US3413800A - Calendar correction mechanism for a watch movement - Google Patents

Calendar correction mechanism for a watch movement Download PDF

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Publication number
US3413800A
US3413800A US555478A US55547866A US3413800A US 3413800 A US3413800 A US 3413800A US 555478 A US555478 A US 555478A US 55547866 A US55547866 A US 55547866A US 3413800 A US3413800 A US 3413800A
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United States
Prior art keywords
rocker
date
lever
setting
movement
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Expired - Lifetime
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US555478A
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English (en)
Inventor
Dubois Georges
Cherbuin Fernand
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A Schild SA
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A Schild SA
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Publication date
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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
    • G04B19/24—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
    • G04B19/25—Devices for setting the date indicators manually

Definitions

  • the present invention is directed to an improved date indicating mechanism in time watches.
  • a date indicating device It well known to provide a time piece with a date indicating device in addition to the usual hour, minute, and second hands thereof. Since the calendar months vary as to number of days therein, it is necessary that a date indicating device include a date correction means which functions, for example, to advance the mechanism by one day at the end of a thirty day month or by three days at the end of a twenty-eight day month.
  • the object of this invention is to provide an improved date correction means in a date indicating device which is incorporated in a time watch movement.
  • FIGURE 1 is a partial plan view of a device according to this invention with the parts thereof being in a first operative position;
  • FIGURE 2 is an enlarged partial sectional view taken along line II-II in FIGURE 1;
  • FIGURE 3 is a view corresponding to FIGURE 1 but showing the parts in a second operative position.
  • the disclosed watch comprises a pillar plate 1 on which is rotatably mounted a circular date ring 2 whose inner peripheral surface includes thirty-one teeth 3.
  • a radial surface of the date ring has marked thereon numerical characters from one to thirty-one corresponding respectively to each one of the teeth 3, said characters being individually visible through a Window provided in a dial plate which extends over the pillar plate 1.
  • the dial plate and the numerical characters are not shown in the drawing.
  • the ring 2 is normally displaced in the counterclockwise direction.
  • a earn 4 which has a tooth like projection 5 pivots on a shouldered screw 6 fastened to the pillar plate 1.
  • Cam 4 is driven in a counterclockwise direction to the extent of one revolution every twenty-four hours through its being firmly or rigidly connected with a calendar wheel (not shown) which is in engagement with an element of the watch movement.
  • the calendar wheel may, for example, be in 3,413,800 Patented Dec. 3, 1968 engagement with a wheel rigidly connected to the hour wheel of the movement.
  • a rocker 8 is pivotally mounted on a stud 7 fastened to the plate 1 by means of stud 7 extending through an elongated opening '9 in said rocker 8.
  • Elongated opening 9 permits the rocker to be pivotally mounted on said stud 7 while also permitting axial displacement of the rocker in a manner and for purposes which will be explained below.
  • Rocker 8 is configured so as to include a tooth 10 and a triangular-shaped nose portion 11 each located on opposite sides of pivot pin 7. Tooth 10 lies in the rotary path of nose 5 while nose 11 rests against one of the teeth 3.
  • a click 12 is pivotally mounted on rocker 8 by means of a flat headed stud 13 which is fastened to the rocker by being crimped around an opening in said rocker.
  • Stud 13 includes a smooth cylindrical pin .14 which extends axially beyond the surface of rocker 8.
  • a spring plate 15 is fastened at one of its ends to the pillar plate 1 and includes a resilient arm 16 having a free end which bears laterally against a boss 17 formed along the edged surface of the rocker 8 between the opening 9 and the nose 11.
  • Spring 16 serves to normally maintain rocker 8 pivotally biased in a counterclockwise direction relative to stud 7 with the nose 11 hearing against the teeth 3 and with stud 7 bearing against the left-hand end of opening 9, with reference to FIGURE 1.
  • Click 12 is biased in a clockwise direction by a spring wire (not shown) mounted on the rocker 8. Click 12 thereby is urged against a pin 31 also mounted on the rocker.
  • Date ring 2 is normally held stationarily in place by a jumper member 18 of well known construction which is pivoted on the plate 1 and held against the toothing 3 by means of a spring wire 19.
  • the disclosed mechanism also includes a date correcting device.
  • Said device comprises a long correction lever 20 which is pivotally mounted on the pillar plate by means of a shouldered screw 21.
  • Said lever 20 extends along the periphery of the movement frame from the vicinity of the winding and setting mechanism to the rocker 8.
  • the end 22 of lever 20 passes axially adjacent the date ring 2 (below said date ring with reference to FIGURE 1) and has an inclined edge portion 23 which extends across the cylindrical pin 14 of stud 13.
  • a spring blade 24 also mounted on plate 1 bears against lever 20 and urges it in a counterclockwise direction relative to pin 21.
  • the end of lever 20' opposite to end 22 is in contact with a setting lever 25 of the watch movement winding mechanism.
  • the winding mechanism includes a spring 29 which bears against a pin 30 mounted in the setting lever 25 and thereby biases the setting lever 25 in a time setting and winding position.
  • Lever 25 is pivoted on a pin or screw 26 which is located in the vicinity of an opening 27 formed in the pillar plate 1.
  • This opening includes an enlargement in which the winding pinion is engaged and this arrangement permits the clutch pinion to mesh with the setting wheel of the movement.
  • the rocker 28 of the winding mechanism of the movement is shown in winding position and moves radially inward under the action of the setting lever 25 when the winding stem 32 is brought into time-setting position.
  • a slot 33 provided in the pillar plate 1 permits the stud of the setting lever as a matter of fact to penetrate in the customary manner into a groove of a stem 32.
  • the latter has, like certain known winding stems, a third position which can be obtained by exerting a pressure on it from the winding position.
