EP3108306A1 - Mecanisme de sonnerie pour une piece d'horlogerie - Google Patents
Mecanisme de sonnerie pour une piece d'horlogerieInfo
- Publication number
- EP3108306A1 EP3108306A1 EP15705584.9A EP15705584A EP3108306A1 EP 3108306 A1 EP3108306 A1 EP 3108306A1 EP 15705584 A EP15705584 A EP 15705584A EP 3108306 A1 EP3108306 A1 EP 3108306A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ratchet
- quarter
- hour
- hours
- minutes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 72
- 238000004804 winding Methods 0.000 claims description 32
- 230000009471 action Effects 0.000 claims description 31
- 239000000523 sample Substances 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000005352 clarification Methods 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 241000282461 Canis lupus Species 0.000 description 1
- 210000003323 beak Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- G04B21/04—Hour wheels; Racks or rakes; Snails or similar control mechanisms
-
- 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
- G04B21/14—Winding-up the striking mechanism by the clockwork; winding up the clockwork by the striking mechanism
Definitions
- the present invention relates to a striking mechanism for a timepiece such as a wristwatch or a pocket watch.
- the striking mechanism is for example a minute repeater or a big ring.
- the present invention aims to remedy this drawback, or at least to mitigate it, and proposes for this purpose a striking mechanism for a timepiece comprising:
- ratchets to operate the hammers, a ratchet of the hours, a ratchet of the quarters and a ratchet of the minutes to activate the lifts in order to ring the hours, the quarters and the minutes, these ratchets being mounted pivoting around the same axis, a cam of the hours, a cam quarter and minute cams, an hour sensor, a quarter feeler and a minute feeler arranged to cooperate with the hour, quarter and minute cams respectively, and
- a rake of hours between the pinion of hours and the feeler of the hours a rake of the quarters between the pinion of the quarters and the feeler of the quarters and a rake of the minutes between the pinion of the minutes and the probe of the minutes.
- the rakes can mesh directly with the gears for hours, quarters and minutes or indirectly via one or more pinions for example.
- the probes may be mounted pieces on the rakes, may be in one piece with the rakes or may be connected to the rakes by flip-flops, springs, pins, etc.
- the striking mechanism may be of the type triggerable by a push button, a pusher crown, a lock or any other appropriate actuating member. It can be a minute repeater or a big bell, for example.
- the ratchets are each in the form of a wheel.
- the rakes are pivotally mounted about respective axes, at least one of which is not confused with any of the other axes.
- minute and quarter rakes are pivotally mounted about the same axis and the hour rake is pivoted about an axis separate from the pivot axis of the minute and quarter rakes.
- the striking mechanism comprises a driving device for driving a kinematic chain of quarters including quarter ratchet, quarter gear and quarter rake by a kinematic chain of hours including hour ratchet, pinion hours and rake hours.
- this driving device comprises a stepped surface defined by a part of the kinematic chain of hours, a lever pivotally mounted on a part of the driveline, a driving element carried by the lever and a fixed abutment.
- said parts of the kinematic chain of the hours and of the kinematic chain of the quarters being coaxial, the staircase surface extending in a plane perpendicular to the axis of rotation of said parts and defining steps and risers, the element of a drive protruding from the lever parallel to said axis of rotation and being arranged to cooperate with the fixed stop so that it can be driven by one of the risers as a function of the number of quarter (s) to ring, so that the time that elapses between the end of the hour ring and the beginning of the quarter ring be the same regardless of the number of quarter (s) to ring.
- the part of the kinematic system of the hours is the ratchet of the hours and the part of the kinematic chain of the quarters is the ratchet of the quarters.
- the striking mechanism may include a driving device for driving a minute drivetrain comprising the minute ratchet, the minute gear and the minute rake by a quarts drivetrain including the quarter ratchet, the quarter gear and the quarter rake.
- this training device comprises a stepped surface defined by a part of the driveline chain, a lever pivotally mounted on a part of the kinematic chain of minutes, a driving element carried by the lever and a fixed stop, said parts of the driveline.
- the shifts and kinematic channel of the minutes being coaxial, the stepped surface extending in a plane perpendicular to the axis of rotation of said parts and defining steps and risers, the driving element projecting from the lever parallel said axis of rotation and being arranged to cooperate with the fixed stop so as to be driven by one of the risers as a function of the number of minute (s) to ring, so that the time that elapses between the end of the quarter ringing and the start of the minute ring is the same regardless of the number of minute (s) to ring.
- the striking mechanism further comprises a striking barrel and a clutch device, and the ratchet of the hours is arranged to be coupled to the striking barrel when the clutch device is in an engaged state and to be decoupled from the ringer barrel when the clutch device is in a disengaged state.
- the striking drum can be connected to a regulator via a ring gear.
- the clutch device may comprise a rocker arranged to pivot between a first position corresponding to the engaged state of the clutch device and a second position corresponding to the disengaged state of the clutch device.
- the clutch device may further comprise a pinion or clutch wheel mounted on the rocker, this pinion or clutch wheel coupling the ratchet hours to the barrel of the ring when the rocker is in the first position and not coupling the ratchet of the hours to the barrel of alarm when the rocker is in the second position.
- the clutch device may comprise a differential gear disposed between the ringer barrel and ratchet hours and on which can act a locking member carried by the latch.
- the clutch device may comprise a vertical clutch mobile disposed between the ringer barrel and the hours ratchet and comprising an element, typically a wheel, which is movable along an axis of the mobile unit.
