EP3783444A1 - Uhrwerkmechanismus, der eine blockiervorrichtung umfasst - Google Patents

Uhrwerkmechanismus, der eine blockiervorrichtung umfasst Download PDF

Info

Publication number: EP3783444A1
Authority: EP; European Patent Office
Prior art keywords: locking; stop; stop wheel; spout; mechanism according
Prior art date: 2019-08-20
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

Application number

EP19192436.4A

Other languages

English (en)

French (fr)

Other versions

EP3783444B1 (de

Inventor

Pascal Perron

David Chabloz

Lukas Gisler

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Patek Philippe SA Geneve

Original Assignee

Patek Philippe SA Geneve

Priority date (The priority date 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 date listed.)

2019-08-20

Filing date

2019-08-20

Publication date

2021-02-24

2019-08-20 Application filed by Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve

2019-08-20 Priority to EP19192436.4A priority Critical patent/EP3783444B1/de

2021-02-24 Publication of EP3783444A1 publication Critical patent/EP3783444A1/de

2022-03-09 Application granted granted Critical

2022-03-09 Publication of EP3783444B1 publication Critical patent/EP3783444B1/de

Status Active legal-status Critical Current

2039-08-20 Anticipated expiration legal-status Critical

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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
- G04B15/00—Escapements
- G04B15/10—Escapements with constant impulses for the regulating mechanism
- 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
- G04B1/00—Driving mechanisms
- G04B1/10—Driving mechanisms with mainspring
- G04B1/22—Compensation of changes in the motive power of the mainspring
- G04B1/225—Compensation of changes in the motive power of the mainspring with the aid of an interposed power-accumulator (secondary spring) which is always tensioned
- 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
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
- G04B13/025—Wheels; Pinions; Spindles; Pivots with elastic means between the toothing and the hub of a toothed wheel

