US3890779A - Chronograph watch - Google Patents

Chronograph watch Download PDF

Info

Publication number
US3890779A
US3890779A US457987A US45798774A US3890779A US 3890779 A US3890779 A US 3890779A US 457987 A US457987 A US 457987A US 45798774 A US45798774 A US 45798774A US 3890779 A US3890779 A US 3890779A
Authority
US
United States
Prior art keywords
cam
lever
chronograph
return
axis
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
US457987A
Other languages
English (en)
Inventor
Edmond Capt
Gerald Gander
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.)
VALJOUX
Original Assignee
VALJOUX
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 VALJOUX filed Critical VALJOUX
Application granted granted Critical
Publication of US3890779A publication Critical patent/US3890779A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
    • G04F7/0814—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms with double hammer, i.e. one hammer acts on two counters
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms
    • G04F7/0852—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms with member having a rotational two-way movement, e.g. navette

Definitions

  • ABSTRACT A chronograph watch including a control cam and a return-to-zero hammer operated by said cam.
  • the axis of rotation of the cam intersects the axis of the setting stem of the watch.
  • the present invention relates to a chronograph watch, the chronograph mechanism of which comprises a cam conrolled by a control lever for controlling running and stopping of the chronograph, and a return to zero control lever, the said cam operating the different functions of the chronograph.
  • the watch of the invention is characterized by the fact that the axis of rotation of the said cam intersects the axis of the setting stem of the watch, with two control levers of the watch being arranged substantially symmetrically with respect to the axis of the said cam, i.e., with respect to the axis of the setting stem; the return to zero hammers of the watch comprises at least a lever independent from the said cam, articulated on the frame of the watch, and which is operated by the said cam.
  • FIG. 1 is a plan view of a portion of a chronograph watch, viewed from the side of the bridges thereof, in which only the elements necessary for understanding of the invention (substantially all of the elements of the chronograph mechanism) have been represented.
  • FIGS. 2 and 3 are partial views of the chronograph mechanism represented in two other working positions.
  • FIGS. 4a and 4b constitute, together, a broken sectional view taken along line IVIV of FIG. 1 in the direction indicated generally on an enlarged scale.
  • FIG. 5 is a plan view of a detail of the chronograph mechanism viewed from the side of the base-plate, and
  • FIG. 6 is a plan view of the detail of FIG. 5, on a smaller scale, in a different operating position.
  • the watch represented comprises a chronograph wheel 1 with which is meshed, when the chronograph is operating, with a pinion 2 rigidly connected to a pinion 3 which is meshed itself with the wheel 4 of the seconds gearing of the movement.
  • the axis 2a of the pinion 2 is mounted for oscillating movement so as to permit pinion 2 to disengage from the chronograph wheel 1; to this effect, the upper pivot-shank of pinion 2 is supported by a clutch lever 5 the action of which is controlled by a return spring 5a, and the displacements of which, which result from starting and stopping of the chronograph, are produced by means which are disclosed hereafter.
  • a shaft 6 of the chronograph carries the wheel 1 and a return to zero heart 7.
  • a portion 8a of a member 8 cooperates with the heart 7.
  • Member 8 is of generally swingle-bar shape and is articulated at 9 on a lever 10 which functions as a return to zero hammer.
  • the shaft 6 also carries a finger 11 which operates, once per revolution, an intermediary wheel 12 pivotally mounted on a journal 13 carried by a bridge 14 of the frame of the movement, i.e., the gearing bridge and the barrel bridge.
  • the intermediary wheel 12 is meshed with a wheel 15 of a counter of minutes, the axis l6 of which carries a heart 17 of return to zero with which cooperates a portion 8b of the member 8.
  • the watch represented comprises moreover a counter of the hours situated on the face of the baseplate 18 of the movement, opposite the dial which has not been represented.
  • the shaft 19 of the hours counter is frictionally driven, by means of a cambered resilientwasher 20, by a wheel 21 meshed with a pinion 22 carried by the barrel 23 (FIG. 4a).
  • the shaft 19 of the counter of the hours carries a heart 24 of return to zero as well as a disc 25 for braking the heart 24.
  • the manner in which heart 24 and disc 25 operate is disclosed hereafter.
  • the control mechanism for the different operations of the chronograph comprises two control levers, one of which, designated by 26, operates to effect starting and stopping of.the chronograph.
  • Lever 26 is articulated at 27 on the frame and carries, articulated at 28 thereon, an oscillating lever 29 called the reverse lever lever 29 is provided with two beaks 29a and 29b,
  • a spring 30, carried by the control lever 26, maintains, at rest, the reverse lever 29 in the position represented in FIG. 1.
  • the other control lever designated by 31, is articulated at 32 on the frame and operates to effect the return to zero operation.
  • the said axis is itself designated by 33 in FIG. 1.
