Classifications

• • G—PHYSICS
  • G04—HOROLOGY
  • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
  • G04B21/00—Indicating the time by acoustic means
  • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
  • G04B21/06—Details of striking mechanisms, e.g. hammer, fan governor
• • G—PHYSICS
  • G04—HOROLOGY
  • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
  • G04B11/00—Click devices; Stop clicks; Clutches
  • G04B11/006—Clutch mechanism between two rotating members with transfer of movement in only one direction (free running devices)
• • G—PHYSICS
  • G04—HOROLOGY
  • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
  • G04B21/00—Indicating the time by acoustic means
  • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
• • G—PHYSICS
  • G04—HOROLOGY
  • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
  • G04B21/00—Indicating the time by acoustic means
  • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
  • G04B21/12—Reiterating watches or clocks

Definitions

• the present invention relates to the field of watchmaking. It relates, more particularly, to a timepiece, in particular a timepiece comprising a striking mechanism comprising a striking gear, at least two striking hammers arranged to produce different tone sounds, a lifting of the hours and a first lift of the quarters to actuate one of the hammers, a lift of the minutes and a second lift of the quarters to actuate the other hammer, a part of the hours comprising a toothed sector arranged to cooperate with the ring gear, a rake of the hours arranged to actuate the lifting of the hours and a feeler hours arranged to cooperate with a cam hours, a quarter part comprising a quarter rake having a first set of teeth arranged to actuate the first lift quarters and a second set of teeth to actuate the second quarter lift, and a quarter feeler arranged to cooperate with a quarter cam, and a quarter piece Nutes comprising a minute rake arranged to actuate the lifting
• Such timepieces have been known for a long time, particularly in the field of so-called complicated watches such as repeating watches or big-bell watches. These watches have more or less complex mechanisms of ringing intended to ring on demand or automatically at regular intervals of time.
• the timepiece comprises a room hours, a quarter room and a minute room respectively comprising a rake and a feeler interdependent between them. Said parts are pivotally mounted around the same axis.
• the training of the quarter room by the hour room is done by means of an ankle provided on the hour room, engaged with an opening provided on the quarter room.
• the respective initial positions of the ankle and the opening vary according to the position of the room hours and room quarters, respectively, depending on the current time.
• the time required for the peg of the hour coin to come into contact with the opening of the quarter piece varies. This is why there may be a dead time of varying duration between the hour and the quarter bell, or between the hours and the minutes when there is no quarter to ring.
• the ring drive mechanisms are generally complex and provide for a superposition of different elements for preparing the ring and then the ring in cooperation with the ring gear.
• An object of the present invention is therefore to overcome these disadvantages, by proposing a timepiece bell to remove dead time between the hour and the hour of the quarter, or between hours and minutes when there is no quarter to ring. Another object is to provide a part to use a simplified ringing drive mechanism.
• a timepiece comprising a striking mechanism comprising a ring gear, at least two ring hammers arranged to produce sounds of different stamps, a lifting hours and a first lift of the quarters to actuate one of the hammers, a lifting of the minutes and a second lifting of the quarters to actuate the other hammer, a part of the hours comprising a toothed sector arranged to cooperate with the ring gear, a rake hours arranged to actuate the lifting hours and a feeler hours arranged to cooperate with a cam hours, a quarter part comprising a quarter rake having a first set of teeth arranged to actuate the first lift quarters and a second set of teeth arranged to actuate the second quarter lift, and a quarter feeler arranged to cooperate with a quarter cam, and a piece of minutes comprising a minute rake arranged to actuate the lifting of the minutes and a minute sensor arranged to cooperate with
• one of the hours part and the quarter part comprises a second drive gear and the other part of the hours part and quarter part comprises a second drive member arranged to be able to cooperate directly with said second drive gear and cinematically connect the workpiece hours and quarter part, eliminating the dead time between the hour and the quarter bell, or between that of the hours and that of the minutes when There is no quarter to ring.
• the first drive member may comprise a first hook pivotally mounted on the part of the quarters, the first drive gear being provided on the minute piece opposite said first hook.
• a first stop fixedly mounted on the frame of said part, the first hook being arranged to cooperate with said first stop so as to pivot to cooperate with one of the teeth of said first toothing according to the position of the minute room.
• a second fixed abutment mounted on the frame of said part, the second drive member being arranged to cooperate with said second abutment so as to cooperate with one of the teeth of said second toothing as a function of the position of said second drive teeth and to eliminate dead time.
• the second drive member may comprise a second hook.