Definitions

the present invention relates to a horological mechanism provided with a cog and a device for blocking said cog, said blocking device comprising a stop mobile arranged to be able to be driven in rotation by the cog and formed of a wheel. stopper and a pinion, said stopper wheel being arranged to carry a locking nose, and a locking member movable between a first stop position in which the locking member cooperates with the locking nose to stop the stop mobile in order to immobilize the gear train and a second position in which the locking member does not cooperate with the stop mobile.
Such a mechanism is used for example in a watch movement comprising an equalizer winder or a so-called “constant force” device, that is to say a watch movement comprising between its driving member and its escapement an intermediate spring which is periodically armed by the engine and which delivers its energy to the exhaust.
Such a watch movement is described in the patent EP 3,401,739 of the plaintiff.
the watch movement is arranged to operate according to a cycle comprising a first phase during which the blocking member blocks the stop piece, placed at the end of the gear, to immobilize said gear, allowing the intermediate spring to relax, and a second phase triggered by the release of the gear train by the locking member during which the intermediate spring is reset and the locking member is returned to a position in which it can again immobilize the gear train.
the stopping mobile performs a 360 ° rotation before being stopped again by the blocking member.
the present invention aims to remedy these drawbacks by proposing a device for blocking a rotating mobile device allowing said mobile to be stopped in a safe manner without having a violent impact between the locking device and said mobile.
the present invention relates to a watch mechanism provided with a cog and a device for blocking said cog, said blocking device comprising a stop mobile arranged to be able to be rotated by the cog and formed of a stop wheel and a pinion, said stop wheel being arranged to carry a locking spout, and a locking member movable between a first stop position in which the locking member cooperates with the spout of blocking to stop the stop mobile in order to immobilize the gear train and a second position in which the blocking member does not cooperate with the stop mobile.
the locking device comprises an elastic member carried by the stop wheel of the stop mobile and arranged to connect the blocking spout to said stop wheel and to allow, upon impact between the 'locking member and the locking spout, a damping of said shock comprising at least one elastic part.
the elastic member is arranged to allow, during an impact between the locking member and the locking nose, a damping of said shock comprising an elastic part but also an energy dissipative part, preferably by friction.
the locking device according to the invention makes it possible to reduce the maximum force of an impact between the locking device and the rotating mobile when the rotating mobile is locked and to increase the duration of this shock, so that the problems associated with a violent impact between the locking device and said moving body (namely in particular wear, but also deformation and the torque of resistance to rotation) are eliminated.
the present invention also relates to a timepiece, such as a watch or a pendulum, comprising a watch mechanism as defined above.
the watch mechanism 1 comprises a driving member 2, typically constituted by a barrel, a gear 3 rotated by the driving member 2 and a locking device 4 of the gear train 3.
the gear train 3 comprises, in the example illustrated, a center mobile 3a meshing with the driving member 2, a medium mobile 3b meshing with the center mobile 3a, a second mobile 3c meshing with the average mobile 3b, a first intermediate mobile 3d meshing with the second mobile 3c, a second intermediate mobile 3rd meshing with the first intermediate mobile 3d.
Each of the mobile units 3a to 3e is formed of a toothed wheel and a coaxial and integral pinion.
the locking device 4 comprises a stop wheel 6 arranged to be driven in rotation by the gear train 3, when the gear train 3 is itself driven by the motor member 2. More specifically, the drive of the stop wheel set. 6 is made by meshing with the second intermediate mobile 3rd of said gear 3.
the stop mobile 6 is formed of a pinion 6a, arranged to mesh with the toothed wheel of the second intermediate mobile 3rd, and of a stop wheel (non-toothed) 6b coaxial with pinion 6a, and comprising in particular a body 6c coaxial and integral with said pinion 6a.
the stop wheel 6b is arranged to carry a blocking spout 8, shown in figures 1 and 2 in a simplified manner and which will be described more specifically below.
the locking device 4 also comprises a locking member 10 movable between a first stop position in which the locking member 10 cooperates with the locking beak 8 of the stop mobile 6 to stop said stop mobile 6 in order to immobilize the gear train 3 and a second position in which the locking member 10 has moved away and can therefore no longer cooperate with the stop mobile 6, allowing the release of said stop mobile 6 so that the gear train 3 is free to rotate under the action of the motor member 2.
the locking member 10 is presented in a manner advantageous in the form of a lever carrying a beak or nose 10a arranged to cooperate with the locking beak 8 of the stop piece 6.
the mechanism 1 also comprises a control member 12, such as a rocker, arranged to control the positioning of the locking member 10 in its first stop position as shown in FIG. figure 1 or in its second position, when the blocking member 10 is released from the stop piece 6, as shown in figure 2 .
a control member 12 such as a rocker
