EP3495898B1 - Mechanism for stop-watch movement - Google Patents

Mechanism for stop-watch movement Download PDF

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Publication number
EP3495898B1
EP3495898B1 EP18202209.5A EP18202209A EP3495898B1 EP 3495898 B1 EP3495898 B1 EP 3495898B1 EP 18202209 A EP18202209 A EP 18202209A EP 3495898 B1 EP3495898 B1 EP 3495898B1
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EP
European Patent Office
Prior art keywords
wheel
chronograph
oscillating
oscillating pinion
pinion
Prior art date
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Active
Application number
EP18202209.5A
Other languages
German (de)
French (fr)
Other versions
EP3495898A1 (en
EP3495898B2 (en
Inventor
Sylvain Perret
Salvador Arbona
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.)
Guenat SA Montres Valgine
Original Assignee
Guenat SA Montres Valgine
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Application filed by Guenat SA Montres Valgine filed Critical Guenat SA Montres Valgine
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Publication of EP3495898B2 publication Critical patent/EP3495898B2/en
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Classifications

    • 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
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0838—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement involving a tilting movement
    • 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
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0828—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement acting in the plane of the movement
    • 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
    • G04F7/0809—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms with single hammers, i.e. one hammer acts on each counter

Definitions

  • the present invention relates to a mechanism for a chronograph watch movement.
  • the present invention also relates to a chronograph watch movement comprising such a mechanism, as well as a chronograph watch, in particular a chronograph wristwatch, comprising such a movement.
  • a chronograph watch is a time device that allows you to measure duration.
  • the chronometer is a precision time device.
  • a chronograph may or may not be qualified as a chronometer.
  • a chronograph watch is called a watch comprising at least one indicator such as a hand which can be started, then stopped, by means of a push-piece or other control device, in order to measure a duration. . Then it can be brought back to its starting point.
  • Many chronographs also include indicators for displaying the current time in addition to displaying the measured time.
  • the indicator or second hand (also called “chronograph seconds indicator” or “chronograph seconds hand”), which is at rest on the zero division of the dial, starts up (“START” phase). Pressing the same push-button or another push-button a second time has the effect of stopping the second hand at the exact point where it was when pressed (“STOP” phase).
  • STOP time where it was when pressed
  • the second hand quickly returns to its starting point, that is to say on the zero division of the dial (“RESET” phase). In this way, it is possible to measure a duration in seconds.
  • the three phases or functions of a chronograph watch are therefore start or start, stop or stop and reset or reset.
  • the “STOP” and “RESET” phases are generally controlled by a button other than the one dedicated to the “START” phase.
  • a possible known chronograph mechanism is that with the column wheel which uses two push-pieces or control devices, one for the “START” and “STOP” functions, the other for resetting (“RESET”).
  • the usual chronograph watches take the energy necessary for the operation of the part of the movement allowing the measurement of a duration, on the kinematic chain making it possible to count and display the current time, that is to say on the chain kinematics linking a source of energy, for example a barrel, to the regulating member and to the wheels of the watch, which are linked to the indicators of the watch in order to display the current hour, minutes and / or seconds.
  • a source of energy for example a barrel
  • a wheel indicates a mobile which can be rotated and which allows a clutch with a toothing of another mobile.
  • a wheel is a toothed wheel.
  • Such a wheel is generally linked to an indicator, for example a needle.
  • counter indicates a means providing information relating to a counted duration. More precisely, a dial and an indicator form a counter.
  • control devices can be cam or column wheel. As they are known per se in the art, they will not be described here.
  • Known clutch devices make it possible to engage the current time seconds wheel (also known as the “second movement wheel” or “seconds wheel”) to the chronograph seconds wheel.
  • the chronograph seconds wheel drives a seconds indicator which makes a full revolution of the dial when the measured time reaches a whole number of seconds, in most cases sixty seconds.
  • the chronograph seconds wheel drives, for example by means of a reduction gear, other wheels which make it possible to count a measured time, generally a wheel of the seconds. chronograph minutes, or even a chronograph hour wheel.
  • the energy coming from the "basic movement”, that is to say from the movement which makes it possible to display the current time (seconds, minutes and / or hours) is then redistributed to the various wheels which allow you to count a measured time directly by the chronograph seconds wheel.
  • Vertical clutch devices allow a so-called “vertical” clutch between the two kinematic chains, in particular between a wheel of a kinematic chain (that which makes it possible to determine the current time) and a wheel of the other kinematic chain (that which allows a measurement of a duration).
  • Lateral or horizontal clutch devices make it possible to couple two wheels by bringing them into contact via their periphery (toothing).
  • the disadvantage of this type of clutch is that when driving the counting wheel of a measured time it is possible to have a jump starting caused by a bad alignment of the teeth of the two wheels. The gap is even smaller the more teeth there are.
  • teeth with a lot of teeth are difficult to manufacture and more subject to wear. In this type of device, there is no oscillation or tilting movement of the elements of these devices.
  • the document EP2570869 describes a lateral or horizontal clutch device.
  • oscillating pinion clutch devices which allow energy transmission from the seconds wheel to the chronograph seconds wheel using an oscillating pinion.
  • This oscillating pinion has a first toothing which is in permanent contact with the seconds wheel.
  • This oscillating pinion under the action of an actuating device such as a rocker, oscillates or tilts, so that its second toothing comes into contact with the chronograph seconds wheel, thus also rotating it. .
  • the document CH700808 describes a pinion clutch device oscillating between the second movement wheel and the second chronograph wheel.
  • the energy of the chronograph seconds wheel is then redistributed to the various wheels which allow the measurement of a duration, in particular the chronograph minute wheel and the chronograph hour wheel.
  • the chronograph seconds wheel is one of the components with the least energy. Therefore, any disturbance on this wheel, for example disturbances linked to the fact that this wheel drives the chronograph minutes and chronograph hours wheels, will have consequences on the operation of the various other mechanisms of the base movement which make it possible to measure and display the time. current time, to which the chronograph seconds wheel is linked via the second movement wheel. For example, any disturbance on the chronograph seconds wheel will have consequences on the precision of the basic movement, the power reserve of the basic movement, etc.
  • the document EP2073079 relates to a column wheel type chronograph mechanism, in which the column wheel cooperates with a clutch lever, carrying a clutch return and is pivotally mounted on the plate between a first rest position and a second position of 'driving a chronograph train, from a finishing train, via the chronograph wheel meshing or not with the clutch return.
  • This document describes that an additional clutch lever can be provided to ensure the driving of the hours mobile, for example from the average wheel.
  • the minute counter is driven from the second counter in a conventional manner.
  • the document CH527462 relates to a chronograph watch in which the chronograph mechanism, in almost its entirety, is carried by an independent frame which is removably fixed to the frame of the movement.
  • This mechanism comprises a pinion clutch oscillating between the chronograph wheel and the seconds wheel of the movement.
  • An aim of the present invention is therefore that of providing a mechanism for a chronograph watch movement which is less sensitive to disturbances compared to known mechanisms.
  • Another aim of the present invention is therefore that of providing a mechanism for a chronograph watch movement in which the development of the minute and / or hour wheels is less complicated.
  • Another aim of the present invention is therefore that of providing a mechanism for a chronograph watch movement which creates less space than the known mechanisms.
  • Another aim of the present invention is therefore that of providing a mechanism for a chronograph watch movement free from the limitations of known mechanisms.
  • the counter wheel for a determined time is thus driven solely by the energy source via the oscillating pinion, so that the rotation of the chronograph seconds wheel is not disturbed by the rotation of the chronograph seconds wheel. the counter wheel of a determined time.
  • the mechanism according to the invention makes it possible to dissociate the function of the chronograph seconds wheel from that of a determined time counter, for example a minutes counter or of the timed hours, in order not to disrupt the rate of the basic movement when the chronograph is engaged.
  • the mechanism according to the invention thus makes it possible to separate the movement (or rotation) of the chronograph seconds wheel from that (or that) of the counter wheel of a determined time.
  • the chronograph seconds wheel of the mechanism according to the invention no longer drives the counter wheel for a determined time.
  • the transmission chain or kinematic chain of the mechanism according to the invention connects the chronograph seconds wheel and the counter wheel of a determined time, only via the energy source and by no other path.
  • the oscillating pinion enables an oscillating pinion clutch between the power source and the determined time counter wheel, the energy to drive the determined time counter wheel is taken from a source of. energy that has more energy than the chronograph seconds wheel. Therefore, disturbances on this energy source will not affect the counter wheel for a determined time, or will have an impact much less than that of the state of the art which relies on the energy of the chronograph seconds wheel. Finally, disturbances on this energy source will not no incidence on the regulating organ of the basic movement, or else will have an incidence much lower than that of the state of the art.
  • the counter wheel for a determined time is no longer driven by the chronograph seconds wheel. It takes its energy from an energy source providing it with much greater energy than that supplied by the chronograph seconds wheel, and which is therefore less sensitive to disturbances.
  • the expression “energy source” indicates a barrel or else an intermediate mobile unit linked, in particular directly linked, to the barrel, that is to say in contact with a barrel.
  • a mobile which is linked to the barrel via a chain of other mobiles, for example via a cog train is not a source of energy in this context.
  • the second movement wheel is not a source of energy as defined in the context of this invention.
  • the invention therefore aims to separate the movement of the counter wheel for a determined time from that of the chronograph seconds wheel by means of an oscillating pinion which is not disposed between this counter wheel. time and this chronograph seconds wheel.
  • This separation and the presence of the oscillating pinion simplify the development and operation of the counter wheel of a determined time, because this counter wheel of a determined time is no longer driven by the wheel of chronograph seconds.
  • the oscillating pinion allows better access to the counter wheel of a determined time.
  • This separation as well as the presence of the oscillating pinion also allow a space-saving arrangement while at the same time allowing to significantly reduce the starting jump to the counter wheel of a determined time.
  • this counter wheel with a predetermined time is a chronograph minute wheel.
  • the counter wheel of a predetermined time is an N minute counter wheel, N being a positive integer.
  • N 60
  • N 30
  • this predetermined time counter wheel is a chronograph hour wheel.
  • the counter wheel of a predetermined time is an M hour counter wheel, M being a positive integer.
  • the mechanism according to the invention offers a large number of possibilities for N minutes and / or M hours counters, since N and M can be chosen according to the gear ratios between the energy source and the counter wheel. a determined time, the number of teeth of the energy source and / or the counter wheel of a determined time, and / or according to their centers.
  • the counter wheel of a predetermined time is replaced by a countdown wheel.
  • the mechanism according to the invention in this variant thus comprises two oscillating pinions.
  • the number of teeth of the second toothing of the first oscillating pinion may be equal to the number of teeth of the second toothing of the second oscillating pinion, which further simplifies the adjustment of the mechanism according to the invention.
  • the number of teeth of the second toothing of the first oscillating pinion may be less or greater than the number of teeth of the second toothing of the second oscillating pinion.
  • the counter wheel for a determined time is a first wheel and the mechanism according to the invention comprises a second counter wheel for a determined time.
  • the first counter wheel of a determined time is a chronograph minute wheel
  • the second wheel may be a chronograph hour wheel.
  • the mechanism comprises a third oscillating pinion producing a pinion clutch oscillating between the energy source (or another energy source) and the second counter wheel for a determined time.
  • the energy source is an intermediate moving body directly in contact with a barrel, which can mesh on the one hand with the second toothing of the first oscillating pinion and on the other hand with the second toothing of the third oscillating pinion, thus allowing for example to rotate a chronograph minute wheel (cooperating with the first oscillating pinion) and a chronograph hour wheel (cooperating with the third oscillating pinion).
  • the energy source cooperating with the first oscillating pinion is different from that cooperating with the third oscillating pinion.
  • the energy source cooperating with the first oscillating pinion is a first intermediate mobile in contact with a first toothing of a double-toothed barrel
  • the energy source cooperating with the third oscillating pinion is a second intermediate mobile in contact with a second toothing of the double-toothed barrel.
  • this third oscillating pinion is actuated by the first actuator (for example a rocker which can actuate either the first oscillating pinion only, or both the first and the second oscillating pinion).
  • the first actuator for example a rocker which can actuate either the first oscillating pinion only, or both the first and the second oscillating pinion.
  • this third oscillating pinion is actuated by the second actuating device which also actuates the second oscillating pinion.
  • this third oscillating pinion is actuated by a third actuating device which does not actuate any other oscillating pinion.
