US3693344A - Timepiece movement - Google Patents

Timepiece movement Download PDF

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Publication number
US3693344A
US3693344A US100598A US10059870A US3693344A US 3693344 A US3693344 A US 3693344A US 100598 A US100598 A US 100598A US 10059870 A US10059870 A US 10059870A US 3693344 A US3693344 A US 3693344A
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US
United States
Prior art keywords
gears
gear
hand
hour hand
hour
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
US100598A
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English (en)
Inventor
Willy Cleusix
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 US3693344A publication Critical patent/US3693344A/en
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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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • 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
    • G04B27/005—Mechanical devices for setting the time indicating means stepwise or on determined values

Definitions

  • a timepiece movement for driving a plurality of hands comprises a power train including a pair of identical, coaxially mounted, independently rotatable gears operatively connected with the hour hand, one of said gears being driven by said power train and the other of said gears being selectively operated manually, with magnetic means normally coupling said gears for simultaneous rotation but permitting adjustment of said manually operable gear relative to the other gear to change the indication of the hour hand without affecting any other hand.
  • Means are provided under the control of the manually operated means for selectively positively coupling said gears to enable rotation simultaneously of said gears by such manual means.
  • the timepiece movement comprises a pair of identical, coaxially mounted, independently rotatable gears operably connected with the hour hand.
  • One of said gears is driven by the power train of the timepiece movement and the other of said gears is selectively operated by manual means for adjusting the hour hand without afi'ecting other hands.
  • the two gears normally are magnetically coupled so that they are driven simultaneously by the power train but the one gear may be manually adjusted without affecting the indication of any other hand such as the minute hand.
  • the magnetic means effects coincidence of said gears to accurately position the hour hand not only with respect to the hour but also the minute and even the second. Occasionally, it becomes necessary to completely reset the timepiece but the foregoing arrangement does not enable such resetting, including not only the adjustment of the hour hand but also the minute hand and a second hand if such is included.
  • the present invention relates to a timepiece movement, comprising conventional gear and an additional gear controlling the hour hand, which gears are identical, coaxially mounted but relatively rotatable, and magnetically coupled with respect to each other with the additional gear actuated by the movement of the timepiece.
  • Manually operable means are connectable for rotating the additional gear by one or more pitches or steps, thus correspondingly rotating the hour hand, without influencing the indication of any other hand and also controls for interlocking said gears in the direction of rotation upon normal setting of the timepiece.
  • FIG. 1 is a fragmentary cross-sectional view of a timepiece movement according to the invention
  • FIG. 2 is a cross-sectional view taken on line 22 of FIG. 1 with the movement in plan and illustrating the control mechanism
  • FIG. 3 is a cross-sectional view similar to that of FIG. 1 but showing a modification.
  • the timepiece movement partially illustrated in the drawings includes a conventional hour wheel 1, which carries the hour hand 31 and is in mesh with a minute wheel pinion 2 of a power train of the movement.
  • the latter is rigidly connected with a timer gear constituted, in this instance, by a lower minute wheel 30 whereas an additional gear constituted, in upper minute wheel 3b is rotatably mounted on the pinion 2 and is in mesh with a cannon pinion 5; the latter is frictionally mounted, by conventional means, on an arbor 6 of a center pinion 7.
  • the hour wheel 1 is rotatably mounted on the cannon pinion 5.
  • the lower minute wheel 30 constitutes an additional gear controlling the hour hand
  • the upper minute wheel 3b coaxial with the lower minute wheel 3a is the conventional minute wheel, normally actuated by operation of the timepiece movement, through the intermediary of the cannon pinion 5.
  • Both minute wheels 30 and 3b have the same diameter and the same number of teeth.
  • the minute hand 32 is carried as usual by the cannon pinion '5.
  • a second hand, coaxial or not with the other hands, may be provided.
  • the additional (lower) minute wheel 3a is magnetically positioned with respect to the other (upper) minute wheel 3b by a like number of correspondingly positioned pole pieces.
  • three small permanent magnets 8 are inserted in the wheel 30, these magnets being uniformly distributed around the axis of the wheel.
  • Three pieces 9 of soft iron, of the same size as the magnets 8, are secured in the wheel 3b, opposite the magnets 8.
  • the magnets may be mounted in the wheel 3b and the pieces of soft iron in the wheel 30, or magnets may be mounted in both wheels.
  • one or both wheels may comprise a magnetizable material and be magnetized so as to obtain three poles or three pole pairs.
  • FIG. 2 shows a control stem 10, which may consist of the conventional winding stem or of a stem distinct from the winding stem.
  • This stem 10 is capable of movement between three different axial positions which are determined by a known device (not shown), of the type including a setting lever and a setting lever spring.
  • the stem 10 is shown in its first or inner position.
  • a stud 12 carried by an arm 13 pivotally mounted on a stepped screw 14, threaded into the pillar plate (not shown).
