EP3495898B1 - Mechanismus für uhrwerk eines chronographs - Google Patents

Mechanismus für uhrwerk eines chronographs 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
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English (en)
French (fr)
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EP3495898A1 (de
EP3495898B2 (de
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
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Guenat SA Montres Valgine
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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)

Claims (11)

  1. Mechanismus für das Uhrwerk eines Chronographen, welcher umfasst:
    - eine Energiequelle (1, 1'),
    - ein Chronographen-Sekundenrad (3),
    - ein Zählerrad für eine bestimmte Zeit (2), wobei dieses Rad von dem Chronographen-Sekundenrad (3) verschieden ist,
    - eine Vorrichtung zur Betätigung eines Schwingtriebes (10),
    - wobei das Schwingtrieb (10) umfasst:
    - eine erste Verzahnung (110), die dafür ausgelegt ist, mit der Energiequelle (1, 1') des Uhrwerks zu kämmen,
    - eine zweite Verzahnung (120), die dafür ausgelegt ist, sich unter der Wirkung der Betätigungsvorrichtung (210, 220) zu verlagern, um mit dem Zählerrad für eine bestimmte Zeit (2) zu kämmen, wobei auf diese Weise eine Schwingtriebkupplung zwischen der Energiequelle (1, 1') und dem Zählerrad für eine bestimmte Zeit (2) realisiert wird, wobei das Zählerrad für eine bestimmte Zeit (2) somit ausschließlich von der Energiequelle (1, 1') über das Schwingtrieb (10) angetrieben wird, derart, dass die Drehung des Chronographen-Sekundenrades (3) von der Drehung des Zählerrades für eine bestimmte Zeit (2) entkoppelt ist,
    dadurch gekennzeichnet, dass das Zählerrad für eine bestimmte Zeit (2) ein Chronographen-Minutenrad ist.
  2. Mechanismus nach Anspruch 1, wobei das Schwingtrieb ein erstes Schwingtrieb ist, die Betätigungsvorrichtung eine erste Betätigungsvorrichtung ist und der Mechanismus umfasst:
    - ein Uhrwerk-Sekundenrad (4),
    - eine zweite Betätigungsvorrichtung (220),
    - ein zweites Schwingtrieb (20), welches umfasst:
    - eine erste Verzahnung, die dafür ausgelegt ist, mit dem Uhrwerk-Sekundenrad (4) zu kämmen,
    - eine zweite Verzahnung, die dafür ausgelegt ist, sich unter der Wirkung der ersten Betätigungsvorrichtung (210) oder der zweiten Betätigungsvorrichtung (220) zu verlagern, um mit dem Chronographen-Sekundenrad (3) zu kämmen, wobei auf diese Weise eine Schwingtriebkupplung zwischen dem Uhrwerk-Sekundenrad (4) und dem Chronographen-Sekundenrad (3) realisiert wird.
  3. Mechanismus nach einem der Ansprüche 1 bis 2, wobei das Zählerrad für eine bestimmte Zeit ein erstes Zählerrad für eine bestimmte Zeit ist und die Energiequelle eine erste Energiequelle (1) ist, wobei der Mechanismus umfasst:
    - eine dritte Betätigungsvorrichtung,
    - ein zweites Zählerrad für eine bestimmte Zeit,
    - ein drittes Schwingtrieb, welches umfasst:
    - eine erste Verzahnung, die dafür ausgelegt ist, mit der ersten Energiequelle (1) des Uhrwerks oder mit einer zweiten Energiequelle (1') des Uhrwerks zu kämmen,
    - eine zweite Verzahnung, die dafür ausgelegt ist, sich unter der Wirkung der ersten Betätigungsvorrichtung oder der dritten Betätigungsvorrichtung zu verlagern, um mit dem zweiten Zählerrad für eine bestimmte Zeit zu kämmen, wobei auf diese Weise eine Schwingtriebkupplung zwischen der ersten oder der zweiten Energiequelle und dem zweiten Zählerrad für eine bestimmte Zeit realisiert wird.
  4. Mechanismus nach Anspruch 3, wobei das erste Zählerrad für eine bestimmte Zeit ein Chronographen-Minutenrad (2) und das zweite Zählerrad für eine vorbestimmte Zeit ein Chronographen-Stundenrad ist.
  5. Mechanismus nach einem der Ansprüche 1 bis 4, wobei die Zähnezahl der zweiten Verzahnung des ersten Schwingtriebs (10) gleich der Zähnezahl der zweiten Verzahnung des zweiten Schwingtriebs (20) und/oder der Zähnezahl der zweiten Verzahnung des dritten Schwingtriebs ist.
  6. Mechanismus nach einem der Ansprüche 1 bis 5, wobei die erste Betätigungsvorrichtung (210) und/oder die zweite Betätigungsvorrichtung (220) eine Wippe ist.
  7. Mechanismus nach einem der Ansprüche 1 bis 6, welcher eine Steuervorrichtung (8) umfasst, welche die erste und/oder die zweite Betätigungsvorrichtung betätigt, wobei die Steuervorrichtung (8) zum Beispiel eine Nocken-und/oder Säulenrad-Steuervorrichtung ist.
  8. Mechanismus nach einem der Ansprüche 1 bis 7, wobei die Energiequelle ein Federhaus (1') oder ein Zwischendrehteil (1), der mit dem Federhaus (1), der mit dem Federhaus (1') kämmt, ist.
  9. Mechanismus nach einem der Ansprüche 1 bis 8, wobei das Schwingtrieb (10) mehr als zwei Verzahnungen umfasst.
  10. Uhrwerk eines Chronographen, welches den Mechanismus nach einem der Ansprüche 1 bis 9 umfasst.
  11. Chronograph, welcher das Uhrwerk nach Anspruch 10 umfasst.
EP18202209.5A 2017-12-05 2018-10-24 Mechanismus für uhrwerk eines chronographs Active EP3495898B2 (de)

