Classifications

• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
  • G07C1/22—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people in connection with sports or games
  • G07C1/28—Indicating playing time
• • G—PHYSICS
  • G04—HOROLOGY
  • G04F—TIME-INTERVAL MEASURING
  • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
  • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
  • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
  • G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
  • G04F7/0814—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms with double hammer, i.e. one hammer acts on two counters
• • G—PHYSICS
  • G04—HOROLOGY
  • G04F—TIME-INTERVAL MEASURING
  • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
  • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
  • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
  • G04F7/0823—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
  • G04F7/0866—Special arrangements
  • G04F7/0871—Special arrangements with multiple chronograph functions, i.e. to count multiple running times

Definitions

• the present invention relates to chronograph mechanisms, which allow the measurement of a time counted from a given instant, controlled by pressing push-buttons.
• a watch fitted with such a mechanism is, for example, described in the work entitled "Clockwork theory" Chs-A. Reymondin et al. ISBN 2-940025-10- X, page 232 and following.
• These watches generally include two push-pieces intended for one to ensure the start and stop of the counter ensuring the measurement of the timed time, the other for resetting this counter. This time is displayed by means of at least one hand, generally placed in the center of the movement and indicating the time in seconds.
• the aim of the present invention is to propose a chronograph mechanism making it possible to measure the duration of two events taking place according to an alternative process.
• This mechanism is intended to cooperate with a movement comprising: • a frame intended to carry the components of the movement,
• this mechanism is characterized in that:
• the timed time counting means comprise first and second chronograph cogs, each intended to carry a hand, which ensure the display of a first and a second timed time respectively
• the connecting means comprise first and second clutches, intended to connect the finishing train with respectively the first and the second chronograph train,
• the actuating means comprise: a control device arranged so as to engage or trigger one or the other clutch, and
• a switching device arranged in such a way that its activation causes the triggered clutch to be triggered and the triggered clutch to be engaged.
• the actuation means further comprise an initialization device, arranged to control the resetting of the timed time counting means.
• its switching device includes a locking structure arranged so that it can only be actuated when one of the chronograph wheels is engaged.
• the locking means cooperate with the actuation means, so that the initialization means cannot be activated when one of the chronograph wheels is engaged.
• FIG. 1 shows a watch comprising a mechanism according to the invention
• FIG. 2 represents a diagram of the operation of this watch
• Figures 3 to 6 show the mechanism according to the invention, in different positions, corresponding to the main steps encountered during operation.
• FIG. 1 the position of the various components of the watch is sometimes defined with reference to the position occupied by an hour hand on the dial.
• a watch 10 comprising a case 12, a dial 14, a winding and setting crown 16, five hands bearing the references 18 to 23 and three push-buttons, bearing the references 24 to 26.
• the box 12 contains and protects a movement comprising a mechanism allowing the timing of time, as will be explained below. It is closed by a crystal, not visible in the drawing, and which covers the dial 14 and the hands 18 to 23.
• the hands 18 and 19 pivot in the center of the dial 14. They display the hours and minutes of the current time respectively.
• the hands 20 and 21 are arranged concentrically with the hands 18 and 19. They are driven respectively by a first and by a second counter and intended to display the seconds of a first and a second time. stopwatch.
• Hands 22 and 23, which are off-center and associated with a small dial not referenced and placed at three, ensure the display of the minutes of the first and second timed times respectively.
• the hands 20 to 23 therefore take the place of means for displaying timed times.