- vertical clutch to move the clutch device from an engaged state to a disengaged state and vice versa, the movement of said element can be controlled by the rocker.
- the rocker can carry an abutment member arranged to, in the event of an impact, prevent a displacement of said element along said axis against the action of a return spring to which said element is subjected, when the rocker is in his first position.
- the rocker carries a projecting element which, when the striking mechanism is in the rest state, is held in abutment against a trigger lever by a return spring of the rocker, this trigger lever can be pivoted by a manual actuating member for releasing the projecting element and with it the rocker and pass the rocker from its first position to its second position under the action of its return spring and thereby trigger the ringing.
- the striking mechanism may further include a first lock lever arranged to abut the protruding member and prevent the release of the protruding member when the energy accumulated in the ringer barrel is less than a predetermined value.
- the first blocking lever can be arranged to be controlled by a ringing power reserve display wheel.
- the striking mechanism may further comprise a second locking lever arranged to serve as a stop for the projecting element and to prevent the releasing the protruding element when a winding stem of the timepiece is in a setting position.
- the present invention also proposes a timepiece comprising a striking mechanism as defined above and a movement, characterized in that the movement comprises its own barrel, and in that a device is provided for raising the ringing barrel by a rotation of a winding stem in one direction and winding the barrel of movement by a rotation of the winding stem in the other direction, said device comprising an input wheel arranged to be driven into a direction or in the other by the winding stem, at least a first pawl carried by one of the two faces of the input wheel, at least a second pawl carried by the other of the two faces of the input wheel, a first pinion coaxial with the input wheel and comprising a unidirectional toothing cooperating with the first pawl, a second pinion coaxial with the input wheel and comprising a unidirectional toothing cooperating with the two it ratchet, a first output wheel secured to the first pinion and kinematically connected to the ratchet barrel ratchet and a second output wheel secured to the second
- FIG. 1 is a plan view from below of a striking mechanism according to a preferred embodiment of the invention, in an engaged state,
- FIG. 2 is a bottom plan view of the striking mechanism according to the preferred embodiment of the invention, in a disengaged state, the detail of Figure 2, designated by A, showing the cooperation between a beak of a clutch rocker and a stopping star
- FIG. 3 is a plan view from above of the striking mechanism according to the preferred embodiment of the invention, in the idle state
- FIG. 4 is a plan view from above of the striking mechanism according to the preferred embodiment. of the invention, after its release
- FIG. 5 is a sectional view of a ratchet shaft equipped with ratchets and hour, quarter and minute gears forming part of the striking mechanism according to the preferred embodiment of the invention
- FIG. 6 is a perspective view of rises, ratchets, rakes and feelers of the hours, quarters and minutes forming part of the striking mechanism according to the preferred embodiment of the invention
- FIG. 7 is a partial plan view of the striking mechanism according to the preferred embodiment of the invention, in the idle state
- FIG. 8 is a partial plan view of the striking mechanism according to the preferred embodiment of FIG. invention, showing the connection between the quarter rake and the minute rake
- FIG. 9 is a partial plan view of the striking mechanism according to the preferred embodiment of the invention, showing the release of the rake of the quarters during the fall of the hour rake,
- FIG. 10 is a partial plan view of the striking mechanism according to the preferred embodiment of the invention, showing the release of the minute rake upon the fall of the quarter rake,
- FIG. 11 is a partial plan view of the striking mechanism according to the preferred embodiment of the invention, showing the quarter feeler taking the information of the number of quarters to ring on a quarter cam
- FIG. 12 is a partial plan view of the striking mechanism according to the preferred embodiment of the invention, showing the minute feeler taking the information of the number of minutes to ring on a minute cam;
- FIG. 13 is a partial plan view of the striking mechanism according to the preferred embodiment of the invention, showing the cooperation between the quarter feeler, a first clutch control lever and a second clutch control lever.
- FIG. 14 is a partial plan view of the striking mechanism according to the preferred embodiment of the invention, showing a device for driving the ratchet of quarters by the ratchet of hours, at the moment of taking the number of information hours and quarters to ring,
- FIG. 15 is a partial plan view of the striking mechanism according to the preferred embodiment of the invention, showing the quarter ratchet driving device by the hours ratchet in a configuration where the ratchet of the hours begins to drive the quarter ratchet, around the last stroke of the hours (before, during or after the last stroke),
- FIGS. 16 and 17 are partial planar views of the striking mechanism according to the preferred embodiment of the invention, showing a device making it possible to automatically prevent the ringing being triggered when the power reserve of the barrel supplying the bell is insufficient, in two different configurations,
- FIGS. 18 and 19 are partial plan views of the striking mechanism according to the preferred embodiment of the invention, showing a device for preventing the striking of the bell at a time setting in two configurations.
- FIG. 20 is a perspective view of two barrels and a device for refitting these barrels used in the present invention
- FIG. 21 is a sectional view of the winding device illustrated in FIG. 20,
- FIGS. 22 and 23 are perspective views of the winding device illustrated in FIG. 20,
- FIGS. 24 and 25 are partial plan views, respectively from below and from above, of the striking mechanism showing, in particular, a clutch device and a striking lever according to an embodiment variant,
- FIG. 26 is a sectional view of a differential gear forming part of the clutch device illustrated in FIGS. 24 and 25,
- FIG. 27 is a partial plan view from below of the striking mechanism showing in particular a clutch device according to a another variant embodiment, and
- Figure 28 is a sectional view of the clutch device shown in Figure 27.
