US3696609A - Timepiece having oscillating rotation indicator - Google Patents

Timepiece having oscillating rotation indicator Download PDF

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Publication number
US3696609A
US3696609A US128058A US3696609DA US3696609A US 3696609 A US3696609 A US 3696609A US 128058 A US128058 A US 128058A US 3696609D A US3696609D A US 3696609DA US 3696609 A US3696609 A US 3696609A
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United States
Prior art keywords
cam
lever
indicator
snail
pinion
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Expired - Lifetime
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US128058A
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English (en)
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Gerald Dubois
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Individual
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    • 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
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04B19/06—Dials
    • G04B19/08—Geometrical arrangement of the graduations
    • G04B19/082—Geometrical arrangement of the graduations varying from the normal closed scale

Definitions

  • ABSTRACT A timepiece with an oscillating rotating indicator, accomplishing slow displacements followed by instantaneous return to initial starting position, characterized by the fact that it comprises at least one snailshaped cam driving an oscillating rotating levercontrolling the indicator, the lever being pressed against the cam by an elastic return device, the slow travelling of the indicator resulting from the lever climbing the snail-cam and its instantaneous return resulting from the lever falling along the sharply cut edge of the cam, when the cam rotates.
  • the present invention concerns a timepiece having an oscillating rotating indicator. Said indicator accomplishes slow displacements followed by instantaneous come-back to initial starting position.
  • This timepiece comprises at least one snail-shaped cam driving an oscillating rotating lever controlling said indicator, said lever being pressed against said cam by an elastic return device, the slow travelling of the indicator resulting from the lever climbing the snail-cam and its instantaneous return resulting from said lever falling along the cut edge side of the cam, when the cam rotates.
  • FIG. 1 is a plan view of a wrist-watch.
  • FIG. 2 is a plan view of a pendent-watch.
  • FIG. 3 is a plane view of an independent frame-work which can be attached to the clockwork movement of either one or the other watch of FIG. 1 and FIG. 2, at an enlarged scale.
  • FIG. 4 is a scaled-up sectional view along line [V -IV I of FIG. 3, at an enlarged scale.
  • FIG. 5 is a sectional view, along line V+-V of FIG. 3, at the scale of FIG; 4, and I FIG. 6 and 7 are sectional views of two portions of the mechanism, for showing the details.
  • the wrist-watch of FIG. 1 has a minute-hand 2 and an hour-hand 1 which pivot at a point 3 located outside of the center of the clock-work. They travel slowly in the direction of the arrow 4 and come back instantaneously to their starting position.
  • the calibration 6 of the dial 5 is an arc concentric to point 3. This calibration has two scales; the outside scale 7 has sixty divisions for showing the minutes with hand 2, the inside scale 8 has twelve divisions for indicating the hours by means of hand 1.
  • scale 7 goes, left to right, from five to sixty, thirty being in the middle
  • scale 8 goes, left to right, from one to 12, six being in the middle. It is however possible to have scale 8 with the figure twelve in the center and six being at the beginning and at the end of said scale.
  • the watch shown in FIG. 2 is a pendent-watch the case 9 of which partially overlaps dial 10. This way, only the tips of hands 11 and 12 are visible. These hands have their pivot in the vicinityof the pendentclip 13, outside of the center of the clockwork.
  • the calibration is similar to that of the wrist-watch of FIG. 1.
  • the work of these two watches comprise two snailcams 16 and 17 respectively mounted on the hourwheel 14 and on the cannon pinion (FIG. 4), in lieu of the usual hour and minute-hands, respectively.
  • These cams are driving a mechanism which is entirely carried by an independent frame-work which comprises a base-plate 18 and a stirrup shaped brace 19 which covers the outside part of said base-plate.
  • Said base-plate is attached to the base-plate of the clockwork in lieu of the ordinary dial, by means of feet not shown which fit the usual dialfoot holes.
  • the watch-dial 5 or 10, according to FIG. 1 or FIG. 2 is mounted on the brace 19.
  • the independent frame-work carries the mechanism which comprises two oscillating rotating levers 21 and 22, mounted coaxially one above the other, separated by a brace 23, both hinged on a journal 24 carried by the independent frame-work base-plate 18.
  • Each lever has two arms; one of these arms, designated with reference to the two levers, by 21a and 22a respectively, carries a pawl 27, respectively 28, hinged in 25, respectively in 26, and drawn back by a return-spring 29, respectively 30, said spring being attached to the corresponding lever.