• the needles 20 and 22 respectively 21 and 23 can be identified in pairs, because of their different shapes or colors.
• Figure 2 shows, schematically, the effect that generates pressure on one or the other of the pushers.
• the inactive pushers in the different states that the mechanism can take have not been taken into account.
• the pusher 24 can be actuated regardless of the state in which the mechanism is located.
• the push-button 25 is only active if one or the other of the counters is in operation, whereas the push-button 26 can only carry out a zeroing when the first counter is stopped and the second counter is stopped or at zero.
• the rectangles in bold line relate to actions PI, P2 and P3, carried out by the user of the watch respectively on the pushers 24, 25 and 26.
• the rectangles in thin line indicate the changes brought about by the action considered on the mechanism.
• Cl and C2 respectively identify the first and second counters, Start, Stop and Reset their start, stop and reset.
• the circles surrounding an uppercase letter define the different states in which the mechanism is located after the action, listed in the table below.
• the watch is in state A when no time is timed, the hands 20, 21 22 and 23 being at zero.
• a pressure PI, on the pusher 24 is active. It causes the start of the first counter and the setting in motion of hands 20 and 22, hands 21 and 23 remaining at zero, which corresponds to state B of the mechanism.
• PI pressure on the pusher 24
• P2 Pressure on push-button 25
• FIGS. 3 to 6 The mechanism ensuring these functions is represented in FIGS. 3 to 6. It is arranged on a plate forming a frame 28, part of the basic movement and able, for example, to further ensure a barrel bridge function. It is on the back side of the watch.
• the constituent parts are in state A as defined with reference to FIG. 2, that is to say in the state where the mechanism is at rest, the hands 20 to 22 being at zero .
• Figure 4 corresponds to state B, Figure 5 to state D, and Figure 6 to state C or D.
• the pushers 24 to 26 are shown schematically by their end arranged inside the box.
• the basic movement has not been shown. It comprises, in a conventional manner, an energy source, a time base, and a gear train ensuring the connection of the energy source to the time base and consequently the counting of current time.
• This train comprises a mobile provided with a shaft passing through the frame 28 and carrying two wheels 301 and 302, the function of which will be specified below.
• Frame 28 carries:
• initialization means 70 the latter being visible, in detail, only in FIG. 6.
• the timed time counting means 40 comprise two wheels 421 and 422, of the same diameter and provided with the same number of teeth, arranged coaxially in the center of the movement, and arranged to carry the hands 20 and 21 respectively. They include, in in addition, two coaxial wheels, which have not been shown in the drawing, arranged to pivot on the frame 28 in a hole 28a, and driven respectively by the wheels 421 and 422, at a rate of one step per minute or by half minute, and arranged so that the needles 22 and 23, which they carry respectively, do one revolution in thirty minutes. These wheels timed time counting means 40 are each provided with a heart, not shown in the drawing, intended to cooperate with the initialization means for setting the needles to zero.
• the connecting means 50 comprise two rockers 521 and 522, pivotally mounted on the frame 28, in their middle part on the same axis, which is outside the frame of the drawing. These rockers 521 and 522 carry, at one of their ends, a wheel mounted idle and identified by the letter a. They are provided, at the other end, with a nose identified by the letter b and intended to cooperate with the actuating means 60, as will be explained below.
• the wheels 521a and 522a are arranged so that they mesh respectively with the wheels 301 and 302 and sequentially with the wheels 421 and 422, with reference to the actuation means, as will be explained below.
• the wheel 421 and the first of the wheels not shown and pivoting at 28a together form the first gear of timed time, while the wheel 422 and the second of the wheels not shown form the second gear of timed time.
• Rocker 521, with its wheel 521a forms the first clutch and rocker 522, with its wheel 522a, the second.
• the actuating means 60 are controlled by pushers 24, 25 and 26. They include: • a rocker 61 for starting and stopping control, provided with:
• control pin 61b arranged on the body 61a at one of its ends