- ratchet (with the exception of a barrel ratchet) means any toothed member intended to actuate one or more striking hammer lifts.
- a striking mechanism intended to be integrated or added to the movement of a timepiece, typically a wristwatch, comprises, in a frame 1, a ring gear 2 connecting a power source 3 to a regulator 4.
- the power source 3 is typically a ringing barrel in engagement with a wheel 2a of the ring gear 2 and can be reassembled by turning a rod 5.
- the winding stem 5 is preferably the winding stem of the movement, serving to raise also the cylinder of the movement.
- the regulator 4 is for example a centrifugal regulator (Watt regulator). It serves to regulate the tempo of the shots to ring.
- a clutch rocker 6 pivoting about an axis 7 carries two pinions 8, 9 rotatable relative to the rocker 6.
- the pinion 8 is rotatable about the axis 7 and is permanently engaged with a pinion 10 integral with a ringing shaft 1 1.
- the pinion 8 also meshes permanently with the pinion 9, called “clutch gear”.
- the clutch gear 9 meshes with a pinion 12 which is engaged with the ringer barrel 3 and thus transmits the movement of the clutch.
- ringing barrel 3 to the ringing shaft 1 1 via the pinions 8, 10.
- a second position, or disengaged position of the clutch lever 6 (see FIG.
- the clutch gear 9 does not mesh with the pinion 12 and thus leaves the ringing shaft 1 1 free in rotation.
- the clutch gear 9 carried by the clutch rocker 6 could, in the engaged position, meshing with a pinion or wheel of the ring gear 2 so as to receive the movement of the barrel ring 3 via said train.
- the clutch rocker 6 is subjected to the action of a return spring 13 which tends to rotate in the direction of disengagement.
- the clutch rocker 6 carries a pin 14 which, when the striking mechanism is in its rest state (FIG. 3), is held in abutment against a first end of a bell release lever 15 by the action of the return spring 13, thus maintaining the clutch rocker 6 in its engaged position.
- the ringing trip lever 15 In its rest position the ringing trip lever 15 is held in abutment against a surface 1a of the frame 1 by an on-off spring 17 (see Figures 3 and 16). The ringing trip lever 15 can be actuated to release the pin 14 and thus the clutch rocker 6 (FIG.
- the clutch rocker 6 defines a spout 18 arranged to cooperate with a stopping star 19 secured to a wheel 2b of the ring gear 2 (see Figures 1 and 2).
- ratchets 20, 21, 22 On the ringing shaft 1 1 (see Figures 5 and 6) are mounted three ratchets 20, 21, 22 in the form of wheels. These ratchets include a ratchet of hours 20, a ratchet of quarters 21 and a ratchet of minutes 22.
- the hour ratchet 20 is integral with the ringing shaft 1 1 and the pinion 10.
- the ratchets of quarters 21 and minutes 22 are themselves free to rotate relative to the ringing shaft 1 1.
- the teeth of the ratchets 20, 21, 22 serve to actuate striking lifts 23, 24, 25, 26 which themselves actuate hammers 27, 28 which strike stamps 29, 30 to excite them (see FIGS. ).
- the levees include a 23 hour lift, a first coaxial shift 24 at the 23 hour lift, a 25 minute lift and a second quarter lift 26 coaxial at the 25 minute lift.
- Each group of levees 23-24 respectively 25-26, is arranged to actuate a respective hammer 27, 28, which is arranged to hit a respective patch 29, 30, the two patches 29, 30 producing different sounds.
- the hour ratchet 20 comprises a toothing with 12 teeth to actuate the lifting of the hours 23 so that it actuates the hammer 27, called "hammer hours”.
- the minute ratchet 22 includes a toothing with 14 teeth to actuate the lifting of the minutes 25 so that it actuates the hammer 28, said "hammer minutes”.
- the quarter ratchet 21 comprises two 3-toothed teeth for actuating the two lifts of the quarters 24, 26, respectively, so that they alternately operate the hour hammer 27 and the minute hammer 28.
- the ratchets of the hours, quarters and minutes 20, 21, 22 are secured respectively to gears hours, quarters and minutes 31, 32, 33 ( Figure 5).
- the pinion hours 31 is engaged with a toothing of a hour rake 34 (see Figures 6 and 7).
- the quarter gear 32 is engaged with a tooth of a quarter rake 35.
- the minute gear 33 is engaged with a toothing of a minute rake 36.
- the quarter and minute rakes 35, 36 pivot about 37.
- the rake of the hours 34 it pivots preferably about an axis 38 distinct from the pivot axis 37 of the rakes quarters and minutes 35, 36, but could alternatively rotate around the same pivot axis 37 as the quarter and minute rakes 35, 36.
- a hours feeler 39 is pivotally mounted about the pivot axis 38 of the hour rake 34.
- the spout 40 of the hour sensor 39 is arranged to cooperate with an hour cam 41 (visible in Figure 1).
- a pin 42 (see Figure 9) carried by the hour sensor 39 and engaged in an opening
- the spout 45 of the quarter probe 44 is arranged to cooperate with a quarter cam 46 (see Figure 7).
- a pin 47 carried by the quarter rake 35 and engaged in an aperture 48 of the quarter sensor 44 defines a relative angular displacement range between the quarter feeler 44 and the quarter rake 35.
- a feeler minutes 49 is integral with the minute rake 36 and preferably in one piece with the minute rake 36 (see Figure 6).
- the spout 50 of the minute probe 49 is arranged to cooperate with a minute cam 51 (see Figure 12).