the mechanism 1 can be arranged to operate with a constant force device or an equality winder (not shown). Such a mechanism 1 is described in the application EP 3,401,739 by the Applicant, to which reference may be made for the detailed description of the elements relating to the constant force device and to its operation.
the horological mechanism according to the invention can be used in a watch or a clock, in particular a table clock.
the mechanism 1 can also be used in any other watch mechanism comprising a stopping system, and more particularly an instant stopping system generating violent shocks between the parts when the mechanism is blocked.
the mechanism could also be used, for example, in a striking mechanism, or in any horological mechanism comprising a motor train capable of operating in ON / OFF mode, such as a calendar, a date, a perpetual calendar.
the locking device 4 comprises an elastic member 14 carried by the stop wheel 6b of the stop mobile 6 and arranged to mechanically connect the blocking spout 8 to said stop wheel 6b and to allow , during an impact between the locking member 10 and the locking spout 8, a damping of said shock comprising at least one elastic part provided by the compression of the elastic member 14.
the elastic member 14 is carried by the body 6c of the wheel 6b of the stop piece 6 and has for this purpose a first end which is integral with said body 6c and a second end which is integral, directly or indirectly, of the locking spout 8, as will be described in more detail below.
the arrangement of the locking device 4 according to the invention allows uniquely elastic damping of the shocks between the locking member 10 and the locking spout 8.
the stop wheel 6b is formed only by the body 6c secured to the pinion 6a, itself secured to its shaft 16 pivotally mounted on the frame of the mechanism.
the elastic member 14 comprises a first end 14a which is integral with said body 6c and a second end 14b, free, integral with the locking spout 8.
the elastic member 14 and the locking spout 8 are formed integrally with the body 6c.
the body 6c of the stop wheel 6b comprises at least one cutout 18 arranged to form, in the remaining body 6c, the elastic member 14 as well as the locking spout 8, integrally, the second end 14b of the elastic member 14 being arranged to form the locking spout 8.
the body 6c may comprise a single cutout 18 made near the circular peripheral edge of the body 6c so as to form an elastic member 14 and an outer locking spout 8, at the periphery of said body 6c.
the remaining body 6c then has an ovoid shape, coaxial with the pinion 6a.
the body 6c of circular shape may comprise two cutouts 18 made in the inner surface of the body 6c, substantially concentric, so as to form an organ elastic 14 essentially internal, only its second end 14b protruding from the body 6c to form the locking spout 8 arranged to be able to cooperate with the nose 10a of the locking member 10.
the cutout (s) 18 is (are) preferably of substantially circular or at least rounded shape, in order to release a tongue of fine material, substantially curved, and of sufficient length to present the desired elastic functions and to constitute the 'elastic member 14.
the second end of the elastic member 14b is widened to form the locking spout 8.
the body 6c forming the stop wheel 6b is made for example of a metal alloy, such as steel, CuBe, Maillechort, brass, based on Ni, NiP, Nivaflex®, Phynox®, etc., of metallic glass. or silicon, so that the elastic member can have the required elastic properties.
a metal alloy such as steel, CuBe, Maillechort, brass, based on Ni, NiP, Nivaflex®, Phynox®, etc., of metallic glass. or silicon, so that the elastic member can have the required elastic properties.
the elastic member 14 and the locking spout 8 are attached to the body 6c.
the elastic member 14 is in the form of a spring arranged on the body 6c of the stop wheel 6b and the first end 14a of which is fixedly fixed to said body 6c and the second end 14b is free and is integral with the locking spout 8.
the second free end 14b of the resilient member 14 directly carries the locking spout 8 which can be integral with said second end 14b or attached, said locking spout 8 being arranged to cooperate with the nose 10a of the locking member 10. .
the arrangement of the locking device 4 according to the invention and of its elastic member 14 allows, upon impact between the locking member 10 and the locking spout 8, to have a damping of said shock comprising not only an elastic part as described above but also an energy dissipative part, advantageously obtained by friction.
the stop wheel 6b is formed only by the body 6c integral with the pinion 6a.
the elastic member 14 is in the form of a spring arranged on the body 6c of the stop wheel 6b and the first end 14a of which is fixedly fixed on said body 6c and the second end 14b is free and is fixed to the spout lock 8.
the body 6c carries a pin 20 and the second free end 14b of the elastic member 14 comprises an intermediate elongated housing 22 itself carrying the locking spout 8 which can be integral with said housing 20 or attached.
the housing 22 can be formed for example by a loop formed at the second end 14b of the elastic member 14.
the pin 20 can circulate in said housing 22 allowing guidance of the locking spout 8 when it is moved under the effect. from an impact with the nose 10a of the locking member 10.
the spring 14 ensures the elastic part of the damping during an impact between the locking member 10 and the locking spout 8, the friction of the pin 20 in the housing 22 constituting its dissipative part.
the stop wheel 6b comprises a body 6c integral with the pinion 6a and its shaft 16, as well as a circular board 24, coaxial and mounted to rotate freely with respect to said body 6c around the shaft 16.