  • the setting lever 25 is then moved in counterclockwise direction as seen in FIGURE 1. This pivoting movement results in a clockwise displacement of the correction lever 20 into the position shown in FIGURE 9.
  • the jumper 18 assures the precise positioning of the ring 2. Therefore, a depression of the winding stem 32 is sufficient to correct by one unit the date figure visible in the opening of the dial.
  • the rocker 8 and the click 12 carry out movements exactly identical to those which have just been described when the nose 5 passes from the position shown in FIGURE 1 to the position shown in FIGURE 3 during the rotation of the calendar runner with which it is rigidly connected. Between these two positions, the rocker 8 pivots progressively cocking the elastic arm 16. However, in the position shown in FIG- URE 3, the rocker 8 is suddenly freed and instantaneously returns into the position shown in the FIGURE 1, the click 12 also causing the date ring 2 to advance by one step.
  • the mechanism described therefore assures a rapid changing of the date both automatically under the effect of the movement and manually by means of the winding stem.
  • the triangular shape of the nose 11 and the elongated opening 9 assure the possibility of driving the cam 4 manually in one direction or the other as desired.
  • the runner which bears this cam is connected to the hour wheel, which in its turn is in engagement with the minute wheel which meshes with the setting wheel, the rotations of the winding stem 32 in time-setting position can be efiected without danger in both directions.
  • the rocker 28 of the setting mechanism is then displaced in counterclockwise direction with respect to the position shown in FIGURE 1 under the action of the setting lever 25 which is driven by the stem 32.
  • the rocker 8 If the nose 5 comes into contact with the finger 10 of the rocker 8 while the cam 4 turns in clockwise direction, the rocker 8 is moved parallel to itself, guided on the one hand by the side of the triangular nose 11 which rests against one of the teeth 3 of the ring 2 and on the other hand by'the elongated opening 9 the orientation of which is selected so as to permit this displacement.
  • the mechanism described therefore, assures in simple manner a rapid changing of date indications and makes it possible to effect a date correction, such as at the end of a thirty day month, by simply exerting an inward pressure on the winding stem.
  • a watch comprising a time movement and a date indicating member, said member being displaceable according to a repetitive cycle consisting of thirty-one increments, drive means connecting said movement to said member, a rotatable winding and setting stem operable to wind and set said movement, said stem being axially displaceable from its winding and setting position into a separate date correcting position, said drive means comprising a rotary member associated with said movement to turn one revolution every twenty-four hours, a displaceable date-setting member engaged with said date indicating member and with said rotary member in a manner whereby for each turn of said rotary member said datesetting member is displaced an amount whereby it displaces said indicating member by one said increment, a date correcting means associated with said date-setting member and with said winding stern in a manner whereby axial displacement of said stem into said correcting position acts through said correcting means to displace said date-setting member independently of said rotary member an amount suflicient to displace said indicating member by one said increment, said date-setting
  • said date correcting means comprises a pivoted correcting lever one end of which is associated with said date-setting member and the other end of which is associated with said winding stern whereby axial displacement of said stem into said date correcting position causes a pivoting of said lever and a consequent displacement of said date-setting memher.
  • said date-setting member is a pivoted rocker drivingly engaged with said date indicating member and with said rotary member in a manner whereby for each twenty-four hours of operation of said movement said rocker is driven by said rotary member to pivot to a cocked position relative to said date indicating member, said one end of said lever being associated with said rocker whereby a pivoting of said lever causes a pivoting of said rocker to said cocked position.
  • the watch of claim 3 including a click pivotally mounted on said rocker, tooth means having a front and a back side on said date-indicating member, first spring means pivotally biasing said click towards said tooth means, second spring means pivotally biasing said rocker in a driving direction relative to said indicating member, said rocker normally resting in a first position whereby said click extends along a front side of said tooth means, said rocker being pivotable against the bias of said second spring means under the pivoting action of either said movement or of said correcting lever to pivot to said cocked position whereby said click is slid over said tooth means to a position along the back side of said tooth means, said rocker being pivotable under the action of said second spring means from said cocked position back to said first position with said click abutting against said tooth means back side.
  • said rocker comprises an elongated pivot hole through which passes a circular pivot pin, said second spring means biasing said rocker to a position with said pin bearing against one end of said hole, a rocker drive cam drivingly connected to the hour wheel of said movement so as to rotate one turn every twenty-four hours, said rocker and said cam having interengaging contact surfaces so configurated that rotation of said cam in accordance with forward motion of said hour wheel causes said cam to pivot said rocker about said pin While rotation of said cam in the reverse direction causes said cam to linearly displace said rocker with said pin sliding along said slot.
  • said date indicating member is a ring having thirty-one teeth along a periphery thereof, said click normally extending into the space between two said teeth, with said rocker being in said first position, said click being forced to slide over one of said teeth and into a position facing the next following space between respective teeth upon said rocker being pivoted to said cocked position.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Transmission Devices (AREA)
US555478A 1965-06-17 1966-06-06 Calendar correction mechanism for a watch movement Expired - Lifetime US3413800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH847365A CH462724A (fr) 1965-06-17 1965-06-17 Mécanisme de calendrier pour mouvement d'horlogerie à tige de remontoir