- the hour, quarter and minute cams 41, 46, 51 are of conventional type and are driven by the movement in a conventional manner.
- the cams of quarters and minutes 46, 51 pivot about the same axis which can be that of the roadway of the movement.
- the hour cam 41 it is preferably non-coaxial with the cams quarters and minutes 46, 51.
- Each rake hour, quarter and minute 34, 35, 36 is subjected to the action of a spring 52, 53, 54 (see Figures 6 and 7) tending to rotate in the direction that brings the nose of the probe corresponding to the corresponding cam.
- the hour rake 34 carries a quarter trigger latch 55 which pivots about an axis 56 (see Figures 6 and 7).
- the hour sensor 39 and the quarter trip lever 55 are connected by a spring 57 which keeps these two parts 39, 55 in contact with each other.
- the quarter trigger latch 55 is arranged to cooperate with a quarter isolator 58 mounted on the frame 1 of the striking mechanism.
- the quarter isolator 58 is pivotally mounted about an axis 59 and its angular displacement is limited by a pin 60 fixed to the frame 1 and engaged in an opening 61 of the isolator of the quarters 58.
- the isolator of the quarters 58 carries a pin 62 which, in the rest position of the isolator of the quarts 58, serves at a certain moment of stop at the rake of the quarters.
- the isolator of the quarters 58 is subjected to the action of a return spring 58a tending to keep him in his rest position.
- the quarter feeler 44 comprises at its end opposite to that defining the spout of the quarter 45 a spout 63 arranged to actuate a first clutch control lever 64 (see Figure 13).
- the first clutch control lever 64 is mounted on the quarter rake 35 and subjected to the action of a return spring 65 which keeps it in contact with the nose 63 of the quarter feeler 44.
- the first control lever clutch 64 is arranged to actuate a second clutch control lever 66 mounted on the frame 1.
- the second clutch control lever 66 defines a fork 67 which receives the pin 14 carried by the clutch lever 6.
- the quarter rake 35 and the minute rake 36 are connected to each other by a pawl or hook 68 (see FIG. 8) pivotally mounted on the rake of the quarters 35 and defining a tooth 69 arranged to cooperate with a second toothing 70 rake minute 36 to secure the rakes quarters and minutes 35, 36.
- the pawl 68 is subjected to the action of a return spring 68a which tends to maintain the tooth 69 in the toothing 70.
- a ratchet stop 71 fixed on the frame 1, is arranged to cooperate with another tooth 72 of the pawl 68 (see Figure 10) to rotate the pawl 68 against the action of its return spring and thus clear the tooth 69 of the toothing 70 and disconnect the quarter and minute rakes 35, 36.
- the hour and quarter ratchets 20, 21 are connected to each other by a lever 73 carried by the quarter ratchet 21 and pivotally mounted relative to the quarter ratchet 21 about an axis 74 (see FIG. 14).
- the lever 73 carries a drive pin 75 arranged to cooperate with a stepped surface of the hour ratchet 20.
- the stepped surface extends in the plane of the hour ratchet 20, that is to say in a plane perpendicular to the common axis of rotation of the ratchets 20, 21, and connects the peripheral portion of the hour ratchet 20 to its central portion along a curve.
- the stepped surface defines steps or steps 76 and four risers 77.
- Each step 76 is substantially concentric with the axis of rotation of the ratchets 20, 21 but is located at a radial position different from the other steps.
- the lever 73 extends and pivots in a plane perpendicular to the axis of rotation of the ratchets 20, 21.
- the drive pin 75 extends parallel to said axis of rotation to cooperate with the stepped surface 76, 77.
- the drive pin 75 is also adapted to cooperate with a lever stop 78 fixed to the frame 1 and comprising a surface 79 of angular positioning of the lever 73 extending in a curve coinciding with that mentioned above when the hour ratchet 20 is in a predetermined angular position (see Figure 15).
- the lever 73 is subjected to the action of a return spring 80 which tends to pivot the lever 73 in the counterclockwise direction of FIG. 14.
- the return spring 80 is preferably in one piece with the lever 73, as shown, and mounted by one of its ends 80a on the ratchet of quarters 21.
- the end 80a is for example mounted free to rotate about a pin 80b fixed on the ratchet of the quarter 21.
- the striking mechanism operates as follows. In the idle state of the striking mechanism, the clutch rocker 6 is in its engaged position (see FIG. 1), its spout 18 is outside the toothing of the stopping star 19 and the striking barrel 3, the ring gear 2, the ratchets 20, 21, 22 and the rakes 34, 35, 36 are stationary.
- the hour rake 34 is held in abutment against the pin 60 (see Figure 7) by the force of the ringer barrel 3, which prevents the ringer barrel 3 to unwind.
- the quarter ratchet 21 is retained by the hour ratchet 20 via the lever 73 whose drive pin 75 bears against one of the risers 77 (see FIG. 15).
- the minute rake 36 is retained by the quarter rake 35 via the pawl 68 whose tooth 69 is engaged in the toothing 70 (see Figure 8).
- the rakes of hours, quarters and minutes 34, 35, 36 fall under the action of their return springs 52, 53, 54, but the quarter rake 35 is stopped in its stroke by the pin 62 of the isolator of the quarters 58 (see Figure 7).
- the minute rake 36 is linked to the quarter rake 35 by the ratchet 68, it is also stopped in its race.
- the falling hour rake 34 moves the hour sensor 39 towards the hour cam 41.