  • the two bearing surfaces 34 and 35 of the two control levers 26 and 31 are symmetric with respect to the stem 33.
  • the control mechanism of the chronograph comprises a cam including of three superposed elements 36, 37 and 38 rigidly connected one with each other by weldment, for example
  • the said cam has thus three levels and therefore can operateelements positioned at different levels.
  • the cam is rotatably mounted on a collar 39a of the hub 39 of the crown wheel 40. Wheel 40 meshes with the winding pinion 41 carried by the stem 33.
  • the three-element cam 36-37-38 is held in place on the collar 39a and a screw 42 (FIGS. 1 and 4a).
  • the axis of the collar 39a, and consequently the axis of rotation of the three-element cam intersects the axis of the winding and setting stem 33.
  • the action of the lower element 38 of the threeelement cam is controlled on the one hand by the reverse lever 29 and on the other hand by the control lever 31; such control permits rotative movements, in one sense or in the other, of the cam; the action of the element 38 is also controlled by a jumper-spring 43 which cooperates with one or the other of three slots 44, 45 and 46 of the element 38, according to the position of the cam.
  • the element 38 operates a lever 47, the head 47a of which is engaged in a slot 48 of element 38 and is articulated at 49 on the frame.
  • the purpose of said lever 47 will be discussed hereafter.
  • the lower element 38 of the cam also operates a brake 50, articulated at 51 on the frame, by means on a slot 52 of the element 38. Slot 52 acts on a nose 50a of the brake.
  • the brake 50 is intended to cooperate, by means of its shoe 50b, with the wheel 1 of the chronograph.
  • the intermediary element 37 of the three-element cam operates the clutch lever 5 by means of a nose 37a acting on an arm 5b of the lever 5.
  • the upper element 36 of the cam operates the hammer .10 of return to zero.
  • Hammer is articulated at 53 on the frame, and is provided with a nose 10a with which cooperates a portion 360 of the element 36.
  • the mechanism of the chronograph operates as follows:
  • the nose 29a of the reverse lever 29 is situated opposite a bearing surface 56 of the element 38 of the cam. Consequently, if a force or pressure is exerted, as indicated by the arrow 57 in FIG. 3, on the bearing surface 34 of the control lever 26, the nose 29a of the reverse lever 29 acts on the bearing surface 56 of the element 38 of the cam for rotating the cam in the clockwise direction and bringing it into the position represented in FIG. 3, in which the jumper 43 is engaged in the slot 46 of the element 38 of the cam. It is to be noted that, in the course of reaching this position, the cam has passed over its interme'diary position (shown in FIG. 1) without stopping therein.
  • the last named position of the cam corresponds to the running of the chronograph: In this position, the oscillating pinion 2 is engaged in the toothing of the wheel of chronograph 1 and the brake 50b is separated from this wheel. The hammer 10 is lifted by the element 36 of the cam.
  • the hammer 10 since the hammer 10 is not rigidly connected to the three element cam, but is controlled independent therefrom, the hammer does not effect a return movement when the mechanism occupies one or the other of its extreme positions, as would be the case if the hammer were rigidly connected to the cam. Consequently, the hammer never occupies a position proximate to the periphery of the movement and thus permits free passage of the rim of the oscillating mass of the automatic winder, diagrammatically represented by the numeral 58 in FIG. 4a.
  • the reverse lever 29 occupies, when the pressure at 57 is released, the position represented in dot-and-dash lines in which its beak 29b is situated opposite a bearing surface 59 of the element 38 of the three-element cam.
  • the frictionally driven hours counter positioned between the baseplate 18 and the dial, is controlled by a lever 60, constituting its return to zero hammer.
  • the peen 60a of the lever 60 cooperates with the heart 24.
  • the lever 60 is articulated at 61 on a circular member 62 rigidly connected to the shaft 49, constituted by a stem passing through the movement along its entire height, of the lever 47 disclosed previously (FIGS. 1 to 3).
  • the lever 47 is by the element 38 of the threeelement cam.
  • the hammer-lever 60 operates a lever 63, articulated at 64 on the base-plate.
  • Lever 63 is provided with a shoe 63a cooperating with the disc 25 carried by the shaft 19 of the counter of hours.
  • the shoe 63a is operable to stop the disc 25.
  • the hammer-lever 60 is controlled by a return to zero lever 65 articulated at 66 on the base-plate and which is provided with a nose 65a cooperating with a nose 60b of the lever 60.
  • the return to zero lever 65 is coupled with the control lever 31 through a portion 31b thereof, bent at right angle to the lever 65.
  • a chronograph watch including a frame, a setting stem, return-to-zero hammers and a chronograph mechanism having a cam rotatable about an axis, a first control lever for controlling running and stopping of the chronograph and a second return-to-zero control lever, said cam being controlled by said control levers, said watch comprising, the axis of rotation of the cam intersecting the axis of the stem, said control levers different planes.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
US457987A 1973-04-06 1974-04-04 Chronograph watch Expired - Lifetime US3890779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH500073A CH579794B5 (xx) 1973-04-06 1973-04-06