  • the arm 13 is rigidly connected with a lever 15 in the vicinity of which is arranged a supporting spring 16.
  • the latter oriented by two feet 17, is secured to the pillar plate by means of a screw 18 and has a flexible arm 19 ending in an arcuate portion 20, coaxial with the minute wheels 3a and 3b.
  • the flexible arm 19 has near its junction with the base of the supporting spring 16, an inclined portion or ramp 21 which is engageable by the lever 15 of the arm 13.
  • a supporting plate 22 freely fitted on the sleeve of the minute wheel pinion 2 and bearing against a leaf spring 23 having a plurality of resilient arms in contact with the top face of the minute wheel 3b.
  • the supporting plate 22 carries three pins 24 the lower ends of which is enlarged heads 25.
  • the pins 24 with their heads 25 are engaged into stepped openings 26 of the upper minute wheel 3b, and corresponding openings 27, of a somewhat larger diameter, are provided in the lower minute wheel 3a, opposite the openings 26.
  • a settings pinion 28 adapted to cooperate with an intermediate pinion 29 having a contrate or radial toothing with relatively long teeth.
  • the intermediate pinion 29 pivotally mounted on the frame of the watch, is rigidly connected with a minute setting pinion 30, which is in mesh with the lower minute wheel 3a.
  • the timepiece as shown and described operates as follows:
  • the stem 10 is illustrated in its first or inner position in FIG. 2.
  • This position is normally the winding position for a mechanical watch; in the case of an electric watch, no function occurs if the stem 10 is rotated.
  • the setting pinion 28 is not in mesh with the intermediate pinion 29.
  • the lever 15 of the arm 13 does not bear on the ramp 2] of the supporting spring 16, so that the portion 20 of this spring, while being in contact with the supporting plate 22, does not exert any axial pressure on the latter. Therefore, as shown in FIG. 1, the leaf spring 23 is not deformed and the pins 24, with their heads 25, are engaged only in the openings 26 of upper minute wheel 3b.
  • the cannon pinion 5 drives the upper minute wheel 3b whose rotation is transmitted through the magnets 8 and the pieces 9 of soft iron to the lower minute wheel 30 and, therefore, to the hour hand.
  • the setting pinion 28 engages the intermediate pinion 29.
  • the lever of the arm 13 may engage the ramp 21 of the supporting spring 16, but does not press on it sufficiently to deflect the end portion 20. If the stem 10 is now rotated, in the one direction or the other, the lower minute wheel 3a is rotated and, therefore, the hour hand is also rotated. However, the rotation of the wheel 3 is not transmitted to the wheel 3b, since the magnetic force exerted by the magnets 8 is not sufficient as to overcome the friction of the cannon pinion 5 on its arbor 6. Therefore, the hour hand may be advanced or moved back by one or more steps, without influencing the indication given by the other hand or hands.
  • the upper minute wheel 3b is rotated by the pins 24, so that the cannon pinion 5 is also driven. Therefore, it is thus possible to carry out the normal setting of the watch, i.e., the simultaneous correction of the hour and minute hands.
  • the control stem 10 is moved back into its first or inner position, the parts return into the position illustrated in the drawings; the leaf spring 23, lifts the supporting plate 22 and the setting pinion 28 is disengaged from the intermediate pinion 29.
  • FIG. 3 comprises a standard minute wheel 3, but has two hour wheels la and lb controlling the hour hand, the additional hour wheel 1b being magnetically positioned with respect to the usual hour wheel 1a.
  • the magnets and the pieces of soft iron are fixed to the hour wheels and, due to the gear ratio between the hour wheel and the minute wheel pinion, the number of these magnets are increased to l2.
  • the gear ratio between the hour wheel and the minute wheel pinion is denoted by n
  • the number of the permanent magnets and of the pieces of soft iron carried by the minute wheels 3a and 3b, respectively will be equal to l2/n.
  • the device as illustrated and described might also be applied to a timepiece (watch or clock) with a dial having a scale of 24 hours.
  • a timepiece watch or clock
  • one of the hour wheels might take 24 positions with respect to the other one, or one of the minute wheels might take 24/n positions with respect to the other one.
  • a timepiece movement comprising a timer gear, an hour hand, another band for indicating another segment of time and controlled by the movement, an additional gear controlling the hour hand and magnetically positioned with respect to said timer gear, said timer gear being coaxial with the additional gear and actuated by the movement of the timepiece, manually operable means for selectively rotating the additional gear by at least one step and correspondingly rotating the hour hand without influencing the indication of any other hand, and means for interlocking interlocking said gears in the direction of rotation upon normal setting of the timepiece.
  • a timepiece movement comprising in combination:
  • first gear means controlling the hour hand in said movement
  • said first gear means being magnetically coupled to said second gear means whereby said first gear means is normally driven by said second gear means through said magnetic coupling;
  • a timepiece movement comprising:
  • manually operated means connected with the other of said gears for driving said gear to rotate said hour hand to change the hour indication thereof without affecting the other said hand;
  • said means for positively coupling said gears comprising a supporting plate carrying pins engaging in the openings of one of said gears, means movably supporting said supporting plate, and means for moving said supporting plate to move said pins to enter the openings in the other of said gears.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US100598A 1970-01-17 1970-12-22 Timepiece movement Expired - Lifetime US3693344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH61470A CH528765A (fr) 1970-01-17 1970-01-17 Pièce d'horlogerie