  • each lever 21 or 23 has a toothed are or sector 21c, respectively 22c, in mesh with a pinion 31, respectively 32.
  • These two pinions are coaxial and bush-type; the first is engaged on a swivel-pin 33 carried by the plate 18, the second being engaged on the bushing of the first one.
  • Pinions 31 and 32 carry the hourand minutehands respectively. These are shown by 1 and 2, or by 11 and 12 in FIG. 1 or 2 respectively.
  • Pinions 31 and 32 are held in place by an excentric attached to plate 18 and bearing on a disc 35 forced on pinion 32 (FIG. 6).
  • Pinions 31 and 32 mesh with two toothed-sectors 36 and 37 placed coaxially and one above the other on a journal 38 carried by the plate 18. Sectors 36 and 37 are secured by a screw 39 carried by plate 18 (FIG. 7).
  • Each of these sectors 36 and 37 respectively carry a peg 40, respectively 41, on which rests a blade-spring 42, respectively 43, said springs being retained by two lugs 44 and 45 of the plate 18.
  • springs 42 and 43 respectively work to elastically press oscillating levers 21 and 22 on cams 16 and 17 respectively, by means of pawls 27 and 28 respectively.
  • the cams turn clockwise, they slowly rock levers 21 and 22 backwards, driving pinions 31 and 32 clockwise and bending progressively springs 42 and 43.
  • gear-ratio between pinions 31 and 32 and toothed-sectors 36 and 37 is such that the amplitude of the rotating stroke of the sectors is smaller than the amplitude of rotation of the pinions.
  • the position of one of the cams can be adjusted with regard to the other.
  • the cam 16 carries an excentric 46 -(FIG. 3 and 4) fitted in an elongated aperture 47 of a plate 48 mounted on a hub 49 itself mounted on the hour-wheel 14.
  • the excentric 46 can be turned with a screw-driver through opening 50 of the snail-cam 17; this modifies slightly the position of cam 16 with respect to cam 17 and facilitates fine adjustments.
  • Pawls 27 and 28 being hinged on levers 21 and 22 respectively and being elastically retained only by springs 29 and 30, they are able to mo-e against this retaining action in the case whether the cams turn anticlockwise, e.g. when the hands on the watch are re-set manually. This move of the pawls prevents a damage to the mechanism which would otherwise occur if armends 21a and 22a respectively were to directly hit the sharp edge on cams 16 and 17 respectively.
  • cams 16 and 17 are carried by an independent frame-work, that is base-plate l8 and brace v 19; thus the regular dial by bottom-plate 18.
  • the camsthu's appear through a central opening of the plate 18 so as to rest at a level above the level of the plate 18, that is to say at the level of the pawls 27 and 28 which thus correctly engage on the cams.
  • the disposition of the present invention can be applied to any type of watch pocket or wrist-watch with manual or automatic winding-system,'of any sizes; it
  • Timepiece with oscillating rotating indicator accomplishing slow displacements followed by instantaneous return to initial starting position and comprising: at least one snail-shaped cam driving an oscillating rotating lever controlling the indicator, the lever being pressed against the cam by an elastic return device, the slow travelling of the indicator resulting from the lever climbing the cam and its instantaneous return resulting from the lever falling along the sharply cut edge of the cam as the cam rotates characterized'by-the fact that it comprises an elastically-returned pawl hingedon the lever, the pawl being in contact with the cam, the pawl being biased to give way when the cam turns backwardly.
  • Timepiece with oscillating rotating indicator accomplishing slow' displacements followed by instantaneous return to initial starting position and comprising: at least one snail-shaped cam driving an oscillating rotating lever controlling the indicator, the lever being pressed against the cam by an elastic return device, the slow travelling of the indicator resulting from the lever climbing the snail-cam and its instantaneous return resulting from the lever falling along a sharply cut edge of the cam when the cam rotates, the lever having'two arms with one of the arms coacting with the snail-cam and the other of the arms driving the indicator, and the other of the arms of the lever having a toothed-arc meshing with a pinion integral with the indicator and characterized by the fact that the elastic return device comprises a toothed-sector meshing with the pinion, the sector carrying a journal on which bears a control return spring.
  • Timepiece as claimed in claim 2 and characterized by the fact that: the gear-ratio between the pinion and toothed-sector controlled by a return spring is such that the rotating stroke of the sector has a smaller amplitude than the rotating stroke of the pinion and of the indicator carried by the pinion.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Electromechanical Clocks (AREA)
US128058A 1970-03-26 1971-03-25 Timepiece having oscillating rotation indicator Expired - Lifetime US3696609A (en)