• said second hook is pivotally mounted on the hours part, the second drive teeth being provided on the quarter part facing said second hook.
• the ring gear can comprise a ringing drive wheel comprising, coaxially arranged, a ringing wheel cooperating with a power source, a first gear cooperating with the hour piece, and a system clutch arrangement arranged to move between an engaged position according to which said ringing wheel is kinematically connected to said first pinion to enable the ringing and a disengaged position in which said first pinion is disconnected from said ringing wheel to enable the preparation for ringing.
• the clutch system comprises a ratchet integral with the ringing wheel and having a spout and a second pinion integral with the first pinion and arranged to cooperate with the pawl of the pawl, said pawl being arranged to move between the engaged position according to which the spout co-operates with said second pinion, said first and second pinions being rotated by the ringing wheel, and the disengaged position according to which the pawl nose is disengaged from said second pinion, said first and second pinions then being free to rotate relative to the ringing wheel.
• the clutch system may comprise a first integral plate of the ringing wheel, the pawl being carried by said first plate, said pawl comprising a first end pivotally mounted on said first plate and a second free end presenting the beak.
• the pawl may carry a pin cooperating with a detent ratchet freely rotatably mounted coaxially with the striking wheel and controlled by a control member, a part of the pawl between the pin and the nose being arranged so as to eccentric with respect to the axis of the ringing drive mobile.
• said trigger ratchet is arranged to be driven by its control member, and to move the second end of the pawl by driving the pin so that the beak ratchet disengages from the second gear.
• said trigger ratchet is arranged to be blocked by said control member, so as to retain the pin, and the ringing wheel is arranged to be rotated and take with it the first plate and the first end of the pawl so that said pawl tilts back its beak in cooperation with the second pinion.
• the clutch system may comprise a second plate comprising a first toothed sector and pivotally mounted on the ringing wheel, the pawl being integral with said second plate.
• the clutch system may also comprise a central tube having a second toothed sector arranged to cooperate with the first tooth sector of the second plate and secured to a control ratchet controlled by a control member.
• said control ratchet is arranged to be driven by said control member, and to move the pawl by driving the first toothed sector of the second tray so that the beak of the pawl emerges from the second gear.
• said control ratchet is arranged to be blocked by said control member, so as to retain the first tooth sector of the second plate, and the ringing wheel being arranged to be driven in rotation and to take the second plate and the pawl so that said pawl tilts back its beak in cooperation with the second pinion.
• FIG. 1 is a view, on the bridge side, of the three parts of the hours, quarters and minutes according to the invention, ready to ring
• FIG. 2 is a view, on the dial side, of the parts of the hours and quarters according to FIG. 3
• FIG. 4 is a view, on the bridge side, of the quarter pieces. and minutes according to the invention, before and after ringing
• FIG. 5 is a perspective view of a first embodiment of a ringing drive wheel according to the invention, the clutch system being in the engaged position
• FIG. 6 is a sectional view of the FIG. 5 is a perspective view of part of the striking drive unit of FIG. 5, the clutch system being in the disengaged position
• FIGS. 8 to 10 are perspective views of a second embodiment of a ringing drive wheel according to the invention.
• Figure 1 1 is a sectional view of Figure 8.
• FIG. 1 there is shown a striking mechanism 1 used in a timepiece according to the invention.
• the mechanism comprises a part of the hours 2, a quarter part 4 and a minute piece 6, which are, in known manner, intended to cooperate with a lifting of the hours 7a and a first lift of the quarters 7b, mounted on the same axis, to actuate a first hammer and with a lift of the minutes 8a and a second lift of the quarters 8b, mounted on the same axis, to actuate a second hammer arranged to produce different timbre sounds of the first hammer.
• the room hours 2 has the general shape of a circular arc and is pivotally mounted about an axis 3 passing through the center of the circle. It comprises an open interior space, presenting along one of its flanges, a circular toothed sector 9, concentric with the hour part 2, and arranged to cooperate with a pinion 10 of the ringing drive mobile, as will be described below.
• the room hours 2 also comprises, on its outer edge, a rake hours 1 1 arranged to operate the lifting hours 7a, and the opposite side, a probe hours 12 arranged to cooperate with a cam hours 13, carried by a star 14, and conventionally driven by a not shown basic movement, to take information relative to the current time.
• the feeler hours 12 may be integral with the room hours 2 or be an insert integrally mounted to said room hours 2.
• the quarter part 4 has the general shape of an arc of a circle, concentric with the arc of the room hours 2, and is pivotally mounted about the axis 3. It comprises a first interior space circular open, concentric, allowing the passage of the axis 15 of the mobile ringing drive.
