US3762156A - Time-piece - Google Patents

Time-piece Download PDF

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Publication number
US3762156A
US3762156A US00323459A US3762156DA US3762156A US 3762156 A US3762156 A US 3762156A US 00323459 A US00323459 A US 00323459A US 3762156D A US3762156D A US 3762156DA US 3762156 A US3762156 A US 3762156A
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US
United States
Prior art keywords
wheel
seconds
click
rocking lever
ratchet 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
US00323459A
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English (en)
Inventor
C Vuilleumier
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.)
IND HORLOGERE MANAGEMENT SERVI
Soc Pour L Industrie Horlogere Management Services S A ch
Original Assignee
IND HORLOGERE MANAGEMENT SERVI
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 IND HORLOGERE MANAGEMENT SERVI filed Critical IND HORLOGERE MANAGEMENT SERVI
Application granted granted Critical
Publication of US3762156A publication Critical patent/US3762156A/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
    • 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
    • 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

  • ABSTRACT A seconds hand setting mechanism comprising a seconds wheel, a power-driven gear-train for driving the seconds wheel, an axially movable winding stem, a setting lever actuated by the stem, a rocking lever actuated by the setting lever, a click carried by the rocking lever, a ratchet wheel operable by the click and capable of controlling the seconds wheel through a magnetic coupling independently of the gear train to advance or retard a seconds hand carried by the seconds wheel.
  • An object of the invention is to provide a time-piece having means whereby the seconds hand can be stopped to correct an advance or be advanced to correct a lag.
  • FIG. 1 is a plan view of the seconds hand control mechanism in one possible form of embodiment of a time-piece according to the invention.
  • FIG. 2 is a partial view, in vertical cross-section, of this particular form of embodiment of the time-piece.
  • the time-piece as illustrated-in the drawings, comprises a winding stem 1 on which are mounted, in
  • the stem actuates a setting lever 4, pivotally mounted at 5, through the intermediary of a pin 6, carried by the setting lever 4 and engaging in a groove 7 formed in the stem 1.
  • the stem is here so arranged as to be capable of occupying three different axial positions each defined by the engagement of a pin 8, carried by the setting lever 4, in any one of three notches 9a, 9b and 90 made in a spring member 9. Further, the stem ll may be moved-axially inwards to a fourth, unstable, position located beyond the position where the pin 8 engages the notch 9a; the function of this fourth position willbe explained later on.
  • the rocking lever 11 is maintained in its stable position, wherethe click spring 16 does not engage with the toothing of the wheel 17, by a spring 18 which bears on the stud 10 on the side opposite that on which the beak 4a of setting lever 4 comes to bear.
  • the openings 14 and in the rocking lever 11 respectively have an elongated shape anda triangular shape to enable the rocking lever 11,. when moving from its stable position to its unstable position, to perform both a translatory motion and an angular motion.
  • the time-piece moreover comprises a gear-train hav ing a barrel, not shown, a centre or minutes wheel 19, partly shown without its staff, an intermediate wheel 20 with its pinion 21 and its staff 22, a seconds wheel 23 with its pinion 24, and an escapement wheel 25 with its pinion 26 and its staff 26a.
  • the pinion 24 of the seconds wheel 23 is a drilled pinion, freely mounted on aspindle 27. It is held in place axially firstly by a shoulder formed on a hub 28 secured to the lower portion of the spindle 27 and secondly by a thickened portion 27a of the spindle near the upper end of the latter.
  • On the hub 28 is fixed the ratchet'wheel l7 and on the thickened portion 27a is fixed another seconds wheel 29. This other seconds wheel lies over the first seconds wheel and meshes with a third seconds wheel 30, partially shown, whose staff, not shown, is designed to carry :1 seconds hand, not shown.
  • the two seconds wheels 23 and 29 are drivingly associated by a non-positive coupling, here a magnetic cou pling consisting of two permanent magnets 31 and 32, eachhaving sixty pairs of poles and respectively secured to the wheel 23 and to the wheel 29.
  • nonpositive coupling is meant a coupling which, in the case of a driving wheel and of a driven wheel, enables the driven wheel to slip in relation to the driving wheel, as
  • the various components of the mechanism normally occupy the position shown in full lines in FIG. 1, with the winding stem 1 located in the winding position, i.e., when the pin 8 of the setting lever 4 engages in the notch of spring 9, and with the rocking lever 11 in its stable position, i.e., when the pins 12 and 13 are in engagement with the edges of the openings 14 and 15 under the thrust exerted by the spring 18 on the stud 10.
  • the latter which is secured to the rocking lever 11, contacts the beak 4a of the setting lever 4 and the spring click 16 is clear of the toothing of the ratchet wheel 17.
  • the seconds wheel 23 of the gear train drives the seconds wheel 29 through the intermediary of the magnetic coupling formed by the magnets 31 and 32, and hence the seconds wheel 30 whose staff carries the seconds hand.
