US3693345A - Calendar watch movement - Google Patents

Calendar watch movement Download PDF

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Publication number
US3693345A
US3693345A US209523A US3693345DA US3693345A US 3693345 A US3693345 A US 3693345A US 209523 A US209523 A US 209523A US 3693345D A US3693345D A US 3693345DA US 3693345 A US3693345 A US 3693345A
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US
United States
Prior art keywords
stem
pinion
positions
setting
clutch pinion
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
US209523A
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English (en)
Inventor
Jean-Claude Schneider
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.)
Tissot SA
Original Assignee
Fabrique dHorlogerie CHS Tissot et Fils 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 Fabrique dHorlogerie CHS Tissot et Fils SA filed Critical Fabrique dHorlogerie CHS Tissot et Fils SA
Application granted granted Critical
Publication of US3693345A publication Critical patent/US3693345A/en
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
    • G04B19/24—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
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25306—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches

Definitions

  • ABSTRACT A calendar watch movement comprising a date-of-themonth indicator and a day-of-the-week indicator and also a time-setting and rapid correction mechanism.
  • a control stem is radially located with respect to the movement and is capable of assuming several positions along its axis.
  • a clutch pinion is positioned on a square of the stem.
  • There are control components which are capable of moving the clutch pinion along the stem under the influence of the latter's axial dis placement between two of said positions, and transmission means for transmitting rotational motion from the clutch pinion to the indicators.
  • the transmission means comprises a transmission pinion coaxial with the stem which, in one of said positions, ensures at least an unidirectional linkage between clutch pinion and date-of-the-month indicator alone and which, in the other of said positions, ensures linkage between the clutch pinion and at least the day-of-the-week indicator.
  • the stem further offers a third axial position in which the clutch pinion, engages the time settingwheel but does not engage said indicators, and a fourth position in which the clutch pinion also does not actuate said indicators.
  • calendar watches which indicate the date and the day of the week, and which have a winding and time-setting stem provided with a third axial position in which it drives the date indicator when being moved in the other direction.
  • the winder stem carries a clutch pinion which engages a reverse time-setting for the two correcting positions and the time-setting of the stem.
  • Means for transmitting rotational motion from the clutch pinion to the indicators comprise a rocker system upon which are fastened diverse setting wheels. Besides being complicated, this mechanism also suffers from a drawback when being started.
  • calendar watches are known indicating the date and the day of the week, in which the date indicator is driven by the day indicator which has 28 teeth, the driving mechanism being provided with a gear ratio of 28/31.
  • the two indicators may be moved simultaneously by means of the winder stem into the time-setting position.
  • the date indicator may be freed from the day indicator and be rotated alone by means of a transmission pinion fixed to the stem, the latter then being in a correcting position which is different from time-setting position and from the winding position.
  • this known mechanism does not permit rapid correction of the day-of-the-week indicator.
  • the purpose of this invention is to realize a correcting mechanism which is simple, compact, and allows to correct rapidly and separately the date ring and the day disc while avoiding any possibility of error in the handling of the winder stem.
  • the object of this invention is a calendar watch movement comprising a date indicator and a day indicator as well as a time-setting mechanism which may be rapidly corrected, this mechanism comprising a control stem axially located with respect to the movement and capable of assuming several positions along its axis, a sliding pinion which may move on a square of the stem, control components that may move the clutch pinion along the stem in reaction to the stem's axial motion between two of said positions, and means for transmitting rotating motion from the clutch pinion to the indicators, characterized by said transmission means comprising a transmission pinion coaxial with the stem which, in one of said positions, ensures at least unidirectional linkage between clutch pinion and date indicator alone and which, in the other of said positions, ensures linkage between the clutch pinion and at least the day indicator, the stem further offering a third axial position in which the clutch pinion, engaging a time setting wheel, does not actuate said indicators, and a fourth position in which the sliding pinion also does not actuate said indicators.
  • the attached drawing illustrates one kind of execution of the mechanism according to the invention.
  • FIG. 1 is a top view of a calendar watch movement with mechanical drive, where the dial has been removed
  • FIG. 2 is a partial section of a top view and at a greater scale, of the time-setting and correcting mechanism of the movement of FIG. 1, showing the draw stern and the transmission pinion in two different axial positions,
  • FIG. 3 is a partial section of the mechanism of FIG. 2 in a plane passing through the stem axis
  • FIG. 4 is a top view analogous to FIG. 2, showing the stern in a third inward position
  • FIG. 5 is a section similar to FIG. 3, showing the mechanism in the position of FIG. 4, and
  • FIG. 6 is a top view similar to that of FIGS. 2 and 4, showing the stem in its outward position.
  • FIG. 1 shows plate 1 of a mechanically driven watch movement provided with a stem 2 for rewinding and time-setting.
  • a date ring 3 with inward toothing 4 and a day ring 5 with an outward toothing are located on the plate 1. Details concerning the driving mechanism for rings 3 and 5 are beyond the scope of this invention and will not be described herein. Nevertheless, for the sake of comprehensibility of the following explanations, let it be observed that the two rings 3 and 5 are slightly eccentric with respect to each other so that their toothings 4 and 6 engage one another in the 3 hour zone and so that they stay engaged under the influence of a wire spring 9 located in the hollow of a bridge la and actuating the date ring 3.
  • the time-setting and correcting mechanism to be described below may very well be embodied into a watch with a different calendar device.
  • FIG. 2 shows stem 2 radially arranged with respect to the movement and of which the inward end 10 is inserted in a radial opening 11 (FIG. 3) of plate 1.
  • the time-setting and correcting mechanism comprises a setting lever 12 provided with a rotation stud 13, a setting lever spring 14 of which a rigid arm 14a covers setting lever 12 and of which an elastic arm 15 ensures four different setting lever orientations around its stud 13, a rocker l6 pivoting around stud 17 which is axially held in place by the setting lever spring 14, a clutch pinion 18 which may glide on a square 19 of stem 2, and a transmission pinion 20 loosely fastened to stem 2.
