-30 1970-06-30 Montre-calendrier

Publications (1)

Publication Number Publication Date
US3713287A true US3713287A (en) 1973-01-30

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ID=4356487

Family Applications (1)

Application Number Title Priority Date Filing Date
US00152804A Expired - Lifetime US3713287A (en) 1970-06-30 1971-06-14 Calendar-watch

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US (1) US3713287A (enrdf_load_stackoverflow)
CH (2) CH986270A4 (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888076A (en) * 1973-10-10 1975-06-10 Schild Sa A Calender-watch movement
US20090316534A1 (en) * 2008-06-16 2009-12-24 Kei Hirano Day display apparatus and watch having the same
US20100103780A1 (en) * 2008-10-24 2010-04-29 Eta Sa Manufacture Horlogere Suisse Device that assists in maintaining the position of a date indicator disc for a timepiece
CN113589672A (zh) * 2020-05-01 2021-11-02 劳力士有限公司 用于时间的或由时间得出的读数的显示装置以及转位装置
US11921460B2 (en) 2020-05-01 2024-03-05 Rolex Sa Device for displaying an indication of time or derived from the time and indexing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH290654A (fr) * 1951-05-16 1953-05-15 Ebauches Sa Montre-calendrier.
CH367760A (fr) * 1961-02-03 1962-11-15 Venus Ebauches Montre-calendrier
US3451211A (en) * 1966-11-30 1969-06-24 Seiko Instr & Electronics Calendar watches

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH290654A (fr) * 1951-05-16 1953-05-15 Ebauches Sa Montre-calendrier.
CH367760A (fr) * 1961-02-03 1962-11-15 Venus Ebauches Montre-calendrier
US3451211A (en) * 1966-11-30 1969-06-24 Seiko Instr & Electronics Calendar watches

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888076A (en) * 1973-10-10 1975-06-10 Schild Sa A Calender-watch movement
US20090316534A1 (en) * 2008-06-16 2009-12-24 Kei Hirano Day display apparatus and watch having the same
US7961556B2 (en) * 2008-06-16 2011-06-14 Seiko Instruments Inc. Day display apparatus and watch having the same
US20100103780A1 (en) * 2008-10-24 2010-04-29 Eta Sa Manufacture Horlogere Suisse Device that assists in maintaining the position of a date indicator disc for a timepiece
US8040759B2 (en) * 2008-10-24 2011-10-18 Eta Sa Manufacture Horlogère Suisse Device that assists in maintaining the position of a date indicator disc for a timepiece
CN113589672A (zh) * 2020-05-01 2021-11-02 劳力士有限公司 用于时间的或由时间得出的读数的显示装置以及转位装置
JP2021183962A (ja) * 2020-05-01 2021-12-02 ロレックス・ソシエテ・アノニムRolex Sa 時間のまたは時間から派生したインジケーションを表示する装置及び割出装置
US11921460B2 (en) 2020-05-01 2024-03-05 Rolex Sa Device for displaying an indication of time or derived from the time and indexing device
US12259688B2 (en) 2020-05-01 2025-03-25 Rolex Sa Device for displaying an indication of time or derived from the time and indexing device

Also Published As

Publication number Publication date
CH986270A4 (enrdf_load_stackoverflow) 1972-06-15
CH528767A (fr) 1972-06-15

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