• the quarter piece 4 comprises on its outer edge, in a known manner, a quarter rake having a first toothing 16a, of three teeth, arranged to actuate the first lift of the quarters 7b and a second toothing 16b, of three teeth , arranged to operate the second lift of the quarters 8b, to ring the quarter on two stamps.
• the quarter part 4 comprises a quarter probe 17 arranged to cooperate with a cam of the quarters 5, conventionally driven by a not shown basic movement, to take information relative to the current time.
• the probe of quarters 17 may be in one piece with the quarter part 4 or be an insert integrally mounted to said quarter part 4.
• a not shown spring is arranged to exert on the quarter part 4 a force tending to bring the quarter feeler 17 into contact with the cam of quarters 5.
• the room hours 2 and the quarter part 4 are kinematically connected by means of a drive member cooperating with a drive toothing, said drive member and said toothing of training are arranged to eliminate the dead time between the hour and the quarter bell, or between the hours and the minutes when there is no quarter to ring.
• the room hours 2 comprises, on the edge of its open inner space, opposite the flange carrying the toothed sector, a hook 18 pivotally mounted about an axis 19 and its return spring 20.
• the workpiece hours 2 includes at the hook 18, a recess forming a housing for said hook 18 for pivoting.
• the quarter part 4 comprises, nearing its center, a second circular, concentric, open inner space arranged with respect to the hour part 2 so that the hook 18 of the hour part appears in said second part. 4.
• a second stop 22 fixedly mounted on the frame of said part, the second hook 18 being arranged to cooperate with said second stop 22 so as to pivot to cooperate with one of the teeth of the second 21 drive tooth according to the position of the quarter part 4 and remove the dead time.
• a stop 22 such as a pin, fixedly mounted on the frame of the timepiece, cooperating with the hook 18 which has a shape such that when the room hours 2 pivots around its axis 3 and falls by driving the hook 18, the latter meets the stop 22 and is raised to disengage the drive gear 21, and when the hour piece pivots about its axis 3 during the ringing leading the hook 18, said hook 18 is no longer retained by the stop 22 and pivots to cooperate with a tooth of the drive gear 21 of the quarter part 4, as will be described later.
• the minute piece 6 has the general shape of an arc of a circle, concentric with the arc of the room of the hours 2 and of the room of the quarters 4, and is mounted pivoting about the axis 3.
• the three parts of the hours 2, quarters 4 and minutes 6 are generally concentric and pivot about the same axis 3.
• the minute piece 6 has an inner space circular, concentric, allowing the passage of the axis 15 of the ringing drive mobile. It comprises on its outer rim, in a known manner, a rake minutes arranged to actuate the lifting minutes 8a, and the opposite side, a minute sensor 26 arranged to cooperate with a minute cam 27 driven classically by the basic movement not shown, in order to take information relating to the current time.
• the minute cam 27 and the quarter cam 5 are coaxial and include a surprise 29.
• the minute sensor 26 can be in one piece with the coin 6 nninutes or be an integral element mounted integrally to said minute piece 6.
• a not shown spring is arranged to exert on the minute piece 6 a force tending to bring the feeler minutes 26 in contact with the minute cam 27.
• the quarter part 4 and the minute part 6 are kinematically connected by means of a drive member cooperating with a first toothing.
• the quarter part 4 also has, on its outer periphery, in the extension of the quarter sensor 17, a hook 30, pivotally mounted about an axis 31 and its return spring 32.
• the minute piece 6 comprises, at the level of the hook 30, a concentric circular opening, arranged with respect to the quarter piece 4 so that the hook 30 of the quarter piece appears in said opening of the minute piece 6.
• a stop 36 such as a pin, fixedly mounted on the frame of the timepiece, cooperating with the hook 30 which has a shape such that when the quarter part 4 pivots around its axis 3 and falls by driving the hook 30, said hook 30 meets the stop 36 and is lifted to disengage the drive gear 34, and when the quarter part 4 pivots about its axis 3 during the ringing by driving the hook 30, said hook 30 is no longer retained by the stop 36, and pivots to cooperate with a tooth of the drive toothing 34 of the minute piece 6, as will be described later.
• the hour part 2 must be driven by the pinion 10, which can be kinematically connected to any suitable ringing drive mobile.