- the tip 40 of the hour sensor 39 comes into contact with the hour cam 41 to take the information of the number of hours to ring.
- the hour rake 34 continues its course, and as the quarter tripping lever 55 is in abutment against the probe of hour 39, the quarter trigger latch 55 is rotated and itself rotates the isolator of quarters 58 (see Figure 9). The movement of the hour rake 34 stops when a wall of its opening 43 comes into abutment against the pin 42 of the hour sensor 39.
- the minute rake 36 is thus disengaged from the quarter rake 35 and can fall under the action of its return spring 54.
- the tip 45 of the quarter probe 44 and the nose 50 of the minute probe 49 come into contact respectively with the quarter cam 46 and with the minute cam 51 to take the in formation of the number of quarters and minutes to ring (cf. Figures 1 1 and 12). It may happen that the spout 50 of the minute probe 49 comes into contact with the minute cam 51 before the pawl 68 is released from the toothing 70. In this case, the pawl 68 clicks on the toothing 70, which allows the quarter rake 35 to continue its course to allow the quarter feeler 44 to take the information on the quarter cam 46.
- the driving pin 75 comes into contact with the lever stop 78, is guided by the positioning surface 79 of the lever stop 78 and comes position on this surface 79 at a radial position (relative to the axis of the ratchets 20, 21, 22) corresponding to one of the four risers 77 as a function of the number of quarters to ring.
- the displacement of the drive pin 75 on the positioning surface 79 causes the lever 73 to pivot about its axis 74 against the action of its return spring 80, which action holds the drive pin 75 against the surface positioning 79.
- the angular amplitude of displacement of the rake of hours 34 and ratchet of hours 20, and therefore the number of ratchet teeth of hours 20 which meet the lifting of hours 23, depend on where the spout 40 of the hour sensor 39 was on the hour cam 41 and thus the angular position of the hour cam 41.
- This angular displacement amplitude of the hour rake 34 and hours ratch 20 corresponds to the number of strokes to be struck to indicate the hours.
- the time that elapses between the end of the hour ring and the beginning of the quarter ring is the same whatever the number quarter to ring.
- the device 73, 76, 77, 79 has the advantage of eliminating the risk of bracing between said spout and the toothing.
- the pawl 68 carried by the quarter rake 35 is disengaged from the ratchet stop 71 and engages in the teeth 70 of the minute rake 36, thus enabling
- the minute ratchet 22 driven by the minutes rake 36 then actuates by its toothing the lifting of the minutes 25, which actuates the hammer 28, a number of times corresponding to the number of times corresponding to the number of times. minutes to ring, this after all the quarters have been sounded.
- the tooth of the toothing 70 in which the tooth 69 of the pawl 68 engages depends on the number of minutes to ring. The time elapsed between the end of the quarter bell and the start of the minute ring is therefore the same regardless of the number of minutes to ring.
- a device similar to the device 73, 76, 77, 79 (but with a number of risers 77 adapted) is used between the quarter ratchet 21 and the minute ratchet 22, or between the rake of the quarter and rake minutes 36, replacing the ratchet device 68 and toothing 70.
- the striking mechanism is compact in the plane of the watch.
- the penetration depths of the lifts 23, 24, 25, 26 in the corresponding teeth of the ratchets can be the same, which optimizes the actuation of the hammers 27, 28.
- the size of the striking mechanism in the plane of the watch is made particularly compact by the fact that, thanks to the gear ratio between each rake 34, 35, 36 and the corresponding pinion 31, 32, 33, a small angular displacement of the rake 34, 35, 36 causes a large angular displacement of the ratchet 20, 21, 22 corresponding.
- the angular clearance of the rakes 34, 35, 36 is thus smaller than that of the ratchet rakes of the state of the art (documents EP 1760554 and WO 2012/004224).
- the rakes 34, 35, 36 unlike the ratchets 20, 21, 22 and the ratchet rakes of the state of the art, are not necessarily coaxial provides greater freedom in the design of the mechanism.
- the clutch rocker 6 serves the dual function of engaging / disengaging the striking mechanism and, via a locking member (the spout 18) which is secured thereto. , to lock the ringer barrel 3 in the disengaged position.
- a locking member the spout 18
- the locking member is in one piece with the clutch rocker 6.
- the ratchets 20, 21, 22 could be in the form of rakes rather than wheels. Realizing the ratchets 20, 21, 22 in the form of wheels is nevertheless preferred in the present invention because it allows to give said ratchets sufficient rigidity to ensure good cooperation between the teeth of the ratchets and lifts.
- the striking mechanism comprises a device for preventing the striking of the bell when the energy accumulated in the striking barrel 3 is not sufficient to guarantee the return of the ratchets 20, 21, 22 and rakes 34, 35, 36 after taking information on the cams 41, 46, 51.
- This device comprises (see FIG. 16) a locking lever 84 held in the rest position against a stop 85 fixed to the frame 1 by a return spring 86. In its rest position, the locking lever 84 is out of the path followed by the pin 14 during the change of engaged / disengaged position of the clutch rocker 6. It does not interfere with the movements of the clutch rocker 6.
- the locking lever 84 can however be pivoted in a position shown in FIG.
- the member which controls the pivoting of the locking lever 84 is a power reserve display wheel 87.
- the power reserve display wheel 87 comprises an arcuate opening 88 which receives a pin 89 fixed to the frame 1.
- the aperture 88 and the pin 89 define two limit positions for the power reserve display wheel 87, namely a position substantially corresponding to a fully armed state of the spring of the ringer barrel 3 and a position substantially corresponding to a completely disarmed state of the spring of the ringer barrel 3.