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CH460070 1970-03-26

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US (1) US3696609A (enrdf_load_stackoverflow)
CH (1) CH544957A (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0869410A1 (fr) * 1997-04-04 1998-10-07 Gerald Genta S.A. Pièce d'horlogerie, notamment montre-bracelet
EP0851321A3 (en) * 1996-12-26 1999-12-08 Seiko Instruments Inc. Multi-functional timepiece
US6327226B1 (en) * 1997-03-21 2001-12-04 Luca Russi Clock with cam device
US6351435B1 (en) * 1998-12-24 2002-02-26 Mannesmann Vdo Ag Display having at least one hand, in particular for timepieces
US6577558B1 (en) * 1998-04-30 2003-06-10 Giuseppe Ricci Watch
US7038974B2 (en) * 2003-10-13 2006-05-02 Daniel Roth & Gerald Genta Haute Horlogerie S.A. Timepiece comprising and annual or perpetual date display mechanism
US20080106979A1 (en) * 2006-11-06 2008-05-08 Eta Sa Manufacture Horlogere Suisse Timepiece including a mechanism for correcting a device displaying a time related quantity
US20080159082A1 (en) * 2005-01-24 2008-07-03 Seiko Epson Corporation Display Device For Timepiece, Movement, and Timepiece
US20080253235A1 (en) * 2004-11-10 2008-10-16 Seiko Epson Corporation Timepiece Display Apparatus, Movement, and Timepiece
US20080310259A1 (en) * 2006-03-30 2008-12-18 Ronda Ag Mechanism for moving an indicator of a clock
US20090185453A1 (en) * 2006-08-01 2009-07-23 Agenhor Sa Timepiece movement for driving a display element along a complex path and timepiece comprising such a movement
US20100246341A1 (en) * 2006-03-29 2010-09-30 Girard-Perregaux S.A. Movement for timepiece with retrograde display
JP2013181907A (ja) * 2012-03-02 2013-09-12 Seiko Instruments Inc レトログラード表示機構、ムーブメント、レトログラード表示機構を備えたアナログ時計及び動力切替方法
JP2014159999A (ja) * 2013-02-19 2014-09-04 Seiko Instruments Inc レトログラード表示機構並びに該機構を備えたムーブメント及びアナログ時計
CN108051993A (zh) * 2017-10-23 2018-05-18 天芯智能（深圳）股份有限公司 一种智能手表的显示方法、系统及智能手表
CH713354A1 (fr) * 2017-01-13 2018-07-13 Mft Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle S A Mécanisme pour pièce d'horlogerie comportant une came et un palpeur, notamment pour montre régate ou montre à sonnerie.
US11163266B2 (en) * 2017-11-20 2021-11-02 Montres Breguet S.A. Timepiece mechanism for returning the seconds hand to zero with a snail cam
US20230081165A1 (en) * 2020-02-13 2023-03-16 Tomio Kakimi Calendar