• a drive pawl 61c pivotally mounted on the body 61a at the other end and positioned by a pin 61d fixed on the body
• interlocking-triggering levers 621 and 622 superimposed, each comprising a body identified by the letter a and pivoting in its middle part at the same point 28d of the frame 28, and each provided with a pawl identified by the letter b , intended to control the start and stop respectively of the first and of the second counter, of a trigger cutout identified by the letter ç and of a finger identified by the letter d and extending in the vicinity of the pusher 25;
• a switching lever 64 comprising: a body 64a pivotally mounted, in its middle part, on the frame at 28e,
• An arm 64b mounted articulated on the body 64a and carrying a pin 64c arranged to cooperate with the pusher 25 and the fingers 62 ld and 622d.
• a pawl 64d pivotally mounted at the free end of the arm 64b, positiom ed by a pin 64e, also secured to the arm 64b, - a contact finger 64f, disposed on the body 64a between its pivot point 28e and its end carrying arm 64b, and
• a release pin 64g disposed on the body 64a, at the end opposite to that carrying the arm 64b;
• a selection lever 65 formed: - of a body 65a pivotally mounted, by its middle part, at 28f on the frame
• an inter-cam lever 69 comprising a body 69a pivotally mounted in its middle part at 28k on the frame 28 and comprising a finger 69b bearing against the cam 67b, an index 69c intended to cooperate with the pin 6 lf, the finger and the index located near the wheel 67, while the other end, close to the wheel 68, comprises, pivotally mounted, a pawl 69d and a pin 69e, integral with the body 69a and serving as a stop for the pawl 69d .
• the initialization means 70 are all visible only in FIG. 6. They comprise a control lever 71 and a hammer 72, respectively pivotally mounted at 281 and 28m on the frame 28.
• the lever 71 carries a pin 71a, arranged so that the pusher 26 can actuate it. It is provided with a nose 71b, called to cooperate with the pawl 69d, and an arm 71c, forming a stop for the hammer 72.
• the hammer 72 is formed by a body 72a, which carries, in the vicinity of its pivot point 28m, a pin 72b and two overlapping noses 721c and 722c.
• the pin 72b is intended to cooperate with the arm 71c, while the noses 721c and 722c are arranged to work respectively with the columns of the wheels 661 and 662.
• the other end of the body 72a carries two arms 72d and 72e each provided with its free end of two superimposed heels, i.e. heels 72 ld and 722d for the arm 72d, 721e and 722e for arm 72e. These heels are intended to cooperate with the hearts with which the wheels carrying the needles 20 to 23 are provided.
• the rest position of the various parts constituting it is generally defined by the action of a spring holding each part in abutment.
• these springs are simply represented by an arrow, in order to avoid overloading the drawing.
• rocker 61 is maintained in the position represented in FIG. 3 by the action of a spring F61a, schematically represented by an arrow, as explained above, bearing against a stop which has not been shown in the drawing.
• a spring F61c maintains the pawl 61c in abutment against the pin 61d.
• the bodies 621a and 622a of the levers 621 and 622 are respectively held in place, against a stop not shown, by springs F621a and F622a superimposed and denoted F621 / 2a in FIG. 3.
• the pawls 621b and 622b are respectively constrained by springs tending to keep them in contact with the ratchet of column wheels 661 and 662, noted F621 / 2b.
• the switching lever 64 is supported by its contact finger 64f against the cam 67b, under the effect of a spring F64a acting on its body 64a.
• the arm 64b is pressed against a stop integral with the frame 28 and schematically represented by a pin 28n, under the effect of a spring F64b.
• the pawl 64d is positioned against the pin 64e by a spring F64d.
• the selection lever 65 is subjected to a spring F65a, acting on the body 65a so that the nose 65b is in abutment against the cam 68b, and to a spring F65c applying the arm 65c by the pin 65d against the lever 621 or 622.
• a spring F65a acting on the body 65a so that the nose 65b is in abutment against the cam 68b
• a spring F65c applying the arm 65c by the pin 65d against the lever 621 or 622.
• the position of the pawl 69d, pressing against the pin 69e, is ensured by a spring F69d.
• the lever 71 is subjected to a spring F71 which tends to resist the force applied by the pusher 26.
• a spring F72a is pressed against the body 72a, so that the heels come to bear against the hearts when neither the noses nor the pin 72a are no longer retained by the arm 71c and the columns of the wheels 661 and 662 respectively ( figure 6).
