US3248868A - Setting means for a date timepiece - Google Patents

Setting means for a date timepiece Download PDF

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Publication number
US3248868A
US3248868A US385658A US38565864A US3248868A US 3248868 A US3248868 A US 3248868A US 385658 A US385658 A US 385658A US 38565864 A US38565864 A US 38565864A US 3248868 A US3248868 A US 3248868A
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US
United States
Prior art keywords
lever
date
cam
crown
gear wheel
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
US385658A
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English (en)
Inventor
Polo Raymond
Worpe Francis
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.)
Movado Watch Co SA
Manufacture des Montres Universal Perret Freres SA
Original Assignee
Manufacture des Montres Universal Perret Freres SA
Fabriques Movado
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 Manufacture des Montres Universal Perret Freres SA, Fabriques Movado filed Critical Manufacture des Montres Universal Perret Freres SA
Application granted granted Critical
Publication of US3248868A publication Critical patent/US3248868A/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
    • G04B19/25—Devices for setting the date indicators manually
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/026—Mechanical devices for setting the time indicating means by making use of the winding means for several clockworks or pairs of hands and/or supplementary functions

Definitions

  • Date timepieces are sometimes provided with a mechanism which permits indication of the date through a Window in the dial. This mechanism thus drives, once a day, a crown or a disc showing on its surface the figures corresponding to the thirty-one days and which moves underneath the window of the dial.
  • this correction consists in imparting on the hands a number of revolutions corresponding to that which they would have made during the days when the timepiece was stopped. This correction takes some time and causes unnecessary wear of the various time setting devices.
  • the winding shaft has three different positions, one for winding, the sec-0nd for time setting and the third for correcting the date.
  • a setting lever controlled by this pin co-operates with two levers lying one over the other, the one being provided with the time setting wheel and the other with the winding wheel and a cam for correcting the date.
  • the object of the present invention is a date timepiece in which the date correction mechanism includes a gear train the last wheel of which co-operates With a cam which in turn co-operates with the date indicator, is mounted on a lever controlled by the winding shaft. It is characterised in that the width of said lever, at least along part of its length, is such that it can bend elastically in cases that the contact between the cam and the teeth of the date indicator causes a butting.
  • FIGURE 1 is a view in the winding position
  • FIGURE 2 a view in the adjustment position
  • FIGURE 3 a view in the date correction position.
  • the mechanism includes, mounted in a recess of plate 1 a winder pin 2 jointed in sliding device 3.
  • the end 4 of this setting lever touches two levers 5 and 6 lying one over the other and revolving around the axle of crown 7.
  • the end 8 of the setting lever co-operates with the head of the jumper spring 9 provided with two notches 10 and 11, and with a slanted surface 12.
  • Both levers 5 and 6 lean against end 4 of the setting lever by means of a spring provided with two elastic blades 13 and 14.
  • Lever 5 includes an arm 15 at the end of which revolves the winding wheel 16 with 3,248,858 Patented May 3, 1966 which the cam 17 co-operates.
  • Wheel 16 can mesh with barrel ratchet 18.
  • Lever 6 supports the setting wheel 19 which can mesh with the first wheel 20 of the minute train.
  • the pieces are in the position represented in FIGURE 2.
  • the end 8 of the setting lever 15 held back in notch 11 of the jumper spring.
  • Lever 6 leans against the setting lever with area 22 of its periphery, which causes wheel 19 to mesh with wheel 20 of the minute train.
  • Lever 5 leans with a similar area 22 against the setting lever in such a way that wheel 16 and cam 17 are in an inoperative position between ratchet 18 and the date crown 23. A rotation of the shaft then causes a change in the position of the hands.
  • the arm 15 is sufficiently elastic to enable it to bend at the moment of any angle being formed between the tooth and cam 17 while the date is being corrected, thus avoiding any'distortion or breaking of the tooth or the cam.
  • the present invention is not limited to the embodiment described; it also covers mechanism in which one single elastic lever fulfills only two or even only one of the three functions described.
  • the elastic lever provides the Watch mechanism with an additional safety device by preventing any distortion or breaking of one of the pieces in contact with the other,
  • a date timepiece comprising a movable, toothed date crown, a winding shaft adapted to be manually moved axially and rotated about its axis, and means for mov ing the date crown including a pivotable lever, means operatively connecting said lever to the winding shaft whereby the axial position of the winding shaft controls the position of said lever, a gear wheel mounted for rotation on the lever, and a cam mounted for rotation on the lever and cooperating with the gear wheel so that rotation of the gear wheel causes 'the cam to rotate, the

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US385658A 1963-08-08 1964-07-28 Setting means for a date timepiece Expired - Lifetime US3248868A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH983163A CH397540A (fr) 1963-08-08 1963-08-08 Montre à quantième

Publications (1)

Publication Number Publication Date
US3248868A true US3248868A (en) 1966-05-03

Family

ID=4356113

Family Applications (1)

Application Number Title Priority Date Filing Date
US385658A Expired - Lifetime US3248868A (en) 1963-08-08 1964-07-28 Setting means for a date timepiece

Country Status (2)

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US (1) US3248868A (fr)
CH (1) CH397540A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3377795A (en) * 1966-03-11 1968-04-16 Hamilton Watch Co Calendar setting mechanism for an electric watch
US3421311A (en) * 1966-03-30 1969-01-14 Bulova Watch Co Inc Actuating mechanism for timepiece date indicator
US3427798A (en) * 1966-11-10 1969-02-18 Hamilton Watch Co Watch calendar setting mechanism
US3451211A (en) * 1966-11-30 1969-06-24 Seiko Instr & Electronics Calendar watches
US3487631A (en) * 1967-08-14 1970-01-06 Seiko Instr & Electronics Date correcting device for calendar watches
US3664119A (en) * 1968-08-30 1972-05-23 Ebauches Sa Calendar electric timepiece
US3735581A (en) * 1970-08-19 1973-05-29 Schild Sa A Day-date correcting device
US3987618A (en) * 1974-09-07 1976-10-26 Timex Corporation Hand setting device for small switches

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554402A (en) * 1943-04-20 1951-05-22 Ditisheim & Cie Control for alarm watches

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554402A (en) * 1943-04-20 1951-05-22 Ditisheim & Cie Control for alarm watches

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3377795A (en) * 1966-03-11 1968-04-16 Hamilton Watch Co Calendar setting mechanism for an electric watch
US3421311A (en) * 1966-03-30 1969-01-14 Bulova Watch Co Inc Actuating mechanism for timepiece date indicator
US3427798A (en) * 1966-11-10 1969-02-18 Hamilton Watch Co Watch calendar setting mechanism
US3451211A (en) * 1966-11-30 1969-06-24 Seiko Instr & Electronics Calendar watches
US3487631A (en) * 1967-08-14 1970-01-06 Seiko Instr & Electronics Date correcting device for calendar watches
US3664119A (en) * 1968-08-30 1972-05-23 Ebauches Sa Calendar electric timepiece
US3735581A (en) * 1970-08-19 1973-05-29 Schild Sa A Day-date correcting device
US3987618A (en) * 1974-09-07 1976-10-26 Timex Corporation Hand setting device for small switches

Also Published As

Publication number Publication date
CH397540A (fr) 1966-02-15
CH983163A4 (fr) 1964-12-15

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