EP2109015A2 - Automatischer Aufzug - Google Patents

Automatischer Aufzug Download PDF

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Publication number
EP2109015A2
EP2109015A2 EP20090002311 EP09002311A EP2109015A2 EP 2109015 A2 EP2109015 A2 EP 2109015A2 EP 20090002311 EP20090002311 EP 20090002311 EP 09002311 A EP09002311 A EP 09002311A EP 2109015 A2 EP2109015 A2 EP 2109015A2
Authority
EP
European Patent Office
Prior art keywords
mobile
rotor
mechanism according
pivoted
shaft
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.)
Withdrawn
Application number
EP20090002311
Other languages
English (en)
French (fr)
Inventor
Patrick Lété
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.)
LES ARTISANS HORLOGERS SARL
Artisans Horlogers SARL
Original Assignee
LES ARTISANS HORLOGERS SARL
Artisans Horlogers SARL
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.)
Filing date
Publication date
Application filed by LES ARTISANS HORLOGERS SARL, Artisans Horlogers SARL filed Critical LES ARTISANS HORLOGERS SARL
Publication of EP2109015A2 publication Critical patent/EP2109015A2/de
Withdrawn legal-status Critical Current

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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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/18—Supports, suspensions or guide arrangements, for oscillating weights
    • G04B5/187—Bearing, guide arrangements or suspension allowing movement in more than one plane, e.g. there is more than one moving weight, or more than one plane in which the weight moves, and it can change place relative to the clockwork