Publications (1)

Publication Number Publication Date
US3890779A true US3890779A (en) 1975-06-24

Family

ID=4286219

Family Applications (1)

Application Number Title Priority Date Filing Date
US457987A Expired - Lifetime US3890779A (en) 1973-04-06 1974-04-04 Chronograph watch

Country Status (5)

Country Link
US (1) US3890779A (xx)
JP (1) JPS509463A (xx)
CH (2) CH579794B5 (xx)
DE (1) DE2416526A1 (xx)
FR (1) FR2231044B1 (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588305A (en) * 1981-12-28 1986-05-13 Nouvelle Lemania S.A. Electronic chronograph watch having analog and digital display of measured time periods
US4922474A (en) * 1987-05-12 1990-05-01 Conseilray S.A. Timepiece and method for its realization
WO2008075147A3 (fr) * 2006-12-18 2008-09-12 Jaquet Jean Pierre Chronographe
US20090034373A1 (en) * 2006-02-08 2009-02-05 Montres Journe S.A. Pushbutton device for controlling the start/stop and resetting functions of a chronograph mechanism
WO2009098307A1 (fr) * 2008-02-08 2009-08-13 Manufacture La Joux-Perret Sa Pièce d'horlogerie comportant un mécanisme de chronographe
US20110002198A1 (en) * 2007-12-21 2011-01-06 Omega S.A. Anti-shock device for a timepiece control member
US20110149695A1 (en) * 2009-12-22 2011-06-23 Eta Sa Manufacture Horlogere Suisse Single push-piece chronograph
US20110205852A1 (en) * 2010-02-25 2011-08-25 Montres Breguet Sa Time zone on demand on the main hands of a timepiece
US20110205856A1 (en) * 2010-02-25 2011-08-25 Montres Breguet Sa Programmable and reprogrammable mechanical memory wheel for a timepiece

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH647125GA3 (en) * 1982-03-02 1985-01-15 Dubois & Depraz Sa Chronograph
CH678911B5 (xx) * 1990-04-12 1992-05-29 Ebauchesfabrik Eta Ag
JPH11183652A (ja) 1997-12-22 1999-07-09 Seiko Instruments Inc クロノグラフ時計
CH710205B1 (fr) * 2014-10-03 2018-09-28 Breitling Ag Mécanisme de chronographe à roue à colonnes à deux étages.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045418A (en) * 1960-06-07 1962-07-24 Ed Heuer & Co Sa Time meter
US3457720A (en) * 1966-04-19 1969-07-29 Ebauches Bettlach Sa Stopwatch control mechanism
US3832844A (en) * 1972-06-02 1974-09-03 Citizen Watch Co Ltd Push button type display correction mechanism on a timepiece

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH208214A (fr) * 1938-11-16 1940-01-15 Bulova Watch Co Inc Montre à chronographe.
CH1113467A4 (xx) * 1967-08-08 1971-04-15

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045418A (en) * 1960-06-07 1962-07-24 Ed Heuer & Co Sa Time meter
US3457720A (en) * 1966-04-19 1969-07-29 Ebauches Bettlach Sa Stopwatch control mechanism
US3832844A (en) * 1972-06-02 1974-09-03 Citizen Watch Co Ltd Push button type display correction mechanism on a timepiece