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH676309B5 (enrdf_load_stackoverflow) * 1989-03-30 1991-07-15 Phare Jean D Eve Sa Le
SG144061A1 (en) * 2006-12-23 2008-07-29 Franck Muller Watchland S A On-demand display device for a timepiece
EP2159652A1 (fr) * 2008-08-26 2010-03-03 Agenhor SA Mécanisme d'affichage pour pièce d'horlogerie permettant d'afficher ou non l'heure courante

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT322586A (enrdf_load_stackoverflow) *
IT559924A (enrdf_load_stackoverflow) *
US788797A (en) * 1903-06-09 1905-05-02 Giovanni Sgherlino Clock or watch movement.
US864177A (en) * 1904-03-22 1907-08-27 Gabriel Lopez Mantaras Watch.
AT46232B (de) * 1909-10-14 1911-02-10 Heinrich Meisinger Uhr.
FR480026A (fr) * 1914-04-09 1916-06-07 Gustave Lecoultre Montre
US1350131A (en) * 1919-06-20 1920-08-17 Cortland L Hill Clock
DE361587C (de) * 1922-10-16 Max Diehl Uhren mit zurueckschwingendem Zeiger, insbesondere fuer Vierundzwanzigstundenteilung
US1465045A (en) * 1921-11-29 1923-08-14 Maximilian H Kern Clock
FR743618A (enrdf_load_stackoverflow) * 1933-04-03
US2292458A (en) * 1941-02-04 1942-08-11 Otto H Maser Clock
CH339138A (de) * 1957-11-22 1959-06-15 Schmidt Gebr Metallwarenfab Uhr, welche eine Vertikal-Sonnenuhr mit Gnomon darstellt

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT322586A (enrdf_load_stackoverflow) *
IT559924A (enrdf_load_stackoverflow) *
DE361587C (de) * 1922-10-16 Max Diehl Uhren mit zurueckschwingendem Zeiger, insbesondere fuer Vierundzwanzigstundenteilung
FR743618A (enrdf_load_stackoverflow) * 1933-04-03
US788797A (en) * 1903-06-09 1905-05-02 Giovanni Sgherlino Clock or watch movement.
US864177A (en) * 1904-03-22 1907-08-27 Gabriel Lopez Mantaras Watch.
AT46232B (de) * 1909-10-14 1911-02-10 Heinrich Meisinger Uhr.
FR480026A (fr) * 1914-04-09 1916-06-07 Gustave Lecoultre Montre
US1350131A (en) * 1919-06-20 1920-08-17 Cortland L Hill Clock
US1465045A (en) * 1921-11-29 1923-08-14 Maximilian H Kern Clock
US2292458A (en) * 1941-02-04 1942-08-11 Otto H Maser Clock
CH339138A (de) * 1957-11-22 1959-06-15 Schmidt Gebr Metallwarenfab Uhr, welche eine Vertikal-Sonnenuhr mit Gnomon darstellt