the board 24 is integral with the blocking spout 8 arranged at its outer periphery in order to be able to cooperate with the nose 10a of the blocking member 10.
the blocking spout 8 is preferably integral with the board 24 but it can also be attached.
the resilient member 14 is arranged to join in rotation the body 6c and the board 24 when the locking member 10 is not in its first stop position, the gear then being free to rotate and to drive the movable stop 6, by driving together the body 6c and the board 24, and to allow a relative movement between the body 6c and the board 24 during an impact between the locking member 10 and the locking spout 8 when the blocking member 10 is passed through its first stop position, so the shock absorption comprises an elastic part and a part dissipating energy by friction.
the board 24 and the body 6c are configured to have respectively surfaces in contact with each other, arranged to generate friction during the relative movement between the body 6c and the board 24 following the impact between the locking member. 10 and the locking spout 8.
the board 24 and the body 6c are arranged to have a voluntarily large pivot diameter in order to increase friction and dissipate a maximum of energy during an impact. between the locking member 10 and the locking spout 8.
the elastic member 14 is in the form of a spring disposed in a circular manner on the body 6c of the stop wheel 6b, coaxially with the shaft 16.
the elastic member 14 which comprises a first end 14a which is fixed integrally to the body 6c of the stop wheel 6b, and a second end 14b which is fixed integrally to the board 24 by means of a fastening element 26, such as a nail mounted through the second end of the elastic member 14 and fixed in an orifice 27 provided on the board 24.
the fixing element 26 is positioned in the board 24 in the immediate vicinity and radially to the locking spout 8.
the body 6c comprises an oblong slot 28 in which said fixing element 26 can circulate during a relative movement between the body 6c and the board 24 during an impact between the locking member 10 and the spout. blocking 8.
the oblong slot 28 is circular in shape concentric with the body 6c and the board 24.
the elastic member is pre-armed and the length of the slot 28 is chosen so that its front end 28a (cf. . figure 12 ) constitutes a stop for the fixing element 26 in order to guarantee the correct positioning of the board 24 and therefore of the locking nose 8 when the body 6c and the board 24 are integrally linked in rotation.
the length of the slot 28 is also chosen so that its rear end 28b (cf. figure 12 ) constitutes a stop for the fastener 26 to ensure that the spring does not plasticize when its maximum stroke is reached.
the body 6c of the stop wheel 6b has on its peripheral periphery at least one radial elastic arm 30 (for example three as shown) arranged to be in contact with the board 24 so as to generate additional friction.
Each resilient arm 30 ends in a contact element 30a arranged to be in contact with a corresponding surface provided on the board 24.
the torque resulting from the action of the elastic member 14 must be greater than the torque resulting from the friction of the elastic arms 30 on the board 24 in order to guarantee the correct positioning of said board 24 and therefore of the locking nose 8 when the body 6c and the board 24 are integrally linked in rotation.
the elastic member 14, when it is attached, as in the variants of figures 6 to 12 is for example made of steel, NiP, or silicon, the body 6c of the stop wheel being for example made of CuBe and the plate 24 of steel.
the operation of the watch mechanism is as follows: with reference to the figure 11 , when the locking device 4 is in its second position, the locking member 10 and its nose 10a are moved away from the stop mobile 6 so that the gear train 3 is released. Under the action of the motor member 2, the various mobile units 3a to 3e of the gear train 3 are driven in rotation, the mobile device 3e rotating the pinion 6a of the stop piece 6 in the clockwise direction.
the rotation of the pinion 6a causes the integral rotation of all the elements of the stop wheel 6b in the clockwise direction, the body 6c being integral with the pinion 6a and carrying the elastic member 14, and the board, in the variants where it is present, being connected in rotation to the body 6c by the elastic member 14.
the damping of said shock comprises an elastic part, provided by the bending of the spring, thus a portion dissipating energy by friction of the board 24 on the body 6c, said board 24 having become detached from the body 6c and moving relatively to said body 6c, the second end 14b of the elastic member being able to move in braid 28.
the damping of the shock between the locking nose 8 and the nose 10a of the locking member 10 is only of the elastic type.
the locking device of the invention by using an elastic member integrated (monolithic or on-board) to the stop moving body and not to the locking member, allows said locking member to remain rigid, which guarantees the reliability of the locking. rotating cog.
the locking device of the invention makes it possible to reduce the maximum force between the locking nose of the stop piece and the nose of the locking member and to increase the duration of the impact.
the energy of the impact is no longer dissipated mainly between the blocking member and the blocking spout, which resulted in rapid and significant wear of said blocking spout, but the majority of the energy is dissipated by friction between the board and the body of the stop wheel, with a first elastic damping part at the moment of impact.
the present invention makes it possible to eliminate all the problems associated with violent impacts, such as premature wear of the locking nose, but also deformation and the rotational withstand torque.