• the column wheels 661 and 662 and the coordination wheels 67 and 68 are positioned by jumper springs, not shown in the drawing.
• actuation means provide both a control and switching function. They thus constitute a control device, essentially formed by the rocker 61 and the levers 621 and 622, and a switching device formed essentially by the switching lever 64 and the selector lever 65.
• the pawl 621b drives the column wheel 661, so that the nose 521b is between two columns and the rocker 521 moves until the wheel 521a meshes with the wheel 421.
• the counter of first timed time is engaged.
• the pawl 61c cooperating with the star wheel 67a drives the coordination wheel 67.
• the tilting of the lever 64 brings the pin 64c into the space swept by the pusher 25, thus ensuring a clutch structure function, allowing actuation of the switching device, as will be explained below.
• These lever movements have no immediate effect, they only place these parts so that they can be activated later, as will be explained below.
• the hammer 72 also pivots when the pusher 24 is actuated. In fact, because of the rotation of the column wheel 661, the nose 721c is lifted by a column. The heels 72 ld, 722d, 721e and 722e then release the wheels from the chronograph wheels, in particular the wheels 421 and 422.
• state B actuation of the pusher 24 causes, in a manner similar to what has been described with reference to FIG. 3, the displacement of the rocker 61, which causes the column wheel 661 to rotate a new step and the coordination wheel 67.
• the rotation of the column wheel 661 brings the nose 521b into abutment against a column, so that the wheel 521a is again disengaged from the wheel 421.
• the mechanism is then in state C, that is to say that the first counter is stopped and displays the first timed time, while the second counter is at zero. In this state, the mechanism occupies the same position as that shown in FIG. 3.
• states A and C There are however two differences between states A and C. On the one hand the timed first time counter is no longer at zero, and d 'other hand, the hammer 72 is in the release position of the wheels and not in the initialization position. These differences do not appear in Figure 3.
• the pin 64c pushes simultaneously the levers 621 and 622, pressing against their fingers 62 ld and 622d, so that the pawls 621c and 622c drive the column wheels 661 and 662 respectively.
• the rocker 521 which was between two columns, passes against a column, while rocker 522, which was against a column, falls between two columns. In this way, the wheel 521a is disengaged from the wheel 421, which interrupts the counting of the first timed time, and the wheel 522a is engaged with the wheel 422, which starts the counting of the second timed time.
• a pressure on the pushbutton 24 causes, in a similar manner to what has been explained above, the pivoting of the rocker 61, which drives the arm 65c which is in a position such that its pin 65d controls the lever 622 only.
• the latter rotates the column wheel 662 by one step, so that the lever 522 abuts against a column and the wheel 522a and is disengaged from the wheel 422.
• the second counter like the first, is therefore stopped , which therefore corresponds to state E, in which the parts represented in the drawing occupy the same position as in state C.
• the only difference lies in the position of the hand 21 which displays a time, whereas at state C, it is zero.

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

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Citations (2)

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• 2002
  • 2002-06-13 EP EP02013067A patent/EP1372117B1/de not_active Expired - Lifetime
  • 2002-06-13 ES ES02013067T patent/ES2303537T3/es not_active Expired - Lifetime
  • 2002-06-13 AT AT02013067T patent/ATE392679T1/de not_active IP Right Cessation
  • 2002-06-13 DE DE60226132T patent/DE60226132T2/de not_active Expired - Lifetime
• 2003
  • 2003-06-13 CN CNB038131854A patent/CN100468466C/zh not_active Expired - Fee Related
  • 2003-06-13 WO PCT/IB2003/002314 patent/WO2003107278A2/fr active Application Filing
  • 2003-06-13 RU RU2005100507/28A patent/RU2312385C2/ru not_active IP Right Cessation
  • 2003-06-13 AU AU2003233088A patent/AU2003233088A1/en not_active Abandoned
  • 2003-06-13 JP JP2004514016A patent/JP4323424B2/ja not_active Expired - Fee Related
• 2004
  • 2004-05-19 HK HK04103529A patent/HK1060790A1/xx not_active IP Right Cessation

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