  • the third oscillating pinion comprises a first toothing arranged to mesh with a source of energy of the movement and a second toothing arranged to move under the action of an actuating device (the first, the second or a third actuating device), so as to mesh with the second counter wheel for a determined time, thereby producing a pinion clutch oscillating between the energy source and the second counter wheel for a determined time.
  • a fourth counter wheel of a determined time associated with a fourth oscillating pinion this fourth oscillating pinion being actuated by an actuating device which already actuates another pinion. oscillating, or by another actuating device, and providing a pinion clutch oscillating between this fourth counter wheel and a source of energy of the movement (for example a barrel, an intermediate mobile directly linked to the barrel and already cooperating with a another oscillating pinion or another intermediate mobile directly linked to the barrel which only cooperates with the fourth oscillating pinion).
  • a source of energy of the movement for example a barrel, an intermediate mobile directly linked to the barrel and already cooperating with a another oscillating pinion or another intermediate mobile directly linked to the barrel which only cooperates with the fourth oscillating pinion.
  • each additional wheel being associated with a new oscillating pinion, which new oscillating pinion is actuated by an additional actuating device or by an actuating device which already actuates another oscillating pinion, and carrying out a pinion clutch oscillating between this wheel and an additional source of energy (for example another intermediate moving body directly linked to the barrel which cooperates only with the additional oscillating pinion) or else by a source of energy of the movement already cooperating with another oscillating pinion.
  • an additional source of energy for example another intermediate moving body directly linked to the barrel which cooperates only with the additional oscillating pinion
  • the mechanism according to the invention comprises the first actuating device.
  • This first actuator can be arranged to control both the first and the second oscillating pinion (and also any other additional oscillating pinion), which makes it possible to reduce the number of components of the mechanism and therefore its cost and bulk.
  • the mechanism according to the invention comprises a second actuating device which makes it possible to control the second oscillating pinion, the first oscillating pinion being actuated by the first actuating device.
  • the first actuating device and / or the second actuating device (and / or any other additional actuating device cooperating with any other additional pinion) is a rocker.
  • the mechanism according to the invention comprises a control device actuating the first and / or the second actuating device and / or any other additional actuating device, this control device being for example a control device with cam and / or column wheel.
  • the oscillating pinion comprises more than two teeth on its axis. In this variant, it is thus possible to produce a double clutch with a single oscillating pinion.
  • the invention also relates to a chronograph watch movement comprising the mechanism according to the invention.
  • the mechanism according to the invention is a module which can be integrated into an already existing watch movement.
  • this module can be sold separately from the watch movement in which it can be integrated.
  • the invention also relates to a chronograph watch comprising the chronograph watch movement according to the invention.
  • the oscillating pinion 10 visible in perspective on the figure 2 , comprises an axis of the oscillating pinion 100 comprising two ends or pivots 1100 and 1200, which allow the cooperation of the oscillating pinion 10 with a plate, respectively a latch 210.
  • the oscillating pinion 10 pivots between a plate and a latch 210 (see par. example the figure 4 ).
  • these two ends 1100 and 1200 have a section smaller than that of the axis 100.
  • the oscillating pinion 10 comprises a first toothing 110.
  • An energy source 1 meshes with the lower toothing 110 of the oscillating pinion 10.
  • the contact between the energy source 1 and the lower toothing 110 is made continuously and permanently. The oscillating pinion 10 is thus rotated around the main axis of its axis 100.
  • the oscillating pinion 10 can comprise more than two teeth on its axis. In this variant, it is thus possible to produce a double clutch with a single oscillating pinion.
  • the expression “energy source” indicates a barrel or else a linked intermediate mobile, for example directly linked to the barrel.
  • the energy source is an intermediate mobile 1 directly linked to the barrel 1 '.
  • the energy source which meshes with the lower teeth 110 of the oscillating pinion 10 is the barrel 1 'itself.
  • a “source of energy” in this context therefore indicates a moving body which can supply another moving body with much greater energy than that which the chronograph seconds wheel could supply it.
  • the oscillating pinion 10 comprises a second toothing or wheel 120.
  • This toothing 120 of the figure 1 is in contact with the chronograph minute wheel 2.
  • the number of teeth of the first toothing 110 is different from that of the second toothing 120.
  • the oscillating pinion 10 also cooperates in correspondence of the second end 120 of the axis 100 with an actuating device of the oscillating pinion 210, for example a rocker, which is controlled by a control device, cam or column wheel. , not shown in this figure.
  • an actuating device of the oscillating pinion 210 for example a rocker, which is controlled by a control device, cam or column wheel.
  • a control device 8 is for example visible on the figures 4 to 6 .
  • the second end 1200 of the axis 100 of the oscillating pinion 10 moves, in particular oscillates or tilts so that the upper toothing 120 comes into contact with the chronograph minute wheel 2.
  • the first end 1100 substantially maintains its position, thus ensuring that contact is maintained between the source of energy 1 and the lower teeth 110 of the oscillating pinion 10, and therefore the rotation of the oscillating pinion 10.
  • the oscillating pinion 10 pivots around the 'end 1100, so that the upper toothing 120 comes into contact with or meshes with the chronograph minute wheel 2.
  • the illustrated oscillating pinion clutch device has the advantage of significantly reducing the starting jump (backward or forward) of the chronograph minute wheel 2 when the chronograph is engaged.
  • the oscillating pinion 10 Since the oscillating pinion 10 enables an oscillating pinion clutch between the power source 1 and the chronograph minute wheel 2, the energy to drive the chronograph minute wheel 2 is taken from a power source 1 which has more than 'energy in relation to the chronograph seconds wheel 3, which is visible for example on the figure 4 . Consequently, the disturbances on this energy source 1 will have no effect on the chronograph minute wheel 2, or else will have an effect much less than that of known mechanisms.
  • the chronograph minute wheel 2 is thus driven solely by the energy source via the oscillating pinion 10, so that the rotation of the chronograph seconds wheel 3 is not disturbed by the rotation of the chronograph minute wheel 2.
  • the mechanism according to the invention makes it possible to dissociate the function (and therefore the movement) of the chronograph seconds wheel 3 from the function (therefore of the movement) of the chronograph 2 minutes, in order not to disturb the operation of the basic movement when the chronograph is engaged.
  • This separation also allows a simplification of the development and the operation of the chronograph minute wheel 2, because it is no longer driven by the chronograph seconds wheel 3.
  • the simplification is also obtained by the presence of the oscillating pinion 10, which allows an improvement in the meshing with respect to a system traditional.
  • This separation and the presence of the oscillating pinion 10 also allow a space-saving arrangement while making it possible to significantly reduce the starting jump at the chronograph minute wheel 2.
  • the counter wheel of a predetermined time is a chronograph minute wheel 2.
  • this counter wheel with a predetermined time is a chronograph hour wheel.
  • the counter wheel of a predetermined time is an M hour counter wheel, M being a positive integer. It is used to train a chronograph hour indicator (for example the HC indicator visible on the figure 3 ) which makes a complete revolution of a C2 dial when the measured time reaches M hours.
  • the mechanism according to the invention offers a large number of possibilities for N minutes and / or M hours counters, because N and M can be chosen according to the gear ratios between the energy source 1 or 1 'and the wheel. counter of a determined time, of the number of teeth of the energy source and / or of the counter wheel of a determined time, and / or as a function of their centers.
  • the same actuator 210 which actuates the first oscillating pinion can actuate the second oscillating pinion 20 or vice versa.
  • the mechanism according to the invention comprises a second counter wheel with a determined time.
  • the first counter wheel of a determined time is a chronograph minute wheel
  • the second wheel may be a chronograph hour wheel.
  • the mechanism comprises a third oscillating pinion producing a pinion clutch oscillating between the energy source (or another energy source) and the second counter wheel for a determined time.
  • the energy source is an intermediate mobile 1 directly in contact with a barrel 1 ', which can mesh on the one hand with the second toothing of the first oscillating pinion 10 and on the other hand with the second toothing of the third pinion. oscillating, thus allowing to rotate for example a chronograph minute wheel 2 (cooperating with the first oscillating pinion 10) and a chronograph hour wheel (cooperating with the third oscillating pinion).
  • the energy source cooperating with the first oscillating pinion is different from that cooperating with the third oscillating pinion.
  • the energy source cooperating with the first oscillating pinion is a first intermediate mobile 1 in contact with a first toothing of a double toothed barrel
  • the energy source cooperating with the third oscillating pinion is a second intermediate mobile in contact with a second toothing of the double toothed barrel.
  • this third oscillating pinion is actuated by the first actuator (for example a rocker which can actuate either the first oscillating pinion only, or both the first and the second oscillating pinion).
  • the first actuator for example a rocker which can actuate either the first oscillating pinion only, or both the first and the second oscillating pinion.
  • this third oscillating pinion is actuated by the second actuating device which also actuates the second oscillating pinion.
  • this third oscillating pinion is actuated by a third actuator which does not actuate any other oscillating pinion.
  • the third oscillating pinion comprises a first toothing arranged to mesh with a source of energy of the movement and a second toothing arranged to move under the action of an actuating device (the first, the second or a third actuating device), so as to mesh with this other counter wheel for a determined time, thus producing a pinion clutch oscillating between the energy source and the second counter wheel for a determined time.
  • each new wheel being associated with a new oscillating pinion, actuated by a new actuating device or by an actuating device which already actuates another oscillating pinion, and providing an oscillating pinion clutch between this wheel and a new source of energy for the movement (for example another intermediate moving body directly linked to the barrel which only cooperates with the new oscillating pinion) or else by a source of energy for the movement already cooperating with another oscillating pinion.
  • a new source of energy for the movement for example another intermediate moving body directly linked to the barrel which only cooperates with the new oscillating pinion
  • the chronograph hour wheel is not driven by means of an oscillating pinion by an energy source, but it is in direct engagement with the energy source (for example the barrel) and kept braked permanently if it does not have to move to allow the display of a measured time.
  • the number of teeth of the second toothing of the first oscillating pinion 10 is equal to the number of teeth of the second toothing of the second oscillating pinion 20 and / or of the third oscillating pinion (and / or of any other oscillating pinion) , which further simplifies the adjustment of the mechanism according to the invention.
  • the chronograph seconds wheel 3 and the chronograph minutes wheel 2 are associated with the heart 33 respectively 22.
  • Each heart is associated with an indicator, for example a hand, which it makes it possible to control and orient in order to display the corresponding indications.
  • the axis of a needle can be mounted directly on the corresponding axis of the heart, one linked to this axis of the heart by means of a chain of gears as short as possible, for example a wheel and a pinion .
  • the heart 22 is associated with the chronograph minutes indicator MC, visible on the figure 3 , where it is placed at three o'clock.
  • the heart 33 is associated with the chronograph seconds indicator SC, visible on the figure 3 , where it is placed in the center.
  • Another heart, not shown, is associated with the HC chronograph hour indicator, visible on the figure 3 , where it is placed at nine o'clock.
  • the position of the indicators on the 2000 watch of the figure 3 is non-limiting and any other position can be considered.
  • the chronograph time indicators (SC, MC and / or HC) move continuously, that is to say without jumps or “dragging”.
  • the mechanism could be arranged so that they move “step by step”.
  • the figure 8 illustrates a sectional view of an embodiment of a movement according to the invention, in which a “START” push-button (or other control device) (not visible) of the chronograph watch has been engaged: indeed, not only is the second oscillating pinion 20 in contact with the chronograph seconds wheel 3 (reference T 2 on the figure 8 ), but also the first oscillating pinion 10 is in contact with the chronograph minute wheel 2 (reference T 1 on the figure 8 ).
  • the oscillating pinions 10, 20 are substantially perpendicular to the faces of the wheels illustrated when they come into contact with the chronograph seconds wheel 3 respectively with the chronograph minutes wheel 2.
  • the figure 9 illustrates the sectional view of the embodiment of the figure 8 , when the button (or another control device) "STOP" (not visible) is selected.
  • the second oscillating pinion 20 is no longer in contact with the chronograph seconds wheel 3 (reference E 2 on the figure 9 , indicating the space between the second oscillating pinion 20 and the chronograph seconds wheel 3)
  • the first oscillating pinion 10 is no longer in contact with the chronograph minute wheel 2 (reference E 1 on the figure 9 indicating the space between the first oscillating pinion 10 and the chronograph minute wheel 2).
  • the oscillating gears 10, 20 are inclined to the faces of the illustrated wheels.
  • the counter wheel of a determined time, the chronograph seconds wheel, the actuating device and the oscillating pinion of the mechanism according to the invention form a module or kit which can be integrated into an already existing watch movement.
  • this module can be sold separately from the watch movement in which it can be integrated.
  • this module is integrated into the bridge side (that is to say the side opposite the dial) of an existing watch movement.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Description

Domaine techniqueTechnical area

La présente invention concerne un mécanisme pour mouvement de montre chronographe. La présente invention concerne également un mouvement de montre chronographe comprenant un tel mécanisme, ainsi qu'une montre chronographe, notamment une montre chronographe bracelet, comprenant un tel mouvement.The present invention relates to a mechanism for a chronograph watch movement. The present invention also relates to a chronograph watch movement comprising such a mechanism, as well as a chronograph watch, in particular a chronograph wristwatch, comprising such a movement.