- the power reserve display wheel 87 carries an indicator (not shown), such as a needle, indicating the power reserve of the striking mechanism on the dial of the watch.
- the power reserve display wheel 87 is driven by the output of a differential whose two inputs are the shaft of the ringer barrel 3 and the toothing of said cylinder.
- the power reserve display wheel 87 does not act on the locking lever 84 which remains in its rest position.
- the power reserve display wheel 87 is in an angular position such that a projecting portion 90 of this wheel 87 comes into contact. with the locking lever 84 and rotates against the action of its return spring 86 to bring it to its position where it prevents the pivoting of the clutch lever 6 to its disengaged position.
- the indicator carried by the power reserve display wheel 87 the user is informed that he must raise the ringer barrel 3. As soon as the ringer barrel 3 is sufficiently raised the projecting portion 90 moves away from the locking lever 84, allowing the latter to return to its rest position, out of the path of the pin 14.
- the striking mechanism comprises a device for preventing the bell from sounding when the watch is set.
- the rotation of the cams of the hours, quarters and minutes 41, 46, 51 caused by a time setting can cause damage in the striking mechanism if no device is provided to prevent the feelers 39, 44, 49 to come into contact with said cams during the time setting.
- the device used in the present invention comprises an actuable locking lever 91 by the zipper 92 of the time setting mechanism, which cooperates with the winding stem 5. When the winding stem 5 is in its pushed position the locking lever 91 is out of the way of the pin 14 carried by the rocker clutch 6 (FIG. 18).
- the striking mechanism comprises a device, shown in FIGS. 20 and 21, making it possible to raise in a simple manner both the ringer barrel 3 and the barrel of the movement, indicated by the reference numeral 93.
- This device is arranged so that, when the winding stem 5 is in its pushed position, a rotation of said rod in one direction (for example clockwise) raises the ringing barrel 3 and a rotation of said rod in the other direction (for example counterclockwise) rears the barrel 93 of the movement.
- This device comprises an input wheel 94 which can be driven in one direction or the other by the winding stem 5.
- the input wheel 94 meshes with a crown wheel 95 which itself meshes with a winding pinion 96 mounted around the winding stem 5 and driven via toothed crenellations by a sliding pinion 97 (visible in Figure 18) integral in rotation with the winding rod 5.
- the input wheel 94 is on each of its two faces at least one ratchet.
- the pawls 98 carried by the lower face of the input wheel 94 cooperate with a toothing.
- the ratchets 101 carried by the upper face of the input wheel 94 cooperate with a teeth with wolf teeth.
- a pinion 102 integral with a second output wheel 103.
- the first output wheel 100 is a winding wheel of the ringer barrel 3. It meshes with the ratchet 104 of the ringer barrel 3 via a reference 105.
- the second output wheel 103 is a winding wheel of the cylinder 93 of the movement. It meshes with the ratchet 106 of the barrel 93 of the movement via referrals 107, 108. Thanks to the catches 98, 101 the first and second output wheels 100, 103 rotate only in one direction, and the direction of rotation of the first output wheel 100 is opposed to that of the second output wheel 103.
- the input wheel 94 When the input wheel 94 is driven by the winding stem 5 in a first direction, it drives with its pawls 98 the pinion 99 and therefore the first output wheel 100 to raise the ringer barrel 3.
- this winding device barrels 3, 93 is very compact in the plane of the watch since the input wheel 94 (bidirectional) and the two output wheels 100, 103 (unidirectional) are coaxial.
- Figures 24 to 26 show a clutch device according to another embodiment.
- the clutch device included the clutch rocker 6 and the pinions 8, 9 carried by this rocker.
- the clutch device illustrated in Figures 24 to 26 comprises a rocker 1 10 and a differential gear 1 1 1 placed between the ringing barrel 3 and the ringing shaft 1 January.
- the differential gear 1 1 1 comprises (see FIG. 26), arranged in a coaxial manner, a sun gear 1 12 integral with a connecting wheel 1 13 which meshes with the striking barrel 3, a carrier 1 14 and a sun gear 1 15.
- the sun gear 1 12 constitutes the input of the differential 1 1 1. It comprises an internal toothing which meshes with at least one (preferably three) satellite 1 16 carried by the planet carrier 1 14.
- the sun gear 1 12 could be a pinion meshing with its peripheral teeth with the satellite or satellites 1 1 6.
- Each satellite 1 1 6 is coaxial and integral with a satellite 1 17 located on the other side of the satellite carrier 1 14.
- Each satellite 1 17 meshes with the sun gear 1 15. The latter, which constitutes the output of the differential 1 1 1, meshes, for example by means of a reference 1 18, with the pinion 10 of the ringing shaft 1 January.
- the rocker 1 10 pivots to a point 1 19 and is subjected to the action of a return spring 1 10a which tends to apply against a stop 1 10b.
- the rocker January 10 comprises, like the clutch rocker 6 of Figures 1 and 2 with its spout 18, a locking nose 120 to cooperate with the stopping star 19 secured to the wheel 2b of the gear train. ring 2 and thus block or unblock the ringer barrel 3.
- the rocker 1 10 carries a pin 121 to cooperate with the ringer trip lever 15 shown in Figures 3 and 4 or, alternatively, with a ring triggering member 122 which will be described later.