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0851321A3 (en) * 1996-12-26 1999-12-08 Seiko Instruments Inc. Multi-functional timepiece
EP0971274A3 (en) * 1996-12-26 2001-03-07 Seiko Instruments Inc. Multi-functional timepiece
US6327226B1 (en) * 1997-03-21 2001-12-04 Luca Russi Clock with cam device
EP0869410A1 (fr) * 1997-04-04 1998-10-07 Gerald Genta S.A. Pièce d'horlogerie, notamment montre-bracelet
US5943299A (en) * 1997-04-04 1999-08-24 Gerald Genta Sa Horological timepiece, in particular wrist watch
US6577558B1 (en) * 1998-04-30 2003-06-10 Giuseppe Ricci Watch
US6351435B1 (en) * 1998-12-24 2002-02-26 Mannesmann Vdo Ag Display having at least one hand, in particular for timepieces
US7038974B2 (en) * 2003-10-13 2006-05-02 Daniel Roth & Gerald Genta Haute Horlogerie S.A. Timepiece comprising and annual or perpetual date display mechanism
US7742364B2 (en) * 2004-11-10 2010-06-22 Seiko Epson Corporation Timepiece display apparatus, movement, and timepiece
US20080253235A1 (en) * 2004-11-10 2008-10-16 Seiko Epson Corporation Timepiece Display Apparatus, Movement, and Timepiece
US20080159082A1 (en) * 2005-01-24 2008-07-03 Seiko Epson Corporation Display Device For Timepiece, Movement, and Timepiece
US7961560B2 (en) * 2005-01-24 2011-06-14 Seiko Epson Corporation Display device for timepiece, movement, and timepiece
US7974156B2 (en) * 2006-03-29 2011-07-05 Sowind S.A. Movement for timepiece with retrograde display
US20100246341A1 (en) * 2006-03-29 2010-09-30 Girard-Perregaux S.A. Movement for timepiece with retrograde display
US20080310259A1 (en) * 2006-03-30 2008-12-18 Ronda Ag Mechanism for moving an indicator of a clock
US7817501B2 (en) 2006-03-30 2010-10-19 Ronda Ag Mechanism for moving an indicator of a clock
US7969824B2 (en) * 2006-08-01 2011-06-28 Agenhor Sa Timepiece movement for driving a display element along a complex path and timepiece comprising such a movement
US20090185453A1 (en) * 2006-08-01 2009-07-23 Agenhor Sa Timepiece movement for driving a display element along a complex path and timepiece comprising such a movement
US20080106979A1 (en) * 2006-11-06 2008-05-08 Eta Sa Manufacture Horlogere Suisse Timepiece including a mechanism for correcting a device displaying a time related quantity
US7625116B2 (en) * 2006-11-06 2009-12-01 Compagnie Des Montres Longines, Francillon Sa Timepiece including a mechanism for correcting a device displaying a time related quantity
CN101178578B (zh) * 2006-11-06 2011-11-30 浪琴弗郎西龙手表有限公司 包括用于调整时间相关量的显示装置的机构的钟表
JP2013181907A (ja) * 2012-03-02 2013-09-12 Seiko Instruments Inc レトログラード表示機構、ムーブメント、レトログラード表示機構を備えたアナログ時計及び動力切替方法
JP2014159999A (ja) * 2013-02-19 2014-09-04 Seiko Instruments Inc レトログラード表示機構並びに該機構を備えたムーブメント及びアナログ時計
CH713354A1 (fr) * 2017-01-13 2018-07-13 Mft Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle S A Mécanisme pour pièce d'horlogerie comportant une came et un palpeur, notamment pour montre régate ou montre à sonnerie.
EP3349072A1 (fr) * 2017-01-13 2018-07-18 Manufacture et fabrique de montres et chronomètres, Ulysse Nardin Le Locle S.A. Mécanisme pour pièce d horlogerie comportant une came et un palpeur
CN108051993A (zh) * 2017-10-23 2018-05-18 天芯智能（深圳）股份有限公司 一种智能手表的显示方法、系统及智能手表
US11163266B2 (en) * 2017-11-20 2021-11-02 Montres Breguet S.A. Timepiece mechanism for returning the seconds hand to zero with a snail cam
US20230081165A1 (en) * 2020-02-13 2023-03-16 Tomio Kakimi Calendar
US12158733B2 (en) * 2020-02-13 2024-12-03 Tomio Kakimi Calendar

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Publication number Publication date
CH544957A (fr) 1974-01-15
CH1190071A4 (enrdf_load_stackoverflow) 1973-06-29

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