  • Rocker I6 is biased by lever spring 21 which tends to make it rotate in the counter clockwise direction, as seen in FIG. 2, and its end is engaged in the groove of clutch pinion 18.
  • lever spring 21 which tends to make it rotate in the counter clockwise direction, as seen in FIG. 2, and its end is engaged in the groove of clutch pinion 18.
  • these components are so shaped as to be able to fill their customary functions.
  • FIG. 3 again shows day indicator 5 comprising an annular plate 50 with the names 8 of the days and an internal annular plate 5b showing toothing 6 at its periphery.
  • Indicator 5 follows around a part 22 of the date bridge 22a.
  • the indicator is slightly eccentric with respect to the movement, as seen in FIG. 1.
  • date indicator 3 one sees in FIG. 3 that part of its toothing 4 which engages toothing 6.
  • Ring 3 is provided with an annular protrusion 23 on its lower face, the protrusion being provided with an internal toothing 24 which is supposed to function together with the transmission pinion 20.
  • Dial 25 is provided with a first window through which one may see indications 8 on the annular plate 50 and with a second window 27, of lesser size, through which one may see the dates 7 on ring 3.
  • the watch shown in the drawing being mechanical, its movement is provided with a crown-wheel 28 at the upper part of the movement underneath bridge 29 and which pivots around stud 30 mounted in this bridge.
  • This crown-wheel 28 may mesh with transmission pinion 20 in such fashion as to ensure rewinding.
  • the reverse time-setting wheel 31 (FIG. 3) pivots on a boss 32 of the plate so as to be rotated by the axial toothing of the clutch pinion 18.
  • the Breguet toothing 37 of clutch pinion 18 engages the corresponding Breguet toothing of transmission 20, the latter being axially retained by flange 38 of stem 2.
  • the external side of this flange has the shape of a frustum of a cone which at the same time represents the internal face of the groove into which is inserted the stud of setting lever 39, whereas the internal face of flange 38, which is also a cone frustum, is inserted in a countersunk shape of pinion 20.
  • this pinion is axially maintained by flange 38 and kept engaged with clutch pinion 18. Its axial position is detennined by protrusion 34 of the setting lever spring and it is so adjusted that the peripheral toothing of pinion engages that of crownwheel 28. In that position, a rotation imparted to stem 2 will drive pinion 20 and hence will ensure rewinding by means of wheel 28.
  • the time setting wheel 31, also the indicators 3 and 5, in that case have entirely disengaged from the time-setting and correcting mechanism.
  • FIG. 6 shows the position obtained when the stem is wholly pulled out towards the exterior.
  • Pin 33 has passed above beak 43 of setting lever spring and reaches the incline beyond the beak.
  • beak 35 penetrates to the bottom of the slot 36 and displaces the rocker horizontally, so that the sliding pinion glides upon the stems square and by its axial toothing engages the reverse time-setting wheel 31.
  • the latter motion corresponds to the usual one undertaken for bringing a mechanism to the time-setting position.
  • the mechanism which has been described comprises no more parts than a customary rewinding and timesetting mechanism. Though it was described here in a utilization mode relating to a mechanically rewound calendar watch, it may equally well be used in an electrical watch. in that case, the crown-wheel would be eliminated and the inward stem position would be disengaged or neutral and without any role.
  • the main advantage of the described mechanism rests in the fact it permits the desired functions by means of the winder stern without incurring the risk of making errors.
  • the inward position of the winder stem is the rewinding position or, in an electrical watch, the neutral position. Starting from this position and pulling the stem outwards, it will normally be brought to the position of the date alone, skipping the correcting position of the date ring and the day indicator. Rotation imparted to the stern in one direction swiftly moves the date ring in the corresponding direction without jeopardy of perturbing the driving mechanism of this ring.
  • the mechanism is brought into the time-setting position and by pushing the stem back inwards, it is first brought to a position simultaneously driving the two calendar indicators, and, finally, to the rewinding or neutral position.
  • a single intermediate position (only) is perceptible in practice when this stem is moved in the axial direction.
  • a calendar watch movement comprising a date-ofthe-month indicator and a day-of-the-week indicator and also a time-setting and rapid correction mechanism, this mechanism comprising a control stem radially located with respect to the movement and capable of assuming several positions along its axis, a clutch pinion on a square of the stem, control components capable of moving the clutch pinion along the stem under the influence of the latters axial displacement between two of said positions, and transmission means for rotational motion from the clutch pinion to the indicators, characterized in that said transmission means comprise a transmission pinion coaxial with the stern which, in one of said positions, ensures at least an unidirectional linkage between clutch pinion and dateof-the-month indicator alone and which, in the other of said positions, ensures linkage between the clutch pinion and at least the day-of-the-week indicator, the stem further offering a third axial position in which the clutch pinion, engaging the time setting-wheel does not engage said indicators, and a fourth position in which the clutch pinion also does not actuate said
  • said control components comprise a setting lever and a lever functioning together at least when a stem displacement occurs between two of said positions, the setting lever further being so made as to displace the transmission pinion when passing from one of its positions to another.
  • Watch movement according to claim 4 in which the indicators are made up of two coplanar hypocyclic rings nonnally engaging one another and whereby the transmission pinion directly meshes with the toothing of the external ring, this ring being the indicator of the date-of-the-month, thus characterized that in one of said intermediate positions, the transmission pinion keeps the date-of-the-month ring free from the day-ofthe-week ring, whereas in the other intermediate position the two rings engage one another.
  • the setting lever spring comprises an elastic arm with a four-notch head so as to determine the four axial setting lever positions and the four of the winder stem, that the beaks with which the setting lever spring is provided between said notches are of unequal heights and of asymmetric shapes so that the mechanism skips a position when the stem is moved in one direction but stops there when moved in the other.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US209523A 1970-12-23 1971-12-20 Calendar watch movement Expired - Lifetime US3693345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1913970A CH543112A (fr) 1970-12-23 1970-12-23 Mouvement de montre-calendrier