Etat de la techniqueState of the art

Une montre chronographe est un appareil horaire qui permet d'effectuer une mesure de durée. Par contre le chronomètre est un appareil horaire de précision. Un chronographe peut être qualifié ou non de chronomètre.A chronograph watch is a time device that allows you to measure duration. On the other hand, the chronometer is a precision time device. A chronograph may or may not be qualified as a chronometer.

En règle générale, on appelle montre chronographe une montre comportant au moins un indicateur tel qu'une aiguille qui peut être mis en marche, puis arrêté, au moyen d'un poussoir ou d'un autre dispositif de commande, afin de mesurer une durée. Ensuite, il peut être ramené à son point de départ. De nombreux chronographes comportent également des indicateurs pour l'affichage de l'heure courante en plus de l'affichage de la durée mesurée.As a general rule, a chronograph watch is called a watch comprising at least one indicator such as a hand which can be started, then stopped, by means of a push-piece or other control device, in order to measure a duration. . Then it can be brought back to its starting point. Many chronographs also include indicators for displaying the current time in addition to displaying the measured time.

Lorsque l'on exerce une première pression sur un poussoir (ou un autre dispositif de commande) d'une montre chronographe, l'indicateur ou aiguille trotteuse (dite également « indicateur des secondes chronographe » ou « aiguille des secondes chronographe »), qui se trouve au repos sur la division zéro du cadran, se met en marche (phase « START »). Une deuxième pression sur le même poussoir ou sur un autre poussoir a pour effet d'arrêter la trotteuse au point précis où elle se trouvait lors de cette pression (phase « STOP »). Par une troisième pression, sur le même poussoir ou sur un autre, la trotteuse revient rapidement à son point de départ, c'est-à-dire sur la division zéro du cadran (phase « RESET »). De cette façon, il est possible de mesurer une durée en secondes.When a first pressure is exerted on a push-piece (or other control device) of a chronograph watch, the indicator or second hand (also called “chronograph seconds indicator” or “chronograph seconds hand”), which is at rest on the zero division of the dial, starts up (“START” phase). Pressing the same push-button or another push-button a second time has the effect of stopping the second hand at the exact point where it was when pressed (“STOP” phase). By a third press, on the same pusher or another, the second hand quickly returns to its starting point, that is to say on the zero division of the dial (“RESET” phase). In this way, it is possible to measure a duration in seconds.

Les trois phases ou fonctions d'une montre chronographe sont donc le départ ou start, l'arrêt ou stop et la remise à zéro ou reset.The three phases or functions of a chronograph watch are therefore start or start, stop or stop and reset or reset.

Les phases de « STOP » et « RESET » sont en règle générale commandées par un autre poussoir que celui dédié à la phase « START ».The “STOP” and “RESET” phases are generally controlled by a button other than the one dedicated to the “START” phase.

Un possible mécanisme de chronographe connu est celui avec la roue à colonnes qui utilise deux poussoirs ou dispositifs de commande, l'un pour les fonctions « START » et « STOP », l'autre pour la remise à zéro (« RESET »).A possible known chronograph mechanism is that with the column wheel which uses two push-pieces or control devices, one for the “START” and “STOP” functions, the other for resetting (“RESET”).

Pour réaliser ces diverses opérations, plusieurs systèmes ont été développés, simples ou complexes en fonction de ce que l'on souhaite afficher et comment. Un grand nombre de combinaisons et de variantes de mécanismes ont été réalisées en fonction du type de commande et d'affichage souhaités.To perform these various operations, several systems have been developed, simple or complex depending on what you want to display and how. A large number of combinations and variations of mechanisms have been made depending on the type of control and display desired.

Les montres chronographes usuelles prélèvent l'énergie nécessaire au fonctionnement de la partie du mouvement permettant la mesure d'une durée, sur la chaîne cinématique permettant de compter et d'afficher l'heure courante, c'est-à-dire sur la chaîne cinématique liant une source d'énergie, par exemple un barillet, à l'organe régulateur et aux roues de la montre, qui sont liées aux indicateurs de la montre afin d'afficher l'heure, les minutes et/ou les secondes courantes.The usual chronograph watches take the energy necessary for the operation of the part of the movement allowing the measurement of a duration, on the kinematic chain making it possible to count and display the current time, that is to say on the chain kinematics linking a source of energy, for example a barrel, to the regulating member and to the wheels of the watch, which are linked to the indicators of the watch in order to display the current hour, minutes and / or seconds.

Dans le contexte de la présente invention, le mot « roue » indique un mobile qui peut être mis en rotation et qui permet un embrayage avec une denture d'un autre mobile. Dans une variante préférentielle, une roue est une roue dentée. Une telle roue est généralement liée à un indicateur, par exemple une aiguille.In the context of the present invention, the word “wheel” indicates a mobile which can be rotated and which allows a clutch with a toothing of another mobile. In a variant preferentially, a wheel is a toothed wheel. Such a wheel is generally linked to an indicator, for example a needle.

Dans le contexte de la présente invention, le mot « compteur » indique un moyen fournissant une information relative à une durée comptée. Plus précisément, un cadran et un indicateur forment un compteur.In the context of the present invention, the word “counter” indicates a means providing information relating to a counted duration. More precisely, a dial and an indicator form a counter.

Afin de prélever cette énergie nécessaire pour mettre en mouvement la chaîne cinématique permettant la mesure d'une durée temporelle, il est nécessaire de réaliser un embrayage entre la chaîne cinématique liant une source d'énergie (par exemple un barillet) à l'organe régulateur et celle qui permet de mesurer une durée temporelle.In order to take this energy necessary to set in motion the kinematic chain allowing the measurement of a temporal duration, it is necessary to produce a clutch between the kinematic chain linking an energy source (for example a barrel) to the regulator member and that which makes it possible to measure a temporal duration.

Deux organes principaux sont utilisés dans la majorité des fonctionnements des mécanismes pour montre chronographe, à savoir des dispositifs de commande et des dispositifs d'embrayage.Two main parts are used in the majority of the operations of the mechanisms for a chronograph watch, namely the control devices and the clutch devices.

Les dispositifs de commande peuvent être à came ou à roue à colonnes. Comme ils sont connus en soi dans le domaine de la technique, ils ne seront pas décrits ici.The control devices can be cam or column wheel. As they are known per se in the art, they will not be described here.

Les dispositifs d'embrayage connus permettent d'embrayer la roue des secondes du temps courant (dite aussi « roue des secondes mouvement » ou « roue des secondes ») à la roue des secondes chronographe. La roue des secondes chronographe permet d'entraîner un indicateur des secondes qui fait un tour complet de cadran lorsque le temps chronométré atteint un nombre entier de secondes, dans la plupart des cas soixante secondes.Known clutch devices make it possible to engage the current time seconds wheel (also known as the “second movement wheel” or “seconds wheel”) to the chronograph seconds wheel. The chronograph seconds wheel drives a seconds indicator which makes a full revolution of the dial when the measured time reaches a whole number of seconds, in most cases sixty seconds.

Ensuite, la roue des secondes chronographe entraîne, par exemple par l'intermédiaire d'un rouage démultiplicatif, d'autres roues qui permettent de compter un temps chronométré, généralement une roue des minutes chronographe, voire également une roue des heures chronographe.Then, the chronograph seconds wheel drives, for example by means of a reduction gear, other wheels which make it possible to count a measured time, generally a wheel of the seconds. chronograph minutes, or even a chronograph hour wheel.

En d'autres mots, l'énergie provenant du « mouvement de base », c'est-à-dire du mouvement qui permet d'afficher le temps courant (secondes, minutes et/ou heures) est redistribuée ensuite aux différentes roues qui permettent de compter un temps chronométré directement par la roue des secondes chronographe.In other words, the energy coming from the "basic movement", that is to say from the movement which makes it possible to display the current time (seconds, minutes and / or hours) is then redistributed to the various wheels which allow you to count a measured time directly by the chronograph seconds wheel.

Différents types de dispositifs d'embrayage, notamment des dispositifs d'embrayage vertical et horizontal, sont connus.Different types of clutch devices, in particular vertical and horizontal clutch devices, are known.

Des dispositifs d'embrayage vertical permettent un embrayage dit « vertical » entre les deux chaînes cinématiques, notamment entre une roue d'une chaîne cinématique (celle qui permet de déterminer l'heure courante) et une roue de l'autre chaîne cinématique (celle qui permet d'effectuer une mesure d'une durée).Vertical clutch devices allow a so-called "vertical" clutch between the two kinematic chains, in particular between a wheel of a kinematic chain (that which makes it possible to determine the current time) and a wheel of the other kinematic chain (that which allows a measurement of a duration).

Dans le cas d'un embrayage vertical, la transmission d'énergie ne se fait pas par denture, mais par friction, par exemple sur les faces des roues. L'avantage de ce type d'embrayage est que l'entraînement du compteur qui permet la mesure d'une durée temporelle se fait sans saut de départ. Cet embrayage est compact et bien adapté pour des productions en grande quantité. Par contre, il est coûteux en raison du nombre élevé de pièces et sa mise au point reste assez difficile.In the case of a vertical clutch, the energy transmission is not effected by toothing, but by friction, for example on the faces of the wheels. The advantage of this type of clutch is that the drive of the counter which allows the measurement of a time duration is done without starting jump. This clutch is compact and well suited for large quantity productions. On the other hand, it is expensive because of the high number of parts and its development remains quite difficult.

Les documents CH705988 et CH709162 décrivent un embrayage de type vertical.The documents CH705988 and CH709162 describe a vertical type clutch.

Des dispositifs d'embrayage latéral ou horizontal permettent de coupler deux roues en les mettant en contact par leur périphérie (denture). Le désavantage de ce type d'embrayage est que lors de l'entraînement de la roue de comptage d'un temps chronométré il est possible d'avoir un saut de départ occasionné par un mauvais alignement des dentures des deux roues. L'écart est d'autant plus réduit qu'il y a de dents. Cependant des dentures avec beaucoup de dents sont difficiles à fabriquer et plus sujettes à l'usure. Dans ce type de dispositifs, il n'y a aucun mouvement d'oscillation ni de basculement des éléments de ces dispositifs.Lateral or horizontal clutch devices make it possible to couple two wheels by bringing them into contact via their periphery (toothing). The disadvantage of this type of clutch is that when driving the counting wheel of a measured time it is possible to have a jump starting caused by a bad alignment of the teeth of the two wheels. The gap is even smaller the more teeth there are. However, teeth with a lot of teeth are difficult to manufacture and more subject to wear. In this type of device, there is no oscillation or tilting movement of the elements of these devices.

Le document EP2570869 décrit un dispositif d'embrayage latéral ou horizontal.The document EP2570869 describes a lateral or horizontal clutch device.

Il existe également des dispositifs d'embrayage à pignon oscillant, qui permettent une transmission d'énergie de la part de la roue des secondes à celle des secondes chronographe à l'aide d'un pignon oscillant. Ce pignon oscillant comporte une première denture qui est en contact permanent avec la roue des secondes. Ce pignon oscillant, sous l'action d'un dispositif d'actionnement tel qu'une bascule, oscille ou bascule, de façon à ce que sa deuxième denture entre en contact avec la roue des secondes chronographe, en la mettant ainsi également en rotation.There are also oscillating pinion clutch devices, which allow energy transmission from the seconds wheel to the chronograph seconds wheel using an oscillating pinion. This oscillating pinion has a first toothing which is in permanent contact with the seconds wheel. This oscillating pinion, under the action of an actuating device such as a rocker, oscillates or tilts, so that its second toothing comes into contact with the chronograph seconds wheel, thus also rotating it. .

Le document CH700808 décrit un dispositif d'embrayage à pignon oscillant entre la roue de seconde mouvement et la roue de seconde chronographe.The document CH700808 describes a pinion clutch device oscillating between the second movement wheel and the second chronograph wheel.

Comme mentionné, l'énergie de la roue des secondes chronographe est ensuite redistribuée aux différentes roues qui permettent la mesure d'une durée, notamment la roue des minutes chronographe et la roue des heures chronographe.As mentioned, the energy of the chronograph seconds wheel is then redistributed to the various wheels which allow the measurement of a duration, in particular the chronograph minute wheel and the chronograph hour wheel.