Publications (1)

Publication Number Publication Date
US3693344A true US3693344A (en) 1972-09-26

Family

ID=4191088

Family Applications (1)

Application Number Title Priority Date Filing Date
US100598A Expired - Lifetime US3693344A (en) 1970-01-17 1970-12-22 Timepiece movement

Country Status (5)

Country Link
US (1) US3693344A (fr)
JP (1) JPS5146422B1 (fr)
CH (2) CH61470A4 (fr)
DE (1) DE2063216B2 (fr)
FR (1) FR2077190B1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969888A (en) * 1972-12-11 1976-07-20 Cyril Veuilleumier Driving mechanism for day-date calendar device
US3972178A (en) * 1972-10-13 1976-08-03 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Electrically powered timepiece
US4038814A (en) * 1975-02-18 1977-08-02 Citizen Watch Co., Ltd. Wristwatch structure
US4143510A (en) * 1976-04-16 1979-03-13 Kabushiki Kaisha Daini Seikosha Analogue electronic timepiece with setting means
FR2493001A1 (fr) * 1980-10-23 1982-04-30 Ebauchesfabrik Eta Ag Dispositif de commande coulissant pour montre
US20080111449A1 (en) * 2006-11-13 2008-05-15 Eta Sa Manufacture Horlogere Suisse Arrangement for the mechanical interfacing of a mems micromotor with a clock wheel and timepiece comprising this arrangement
US20090016174A1 (en) * 2005-03-06 2009-01-15 Lange Uhren Gmbh Watch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2602674B1 (fr) 2011-12-07 2014-06-25 ETA SA Manufacture Horlogère Suisse Dispositif d'affichage d'horlogerie à combinaison d'afficheurs

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233400A (en) * 1963-10-21 1966-02-08 Arthur W Haydon Resettable clock or the like
US3537326A (en) * 1968-07-05 1970-11-03 Centre Electron Horloger Device for transforming oscillating movement into rotational movement in particular for timepieces

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233400A (en) * 1963-10-21 1966-02-08 Arthur W Haydon Resettable clock or the like
US3537326A (en) * 1968-07-05 1970-11-03 Centre Electron Horloger Device for transforming oscillating movement into rotational movement in particular for timepieces

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972178A (en) * 1972-10-13 1976-08-03 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Electrically powered timepiece
US3969888A (en) * 1972-12-11 1976-07-20 Cyril Veuilleumier Driving mechanism for day-date calendar device
US4038814A (en) * 1975-02-18 1977-08-02 Citizen Watch Co., Ltd. Wristwatch structure
US4143510A (en) * 1976-04-16 1979-03-13 Kabushiki Kaisha Daini Seikosha Analogue electronic timepiece with setting means
FR2493001A1 (fr) * 1980-10-23 1982-04-30 Ebauchesfabrik Eta Ag Dispositif de commande coulissant pour montre
US20090016174A1 (en) * 2005-03-06 2009-01-15 Lange Uhren Gmbh Watch
US8036066B2 (en) * 2005-03-06 2011-10-11 Lange Uhren Gmbh Watch
US20080111449A1 (en) * 2006-11-13 2008-05-15 Eta Sa Manufacture Horlogere Suisse Arrangement for the mechanical interfacing of a mems micromotor with a clock wheel and timepiece comprising this arrangement
US7738323B2 (en) * 2006-11-13 2010-06-15 Eta Sa Manufacture Horlogère Suisse Arrangement for the mechanical interfacing of a MEMS micromotor with a clock wheel and timepiece comprising this arrangement

Also Published As

Publication number Publication date
FR2077190A1 (fr) 1971-10-22
FR2077190B1 (fr) 1974-03-01
CH528765A (fr) 1972-06-15
DE2063216B2 (de) 1972-04-13
JPS5146422B1 (fr) 1976-12-09
CH61470A4 (fr) 1972-06-15
DE2063216A1 (de) 1971-08-05

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