• This ringer drive unit 40 comprises, arranged coaxially with respect to the axis 15, a rim wheel. ring 41 secured to the axis 15, the pinion 10 mounted free to rotate about said axis 15, and a clutch system 43 arranged to move between an engaged position according to which the ringing wheel 41 is kinematically connected to the pinion 10 to allow the ringing, and a disengaged position in which the pinion 10 is disconnected from the ringing wheel 41 to allow the preparation for ringing.
• the ringing wheel 41 cooperates with the other elements of the ring gear, powered by a power source such as a ring barrel (not shown). As described above, the pinion 10 cooperates with the toothed sector 9 of the hours 2 part.
• the clutch system 43 comprises a plate 44 secured to the ringing wheel 41, a pawl 45 carried by said plate 44 and arranged to move between the engaged position and the disengaged position, and a pinion 46 mounted free to rotate around the axis 15 and secured to the pinion 10.
• the pawl 45 comprises a first end 45a pivotally mounted on the plate 44 about an axis 47 fixed on said plate 44, and a second end 45b lying freely on the plate 44 and completed by a spout 49 arranged to cooperate with the pinion 46 in the engaged position as shown in Figure 5.
• the pawl 45 carries a pin 50 mounted therethrough in a corresponding oblong hole provided on a trigger ratchet 52.
• the trigger 52 is mounted free to rotate about the axis 15, above the pawl 45, and is driven by a control member, such as a trip lever (not shown).
• the part of the pawl 45 between the pin 50 and the spout 49 is arranged eccentrically with respect to the axis 15 so that this part deviates from the axis 15 when the trigger ratchet 52 is actuated by the organ order to clear the nose 49 of the pinion 46, in order to disconnect said pinion 46 of the plate 44 and thus of the ringing wheel 41 to reach the disengaged position.
• This ringing drive mobile 60 comprises, arranged coaxially with the axis 15, a ringing wheel 61 mounted free to rotate about said axis 15, the pinion 10 integral with the axis 15, and a system of clutch 63 arranged to move between an engaged position according to which the ringing wheel 61 is kinematically connected to the pinion 10 to allow the ringing, and a disengaged position in which the pinion 10 is disconnected from the ringing wheel 61 to allow the preparation to the alarm.
• the ringing wheel 61 cooperates with the other elements of the ring gear, powered by a power source such as a striking barrel (not shown). As described above, the pinion 10 cooperates with the toothed sector 9 of the hours 2 part.
• the clutch system 63 comprises a rake 64 coaxial with the axis 15, and having a toothing 65 arranged to cooperate with a control member such as a trip lever (not shown).
• the rake 64 comprises a control pawl 66 and a spring 67.
• the clutch system also comprises a drive ratchet 68 secured to a central tube 69 mounted free to rotate about the axis 15.
• the drive ratchet 68 comprises a toothing arranged to cooperate with the ratchet of 66 of the rake 64.
• the central tube 69 comprises a toothed sector 70 whose role will be described below.
• the clutch system 63 comprises a release pawl 74 integral with a plate 75 pivotally mounted on a support 76 about a pivot 77 fixed on said support 76.
• This support 76 is integral with the ringing wheel 61.
• the release pawl 74 and the support 76 are arranged around the disengagement ratchet 72, corresponding to the second pinion integral with the first pinion 10.
• the disengagement pawl 74 comprises a spout 78 arranged to cooperate with the toothing of the declutching ratchet 72
• the plate 75 has a central inner opening 80 for the passage of the central tube 69 and its toothed sector 70.
• toothed sector 82 arranged to cooperate with the toothed sector 70 of the central tube 69.
• the drive ratchet 68 has an opening for the passage of the upper part of the support 76.
• the ringing control member In reference to the driving wheel 60, when the ringing control member is actuated, it drives the rake 64 by its teeth 65 in the counter clockwise on a given angle.
• the control pawl 66 then drives the drive ratchet 68, itself driving the central tube 69, which is integral therewith, and its toothed sector 70. All these parts rotating together, the central tube 69 constitutes a single and unique length bearing to the whole, which improves the quality of operation.
• the toothed sector 70 of the central tube 69 pushes the toothed sector 82 of the plate 75 thus rotating, counterclockwise, said plate 75 and the release pawl 74 which is secured thereto, about its pivot 77.
• Said pivot 77 being offset relative to the axis 15, the movement of the release pawl 74 is not concentric with the axis 15.
• the hour part 2 is therefore also free to rotate about its axis 3, its toothed sector 9 rotating the pinion 10 released. Under the action of its return spring, the hour part 2 then moves in rotation in the clockwise direction until the hour sensor 12 reaches the hour cam 13 positioned according to the current time. The pinion 10 is then positioned in correspondence with the toothed sector 9 (on the left in FIG. 1).