Cependant, la roue des secondes chronographe est l'un des composants où il y a le moins d'énergie. Donc, toute perturbation sur cette roue, par exemple des perturbations liées au fait que cette roue entraîne les roues des minutes chronographe et des heures chronographe, aura des conséquences sur le fonctionnement des divers autres mécanismes du mouvement de base qui permet de mesurer et afficher l'heure courante, auxquels la roue des secondes chronographe est liée via la roue des secondes mouvement. Par exemple toute perturbation sur la roue des secondes chronographe aura des conséquences sur la précision du mouvement de base, la réserve de marche du mouvement de base, etc.However, the chronograph seconds wheel is one of the components with the least energy. Therefore, any disturbance on this wheel, for example disturbances linked to the fact that this wheel drives the chronograph minutes and chronograph hours wheels, will have consequences on the operation of the various other mechanisms of the base movement which make it possible to measure and display the time. current time, to which the chronograph seconds wheel is linked via the second movement wheel. For example, any disturbance on the chronograph seconds wheel will have consequences on the precision of the basic movement, the power reserve of the basic movement, etc.

En outre, dans les mécanismes pour mouvement de montre chronographe connus, le réglage ou la mise au point des roues des minutes chronographe et/ou des heures chronographe est compliquée, en raison de leur dépendance de la roue des secondes chronographe.In addition, in known chronograph watch movement mechanisms, the adjustment or tuning of the chronograph minute and / or chronograph hour wheels is complicated, due to their dependence on the chronograph seconds wheel.

Enfin, l'agencement des mécanismes pour mouvement de montre chronographe connus aboutit à un encombrement important, ce qui est peu souhaitable dans le cas de certains mouvements d'une montre chronographe.Finally, the arrangement of the known chronograph watch movement mechanisms results in a significant bulk, which is undesirable in the case of certain movements of a chronograph watch.

Le document EP2073079 concerne un mécanisme de chronographe de type à roue à colonnes, dans lequel la roue à colonnes coopère avec une bascule d'embrayage, portant un renvoi d'embrayage et est montée pivotante sur la platine entre une première position de repos et une seconde position d'entrainement d'un rouage de chronographe, à partir d'un rouage de finissage, par l'intermédiaire de la roue de chronographe engrenant ou non avec le renvoi d'embrayage. Ce document décrit qu'une bascule d'embrayage supplémentaire peut être prévue pour assurer l'entraînement du mobile des heures, par exemple à partir de la roue de moyenne. Le compteur des minutes est entraîné à partir du compteur de secondes, de manière conventionnelle.The document EP2073079 relates to a column wheel type chronograph mechanism, in which the column wheel cooperates with a clutch lever, carrying a clutch return and is pivotally mounted on the plate between a first rest position and a second position of 'driving a chronograph train, from a finishing train, via the chronograph wheel meshing or not with the clutch return. This document describes that an additional clutch lever can be provided to ensure the driving of the hours mobile, for example from the average wheel. The minute counter is driven from the second counter in a conventional manner.

Le document CH527462 concerne une montre chronographe dans laquelle le mécanisme du chronographe, dans sa quasi-totalité, est porté par un bâti indépendant se fixant de façon amovible au bâti du mouvement. Ce mécanisme comprend un embrayage à pignon oscillant entre la roue chronographe et la roue des secondes du mouvement.The document CH527462 relates to a chronograph watch in which the chronograph mechanism, in almost its entirety, is carried by an independent frame which is removably fixed to the frame of the movement. This mechanism comprises a pinion clutch oscillating between the chronograph wheel and the seconds wheel of the movement.

Bref résumé de l'inventionBrief summary of the invention

Un but de la présente invention est donc celui de fournir un mécanisme pour mouvement de montre chronographe qui soit moins sensible aux perturbations par rapport aux mécanismes connus.An aim of the present invention is therefore that of providing a mechanism for a chronograph watch movement which is less sensitive to disturbances compared to known mechanisms.

Un autre but de la présente invention est donc celui de fournir un mécanisme pour mouvement de montre chronographe dans lequel la mise au point des roues des minutes et/ou des heures soit moins compliquée.Another aim of the present invention is therefore that of providing a mechanism for a chronograph watch movement in which the development of the minute and / or hour wheels is less complicated.

Un autre but de la présente invention est donc celui de fournir un mécanisme pour mouvement de montre chronographe qui engendre moins d'encombrement que les mécanismes connus.Another aim of the present invention is therefore that of providing a mechanism for a chronograph watch movement which creates less space than the known mechanisms.

Un autre but de la présente invention est donc celui de fournir un mécanisme pour mouvement de montre chronographe exempt des limitations des mécanismes connus.Another aim of the present invention is therefore that of providing a mechanism for a chronograph watch movement free from the limitations of known mechanisms.

Selon l'invention, ces buts sont atteints notamment au moyen d'un mécanisme pour mouvement de montre chronographe comprenant :

  • une source d'énergie,
  • une roue des secondes chronographe,
  • une roue de compteur d'un temps déterminé, différente de la roue des secondes chronographe,
  • un dispositif d'actionnement d'un pignon oscillant, et
  • ce pignon oscillant qui comprend :
    • une première denture arrangée pour engrener avec la source d'énergie du mouvement,
    • une deuxième denture arrangée pour se déplacer sous l'action du dispositif d'actionnement de façon à engrener avec la roue de compteur d'un temps déterminé, en réalisant ainsi un embrayage à pignon oscillant entre la source d'énergie et la roue de compteur d'un temps déterminé.
According to the invention, these aims are achieved in particular by means of a mechanism for a chronograph watch movement comprising:
  • a source of energy,
  • a chronograph seconds wheel,
  • a counter wheel of a determined time, different from the chronograph seconds wheel,
  • a device for actuating an oscillating pinion, and
  • this oscillating pinion which includes:
    • a first toothing arranged to mesh with the energy source of the movement,
    • a second toothing arranged to move under the action of the actuator so as to mesh with the counter wheel for a determined time, thus providing a pinion clutch oscillating between the power source and the counter wheel of a determined time.

Selon l'invention, la roue de compteur d'un temps déterminé est ainsi entraînée uniquement par la source d'énergie via le pignon oscillant, de façon à ce que la rotation de la roue des secondes chronographe ne soit pas perturbée par la rotation de la roue de compteur d'un temps déterminé.According to the invention, the counter wheel for a determined time is thus driven solely by the energy source via the oscillating pinion, so that the rotation of the chronograph seconds wheel is not disturbed by the rotation of the chronograph seconds wheel. the counter wheel of a determined time.

En d'autres mots, le mécanisme selon l'invention permet de dissocier la fonction de la roue des secondes chronographe de celle de compteur d'un temps déterminé, par exemple un compteur des minutes ou des heures chronométrées, dans le but de ne pas perturber la marche du mouvement de base lorsque le chronographe est enclenché.In other words, the mechanism according to the invention makes it possible to dissociate the function of the chronograph seconds wheel from that of a determined time counter, for example a minutes counter or of the timed hours, in order not to disrupt the rate of the basic movement when the chronograph is engaged.

Le mécanisme selon l'invention permet ainsi de désolidariser le mouvement (ou rotation) de la roue des secondes chronographe de celui (ou celle) de la roue de compteur d'un temps déterminé. En d'autres mots, la roue des secondes chronographe du mécanisme selon l'invention n'entraîne plus la roue de compteur d'un temps déterminé. Ceci signifie encore que dans le mécanisme selon l'invention il n'y a jamais de contact entre la roue des secondes chronographe et la roue de compteur d'un temps déterminé. En d'autre termes, la chaîne de transmission ou chaîne cinématique du mécanisme selon l'invention relie la roue des secondes chronographe et la roue de compteur d'un temps déterminé, uniquement via la source d'énergie et par nul autre chemin.The mechanism according to the invention thus makes it possible to separate the movement (or rotation) of the chronograph seconds wheel from that (or that) of the counter wheel of a determined time. In other words, the chronograph seconds wheel of the mechanism according to the invention no longer drives the counter wheel for a determined time. This also means that in the mechanism according to the invention there is never any contact between the chronograph seconds wheel and the counter wheel for a determined time. In other words, the transmission chain or kinematic chain of the mechanism according to the invention connects the chronograph seconds wheel and the counter wheel of a determined time, only via the energy source and by no other path.

En outre, comme le pignon oscillant permet un embrayage à pignon oscillant entre la source d'énergie et la roue de compteur d'un temps déterminé, l'énergie pour entraîner la roue de compteur d'un temps déterminé est prise sur une source d'énergie qui a davantage d'énergie que la roue des secondes chronographe. Par conséquent, les perturbations sur cette source d'énergie n'auront aucune incidence sur la roue de compteur d'un temps déterminé, ou bien auront une incidence bien inférieure à celle de l'état de la technique qui s'appuie sur l'énergie de la roue des secondes chronographe. Enfin, les perturbations sur cette source d'énergie n'auront aucune incidence sur l'organe régulateur du mouvement de base, ou bien auront une incidence bien inférieure à celle de l'état de la technique.Further, since the oscillating pinion enables an oscillating pinion clutch between the power source and the determined time counter wheel, the energy to drive the determined time counter wheel is taken from a source of. energy that has more energy than the chronograph seconds wheel. Therefore, disturbances on this energy source will not affect the counter wheel for a determined time, or will have an impact much less than that of the state of the art which relies on the energy of the chronograph seconds wheel. Finally, disturbances on this energy source will not no incidence on the regulating organ of the basic movement, or else will have an incidence much lower than that of the state of the art.

En d'autres mots, la roue de compteur d'un temps déterminé n'est plus entrainée par la roue des secondes chronographe. Elle prend son énergie depuis une source d'énergie lui fournissant une énergie bien plus grande que celle fournie par la roue des secondes chronographe, et donc qui est moins sensibles aux perturbations.In other words, the counter wheel for a determined time is no longer driven by the chronograph seconds wheel. It takes its energy from an energy source providing it with much greater energy than that supplied by the chronograph seconds wheel, and which is therefore less sensitive to disturbances.

Dans le contexte de la présente invention, l'expression « source d'énergie » indique un barillet ou bien un mobile intermédiaire lié, notamment directement lié, au barillet, c'est-à-dire en contact avec un barillet.In the context of the present invention, the expression “energy source” indicates a barrel or else an intermediate mobile unit linked, in particular directly linked, to the barrel, that is to say in contact with a barrel.

On comprend donc bien qu'un mobile qui est lié au barillet via une chaîne d'autres mobiles, par exemple via un train de rouages, n'est pas une source d'énergie selon ce contexte. Par exemple, la roue des secondes mouvement n'est pas une source d'énergie selon la définition donnée dans le contexte de cette invention.It is therefore well understood that a mobile which is linked to the barrel via a chain of other mobiles, for example via a cog train, is not a source of energy in this context. For example, the second movement wheel is not a source of energy as defined in the context of this invention.

Comme expliqué précédemment, l'invention vise donc à désolidariser le mouvement de la roue de compteur d'un temps déterminé de celui de la roue des secondes chronographe à l'aide d'un pignon oscillant qui n'est disposé entre cette roue de compteur d'un temps déterminé et cette roue des secondes chronographe. Cette désolidarisation ainsi que la présence du pignon oscillant permettent une simplification de la mise au point et du fonctionnement de la roue de compteur d'un temps déterminé, car cette roue de compteur d'un temps déterminé n'est plus entraînée par la roue des secondes chronographe. En outre, le pignon oscillant permet un meilleur accès à la roue des de compteur d'un temps déterminé.As explained above, the invention therefore aims to separate the movement of the counter wheel for a determined time from that of the chronograph seconds wheel by means of an oscillating pinion which is not disposed between this counter wheel. time and this chronograph seconds wheel. This separation and the presence of the oscillating pinion simplify the development and operation of the counter wheel of a determined time, because this counter wheel of a determined time is no longer driven by the wheel of chronograph seconds. In addition, the oscillating pinion allows better access to the counter wheel of a determined time.

Cette désolidarisation ainsi que la présence du pignon oscillant permettent également un agencement peu encombrant tout en permettant de réduire de manière significative le saut de départ à la roue de compteur d'un temps déterminé.This separation as well as the presence of the oscillating pinion also allow a space-saving arrangement while at the same time allowing to significantly reduce the starting jump to the counter wheel of a determined time.

Selon l'invention, cette roue de compteur d'un temps prédéterminé est une roue des minutes chronographe. Autrement dit, la roue de compteur d'un temps prédéterminé est une roue de compteur N minutes, N étant un nombre entier positif. Par exemple, elle est une roue de compteur soixante minutes (N = 60) : elle permet d'entraîner un indicateur des minutes chronographe qui fait un tour complet d'un cadran lorsque le temps chronométré atteint soixante minutes. Dans une autre variante, elle est une roue de compteur trente minutes (N = 30) : elle permet d'entraîner un indicateur des minutes chronographe qui fait un tour complet d'un cadran lorsque le temps chronométré atteint trente minutes. Tout autre nombre entier N pourrait à priori être envisagé, notamment N=45.According to the invention, this counter wheel with a predetermined time is a chronograph minute wheel. In other words, the counter wheel of a predetermined time is an N minute counter wheel, N being a positive integer. For example, it is a sixty minute counter wheel (N = 60): it is used to drive a chronograph minutes indicator which makes a complete revolution of a dial when the measured time reaches sixty minutes. In another variant, it is a thirty-minute counter wheel (N = 30): it makes it possible to drive a chronograph minutes indicator which makes a complete revolution of a dial when the measured time reaches thirty minutes. Any other integer N could a priori be considered, in particular N = 45.