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Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Electromechanical Clocks (AREA)
Lock And Its Accessories (AREA)

EP19192436.4A 2019-08-20 2019-08-20 Uhrwerkmechanismus, der eine blockiervorrichtung umfasst Active EP3783444B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP19192436.4A EP3783444B1 (de)	2019-08-20	2019-08-20	Uhrwerkmechanismus, der eine blockiervorrichtung umfasst

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP19192436.4A EP3783444B1 (de)	2019-08-20	2019-08-20	Uhrwerkmechanismus, der eine blockiervorrichtung umfasst

Publications (2)

Publication Number	Publication Date
EP3783444A1 true EP3783444A1 (de)	2021-02-24
EP3783444B1 EP3783444B1 (de)	2022-03-09

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ID=67659388

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19192436.4A Active EP3783444B1 (de)	2019-08-20	2019-08-20	Uhrwerkmechanismus, der eine blockiervorrichtung umfasst

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EP (1)	EP3783444B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1586961A2 (de) *	2004-04-13	2005-10-19	Pierre Kunz SA	Uhr mit schnell umschaltendenden ewigen Kalender
US20090067296A1 (en) *	2007-09-07	2009-03-12	Lange Uhren Gmbh	Timepiece
CH707181A2 (fr) *	2012-11-14	2014-05-15	Patek Philippe Sa Geneve	Dispositif horloger, notamment un dispositif d'affichage sautant.
EP3401739A1 (de)	2017-05-08	2018-11-14	Patek Philippe SA Genève	Uhrwerk, das eine konstantkraftvorrichtung umfasst

2019
- 2019-08-20 EP EP19192436.4A patent/EP3783444B1/de active Active

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1586961A2 (de) *	2004-04-13	2005-10-19	Pierre Kunz SA	Uhr mit schnell umschaltendenden ewigen Kalender
US20090067296A1 (en) *	2007-09-07	2009-03-12	Lange Uhren Gmbh	Timepiece
CH707181A2 (fr) *	2012-11-14	2014-05-15	Patek Philippe Sa Geneve	Dispositif horloger, notamment un dispositif d'affichage sautant.
EP3401739A1 (de)	2017-05-08	2018-11-14	Patek Philippe SA Genève	Uhrwerk, das eine konstantkraftvorrichtung umfasst

Also Published As

Publication number	Publication date
EP3783444B1 (de)	2022-03-09

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EP3612896A1 (de)	2020-02-26	Verriegelungsvorrichtung für eine uhr
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EP2096504B1 (de)	2011-11-16	Mechanismus zur Anzeige der toten Sekunden
EP3783444B1 (de)	2022-03-09	Uhrwerkmechanismus, der eine blockiervorrichtung umfasst
EP3401739B1 (de)	2019-09-25	Uhrwerk, das eine konstantkraftvorrichtung umfasst
EP1960846B1 (de)	2012-10-17	Uhrwerk
EP3874331B1 (de)	2022-09-21	Oszillierendes gewicht mit variabler geometrie für einen uhrwerkmechanismus
EP3770694B1 (de)	2021-12-08	Anschlagkäfig für uhr mit zwei elastischen anschlagelementen
EP3486735B1 (de)	2020-09-30	Uhrwerksmechanismus zur nullrückstellung der sekunde mit schneckennocken
EP3714336B1 (de)	2023-08-30	Halterung eines mobilgeräts mit einer anzeigescheibe
EP4310603A1 (de)	2024-01-24	Uhrwerk
EP1343057A2 (de)	2003-09-10	Mechanische Uhr
WO2024013346A1 (fr)	2024-01-18	Mecanisme pour la mesure d'un temps pour mouvement horloger, notamment mecanisme de chronographe
CH712013B1 (fr)	2019-10-15	Mécanisme horloger à force constante.
CH717664B1 (fr)	2023-11-15	Pièce d'horlogerie comprenant un dispositif de commande étanche.
EP4250019A1 (de)	2023-09-27	Uhr-oszillator für ein ultraflaches uhrwerk
CH714615A2 (fr)	2019-07-31	Mécanisme de transmission d'une force d'armage, mouvement et pièce d'horlogerie mécanique.
EP0255712A1 (de)	1988-02-10	Gangwerke für elektronische Uhr mit Anzeige durch Zeigern

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