Definitions

  • the present invention relates to automatic winding mechanisms especially for wristwatch movements.
  • the automatic winding mechanisms in the watch movements consist of an eccentric or unbalanced mass or flywheel pivoted about an axis, generally perpendicular to the movement plate, thus parallel to the switch of the wristwatch. Therefore, only the angular movements of the watch around the axis of its switch allow the winding mass to develop its maximum torque.
  • the movements of the wearer of a wristwatch are in all spatial orientations, it is necessary to oversize the mass, and therefore the volume of the winding mass so that it can go up the barrel even when wrist movement of the user in a direction other than perpendicular to the axis of the switch of the watch and for which only a component, the component perpendicular to the axis of rotation of the winding mass, is useful.
  • the object of the present invention is to provide an automatic winding mechanism, in particular for a clockwork movement, which transmits, via a winding gear, a maximum torque to the ratchet of the barrel whatever the movement, and its direction, imposed on the watch movement, so even if the movement is rotated about axes perpendicular to the axis of the switch.
  • the object of the present invention is therefore to provide an automatic winding mechanism whose output is higher thus reducing the weight, and therefore the size of the winding mechanism for the same winding of the barrel. This is important because especially in the movements where we want to avoid covering an entire face of it with the mass, the current microphones rotors do not always obtain a sufficient winding force.
  • the object of the present invention is to provide an automatic winding mechanism, in particular for a clockwork movement, tending to obviate the inefficiencies of the current automatic winding mechanisms.
  • the subject of the present invention is an automatic winding mechanism, especially for a watch movement of a wristwatch, characterized in that it comprises an unbalanced winding mass or rotor connected to the ratchet of a movement barrel by a kinematic connection comprising rotatably movable in at least two directions (AA, BB, CC) forming an angle therebetween.
  • the attached drawing illustrates schematically and by way of example two embodiments of the automatic winding mechanism, in particular for watch movement comprising a rotor and a kinematic connection connecting it to the ratchet of a barrel.
  • the figure 1 is an elevational view, partially in section of a first embodiment of the automatic winding mechanism.
  • the figure 2 is a partial view from above of the automatic winding mechanism illustrated in FIG. figure 1 .
  • the figure 3 is an elevational view, partially in section, of a second embodiment of the automatic winding mechanism.
  • the automatic winding mechanism according to the present invention is more particularly intended to equip a timepiece and in particular a wristwatch comprising a watch movement housed in a watch case.
  • the automatic winding mechanism is mounted in a watch movement, in particular on a plate 1 and a bridge 2 of this watch movement.
  • the barrel shaft 3 carrying the barrel ratchet 4 and around which the barrel cage 5 is pivoted, is pivoted between the plate 1 and a bridge 2 of the watch movement.
  • the tooth 6 of the cage barrel 5 meshes with the first mobile 7 of the power train of the watch movement.
  • the automatic winding mechanism comprises a rotor or mini-rotor 8 connected by a kinematic chain to the barrel ratchet 4, a kinematic chain which, as will be seen below, allows the rotor 8 to move along three axes forming angles with each other, these axes being preferably orthogonal to each other. In this way, whatever the movement of the watch movement or its plate in space, the rotor will always be active to drive the ratchet 4 of the barrel by said kinematic link with maximum efficiency.
  • This kinematic connection connecting the barrel ratchet 4 to the rotor 8 comprises in the illustrated example a first mobile 9,10 pivoted between the plate 1 and the bridge 2 having a wheel 9 meshing with the ratchet 4 and a wolf wheel 10 a Pellaton winder.
  • This wolf-toothed wheel 10 cooperates with the pawl 11 of the Pellaton winding mechanism, a ratchet concentrically pivoted to the wheel 12 of the Pellaton winding meshing with a second mobile 13, 14 pivoted between the plate 1 and the bridge 2 whose pinion 14 meshes with the wheel 12 Pellaton winding.
  • This winder Pellaton is in fact an inverter that allows whatever the direction of rotation of the second mobile 13,14,15 to rotate the ratchet 4 of the cylinder always in the same direction, the winding direction of the barrel.
  • the second mobile 13,14,15 comprises a conical gear 13 and the free end of its axis 15 carries a support 16.
  • the axis 15 of the second mobile 13,14 extends in the illustrated example perpendicular to the plane from deck 1 and deck 2.
  • this axis 15 of the second mobile 13,14 of the kinematic chain extends in a first direction AA perpendicular to the plate 1 of the watch movement.
  • This first direction AA could, in variants, not be perpendicular to the plane of the plate 1 but form with it any angle, the teeth of the second mobile 13,14 would be cut accordingly.
  • a shaft 17 is fixed rigidly on the support 16 and its axis extends in a second direction B-B forming an angle with the first direction A-A.
  • directions A-A and B-B are orthogonal to each other.
  • This shaft 17 serves as a pivot to a third mobile of the drive train.