  • the rocking lever lll simultaneously performs a translatory movement and an angular movement causing the spring click 16 to engage in the toothing of the ratchet wheel 15 and to cause the latter to turn in an anticlockwise direction by one step, thereby causing the seconds hand to move forward by one second in relation to its normal forward movement,
  • the spring click 16 is held in engagement with the toothing of the ratchet wheel 17 thereby immobilising the latter and hence the seconds needle. This is made possible by the non positive coupling between the seconds wheels 29 and 23 which enables the latter to slip in relation to the first and the gear train to continue rotating.
  • the application of pressure on the winding button causes, as indicated above, the spring click 16 to engage with the toothing of the ratchet wheel 17 and the latter to be moved forward by one step, corresponding to an advance of one second of the seconds hand in relation to its normal forward motion.
  • the seconds wheel 30 whose staff is designed to carry the seconds hand is a center-wheel. It is driven by the gear train through the intermediary of the wheel 29 which is magnetically coupled to the wheel 23 of the gear-train.
  • the non positive coupling between this center seconds wheel 30 and the gear train thus consists of the magnetic coupling between the gear-train seconds wheel 23 and the intermediate seconds wheel 29.
  • this intermediate wheel 29 can be dispensed with when the relative position of the gear-train and of the center seconds wheel is such that it enables a magnetic or any other non positive coupling to be fitted between the center seconds wheel and the gear-train secondswheel. In such a case, the ratchet wheel 17 would be secured to the spindle or staff carrying the seconds hand.
  • the ratchet wheel could be made fast with the staff designed to 'carry the seconds hand, i.e., the staff, not shown, of the wheel 30; in such a case, the means for controlling the ratchet wheel from the winding stem are suitably adapted.
  • the click could be actuated by another outer control member, such as a push-button for the purpose of advancing or retarding the seconds hand, as required, and to synchronize it with a reference source.
  • a time-piece comprising a power driven gear train, a seconds wheel driven by said gear train and having a staff arranged to carry a seconds hand, a non positive coupling between the gear train and said seconds wheel, and a control mechanism for controlling the seconds hand via said seconds wheel and including a ratchet wheel drivingly associated with said seconds wheel, a click arranged to cooperate with the ratchet wheel and externally operable click actuating means for causing the click to move the seconds hand clock wise, via the ratchet wheel and the seconds wheel, by a step additional to its normal motion, whereby at least one rapid operation of said means will cause the seconds hand to move forward faster than its normal movement and a single prolonged operation of said means will cause the seconds hand to be held up and retarded.
  • said click-actuating means comprise a control member located externally of the time-piece and arranged for displacement between a stable position and'an unstable position, a monostable rocking lever carrying said click, an elastic element acting on the rocking lever to maintain the rocking lever in its stable position, corresponding to the disengaged position of the click from the ratchet wheel, said rocking lever being operatively connected to said control member whereby, upon the control member being displaced from said stable position thereof to said unstable position thereof, the rocking lever is moved against the action of the elastic element from its stable position to its unstable position, and guide means associated with the rocking lever to cause the rocking lever to carry out during such movement thereof both a translatory motion to enable the click to engage with the ratchet wheel and an angular motion to enable the click to move the ratchet wheel forward one step.
  • said click-actuating means comprise a winding stem axially movable between a stable, winding, position and an inner unstable position, a setting lever actuated by the winding stem, a monostable rocking lever actuatable by said setting lever and carrying said click, an elastic element acting on the rocking lever to maintain the rocking lever'in its stable position, corresponding to the disengaged position of the click from the ratchet wheel and to said stable, winding, position of the stem, and guide means associated with the rocking lever to cause the rocking lever to carry out while being moved from its stable position to its unstable position both a translatory motion to enable the click to engage with the ratchet wheel and an angular motion to enable the click to move the ratchet wheel forward one step.
  • a time-piece according to claim 1, comprising an intermediate seconds wheel drivingly connected with said first-mentioned seconds wheel and a further seconds wheel in said gear-train and wherein said non positive coupling is disposed between said intermediate seconds wheel and said further seconds wheel.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
US00323459A 1972-01-27 1973-01-15 Time-piece Expired - Lifetime US3762156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH123172A CH579298B5 (US07696358-20100413-C00002.png) 1972-01-27 1972-01-27