Dans une variante non revendiquée, cette roue de compteur d'un temps prédéterminé est une roue des heures chronographe. Autrement dit, dans cette variante, la roue de compteur d'un temps prédéterminé est une roue de compteur M heures, M étant un nombre entier positif. Par exemple, elle est une roue de compteur douze heures (M = 12) : elle permet d'entraîner un indicateur des heures chronographe qui fait un tour complet d'un cadran lorsque le temps chronométré atteint douze heures. Tout autre nombre entier M pourrait à priori être envisagé.In an unclaimed variant, this predetermined time counter wheel is a chronograph hour wheel. In other words, in this variant, the counter wheel of a predetermined time is an M hour counter wheel, M being a positive integer. For example, it is a twelve-hour counter wheel (M = 12): it makes it possible to drive a chronograph hour indicator which makes a full revolution of a dial when the measured time reaches twelve hours. Any other integer M could a priori be considered.

Le mécanisme selon l'invention offre un grand nombre de possibilités pour les compteurs N minutes et/ou M heures, car N et M peuvent être choisis en fonction des rapports d'engrenages entre la source d'énergie et la roue de compteur d'un temps déterminé, du nombre de dents de la source d'énergie et/ou de la roue de compteur d'un temps déterminé, et/ou en fonction de leurs entraxes.The mechanism according to the invention offers a large number of possibilities for N minutes and / or M hours counters, since N and M can be chosen according to the gear ratios between the energy source and the counter wheel. a determined time, the number of teeth of the energy source and / or the counter wheel of a determined time, and / or according to their centers.

Selon un aspect indépendant de l'invention, la roue de compteur d'un temps prédéterminé est remplacée par une roue décompteur.According to an independent aspect of the invention, the counter wheel of a predetermined time is replaced by a countdown wheel.

Dans une variante préférentielle, le pignon oscillant est un premier pignon oscillant et le dispositif d'actionnement est un premier dispositif d'actionnement. Dans cette variante, le mécanisme selon l'invention comprend également :

  • une roue des secondes mouvement,
  • une roue des secondes chronographe,
  • un deuxième pignon oscillant.
In a preferred variant, the oscillating pinion is a first oscillating pinion and the actuating device is a first actuating device. In this variant, the mechanism according to the invention also comprises:
  • a second movement wheel,
  • a chronograph seconds wheel,
  • a second oscillating pinion.

Ce deuxième pignon oscillant comprend :

  • une première denture arrangée pour engrener avec la roue des secondes mouvement;
  • une deuxième denture arrangée pour se déplacer sous l'action du premier dispositif d'actionnement ou d'un deuxième dispositif d'actionnement, de façon à engrener avec la roue des secondes chronographe, en réalisant ainsi un embrayage à pignon oscillant entre la roue des secondes mouvement et la roue des secondes chronographe.
This second oscillating pinion includes:
  • a first toothing arranged to mesh with the wheel of the second movements;
  • a second toothing arranged to move under the action of the first actuator or of a second actuator, so as to mesh with the second chronograph wheel, thus providing a pinion clutch oscillating between the wheel of the seconds movement and chronograph seconds wheel.

Le mécanisme selon l'invention dans cette variante comprend ainsi deux pignons oscillants. Dans cette variante, le nombre de dents de la deuxième denture du premier pignon oscillant peut être égal au nombre de dents de la deuxième denture du deuxième pignon oscillant, ce qui simplifie davantage le réglage du mécanisme selon l'invention. Dans d'autres variantes, le nombre de dents de la deuxième denture du premier pignon oscillant peut être inférieur ou supérieur au nombre de dents de la deuxième denture du deuxième pignon oscillant.The mechanism according to the invention in this variant thus comprises two oscillating pinions. In this variant, the number of teeth of the second toothing of the first oscillating pinion may be equal to the number of teeth of the second toothing of the second oscillating pinion, which further simplifies the adjustment of the mechanism according to the invention. In other variants, the number of teeth of the second toothing of the first oscillating pinion may be less or greater than the number of teeth of the second toothing of the second oscillating pinion.

Dans une variante préférentielle, la roue de compteur d'un temps déterminé est une première roue et le mécanisme selon l'invention comprend une deuxième roue de compteur d'un temps déterminé. Par exemple, si la première roue de compteur d'un temps déterminé est une roue des minutes chronographe, la deuxième roue peut être une roue des heures chronographe.In a preferred variant, the counter wheel for a determined time is a first wheel and the mechanism according to the invention comprises a second counter wheel for a determined time. For example, if the first counter wheel of a determined time is a chronograph minute wheel, the second wheel may be a chronograph hour wheel.

Dans cette variante préférentielle, le mécanisme comprend un troisième pignon oscillant réalisant un embrayage à pignon oscillant entre la source d'énergie (ou une autre source d'énergie) et la deuxième roue de compteur d'un temps déterminé.In this preferred variant, the mechanism comprises a third oscillating pinion producing a pinion clutch oscillating between the energy source (or another energy source) and the second counter wheel for a determined time.

Par exemple la source d'énergie est un mobile intermédiaire directement en contact avec un barillet, qui peut engrener d'une part avec la deuxième denture du premier pignon oscillant et de l'autre part avec la deuxième denture du troisième pignon oscillant, permettant ainsi de faire tourner par exemple une roue des minutes chronographe (coopérant avec le premier pignon oscillant) et une roue des heures chronographe (coopérant avec le troisième pignon oscillant).For example, the energy source is an intermediate moving body directly in contact with a barrel, which can mesh on the one hand with the second toothing of the first oscillating pinion and on the other hand with the second toothing of the third oscillating pinion, thus allowing for example to rotate a chronograph minute wheel (cooperating with the first oscillating pinion) and a chronograph hour wheel (cooperating with the third oscillating pinion).

Dans un autre exemple, la source d'énergie coopérant avec le premier pignon oscillant est différente de celle coopérant avec le troisième pignon oscillant. Par exemple la source d'énergie coopérant avec le premier pignon oscillant est un premier mobile intermédiaire en contact avec une première denture d'un barillet à double denture, et la source d'énergie coopérant avec le troisième pignon oscillant est un deuxième mobile intermédiaire en contact avec une deuxième denture du barillet à double denture.In another example, the energy source cooperating with the first oscillating pinion is different from that cooperating with the third oscillating pinion. For example, the energy source cooperating with the first oscillating pinion is a first intermediate mobile in contact with a first toothing of a double-toothed barrel, and the energy source cooperating with the third oscillating pinion is a second intermediate mobile in contact with a second toothing of the double-toothed barrel.

Dans une variante, ce troisième pignon oscillant est actionné par le premier dispositif d'actionnement (par exemple une bascule qui peut actionner soit le premier pignon oscillant seulement, soit à la fois le premier et le deuxième pignon oscillant).In a variant, this third oscillating pinion is actuated by the first actuator (for example a rocker which can actuate either the first oscillating pinion only, or both the first and the second oscillating pinion).

Dans une autre variante, ce troisième pignon oscillant est actionné par le deuxième dispositif d'actionnement qui actionne aussi le deuxième pignon oscillant.In another variant, this third oscillating pinion is actuated by the second actuating device which also actuates the second oscillating pinion.

Dans une autre variante encore, ce troisième pignon oscillant est actionné par un troisième dispositif d'actionnement qui n'actionne aucun autre pignon oscillant.In yet another variant, this third oscillating pinion is actuated by a third actuating device which does not actuate any other oscillating pinion.

Dans tous les cas, le troisième pignon oscillant comprend une première denture arrangée pour engrener avec une source d'énergie du mouvement et une deuxième denture arrangée pour se déplacer sous l'action d'un dispositif d'actionnement (le premier, le deuxième ou un troisième dispositif d'actionnement), de façon à engrener avec la deuxième roue de compteur d'un temps déterminé, en réalisant ainsi un embrayage à pignon oscillant entre la source d'énergie et la deuxième roue de compteur d'un temps déterminé.In all cases, the third oscillating pinion comprises a first toothing arranged to mesh with a source of energy of the movement and a second toothing arranged to move under the action of an actuating device (the first, the second or a third actuating device), so as to mesh with the second counter wheel for a determined time, thereby producing a pinion clutch oscillating between the energy source and the second counter wheel for a determined time.

L'homme du métier comprend donc qu'il est possible d'ajouter une quatrième roue de compteur d'un temps déterminé associée à un quatrième pignon oscillant, ce quatrième pignon oscillant étant actionné par un dispositif d'actionnement qui actionne déjà un autre pignon oscillant, ou par un autre dispositif d'actionnement, et réalisant un embrayage à pignon oscillant entre cette quatrième roue de compteur et une source d'énergie du mouvement (par exemple un barillet, un mobile intermédiaire directement lié au barillet et coopérant déjà avec un autre pignon oscillant ou bien un autre mobile intermédiaire directement lié au barillet qui coopère seulement avec le quatrième pignon oscillant).Those skilled in the art therefore understand that it is possible to add a fourth counter wheel of a determined time associated with a fourth oscillating pinion, this fourth oscillating pinion being actuated by an actuating device which already actuates another pinion. oscillating, or by another actuating device, and providing a pinion clutch oscillating between this fourth counter wheel and a source of energy of the movement (for example a barrel, an intermediate mobile directly linked to the barrel and already cooperating with a another oscillating pinion or another intermediate mobile directly linked to the barrel which only cooperates with the fourth oscillating pinion).

L'homme du métier comprendra également qu'il est possible de continuer à ajouter une cinquième, sixième, etc. roue de compteur d'un temps déterminé, chaque roue supplémentaire étant associée à un nouveau pignon oscillant, lequel nouveau pignon oscillant est actionné par un dispositif d'actionnement supplémentaire ou par un dispositif d'actionnement qui actionne déjà un autre pignon oscillant, et réalisant un embrayage à pignon oscillant entre cette roue et une source d'énergie supplémentaire (par exemple un autre mobile intermédiaire directement lié au barillet qui coopère seulement avec le pignon oscillant supplémentaire) ou bien par une source d'énergie du mouvement coopérant déjà avec un autre pignon oscillant.Those skilled in the art will also understand that it is possible to continue to add a fifth, sixth, etc. counter wheel of a determined time, each additional wheel being associated with a new oscillating pinion, which new oscillating pinion is actuated by an additional actuating device or by an actuating device which already actuates another oscillating pinion, and carrying out a pinion clutch oscillating between this wheel and an additional source of energy (for example another intermediate moving body directly linked to the barrel which cooperates only with the additional oscillating pinion) or else by a source of energy of the movement already cooperating with another oscillating pinion.

Dans une variante, le mécanisme selon l'invention comprend le premier dispositif d'actionnement. Ce premier dispositif d'actionnement peut être agencé pour commander à la fois le premier et le deuxième pignon oscillant (et également tout autre pignon oscillant supplémentaire), ce qui permet de réduire le nombre de composants du mécanisme et donc son coût et encombrement.In a variant, the mechanism according to the invention comprises the first actuating device. This first actuator can be arranged to control both the first and the second oscillating pinion (and also any other additional oscillating pinion), which makes it possible to reduce the number of components of the mechanism and therefore its cost and bulk.

Dans une autre variante le mécanisme selon l'invention comprend un deuxième dispositif d'actionnement qui permet de commander le deuxième pignon oscillant, le premier pignon oscillant étant actionné par le premier dispositif d'actionnement.In another variant, the mechanism according to the invention comprises a second actuating device which makes it possible to control the second oscillating pinion, the first oscillating pinion being actuated by the first actuating device.

Dans une variante, le premier dispositif d'actionnement et/ou le deuxième dispositif d'actionnement (et/ou tout autre dispositif d'actionnement supplémentaire coopérant avec tout autre pignon supplémentaire) est une bascule.In a variant, the first actuating device and / or the second actuating device (and / or any other additional actuating device cooperating with any other additional pinion) is a rocker.

Dans une variante, le mécanisme selon l'invention comprend un dispositif de commande actionnant le premier et/ou le deuxième dispositif d'actionnement et/ou tout autre dispositif d'actionnement supplémentaire, ce dispositif de commande étant par exemple un dispositif de commande à came et/ou à roue à colonne.In a variant, the mechanism according to the invention comprises a control device actuating the first and / or the second actuating device and / or any other additional actuating device, this control device being for example a control device with cam and / or column wheel.

Dans une variante, le pignon oscillant comprend plus que deux dentures sur son axe. Dans cette variante il est ainsi possible de réaliser un double embrayage avec un seul pignon oscillant.In a variant, the oscillating pinion comprises more than two teeth on its axis. In this variant, it is thus possible to produce a double clutch with a single oscillating pinion.

