Eta Sa Manufacture Horlogere Suisse

Montres Breguet S.a.

Omega Sa

Compagnie Des Montres Longines, Francillon S.a.

Montres Brequet Sa

The Swatch Group Research and Development Ltd

Nivarox-far S.a.

Andrés Cabezas Jurin

Jean-Luc Helfer

Marc Stranczl

Thierry Conus

Alain Zaugg

Pierre Cusin

Davide Sarchi

Marco Verardo

Dominique Lechot

Thierry Hessler

Ivan Villar

Alphonse Bron

Arthur Queval

Emmanuel Graf

Xavier Tinguely

David Richard

Olivier Mahler

Nicolas Georges Hayek

Christian Poffet

Igor Saglini

Raymond Gabus

Kaspar Truempy

Jacques Jacot

Patrick Gasser

Frédéric Kohler

Maxence Perret-Gentil

Kaspar Trümpy

The oscillating weight for a self-winding watch mechanism is made by molding a plastic material charged with heavy metal particles. Moreover, the plastic material is also charged with fibers, wherein said fibers form between 1.5% and 7% of the total weight of the charged plastic material, and the density of the charged plastic material is greater than 8.

Oscillating weight

An assembly including a member made of a first material, which is axially driven into a circular aperture of a part made of a second material that is brittle, using an intermediate part made of a third material and mounted between the member and the part is disclosed. The intermediate part is a continuous cylinder including a hole for receiving the member so that the intermediate part absorbs radially and in a uniform manner, at least part of the axial driving force of the member. The part includes pierced holes forming elastic deformation units distributed around the circular aperture thereof for absorbing any of the radial force not absorbed by the intermediate part, so as to secure the assembly in a non-destructive manner for the part.

Assembly of a part that is brittle

The invention concerns a escapement lever () for the escapement mechanism of a timepiece movement, including at least one fork delimiting a notch () which includes horns () arranged for cooperating with a balance. Said fork notch () includes, in at least one said horn (), a slot () and/or a chamber (), wherein said slot () and/or chamber () is arranged to confer elasticity on the corresponding horn, which softens the shock at each impulse, by absorbing part of the impact energy, and then returning it subsequent to said impact.

Wear and shock resistant escapement lever for a timepiece movement

The invention relates to a thermocompensated mechanical resonator including a strip whose core, which is of polygonal section, includes single crystal silicon. According to the invention, one or a number of faces of the core has a coating for making the resonator less sensitive to temperature variations. The invention concerns the field of timepieces.

Thermocompensated mechanical resonator

The invention concerns an escapement () for a timepiece comprising an anchor () articulated on a stem () and co-operating with an escapement mobile () articulated on an axis (), said mobile comprising a plurality of teeth () uniformly spaced around said mobile, said anchor including an entry pallet () and an exit pallet () arranged to receive alternately an impulse from one of the teeth borne by the mobile and for acting as rest plane for said tooth. The invention is characterized in that the escapement mobile () comprises first and second integral and coaxial wheels () including each the same number of teeth (), in that the entry and exit pallets () co-operate respectively with the first and second wheels () and in that the peripheral radius (R) of the first wheel () is greater than the peripheral radius (R) of the second wheel ().

High-performance lever escapement

The timepiece escapement includes first () and second () impulse pallet stones secured to the balance () directly cooperating with the teeth of the escape wheel set () and a brake lever () periodically driven by the balance, the brake lever being provided with first () and second () locking pallet stones arranged for cooperating with the teeth of the escape wheel set ().

Direct impulse escapement for timepiece

The escapement includes an escape wheel set (), a balance roller () carrying an impulse pin () and a first impulse pallet stone (). It further includes a pallet assembly () fitted with a second impulse pallet stone () and first and second locking pallet stone (). The wheel set () includes at least one escape wheel fitted with teeth () that mesh directly with the teeth () of the first wheel of a gear train (), the teeth () of the wheel () cooperating with the impulse pallet stones and locking pallet stones.