Publications (1)

Publication Number Publication Date
US3762156A true US3762156A (en) 1973-10-02

Family

ID=4205546

Family Applications (1)

Application Number Title Priority Date Filing Date
US00323459A Expired - Lifetime US3762156A (en) 1972-01-27 1973-01-15 Time-piece

Country Status (3)

Country Link
US (1) US3762156A (US07696358-20100413-C00002.png)
JP (1) JPS4887867A (US07696358-20100413-C00002.png)
CH (2) CH123172A4 (US07696358-20100413-C00002.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972177A (en) * 1974-04-08 1976-08-03 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Control mechanism for time setting and similar functions
EP1376269A2 (en) * 2002-06-18 2004-01-02 Seiko Instruments Inc. Analog electronic timepiece having train wheel setting lever
US20040027923A1 (en) * 2002-06-18 2004-02-12 Tamotsu Ono Analog electronic timepiece having train wheel setting lever
US11340558B2 (en) * 2016-07-12 2022-05-24 Bremont Watch Company Mechanism for selecting and actuating functions of a timepiece movement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US379833A (en) * 1888-03-20 Seconds-setting mechanism for time-pieces
US1244251A (en) * 1916-04-26 1917-10-23 Peter J M Bertelsen Second-hand-setting mechanism for watches.
US1244252A (en) * 1916-11-08 1917-10-23 Peter J M Bertelsen Second-hand-setting mechanism for watches.
US1421668A (en) * 1922-03-31 1922-07-04 Burnstine Abraham Second-hand-setting mechanism for watches

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US379833A (en) * 1888-03-20 Seconds-setting mechanism for time-pieces
US1244251A (en) * 1916-04-26 1917-10-23 Peter J M Bertelsen Second-hand-setting mechanism for watches.
US1244252A (en) * 1916-11-08 1917-10-23 Peter J M Bertelsen Second-hand-setting mechanism for watches.
US1421668A (en) * 1922-03-31 1922-07-04 Burnstine Abraham Second-hand-setting mechanism for watches

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972177A (en) * 1974-04-08 1976-08-03 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Control mechanism for time setting and similar functions
EP1376269A2 (en) * 2002-06-18 2004-01-02 Seiko Instruments Inc. Analog electronic timepiece having train wheel setting lever
US20040027923A1 (en) * 2002-06-18 2004-02-12 Tamotsu Ono Analog electronic timepiece having train wheel setting lever
EP1376269A3 (en) * 2002-06-18 2005-01-19 Seiko Instruments Inc. Analog electronic timepiece having train wheel setting lever
US11340558B2 (en) * 2016-07-12 2022-05-24 Bremont Watch Company Mechanism for selecting and actuating functions of a timepiece movement

Also Published As

Publication number Publication date
JPS4887867A (US07696358-20100413-C00002.png) 1973-11-17
CH579298B5 (US07696358-20100413-C00002.png) 1976-08-31
CH123172A4 (US07696358-20100413-C00002.png) 1976-03-31

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