L'invention concerne également un mouvement de montre chronographe comprenant le mécanisme selon l'invention.The invention also relates to a chronograph watch movement comprising the mechanism according to the invention.

Dans une variante, le mécanisme selon l'invention est un module qui peut être intégré dans un mouvement de montre déjà existant. Par exemple, ce module peut être vendu séparément du mouvement de montre dans lequel il peut être intégré.In a variant, the mechanism according to the invention is a module which can be integrated into an already existing watch movement. For example, this module can be sold separately from the watch movement in which it can be integrated.

L'invention concerne également une montre chronographe comprenant le mouvement de montre chronographe selon l'invention.The invention also relates to a chronograph watch comprising the chronograph watch movement according to the invention.

Brève description des figuresBrief description of the figures

Des exemples de mise en œuvre de l'invention sont indiqués dans la description illustrée par les figures annexées dans lesquelles :

  • La figure 1 illustre une vue en coupe d'un mode de réalisation du mécanisme selon l'invention.
  • La figure 2 illustre une vue en perspective d'un mode de réalisation du pignon oscillant du mécanisme selon l'invention.
  • La figure 3 illustre une vue frontale d'un mode de réalisation d'une montre chronographe selon l'invention.
  • La figure 4 illustre une vue en perspective d'un mode de réalisation d'un mouvement selon l'invention.
  • La figure 5 illustre une vue de dessus du mode de réalisation du mouvement de la figure 4.
  • La figure 6 illustre la vue de dessus de la figure 5, sans la roue des secondes chronographe.
  • La figure 7 illustre une vue en coupe d'un mode de réalisation d'un mouvement selon l'invention.
  • La figure 8 illustre une autre vue en coupe d'un mode de réalisation d'un mouvement selon l'invention, le premier pignon oscillant étant en contact avec la roue de compteur d'un temps déterminé et le deuxième pignon oscillant étant en contact avec la roue des secondes chronographe.
  • La figure 9 illustre une vue en coupe du mode de réalisation de la figure 8, le premier pignon oscillant n'étant pas en contact avec la roue de compteur d'un temps déterminé et le deuxième pignon oscillant n'étant pas en contact avec la roue des secondes chronographe.
Examples of implementation of the invention are indicated in the description illustrated by the appended figures in which:
  • The figure 1 illustrates a sectional view of an embodiment of the mechanism according to the invention.
  • The figure 2 illustrates a perspective view of an embodiment of the oscillating pinion of the mechanism according to the invention.
  • The figure 3 illustrates a front view of an embodiment of a chronograph watch according to the invention.
  • The figure 4 illustrates a perspective view of an embodiment of a movement according to the invention.
  • The figure 5 illustrates a top view of the embodiment of movement of the figure 4 .
  • The figure 6 illustrates the top view of the figure 5 , without the chronograph seconds wheel.
  • The figure 7 illustrates a sectional view of an embodiment of a movement according to the invention.
  • The figure 8 illustrates another sectional view of an embodiment of a movement according to the invention, the first oscillating pinion being in contact with the counter wheel of a determined time and the second oscillating pinion being in contact with the chronograph seconds wheel.
  • The figure 9 illustrates a sectional view of the embodiment of the figure 8 , the first oscillating pinion not being in contact with the counter wheel for a determined time and the second oscillating pinion not being in contact with the chronograph seconds wheel.

Exemple(s) de mode(s) de réalisation de l'inventionExample (s) of embodiment (s) of the invention

La figure 1 illustre une vue en coupe d'un mode de réalisation du mécanisme selon l'invention qui comprend :

  • une roue de compteur d'un temps déterminé 2, cette roue de compteur d'un temps prédéterminé 2 étant différente de la roue des secondes chronographe, et
  • un pignon oscillant 10, permettant l'embrayage entre une source d'énergie 1 et la roue de compteur d'un temps déterminé 2.
The figure 1 illustrates a sectional view of an embodiment of the mechanism according to the invention which comprises:
  • a counter wheel with a determined time 2, this counter wheel with a predetermined time 2 being different from the chronograph seconds wheel, and
  • an oscillating pinion 10, allowing the clutch between an energy source 1 and the counter wheel for a determined time 2.

Dans la suite, on fera référence à une roue des minutes chronographe en tant que roue de compteur d'un temps déterminé.In the following, reference will be made to a chronograph minute wheel as a counter wheel for a determined time.

Le pignon oscillant 10, visible en perspective sur la figure 2, comprend un axe du pignon oscillant 100 comprenant deux extrémités ou pivots 1100 et 1200, qui permettent la coopération du pignon oscillant 10 avec une platine respectivement une bascule 210. Notamment, le pignon oscillant 10 pivote entre une platine et une bascule 210 (voir par exemple la figure 4). Dans la variante illustrée, ces deux extrémités 1100 et 1200 ont une section plus petite que celle de l'axe 100.The oscillating pinion 10, visible in perspective on the figure 2 , comprises an axis of the oscillating pinion 100 comprising two ends or pivots 1100 and 1200, which allow the cooperation of the oscillating pinion 10 with a plate, respectively a latch 210. In particular, the oscillating pinion 10 pivots between a plate and a latch 210 (see par. example the figure 4 ). In the variant illustrated, these two ends 1100 and 1200 have a section smaller than that of the axis 100.

En correspondance de la première extrémité 1100 (celle du bas sur la figure 1, par exemple côté cadran), le pignon oscillant 10 comprend une première denture 110. Une source d'énergie 1 engrène avec la denture inférieure 110 du pignon oscillant 10. Dans une variante préférentielle, le contact entre la source d'énergie 1 et la denture inférieure 110 se fait en continu et de façon permanente. Le pignon oscillant 10 est ainsi mis en rotation autour de l'axe principal de son axe 100.Corresponding to the first end 1100 (the lower end on the figure 1 , for example on the dial side), the oscillating pinion 10 comprises a first toothing 110. An energy source 1 meshes with the lower toothing 110 of the oscillating pinion 10. In a preferred variant, the contact between the energy source 1 and the lower toothing 110 is made continuously and permanently. The oscillating pinion 10 is thus rotated around the main axis of its axis 100.

Dans une variante (non illustrée) le pignon oscillant 10 peut comprendre plus que deux dentures sur son axe. Dans cette variante il est ainsi possible de réaliser un double embrayage avec un seul pignon oscillant.In a variant (not illustrated), the oscillating pinion 10 can comprise more than two teeth on its axis. In this variant, it is thus possible to produce a double clutch with a single oscillating pinion.

Dans le contexte de la présente invention, l'expression « source d'énergie » indique un barillet ou bien un mobile intermédiaire lié, par exemple directement lié au barillet.In the context of the present invention, the expression “energy source” indicates a barrel or else a linked intermediate mobile, for example directly linked to the barrel.

Par exemple, comme il est visible sur la figure 4, la source d'énergie est un mobile intermédiaire 1 directement lié au barillet 1'. Dans une autre variante, la source d'énergie qui engrène avec la denture inférieure 110 du pignon oscillant 10 est le barillet 1' lui-même.For example, as it is visible on the figure 4 , the energy source is an intermediate mobile 1 directly linked to the barrel 1 '. In another variant, the energy source which meshes with the lower teeth 110 of the oscillating pinion 10 is the barrel 1 'itself.

Une « source d'énergie » dans ce contexte indique donc un mobile qui peut fournir à un autre mobile une énergie bien plus grande que celle que la roue des secondes chronographe pourrait lui fournir.A “source of energy” in this context therefore indicates a moving body which can supply another moving body with much greater energy than that which the chronograph seconds wheel could supply it.

En correspondance de la deuxième extrémité 1200 (celle du haut sur la figure 1, par exemple côté pont), le pignon oscillant 10 comprend une deuxième denture ou roulette 120. Cette denture 120 de la figure 1 est en contact avec la roue des minutes chronographe 2.Corresponding to the second end 1200 (the top one on the figure 1 , for example on the bridge side), the oscillating pinion 10 comprises a second toothing or wheel 120. This toothing 120 of the figure 1 is in contact with the chronograph minute wheel 2.

Sur la figure 2, le nombre de dents de la première denture 110 est différent de celui de la deuxième denture 120. Cependant, il est possible de prévoir également un pignon oscillant dans lequel le nombre de dents de la première denture 110 est égal à celui de la deuxième denture 120.On the figure 2 , the number of teeth of the first toothing 110 is different from that of the second toothing 120. However, it is possible to also provide an oscillating pinion in which the number of teeth of the first toothing 110 is equal to that of the second toothing 120.

Le pignon oscillant 10 coopère également en correspondance de la deuxième extrémité 120 de l'axe 100 avec un dispositif d'actionnement du pignon oscillant 210, par exemple une bascule, qui est commandée par un dispositif de commande, à came ou à roue à colonne, non illustré sur cette figure.The oscillating pinion 10 also cooperates in correspondence of the second end 120 of the axis 100 with an actuating device of the oscillating pinion 210, for example a rocker, which is controlled by a control device, cam or column wheel. , not shown in this figure.

Un dispositif de commande 8 est par exemple visible sur les figures 4 à 6.A control device 8 is for example visible on the figures 4 to 6 .

Sous l'action de ce dispositif de commande 8, et par l'intermédiaire de la bascule 210, la deuxième extrémité 1200 de l'axe 100 du pignon oscillant 10 se déplace, notamment oscille ou bascule de façon à ce que la denture supérieure 120 entre en contact avec la roue des minutes chronographe 2. Lors du déplacement de la deuxième extrémité 1200 de l'axe 100 du pignon oscillant 10, la première extrémité 1100 garde sensiblement sa position, en assurant ainsi le maintien du contact entre la source d'énergie 1 et la denture inférieure 110 du pignon oscillant 10, et donc la rotation du pignon oscillant 10. En d'autres mots, sous l'action du dispositif de commande et grâce à la bascule 210, le pignon oscillant 10 pivote autour de l'extrémité 1100, de façon à ce que la denture supérieure 120 vienne en contact ou engrène avec la roue des minutes chronographe 2.Under the action of this control device 8, and by means of the rocker 210, the second end 1200 of the axis 100 of the oscillating pinion 10 moves, in particular oscillates or tilts so that the upper toothing 120 comes into contact with the chronograph minute wheel 2. When moving the second end 1200 of the axis 100 of the oscillating pinion 10, the first end 1100 substantially maintains its position, thus ensuring that contact is maintained between the source of energy 1 and the lower teeth 110 of the oscillating pinion 10, and therefore the rotation of the oscillating pinion 10. In other words, under the action of the control device and thanks to the rocker 210, the oscillating pinion 10 pivots around the 'end 1100, so that the upper toothing 120 comes into contact with or meshes with the chronograph minute wheel 2.

Lorsque la denture supérieure 120 entre en contact avec la roue des minutes chronographe 2, l'énergie de rotation du pignon oscillant 10 est transférée à la roue des minutes chronographe 2, qui commence donc à tourner. En d'autres mots, comme le pignon oscillant 10, et donc sa denture supérieure 120, est en rotation, un mouvement de rotation est transmis à la roue des minutes chronographe 2 suite à ce contact. De cette façon, un embrayage à pignon oscillant entre la roue des minutes chronographe 2 et la source d'énergie 1 est réalisé.When the upper toothing 120 comes into contact with the chronograph minute wheel 2, the rotational energy of the oscillating pinion 10 is transferred to the chronograph minute wheel 2, which therefore begins to rotate. In other words, as the oscillating pinion 10, and therefore its upper toothing 120, is rotating, a rotational movement is transmitted to the chronograph minute wheel 2 following this contact. In this way, a pinion clutch oscillating between the chronograph minute wheel 2 and the power source 1 is produced.

La bascule 210 présente généralement deux états :

  • premier état : elle permet un engrènement entre la deuxième denture 120 et la roue des minutes chronographe 2;
  • deuxième état : elle ne permet pas d'engrènement entre la deuxième denture 120 et la roue des minutes chronographe 2.
Flip-flop 210 generally has two states:
  • first state: it allows meshing between the second toothing 120 and the chronograph minute wheel 2;
  • second state: it does not allow meshing between the second toothing 120 and the chronograph minute wheel 2.

Le dispositif d'embrayage à pignon oscillant illustré a l'avantage de réduire de manière significative le saut de départ (recule ou avance de pas) de la roue des minutes chronographe 2 lors de l'enclenchement du chronographe.The illustrated oscillating pinion clutch device has the advantage of significantly reducing the starting jump (backward or forward) of the chronograph minute wheel 2 when the chronograph is engaged.