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CH01481/17A CH714406A1 (fr) 2017-12-05 2017-12-05 Mécanisme pour mouvement de montre chronographe.

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EP4202577A1 (de) * 2021-12-21 2023-06-28 Manufacture d'Horlogerie Audemars Piguet SA Wippevorrichtung eines uhrwerks

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US377896A (en) 1888-02-14 better
CH71222A (fr) 1915-06-02 1915-12-16 John Reymond Mécanisme compteur appliqué à une pièce d'horlogerie à chronographe
EP2073079A2 (de) 2007-12-21 2009-06-24 Franck Müller Watchland SA Chronographmechanismus, Uhrwerk und diesen Mechanismus umfassende Uhr
CH700808B1 (fr) 2005-10-28 2010-10-29 Omega Sa Montre chronographe comprenant au moins cinq cadrans auxiliaires.
EP2821862A2 (de) 2013-07-04 2015-01-07 Manufacture La Joux-Perret SA Uhr

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CH682034B5 (fr) * 1991-10-14 1994-01-14 Eta S.A. Fabriques D'ebauches Pièce d'horlogerie comportant un module de chronographe adapté sur un module moteur.

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US377896A (en) 1888-02-14 better
CH71222A (fr) 1915-06-02 1915-12-16 John Reymond Mécanisme compteur appliqué à une pièce d'horlogerie à chronographe
CH700808B1 (fr) 2005-10-28 2010-10-29 Omega Sa Montre chronographe comprenant au moins cinq cadrans auxiliaires.
EP2073079A2 (de) 2007-12-21 2009-06-24 Franck Müller Watchland SA Chronographmechanismus, Uhrwerk und diesen Mechanismus umfassende Uhr
EP2821862A2 (de) 2013-07-04 2015-01-07 Manufacture La Joux-Perret SA Uhr

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