Publications (1)

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US3413800A true US3413800A (en) 1968-12-03

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Application Number Title Priority Date Filing Date
US555478A Expired - Lifetime US3413800A (en) 1965-06-17 1966-06-06 Calendar correction mechanism for a watch movement

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US (1) US3413800A (fr)
CH (1) CH462724A (fr)
DE (1) DE1523840B2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721085A (en) * 1970-08-19 1973-03-20 Schild Sa A Calendar driving mechanism for date and week day indicating timepiece
US4291397A (en) * 1979-10-15 1981-09-22 Timex Corporation Manual date advance mechanism for a watch
DE3206946A1 (de) * 1982-02-26 1983-09-15 Timex Corp., 06720 Waterbury, Conn. Schaltgetriebe fuer geraete der zeitmesstechnik
US4837755A (en) * 1987-05-25 1989-06-06 Montres Rolex S.A. Device for controlling or correcting the readout of the day of the week or date for a wrist watch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2891017A1 (fr) * 2012-08-28 2015-07-08 Breitling AG Mécanisme d'affichage pour pièce d'horlogerie

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH11948A (fr) * 1896-03-20 1896-09-30 Constant Piguet Montre à répétition-carillon à quatre marteaux
AT49873B (de) * 1909-08-27 1911-09-11 Bernhard Deutsch Stellvorrichtung für Taschenuhr-Kalenderwerke.
CH161356A (fr) * 1932-02-01 1933-04-30 Bovet Freres & Co S A Montre calendrier.
US2581268A (en) * 1947-03-18 1952-01-01 Benrus Watch Company Inc Calendar timepiece

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH11948A (fr) * 1896-03-20 1896-09-30 Constant Piguet Montre à répétition-carillon à quatre marteaux
AT49873B (de) * 1909-08-27 1911-09-11 Bernhard Deutsch Stellvorrichtung für Taschenuhr-Kalenderwerke.
CH161356A (fr) * 1932-02-01 1933-04-30 Bovet Freres & Co S A Montre calendrier.
US2581268A (en) * 1947-03-18 1952-01-01 Benrus Watch Company Inc Calendar timepiece

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721085A (en) * 1970-08-19 1973-03-20 Schild Sa A Calendar driving mechanism for date and week day indicating timepiece
US4291397A (en) * 1979-10-15 1981-09-22 Timex Corporation Manual date advance mechanism for a watch
DE3206946A1 (de) * 1982-02-26 1983-09-15 Timex Corp., 06720 Waterbury, Conn. Schaltgetriebe fuer geraete der zeitmesstechnik
US4837755A (en) * 1987-05-25 1989-06-06 Montres Rolex S.A. Device for controlling or correcting the readout of the day of the week or date for a wrist watch

Also Published As

Publication number Publication date
DE1523840B2 (de) 1972-04-13
DE1523840A1 (de) 1969-07-17
CH462724A (fr) 1968-05-31

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