Publications (1)

Publication Number Publication Date
US3693345A true US3693345A (en) 1972-09-26

Family

ID=4437599

Family Applications (1)

Application Number Title Priority Date Filing Date
US209523A Expired - Lifetime US3693345A (en) 1970-12-23 1971-12-20 Calendar watch movement

Country Status (6)

Country Link
US (1) US3693345A (enrdf_load_stackoverflow)
JP (1) JPS5137798B1 (enrdf_load_stackoverflow)
CH (2) CH1913970A4 (enrdf_load_stackoverflow)
DE (1) DE2162083C3 (enrdf_load_stackoverflow)
FR (1) FR2118903B1 (enrdf_load_stackoverflow)
GB (1) GB1356050A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4362391A (en) * 1979-11-24 1982-12-07 Gebruder Junghans Gmbh Watch with a calendar display and hand setting device actuated by a setting shaft
US5392260A (en) * 1993-08-31 1995-02-21 Eta Sa Fabriques D'ebauches Timepiece
US6499874B2 (en) * 2000-05-05 2002-12-31 Rolex S.A. Timepiece with a mechanism for winding and for correcting at least two indicator members

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6147299U (ja) * 1984-08-30 1986-03-29 由子 水谷 携帯用灰皿

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470687A (en) * 1966-12-15 1969-10-07 Suwa Seikosha Kk Date and day correcting device of a calendar timepiece
US3537255A (en) * 1967-12-22 1970-11-03 Ch Tissot & Cie Day-date watch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470687A (en) * 1966-12-15 1969-10-07 Suwa Seikosha Kk Date and day correcting device of a calendar timepiece
US3537255A (en) * 1967-12-22 1970-11-03 Ch Tissot & Cie Day-date watch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4362391A (en) * 1979-11-24 1982-12-07 Gebruder Junghans Gmbh Watch with a calendar display and hand setting device actuated by a setting shaft
US5392260A (en) * 1993-08-31 1995-02-21 Eta Sa Fabriques D'ebauches Timepiece
US6499874B2 (en) * 2000-05-05 2002-12-31 Rolex S.A. Timepiece with a mechanism for winding and for correcting at least two indicator members

Also Published As

Publication number Publication date
DE2162083C3 (de) 1974-06-12
CH543112A (fr) 1973-04-13
DE2162083A1 (de) 1972-07-13
GB1356050A (en) 1974-06-12
JPS5137798B1 (enrdf_load_stackoverflow) 1976-10-18
FR2118903A1 (enrdf_load_stackoverflow) 1972-08-04
FR2118903B1 (enrdf_load_stackoverflow) 1976-04-02
CH1913970A4 (enrdf_load_stackoverflow) 1973-04-13
DE2162083B2 (de) 1973-11-22

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