Comme le pignon oscillant 10 permet un embrayage à pignon oscillant entre la source d'énergie 1 et la roue des minutes chronographe 2, l'énergie pour entraîner la roue des minutes chronographe 2 est prise sur une source d'énergie 1 qui a plus d'énergie par rapport à la roue des secondes chronographe 3, qui est visible par exemple sur la figure 4. Par conséquent, les perturbations sur cette source d'énergie 1 n'auront aucune incidence sur la roue des minutes chronographe 2, ou bien auront une incidence bien inférieure à celle des mécanismes connus.Since the oscillating pinion 10 enables an oscillating pinion clutch between the power source 1 and the chronograph minute wheel 2, the energy to drive the chronograph minute wheel 2 is taken from a power source 1 which has more than 'energy in relation to the chronograph seconds wheel 3, which is visible for example on the figure 4 . Consequently, the disturbances on this energy source 1 will have no effect on the chronograph minute wheel 2, or else will have an effect much less than that of known mechanisms.

Le mouvement de la roue des minutes chronographe 2 est donc complétement désolidarisé de celui de la roue des secondes chronographe 3. Ceci est rendu possible à l'aide d'une disposition conforme à l'invention du pignon oscillant 10.The movement of the chronograph minute wheel 2 is therefore completely separate from that of the chronograph seconds wheel 3. This is made possible by means of an arrangement in accordance with the invention of the oscillating pinion 10.

Selon l'invention, la roue des minutes chronographe 2 est ainsi entrainée uniquement par la source d'énergie via le pignon oscillant 10, de façon à ce que la rotation de la roue des secondes chronographe 3 ne soit pas perturbée par la rotation de la roue des minutes chronographe 2.According to the invention, the chronograph minute wheel 2 is thus driven solely by the energy source via the oscillating pinion 10, so that the rotation of the chronograph seconds wheel 3 is not disturbed by the rotation of the chronograph minute wheel 2.

En d'autres mots, le mécanisme selon l'invention permet de dissocier la fonction (donc le mouvement) de la roue des secondes chronographe 3 de la fonction (donc du mouvement) des minutes chronographe 2, dans le but de ne pas perturber la marche du mouvement de base lorsque le chronographe est enclenché. Cette désolidarisation permet également une simplification de la mise au point et du fonctionnement de la roue des minutes chronographe 2, car elle n'est plus entraînée par la roue des secondes chronographes 3. La simplification est également obtenue par la présence du pignon oscillant 10, qui permet une amélioration de l'engrènement par rapport à un système traditionnel..In other words, the mechanism according to the invention makes it possible to dissociate the function (and therefore the movement) of the chronograph seconds wheel 3 from the function (therefore of the movement) of the chronograph 2 minutes, in order not to disturb the operation of the basic movement when the chronograph is engaged. This separation also allows a simplification of the development and the operation of the chronograph minute wheel 2, because it is no longer driven by the chronograph seconds wheel 3. The simplification is also obtained by the presence of the oscillating pinion 10, which allows an improvement in the meshing with respect to a system traditional..

Cette désolidarisation ainsi que la présence du pignon oscillant 10 permettent également un agencement peu encombrant tout en permettant de réduire de manière significative le saut de départ à la roue des minutes chronographe 2.This separation and the presence of the oscillating pinion 10 also allow a space-saving arrangement while making it possible to significantly reduce the starting jump at the chronograph minute wheel 2.

Dans la variante illustrée sur les figures 4 à 9, la roue de compteur d'un temps prédéterminé est une roue des minutes chronographe 2. Autrement dit, dans cette variante préférentielle, la roue de compteur d'un temps prédéterminé est une roue de compteur N minutes, N étant un nombre entier positif (N = 15, 30, 45, 60, etc.). Elle permet d'entraîner un indicateur des minutes chronographe (par exemple l'indicateur MC visible sur la figure 3) qui fait un tour complet d'un cadran C1 lorsque le temps chronométré atteint N minutes.In the variant illustrated on figures 4 to 9 , the counter wheel of a predetermined time is a chronograph minute wheel 2. In other words, in this preferred variant, the counter wheel of a predetermined time is an N minutes counter wheel, N being a positive integer ( N = 15, 30, 45, 60, etc.). It is used to train a chronograph minutes indicator (for example the MC indicator visible on the figure 3 ) which makes a complete revolution of a C1 dial when the measured time reaches N minutes.

Dans une autre variante, cette roue de compteur d'un temps prédéterminé est une roue des heures chronographe. Autrement dit, dans cette variante, la roue de compteur d'un temps prédéterminé est une roue de compteur M heures, M étant un nombre entier positif. Elle permet d'entraîner un indicateur des heures chronographe (par exemple l'indicateur HC visible sur la figure 3) qui fait un tour complet d'un cadran C2 lorsque le temps chronométré atteint M heures.In another variant, this counter wheel with a predetermined time is a chronograph hour wheel. In other words, in this variant, the counter wheel of a predetermined time is an M hour counter wheel, M being a positive integer. It is used to train a chronograph hour indicator (for example the HC indicator visible on the figure 3 ) which makes a complete revolution of a C2 dial when the measured time reaches M hours.

Le mécanisme selon l'invention offre un grand nombre de possibilités pour les compteurs N minutes et/ou M heures, car N et M peuvent être choisis en fonction des rapports d'engrenages entre la source d'énergie 1 ou 1' et la roue de compteur d'un temps déterminé, du nombre des dents de la source d'énergie et/ou de la roue de compteur d'un temps déterminé, et/ou en fonction de leur entraxes.The mechanism according to the invention offers a large number of possibilities for N minutes and / or M hours counters, because N and M can be chosen according to the gear ratios between the energy source 1 or 1 'and the wheel. counter of a determined time, of the number of teeth of the energy source and / or of the counter wheel of a determined time, and / or as a function of their centers.

Dans les variantes des figures 4 à 9, le mécanisme 1000 selon l'invention comprend également :

  • une roue des secondes mouvement 4,
  • une roue des secondes chronographe 3,
  • un deuxième pignon oscillant 20.
In the variants of figures 4 to 9 , the mechanism 1000 according to the invention also comprises:
  • a second movement wheel 4,
  • a chronograph seconds wheel 3,
  • a second oscillating pinion 20.

Ce deuxième pignon oscillant 20 comprend :

  • une première denture arrangée pour engrener avec la roue des secondes mouvement 4 ;
  • une deuxième denture arrangée pour se déplacer sous l'action d'un deuxième dispositif d'actionnement 220, de façon à engrener avec la roue des secondes chronographe 3, en réalisant ainsi un embrayage à pignon oscillant entre la roue des secondes mouvement 4 et la roue des secondes chronographe 3.
This second oscillating pinion 20 comprises:
  • a first toothing arranged to mesh with the wheel of the second movement 4;
  • a second toothing arranged to move under the action of a second actuating device 220, so as to mesh with the chronograph seconds wheel 3, thus providing a pinion clutch oscillating between the second movement wheel 4 and the chronograph seconds wheel 3.

Dans une autre variante, non illustrée, le même dispositif d'actionnement 210 qui actionne le premier pignon oscillant peut actionner le deuxième pignon oscillant 20 ou vice versa.In another variant, not illustrated, the same actuator 210 which actuates the first oscillating pinion can actuate the second oscillating pinion 20 or vice versa.

Dans une variante préférentielle (non illustrée), le mécanisme selon l'invention comprend une deuxième roue de compteur d'un temps déterminé. Par exemple, si la première roue de compteur d'un temps déterminé est une roue des minutes chronographe, la deuxième roue peut être une roue des heures chronographe.In a preferred variant (not illustrated), the mechanism according to the invention comprises a second counter wheel with a determined time. For example, if the first counter wheel of a determined time is a chronograph minute wheel, the second wheel may be a chronograph hour wheel.

Dans cette variante préférentielle, le mécanisme comprend un troisième pignon oscillant réalisant un embrayage à pignon oscillant entre la source d'énergie (ou une autre source d'énergie) et la deuxième roue de compteur d'un temps déterminé.In this preferred variant, the mechanism comprises a third oscillating pinion producing a pinion clutch oscillating between the energy source (or another energy source) and the second counter wheel for a determined time.

Par exemple la source d'énergie est un mobile intermédiaire 1 directement en contact avec un barillet 1', qui peut engrener d'une part avec la deuxième denture du premier pignon oscillant 10 et de l'autre part avec la deuxième denture du troisième pignon oscillant, permettant ainsi de faire tourner par exemple une roue des minutes chronographe 2 (coopérant avec le premier pignon oscillant 10) et une roue des heures chronographe (coopérant avec le troisième pignon oscillant).For example, the energy source is an intermediate mobile 1 directly in contact with a barrel 1 ', which can mesh on the one hand with the second toothing of the first oscillating pinion 10 and on the other hand with the second toothing of the third pinion. oscillating, thus allowing to rotate for example a chronograph minute wheel 2 (cooperating with the first oscillating pinion 10) and a chronograph hour wheel (cooperating with the third oscillating pinion).

Dans un autre exemple, la source d'énergie coopérant avec le premier pignon oscillant est différente de celle coopérant avec le troisième pignon oscillant. Par exemple la source d'énergie coopérant avec le premier pignon oscillant est un premier mobile intermédiaire 1 en contact avec une première denture d'un barillet à double denture, et la source d'énergie coopérant avec le troisième pignon oscillant est un deuxième mobile intermédiaire en contact avec une deuxième denture du barillet à double denture.In another example, the energy source cooperating with the first oscillating pinion is different from that cooperating with the third oscillating pinion. For example, the energy source cooperating with the first oscillating pinion is a first intermediate mobile 1 in contact with a first toothing of a double toothed barrel, and the energy source cooperating with the third oscillating pinion is a second intermediate mobile in contact with a second toothing of the double toothed barrel.

Dans une variante, ce troisième pignon oscillant est actionné par le premier dispositif d'actionnement (par exemple une bascule qui peut actionner soit le premier pignon oscillant seulement, soit à la fois le premier et le deuxième pignon oscillant).In a variant, this third oscillating pinion is actuated by the first actuator (for example a rocker which can actuate either the first oscillating pinion only, or both the first and the second oscillating pinion).

Dans une autre variante, ce troisième pignon oscillant est actionné par le deuxième dispositif d'actionnement qui actionne aussi le deuxième pignon oscillant.In another variant, this third oscillating pinion is actuated by the second actuating device which also actuates the second oscillating pinion.

Dans encore une autre variante, ce troisième pignon oscillant est actionné par un troisième dispositif d'actionnement qui n'actionne aucun autre pignon oscillant.In yet another variant, this third oscillating pinion is actuated by a third actuator which does not actuate any other oscillating pinion.

Dans tous le cas, le troisième pignon oscillant comprend une première denture arrangée pour engrener avec une source d'énergie du mouvement et une deuxième denture arrangée pour se déplacer sous l'action d'un dispositif d'actionnement (le premier, le deuxième ou un troisième dispositif d'actionnement), de façon à engrener avec cette autre roue de compteur d'un temps déterminé, en réalisant ainsi un embrayage à pignon oscillant entre la source d'énergie et la deuxième roue de compteur d'un temps déterminé.In all cases, the third oscillating pinion comprises a first toothing arranged to mesh with a source of energy of the movement and a second toothing arranged to move under the action of an actuating device (the first, the second or a third actuating device), so as to mesh with this other counter wheel for a determined time, thus producing a pinion clutch oscillating between the energy source and the second counter wheel for a determined time.

L'homme du métier comprendra également qu'il est possible de continuer à ajouter une quatrième, cinquième, sixième, etc. roue de compteur d'un temps déterminé, chaque nouvelle roue étant associée à un nouveau pignon oscillant, actionné par un nouveau dispositif d'actionnement ou par un dispositif d'actionnement qui actionne déjà un autre pignon oscillant, et réalisant un embrayage à pignon oscillant entre cette roue et une nouvelle source d'énergie du mouvement (par exemple un autre mobile intermédiaire directement lié au barillet qui coopère seulement avec le nouveau pignon oscillant) ou bien par une source d'énergie du mouvement coopérant déjà avec un autre pignon oscillant.Those skilled in the art will also understand that it is possible to continue to add a fourth, fifth, sixth, etc. counter wheel of a determined time, each new wheel being associated with a new oscillating pinion, actuated by a new actuating device or by an actuating device which already actuates another oscillating pinion, and providing an oscillating pinion clutch between this wheel and a new source of energy for the movement (for example another intermediate moving body directly linked to the barrel which only cooperates with the new oscillating pinion) or else by a source of energy for the movement already cooperating with another oscillating pinion.

Dans une autre variante, la roue des heures chronographe n'est pas entraînée à l'aide d'un pignon oscillant par une source d'énergie, mais elle est en prise direct avec la source d'énergie (par exemple le barillet) et gardée freinée en permanence si elle ne doit pas se déplacer pour permettre l'affichage d'une heure mesurée.In another variant, the chronograph hour wheel is not driven by means of an oscillating pinion by an energy source, but it is in direct engagement with the energy source (for example the barrel) and kept braked permanently if it does not have to move to allow the display of a measured time.