Lever escapement for a timepiece

Timepiece including a two-directional correction mechanism for a device displaying a time related quantity, the display device being actuated by a control lever () itself controlled by a cam (), on which the control lever () abuts, the timepiece being characterized in that it includes a correction device () activated by a control stem () which, in the display device correction phase, via a return lever (), moves the control lever () out of the path of the cam () on which said control lever () normally abuts in the normal operating phase of the timepiece ().

Timepiece including a mechanism for correcting a device displaying a time related quantity

The escapement includes first () and second () escape wheels each driven by independent gear trains and barrels. The system includes a brake lever () cooperating with an impulse pin () of the roller () and with the escape wheels via locking pallet stones (). The roller carries pallet stones () for receiving impulses from the escape wheels. When the wheels are locked, the brake lever occupies a centred position relative to said wheels. Means () for re-engaging the locking pallet stones in the toothing of the wheels are provided to ensure proper operation of the system.

Escapement including two escape wheels

The escapement includes two distinct escape wheel sets (), a roller () including a first impulse pallet stone () cooperating with the first wheel set () and a third impulse pallet stone () cooperating with the second wheel set (). An anchor piece () articulated on a pivot () cooperates with an impulse pin () via a fork () fitted to the anchor piece. This anchor piece carries second () and fourth () impulse pallet stones respectively cooperating with the first () and second () wheel sets. The same anchor piece carries first () and second () locking pallet stones cooperating with the second wheel set ().

Anchor escapement including two escape wheel sets

The lever escapement includes at least one escape wheel (). The pallet assembly () is fitted with locking pallet stones () and a first impulse pallet stone () cooperating with the teeth of the wheel (). The pallet assembly () drives an auxiliary wheel set () carrying a second impulse pallet stone () cooperating with the teeth of the wheel ().

The tangential impulse escapement includes a lever device () including a lever () driving a roller () and a ring () surrounding an escapement wheel set (), said ring being fitted with pallet-stones () for cooperating with the teeth () of said wheel set, in order, alternately, to lock the latter then import an impulse to said roller. The escapement wheel set includes at least first () and second () coaxial secured wheels. The pallet pallet-stones () of the ring cooperate with the teeth () of the first wheel () with the exception of one (), which is arranged for cooperating with the teeth of the second wheel ().

Tangential impulse escapement

The anti-trip device for a timepiece escapement essentially includes a sprung balance (), this device preventing the angular extension of said balance beyond a normal angle of rotation. The device is characterized in that the arbour () fitted to the balance () is provided with a pinion () meshing with means () preventing said balance from rotating beyond said normal angle of rotation, whatever the direction of said rotation.

Anti-trip device for timepiece escapement

The escapement includes a large rollercarrying an impulse pallet stonesurmounted by a first finger-pieceand a small rollerin which a notchis made. A blocking member carries, on the one hand, a devicefor locking the escape wheeland on the other hand, a second finger-piecearranged for cooperating with the first finger-piecethe blocking member also including a followerending in a beakwhich acts on the small roller and particularly with notchwhich is made therein. The first and second finger-piecesandare respectively rigidly secured to the table roller and the blocking member.

Detent escapement for timepiece

The invention concerns a detent escapement for a timepiece including an escape wheel fitted with teeth, a balance onto whose staff there is secured at least one rollerincluding an impulse pallet-stone and in the circular periphery of which a notch is made, and a blocking member in the form of a lever hinged on a pin, said blocking member carrying means for locking the escape wheel, a control finger-piece and a follower ending in a beak arranged for cooperating with the notch of said roller, characterized in that said roller further includes a safety finger-piece arranged for cooperating with the teeth of the escape wheel and locking the latter when the impulse pallet-stone is accidentally unlocked from the toothing of the escape wheel.

Growing community of inventors

Yverdon-les-Bains, Switzerland

Andrés Cabezas Jurin