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588305A (en) * 1981-12-28 1986-05-13 Nouvelle Lemania S.A. Electronic chronograph watch having analog and digital display of measured time periods
US4922474A (en) * 1987-05-12 1990-05-01 Conseilray S.A. Timepiece and method for its realization
US20090034373A1 (en) * 2006-02-08 2009-02-05 Montres Journe S.A. Pushbutton device for controlling the start/stop and resetting functions of a chronograph mechanism
US7570545B2 (en) * 2006-02-08 2009-08-04 Montres Journe S.A. Pushbutton device for controlling the start/stop and resetting functions of a chronograph mechanism
WO2008075147A3 (fr) * 2006-12-18 2008-09-12 Jaquet Jean Pierre Chronographe
US7959350B2 (en) 2006-12-18 2011-06-14 Jean-Pierre JAQUET Chronograph
US20100097898A1 (en) * 2006-12-18 2010-04-22 Jean-Pierre JAQUET Chronograph
US20110002198A1 (en) * 2007-12-21 2011-01-06 Omega S.A. Anti-shock device for a timepiece control member
US8434934B2 (en) * 2007-12-21 2013-05-07 Omega S.A. Anti-shock device for a timepiece control member
US20100322038A1 (en) * 2008-02-08 2010-12-23 Richard Habring Timepiece comprising a chronograph mechanism
WO2009098307A1 (fr) * 2008-02-08 2009-08-13 Manufacture La Joux-Perret Sa Pièce d'horlogerie comportant un mécanisme de chronographe
US8545092B2 (en) 2008-02-08 2013-10-01 Manufacture La Joux-Perret Sa Timepiece comprising a chronograph mechanism
US20110149695A1 (en) * 2009-12-22 2011-06-23 Eta Sa Manufacture Horlogere Suisse Single push-piece chronograph
US8337075B2 (en) * 2009-12-22 2012-12-25 Eta Sa Manufacture Horlogère Suisse Single push-piece chronograph
US20110205852A1 (en) * 2010-02-25 2011-08-25 Montres Breguet Sa Time zone on demand on the main hands of a timepiece
US20110205856A1 (en) * 2010-02-25 2011-08-25 Montres Breguet Sa Programmable and reprogrammable mechanical memory wheel for a timepiece
US8382366B2 (en) 2010-02-25 2013-02-26 Montres Breguet Sa Programmable and reprogrammable mechanical memory wheel for a timepiece
US8416645B2 (en) * 2010-02-25 2013-04-09 Montres Breguet Sa Time zone on demand on the main hands of a timepiece

Also Published As

Publication number Publication date
FR2231044B1 (xx) 1977-10-14
CH500073A4 (xx) 1976-02-13
JPS509463A (xx) 1975-01-30
DE2416526A1 (de) 1974-10-24
CH579794B5 (xx) 1976-09-15
FR2231044A1 (xx) 1974-12-20

Similar Documents

Publication Publication Date Title
US3890779A (en) Chronograph watch
US3901020A (en) Chronograph watch
US5220541A (en) Watch movement having a chronograph module adapted on a motor module
US5043955A (en) Analogic display module for watch movement
US5113382A (en) Chronograph watch
US2852908A (en) Mysterious wrist watch
JP4312849B2 (ja) 腕時計
US5086416A (en) Display module for watch movement
US3983691A (en) Winding and setting mechanism for watch movements
US3702530A (en) Timepiece with circumferentially indexed setting positions
US3306025A (en) Self-winding watch movement
US3903686A (en) Chronograph movement
US3675413A (en) Watch movement having totalizers
US3748848A (en) Day-date timepiece
US3543506A (en) Self-winding wristwatch with a chronograph mechanism
US4922474A (en) Timepiece and method for its realization
US3797226A (en) Timepiece fitted with a regulator controllable from outside
US3722207A (en) Universal timepiece
US3879929A (en) Digital-display watch movement
US3568432A (en) Chronograph-watch with independently mounted chronograph mechanism
US3910362A (en) Timer
US5218578A (en) Display device in or for use in a timepiece
US1981297A (en) Self-winding timepiece
US3082594A (en) Driving mechanism for the date indicator in a calendar watch
US3248868A (en) Setting means for a date timepiece