Dans une variante préférentielle, le nombre de dents de la deuxième denture du premier pignon oscillant 10 est égal au nombre de dents de la deuxième denture du deuxième pignon oscillant 20 et/ou du troisième pignon oscillant (et/ou de tout autre pignon oscillant), ce qui simplifie davantage le réglage du mécanisme selon l'invention.In a preferred variant, the number of teeth of the second toothing of the first oscillating pinion 10 is equal to the number of teeth of the second toothing of the second oscillating pinion 20 and / or of the third oscillating pinion (and / or of any other oscillating pinion) , which further simplifies the adjustment of the mechanism according to the invention.

Comme visible par exemple sur la figure 4, la roue des secondes chronographe 3 et la roue des minutes chronographe 2 sont associées au cœur 33 respectivement 22. Chaque cœur est associé à un indicateur, par exemple une aiguille, qu'il permet de commander et d'orienter afin d'afficher les indications correspondantes. Par exemple, l'axe d'une aiguille peut être monté directement sur l'axe du cœur correspondant, un lié à cet axe du cœur au moyen d'une chaîne d'engrenages aussi courte que possible, par exemple une roue et un pignon.As visible for example on the figure 4 , the chronograph seconds wheel 3 and the chronograph minutes wheel 2 are associated with the heart 33 respectively 22. Each heart is associated with an indicator, for example a hand, which it makes it possible to control and orient in order to display the corresponding indications. For example, the axis of a needle can be mounted directly on the corresponding axis of the heart, one linked to this axis of the heart by means of a chain of gears as short as possible, for example a wheel and a pinion .

Ainsi, le cœur 22 est associé à l'indicateur des minutes chronographe MC, visible sur la figure 3, où il est placé à trois heures. Le cœur 33 est associé à l'indicateur des secondes chronographe SC, visible sur la figure 3, où il est placé au centre. Un autre cœur non représenté est associé à l'indicateur des heures chronographe HC, visible sur la figure 3, où il est placé à neuf heures. Bien évidemment, la position des indicateurs sur la montre 2000 de la figure 3 est non-limitative et toute autre position peut être envisagée.Thus, the heart 22 is associated with the chronograph minutes indicator MC, visible on the figure 3 , where it is placed at three o'clock. The heart 33 is associated with the chronograph seconds indicator SC, visible on the figure 3 , where it is placed in the center. Another heart, not shown, is associated with the HC chronograph hour indicator, visible on the figure 3 , where it is placed at nine o'clock. Obviously, the position of the indicators on the 2000 watch of the figure 3 is non-limiting and any other position can be considered.

Dans une variante, les indicateurs du temps chronographe (SC, MC et/ou HC) se déplacent de façon continue, c'est-à-dire sans sauts ou « traînant ». Dans une autre variante, le mécanisme pourrait être agencé de façon à ce qu'ils se déplacent « pas à pas ».In a variant, the chronograph time indicators (SC, MC and / or HC) move continuously, that is to say without jumps or “dragging”. In another variant, the mechanism could be arranged so that they move “step by step”.

La figure 8 illustre une vue en coupe d'un mode de réalisation d'un mouvement selon l'invention, dans lequel un poussoir (ou un autre dispositif de commande) « START » (non visible) de la montre chronographe a été enclenché : en effet, non seulement le deuxième pignon oscillant 20 est en contact avec la roue des secondes chronographe 3 (référence T2 sur la figure 8), mais également le premier pignon oscillant 10 est en contact avec la roue des minutes chronographe 2 (référence T1 sur la figure 8). Dans cette variante, les pignons oscillants 10, 20 sont sensiblement perpendiculaires aux faces des roues illustrées lorsque ils entrent en contact avec la roue des secondes chronographe 3 respectivement avec la roue des minutes chronographe 2.The figure 8 illustrates a sectional view of an embodiment of a movement according to the invention, in which a “START” push-button (or other control device) (not visible) of the chronograph watch has been engaged: indeed, not only is the second oscillating pinion 20 in contact with the chronograph seconds wheel 3 (reference T 2 on the figure 8 ), but also the first oscillating pinion 10 is in contact with the chronograph minute wheel 2 (reference T 1 on the figure 8 ). In this variant, the oscillating pinions 10, 20 are substantially perpendicular to the faces of the wheels illustrated when they come into contact with the chronograph seconds wheel 3 respectively with the chronograph minutes wheel 2.

La figure 9 illustre la vue en coupe du mode de réalisation de la figure 8, lorsque le poussoir (ou un autre dispositif de commande) « STOP » (non visible) est sélectionné. En effet, le deuxième pignon oscillant 20 n'est plus en contact avec la roue des secondes chronographe 3 (référence E2 sur la figure 9, indiquant l'espace entre le deuxième pignon oscillant 20 et la roue des secondes chronographe 3), et également le premier pignon oscillant 10 n'est plus en contact avec la roue des minutes chronographe 2 (référence E1 sur la figure 9 indiquant l'espace entre le premier pignon oscillant 10 et la roue des minutes chronographe 2). Dans cette variante, les pignons oscillants 10, 20 sont inclinés aux faces des roues illustrées.The figure 9 illustrates the sectional view of the embodiment of the figure 8 , when the button (or another control device) "STOP" (not visible) is selected. Indeed, the second oscillating pinion 20 is no longer in contact with the chronograph seconds wheel 3 (reference E 2 on the figure 9 , indicating the space between the second oscillating pinion 20 and the chronograph seconds wheel 3), and also the first oscillating pinion 10 is no longer in contact with the chronograph minute wheel 2 (reference E 1 on the figure 9 indicating the space between the first oscillating pinion 10 and the chronograph minute wheel 2). In this variant, the oscillating gears 10, 20 are inclined to the faces of the illustrated wheels.

Selon un aspect indépendant de l'invention, la roue de compteur d'un temps déterminé, la roue des secondes chronographe, le dispositif d'actionnement et le pignon oscillant du mécanisme selon l'invention forment un module ou kit qui peut être intégré dans un mouvement de montre déjà existant. Par exemple, ce module peut être vendu séparément du mouvement de montre dans lequel il peut être intégré. Dans une variante préférentielle, ce module est intégré dans le côté pont (c'est-à-dire le côté opposé au cadran) d'un mouvement de montre existant.According to an independent aspect of the invention, the counter wheel of a determined time, the chronograph seconds wheel, the actuating device and the oscillating pinion of the mechanism according to the invention form a module or kit which can be integrated into an already existing watch movement. For example, this module can be sold separately from the watch movement in which it can be integrated. In a preferred variant, this module is integrated into the bridge side (that is to say the side opposite the dial) of an existing watch movement.

Numéros de référence employés sur les figuresReference numbers used in figures

11
Mobile intermédiaireIntermediate mobile
1'1 '
BarilletBarrel
22
Roue des minutes chronographeChronograph minute wheel
33
Roues des secondes chronographeChronograph seconds wheels
44
Roues des secondesSeconds wheels
66
Roue d'échappementExhaust wheel
77
Organe réglantRegulating organ
88
Roue à colonneColumn wheel
99
Train de rouageCog train
1010
Premier pignon oscillantFirst oscillating pinion
2020
Deuxième pignon oscillantSecond oscillating pinion
2222
CœurHeart
3333
CœurHeart
100100
Axe du premier pignon oscillantAxis of the first oscillating pinion
110110
Première denture du premier pignon oscillantFirst toothing of the first oscillating pinion
120120
Deuxième denture du premier pignon oscillantSecond teeth of the first oscillating pinion
210210
Premier dispositif d'actionnementFirst actuator
220220
Deuxième dispositif d'actionnementSecond actuator
10001000
MouvementMovement
11001100
Première extrémité de l'axe 100First end of axis 100
12001200
Deuxième extrémité de l'axe 100Second end of axis 100
20002000
Montre chronographeChronograph watch
HH
Indicateur des heuresHour indicator
MM
Indicateur des minutesMinute indicator
SCSC
Indicateur des secondes chronographeChronograph seconds indicator
MCMC
Indicateur des minutes chronographeChronograph minute indicator
HCHC
Indicateur des heure chronographeChronograph hour indicator
C1C1
Premier cadranFirst dial
C2C2
Deuxième cadranSecond dial
E1 E 1
EspaceSpace
E2 E 2
EspaceSpace
T1 T 1
ContactContact
T2 T 2
ContactContact

Claims (11)

  1. Mechanism for a chronograph watch movement comprising:
    - an energy source (1, 1'),
    - a chronograph seconds wheel (3),
    - a counter wheel for counting a given time (2), said wheel being different from the chronograph seconds wheel (3),
    - a device for actuating an oscillating pinion (10),
    - said oscillating pinion (10) comprising:
    - a first toothing (110) arranged to mesh with said energy source (1, 1') of the movement,
    - a second toothing (120) arranged to move under the action of said actuating device (210, 220), so as to mesh with the counter wheel for counting a given time (2), thereby producing an oscillating pinion gear between the energy source (1, 1') and the counter wheel for counting a given time (2), said counter wheel for counting a given time (2) thus being driven solely by the energy source (1, 1') via said oscillating pinion (10), so that the rotation of the chronograph seconds wheel (3) is decoupled from the rotation of the counter wheel for counting a given time (2),
    characterized in that
    the counter wheel for counting a given time (2) is a chronograph minutes wheel.
  2. Mechanism according to claim 1, said oscillating pinion being a first oscillating pinion, said actuating device being a first actuating device, said mechanism comprising:
    - a seconds motion wheel (4),
    - a second actuating device (220),
    - a second oscillating pinion (20) comprising:
    - a first toothing arranged to mesh with the seconds motion wheel (4),
    - a second toothing arranged to move under the action of the first actuating device (210) or of said second actuating device (220) so as to mesh with the chronograph seconds wheel (3), thereby producing an oscillating pinion gear between the movement seconds wheel (4) and the chronograph seconds wheel (3).
  3. Mechanism according to one of claims 1 to 2, said counter wheel for counting a given time being a first counter wheel for counting a given time and said energy source being a first energy source (1), said mechanism comprising:
    - a third actuating device,
    - a second counter wheel for counting a given time,
    - a third oscillating pinion comprising:
    - a first toothing arranged to mesh with said first motion energy source (1) or with a second motion energy source (1'),
    - a second toothing arranged to move under the action of said first actuating device or of said third actuating device so as to mesh with said second counter wheel for counting a given time, thereby providing an oscillating pinion gear between the first or second energy source and the second counter wheel for counting a given time.
  4. Mechanism according to claim 3, the first counter wheel for counting a given time being a chronograph minutes wheel (2) and the second counting wheel of a predetermined time being a chronograph hours wheel.
  5. Mechanism according to one of claims 1 to 4, the number of teeth of the second toothing of the first oscillating pinion (10) being equal to the number of teeth of the second toothing of the second oscillating pinion (20) and/or the number of teeth of the second toothing of the third oscillating pinion.
  6. Mechanism according to one of claims 1 to 5, wherein the first actuating device (210) and/or the second actuating device (220) is a lever.
  7. Mechanism according to one of claims 1 to 6, comprising a control device (8) actuating the first and/or the second actuating device, said control device (8) being for example a cam and/or column wheel control device.
  8. Mechanism according to one of claims 1 to 7, said energy source being a barrel (1') or an intermediate mobile (1) which meshes with said barrel (1').
  9. Mechanism according to any one of claims 1 to 8, said oscillating pinion (10) comprising more than two toothings.
  10. Chronograph watch movement comprising the mechanism according to any of claims 1 to 9.
  11. Chronograph watch comprising the movement according to claim 10.
EP18202209.5A 2017-12-05 2018-10-24 Mechanism for stop-watch movement Active EP3495898B2 (en)

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CH01481/17A CH714406A1 (en) 2017-12-05 2017-12-05 Mechanism for chronograph watch movement.

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EP4202577A1 (en) * 2021-12-21 2023-06-28 Manufacture d'Horlogerie Audemars Piguet SA Lever device for a timepiece movement

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BERNARD HUMBERT: "LE CHRONOGRAPHE, SON FONCTIONNEMENT, SA RÉPARATION", 27 March 2013, ISBN: 978-2970057383, article "9 Les compteurs d'heures", pages: 83 - 85, XP055821144
JEAN-PHILIPPE ARM: "Chronographes: le grand écart", WATCH AROUND, 2013, pages 56 - 64, XP055821156
JOËL PYNSON: "LE CHRONOGRAPHE DE POCHE SUISSE", 1 January 2015, ISBN: 2883800367, pages: 22, 32, 39, 75, 98, 107, XP055821134

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EP3495898A1 (en) 2019-06-12
EP3495898B2 (en) 2023-11-15
CH714406A1 (en) 2019-06-14

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