  • This third mobile comprises a tubular hub 18, pivoted on the shaft 17, a first conical gear 19 meshing with the conical gear 13 of the second mobile 13,14 and a second conical gear 20.
  • the free end of the shaft 17 has a head 21 pierced with a bore 22 extending in a third direction C-C forming an angle with the first and second directions A-A and B-B.
  • the third direction C-C is perpendicular to the first and second directions A-A, B-B, but variants with different angles are possible.
  • a rotor axis 23 is pivoted in this bore 21 of the head of the shaft 17 and carries at each of its ends an unbalanced mass 8a, 8b constituting an automatic winding rotor.
  • the unbalanced or eccentric masses 8a, 8b are positioned relative to the rotor axis 23 so that their unbalance is located on the same side of this rotor axis 23 thus forming the winding rotor together.
  • the rotor shaft 23 still carries a conical gear 24 meshing with the second bevel gear 20 of the third movable 18,19,20 of the kinematic winding chain.
  • the kinematic chain connecting the rotor 8 to the barrel ratchet 4 comprises a reverser Pellaton winding type but other types of inverters can be used. In some cases you can even do without inverters and reassembly takes place only for a direction of rotation of the second mobile of the winding kinematic chain.
  • the main advantage of the winding mechanism described is the increase in yield, which allows a reduction in the weighted winding mass and the size of this winding mass.
  • the kinematic chain connecting the rotor 8 to the ratchet 4 of the watch movement cylinder comprises movable members rotated in three directions A-A; B-B; and C-C, forming angles with each other.
  • several mobile but at least the second mobile 13,14 of the kinematic chain, are rotated in a first direction AA preferably perpendicular to the plate 1 and the bridge 2.
  • the third mobile 18,19,20 is rotated in a second direction BB preferably perpendicular to the direction AA.
  • the rotor 8a, 8b, carrying the conical gear of the rotor 24 is the fourth mobile of the kinematic chain pivoted in a third direction C-C preferably perpendicular to the directions A-A and B-B.
  • the kinematic chain connecting the barrel 5 to the winding mass or rotor 8a, 8b comprises movable rotated in two directions forming an angle between them.
  • the ratchet 4 of the cylinder 5,6 meshes with a first mobile 9,10 pivoted between the plate 1 and the bridge of the watch movement.
  • the wheel 9 meshes with the ratchet 4 and the wolf wheel 10 of the Pellaton winding cooperates with the pawl 11 concentrically pivoted to the wheel 12 of the winding Pellaton which meshes with a second mobile 13,14,15 also rotated between the plate 1 and the bridge.
  • the support 16a is no longer carried by the axis 15 of the second mobile 13,14 but integral with the plate and its axis extends in a first direction AA forming an angle, preferably an angle with support plate 1 and bridge 2.
  • This support 16 carries a fixed shaft 17a extending in this first direction AA and its end comprises a head 21 pierced with a bore 22 extending in a second direction DD forming a angle with the first direction AA, preferably a right angle with this first direction AA.
  • a rotor axle 23 is pivoted in this bore 21 of the head of the shaft 17 and carries at each of its ends an unbalanced mass 8a, 8b constituting an automatic winding rotor.
  • the unbalanced or eccentric masses 8a, 8b are positioned relative to the rotor axis 23 so that their unbalance is located on the same side of this rotor axis 23 thus forming the winding rotor 8 together.
  • the rotor shaft 23 still carries a conical gear 24 meshing with a bevel gear 30 of a third wheel formed of the bevel gear 30, a hub 31 pivoted on the fixed shaft 17a and a second spur gear 32 meshing with the wheel 13 with the right teeth of the second wheel 13,14.
  • the rotor 8a, 8b is movable relative to the plate 1 of the movement along two directions AA and CC forming an angle between them and the first AA forms an angle with the plane of the plate 1.
  • the rotor 8a, 8b allows the winding of the barrel 5 for all movements that can be printed by the wearer of the watch to the watch movement platinum.
  • This second embodiment is simpler and less expensive than the first while allowing a reduction in weight and bulk compared to the conventional winding mechanism where the winding mass has only one degree of freedom .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP20090002311 2008-04-10 2009-02-19 Automatischer Aufzug Withdrawn EP2109015A2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH5552008 2008-04-10

Publications (1)

Publication Number Publication Date
EP2109015A2 true EP2109015A2 (de) 2009-10-14

Family

ID=40419035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090002311 Withdrawn EP2109015A2 (de) 2008-04-10 2009-02-19 Automatischer Aufzug

Country Status (1)

Country Link
EP (1) EP2109015A2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010142778A1 (fr) * 2009-06-10 2010-12-16 Olivier Schneider Mecanisme de remontage automatique pour mouvement horloger
CN114779600A (zh) * 2022-04-20 2022-07-22 湘潭大学 一种六工位防磁自适应夹持机械表自动上链装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010142778A1 (fr) * 2009-06-10 2010-12-16 Olivier Schneider Mecanisme de remontage automatique pour mouvement horloger
CN114779600A (zh) * 2022-04-20 2022-07-22 湘潭大学 一种六工位防磁自适应夹持机械表自动上链装置
CN114779600B (zh) * 2022-04-20 2023-08-08 湘潭大学 一种六工位防磁自适应夹持机械表自动上链装置

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