- the flip-flop 1 10 furthermore carries a locking pin 123 which, depending on the position of the flip-flop 1 10, is engaged in a peripheral toothing of the planet carrier 1 14 or is disengaged from this toothing. More precisely, in a first position, or engaged position, of the lever 1 10, the locking nose 120 does not block the ringer barrel 3 while the locking finger 123 engaged in the toothing of the planet carrier 1 14 blocks this latest.
- the ringing barrel 3 can therefore rotate and drive, via the connecting wheel 1 13, the input wheel 1 12 which, through its internal toothing and satellites 1 1 6- 1 17, rotates the sun gear 1 15 so the ringing shaft 1 1.
- the locking nose 120 blocks the ringer barrel 3 while the locking finger 123 does not block the satellite holder 1 14.
- the input wheel 1 12 is too. Since the planet carrier 1 14 is free to rotate, the satellites 1 1 6-1 17 can drive it by rolling on the internal toothing of the input wheel 1 12.
- the ringing shaft 1 1 is thus decoupled from the cylinder 3 and can turn under the action of the return springs 52, 53, 54 rakes hours, quarters and minutes 34, 35, 36 by turning the reference 1 18, the sun gear 1 15 and the door -satellite 1 14.
- the second configuration that is to say the one where the blocking finger 123 does not block the satellite holder 1 14 and where the locking nose 120 blocks the ringing barrel 3 corresponds to the information taking phase triggered by the operation of the ringing trip lever 15 or the ring triggering member 122 which releases the rocker 1 10 and its return spring 1 10a.
- the first configuration that is to say the one where the blocking finger 123 blocks the satellite holder 1 14 and where the locking nose 120 does not block the ringer barrel 3, corresponds to the ring phase consecutive to the taking information.
- the locking pin 123 is in the form of an insert attached to the rocker 1 10. However, alternatively, it could be in one piece with the rocker 1 10, as is preferably the locking nose 120.
- the ring triggering device 122 which, in a variant, replaces the ringing trip lever 15 illustrated in FIGS. 3 and 4, results from a decomposition of the lever 15 into two parts. More precisely, the bell triggering device 122 comprises two levers 124, 125 pivoting respectively at points 126, 127 and on which return springs 128, 129 respectively act tending to apply the levers 124, 125 against stops 130, 131.
- the lever 125 called the “control lever” is controlled by the tube 15a (see FIGS. 3 and 4) in the same way as was the 15.
- the lever 124 called the "trip lever" fulfills the function of the end part of the striking trip lever 15, that is to say that of cooperating with the pin 121 for hold the rocker 1 10 in its engaged position.
- the control lever 125 includes a retractable spout 132 which contacts a spout 133 of the trigger lever 124 when the control lever 125 is actuated, to pivot the trigger lever 124 against the action of its return spring 128 and thus release the lever 1 10.
- the spout 132 loses contact with the spout 133 and the trigger lever 124 therefore immediately returns to its initial position under the action of its spring In this way, even if the control lever 125 remains actuated (the user continues to press the push-button crown or the push-button), it can be ensured that the lever 1 10 is held securely in its position. engaged during the ringing phase after taking information.
- the retractable nature of the spout 132 allows the control lever 125 to return to its initial position despite the presence of the spout 133 on the trajectory of the spout 132. It goes without saying that such a bell triggering device 122 could be used with the spool. clutch device 6, 8, 9 shown in Figures 1 and 2.
- Figures 27 and 28 show a clutch device according to yet another embodiment.
- the clutch device illustrated in Figures 27 and 28 is vertical type. It comprises a rocker 135, a vertical clutch mobile 136 situated between the ringer barrel 3 and the ringer shaft 1 1, and a control member 137 acting on the vertical clutch mobile 136 and controlled itself by the rocker 135.
- the latch 135 carries a pin 138 and a locking nose 139 having the same function, respectively, as the pin 121 and the locking nose 120 illustrated in FIG. 24.
- the lever 135 also carries a stop finger 140 and a finger order 141.
- the flip-flop 135 is subjected to the action of a return spring 142 which tends to apply against a stop (not shown).
- the vertical clutch mobile 136 comprises, arranged coaxially, a first wheel 143 which meshes with the ringer barrel 3, a second wheel 144 which meshes with the pinion 10 of the ringer shaft 1 1, a third wheel 145 with a Breguet gear 145a, this third wheel 145 being fixed to the second wheel 144, and a fourth wheel 146 with Breguet teeth 146a, this fourth wheel 146 being integral in rotation, but free in axial translation, with respect to the first wheel 143.
- a spring 147 tends to apply the Breguet toothing 146a of the fourth wheel 146 against the Breguet toothing 145a of the third wheel 145 to rotationally fasten the first wheel 143 and the second wheel 144 and thus couple the ringer barrel 3 to the shaft ring 1 1.
- the control member 137 comprises a spring 148 and, fixed to the free end of the spring 148, a fork 149 whose two teeth 150 (only one of these teeth is visible in the drawing) can come symmetrically against a flange 151 of the fourth wheel 146, to axially move the fourth wheel 146 against the action of the spring 147, during a bending of the spring 148.
- the bending of the spring 148, and thus the axial displacement of the fourth wheel 146 are controlled by the control finger 141 of the latch 135 which acts on an inclined plane 152 of the fork 149.
- the control member 137 may be in one piece.
- the flip-flop 135 can assume a first position, corresponding to the position illustrated in FIGS. 27 and 28, and a second position (not shown).
- the control finger 141 leaves the fork 149 in the rest position where it does not touch the fourth wheel 146, and the locking nose 139 does not block the ringer barrel 3.