• the hook 18 meets the stop 22 so that it pivots and disengages the toothing 21.
• the quarter part 4 is thus released. Under the thrust of its spring, the quarter part 4 rotates clockwise and falls on the quarter cam 5 positioned according to the current time.
• the hook 30 meets the stop 36 so that it rotates and disengages the toothing 34.
• the minute piece 6 is thus released. Under the pressure of its spring, the minute piece 6 pivots clockwise and falls on the minute cam 27 positioned in function current time.
• the pieces thus placed, as shown in Figures 1 and 2 enter into action for the ring, powered by the energy source of the ring gear.
• the control member driving the trigger ratchet 52 is returned to the rest position by a spring and blocks the trigger ratchet 52. During the ringing, it will then be used as a jumper for the relaxation ratchet 52.
• the ringing wheel 41 is driven by the other elements of the ring gear in the counterclockwise direction so that the plate 44, the axis 47 and the first end 45a of the pawl 45 also advance counterclockwise.
• the pin 50 being engaged in the detent ratchet 52 locked in rotation by its control member, retains the pawl 45 so that said pawl 45 tilts about the axis 47 by bringing the spout 49 to the pinion 46 to the spout 49 cooperates with said pinion 46 to reach the engaged position shown in Figure 5.
• the pinions 46 and 10 are kinematically connected to the ringing wheel 41 via the pawl 45, so that the pinion 10 pivots in the counterclockwise direction.
• control member In reference to the ringing drive mobile 60, the control member is returned to the rest position by a spring and locks the toothing 65 of the rake 64. Its control pawl 66 then retains the drive ratchet 68 by the force of the spring 67. The drive ratchet being retained, the central tube 69 and its sector gear 70 are also retained. The toothed sector 70 of the central tube 69 then retains the toothed sector 82 of the plate 75.
• the ringing wheel 61 is driven by the other elements of the ring gear in the counterclockwise direction.
• the pivot 77 of the plate 75 being integral with the ringing wheel also advances in the counterclockwise direction.
• the combination of the movement of the pivot 77 of the plate 75 and the force of its toothed sector 82 causes a movement of the release pawl 74, its spout 78 swinging towards its disengaging ratchet 72.
• the spout 78 of the release pawl 74 reaches the declutching ratchet 72 and then starts push it to reach the engaged position.
• the pinion 10 pivoting in the counterclockwise direction, causes a rotational movement of the workpiece hours 2 in the counterclockwise direction.
• the rake hours 1 1 cooperates with the lifting hours 7a to lift the first hammer according to the current time.
• the hour part 2 continues its rotation by driving with it the hook 18.
• the hook 18 is arranged so that it leaves the stop 22, pivots and comes into contact with one of the teeth of the drive gear 21 according to the position of the quarter part 4 depending on the current time.
• the hook 18 When the hours have finished ringing, the hook 18 is always found in the same place regardless of the number of hours struck. As a result, he falls on the tooth of the quarterpiece that is positioned next to the hook via the quarter probe according to the number of quarters to ring.
• the quarter part 4 driven by the hour part 2 by means of the hook 18 pivots in the counterclockwise direction, its teeth 16a, 16b cooperating with the lifts of quarters 7b, 8b to lift the first hammer and the second hammer according to the current time.
• the quarter part 4 continues its rotation by driving with it the hook 30.
• the hook 30 is arranged so that it leaves the abutment 36, pivots and comes into contact with one of the teeth of the drive toothing 34 depending on the position of the minute part 6 depending on the current time.
• the minute room 6 driven by the quarter part 4 by means of the hook 30 pivots in the counterclockwise direction, the minute rake 25 cooperating with the minutes lift 8a to lift the second hammer according to the current time .
• the training of the quarter part by the hour part by means of a hook and a gear respectively provided on one or the other of these parts according to the The invention makes it possible to simplify the ringing drive wheel in comparison with a traditional ringing drive wheel which comprises a ratchet of hours, a quarter gear and its drive mechanism, such as a finger cooperating with a pin. .

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

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• 2010
  • 2010-07-08 CH CH01115/10A patent/CH703406B1/fr unknown
• 2011
  • 2011-07-04 US US13/808,970 patent/US9098068B2/en active Active
  • 2011-07-04 JP JP2013517337A patent/JP5968311B2/ja active Active
  • 2011-07-04 EP EP11729120.3A patent/EP2591401B1/de active Active
  • 2011-07-04 WO PCT/EP2011/061237 patent/WO2012004224A1/fr active Application Filing

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