- This first position corresponds to the engaged state of the clutch device, which allows the ringing phase consecutive information taking to unfold.
- the control finger 141 cooperates with the inclined plane 1 52 to bend the spring 148 and the fourth wheel 146 is thus released from the Breguet toothing 145a of the third wheel 145 by the fork 149.
- the second wheel 144 is free to rotate relative to the first wheel 143, which is blocked by the action of the locking nose 1 39 on the star 1 9.
- This second position of the lever 1 35 corresponds to the disengaged state of the clutch device, allowing the information taking phase to unfold.
- Breguet teeth 145a, 146a The unidirectional nature of Breguet teeth 145a, 146a is not used in the present invention.
- the wolf-like shape of these teeth 145a, 146a facilitates the clutch, avoiding the risk of blockage that can cause tip-to-tip contact of the teeth of the wheels 145 and 146.
- the Breguet teeth 145a, 146a can be replaced. by conventional vertical teeth (bidirectional).
- the stop finger 140 of the rocker 1 35 is placed under the fourth wheel 146, as shown in Figure 28, when the rocker 1 35 is in its first position.
- This stop finger 140 prevents the fourth wheel 146 from losing contact with the third wheel 145, despite the action exerted by the spring 147, in the event of shock suffered by the watch.
- the rocker 1 35 serves three functions: blocking / unlocking the ringer barrel 3, control the clutch / clutch and prevent disengagement in case of shock.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission Devices (AREA)
- Mechanical Operated Clutches (AREA)
- Soil Working Implements (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14155756 | 2014-02-19 | ||
PCT/EP2015/053122 WO2015124509A1 (fr) | 2014-02-19 | 2015-02-13 | Mecanisme de sonnerie pour une piece d'horlogerie |
Publications (2)
Publication Number | Publication Date |
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EP3108306A1 true EP3108306A1 (fr) | 2016-12-28 |
EP3108306B1 EP3108306B1 (fr) | 2018-12-26 |
Family
ID=50114305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15705584.9A Active EP3108306B1 (fr) | 2014-02-19 | 2015-02-13 | Mecanisme de sonnerie pour une piece d'horlogerie |
Country Status (4)
Country | Link |
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EP (1) | EP3108306B1 (fr) |
JP (1) | JP6485779B2 (fr) |
CN (1) | CN106030420B (fr) |
WO (1) | WO2015124509A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3070542A1 (fr) * | 2015-03-18 | 2016-09-21 | Glashütter Uhrenbetrieb GmbH | Carillon à répétition doté d'engrenages de déclenchement et de remontage dédiés |
EP3435175A1 (fr) * | 2017-07-25 | 2019-01-30 | Blancpain SA | Sélecteur de mode de sonnerie et de mélodie pour montre ou pièce d'horlogerie |
CH714633A1 (fr) * | 2018-02-09 | 2019-08-15 | Van Cleef & Arpels SA | Pièce de bijouterie ou de joaillerie à animation. |
CN116954048A (zh) * | 2022-04-13 | 2023-10-27 | 天津海鸥表业集团有限公司 | 手表的自动报时结构 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH689337A5 (fr) * | 1996-09-03 | 1999-02-26 | Patek Philippe Sa | Pièce d'horlogerie à carillon. |
ES2307111T3 (es) * | 2005-03-31 | 2008-11-16 | Zenith International Sa | Pieza de relojeria provista de un mecanismo de repeticion de minutos. |
EP1760554A1 (fr) * | 2005-09-01 | 2007-03-07 | Montres Journe S.A. | Pièce d'horlogerie munie d'un mecanisme de sonnerie |
EP1925997B1 (fr) * | 2006-11-21 | 2013-02-27 | Manufacture Claret SA | Mécanisme de sonnerie |
EP1925995B1 (fr) * | 2006-11-21 | 2014-06-18 | Christophe Claret Engineering S.A. | Mécanisme de sonnerie |
EP2339413B1 (fr) * | 2009-12-22 | 2012-09-12 | The Swatch Group Research and Development Ltd. | Mouvement d'horlogerie muni d'une alarme vibrante |
CH703406B1 (fr) * | 2010-07-08 | 2015-04-30 | Complitime Sa | Pièce d'horlogerie comprenant un mécanisme de sonnerie. |
CH703615B1 (fr) * | 2010-08-18 | 2014-12-15 | Patek Philippe Sa Geneve | Pièce d'horlogerie munie d'un mécanisme de répétition ou de sonnerie et d'un mécanisme d'alarme. |
CH704624A2 (fr) * | 2011-03-08 | 2012-09-14 | Montres Breguet Sa | Mobile de délai et mécanisme limiteur de durée pour mécanisme horloger. |
-
2015
- 2015-02-13 WO PCT/EP2015/053122 patent/WO2015124509A1/fr active Application Filing
- 2015-02-13 CN CN201580009497.6A patent/CN106030420B/zh active Active
- 2015-02-13 EP EP15705584.9A patent/EP3108306B1/fr active Active
- 2015-02-13 JP JP2016529885A patent/JP6485779B2/ja active Active
Also Published As
Publication number | Publication date |
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CN106030420B (zh) | 2018-11-20 |
JP2017516976A (ja) | 2017-06-22 |
JP6485779B2 (ja) | 2019-03-20 |
WO2015124509A1 (fr) | 2015-08-27 |
EP3108306B1 (fr) | 2018-12-26 |
CN106030420A (zh) | 2016-10-12 |
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