Nivarox-Far S.a.

Montres Breguet S.a.

Raymond Gabus

Marco Verardo

Alain Zaugg

Thierry Conus

Jean-Luc Bazin

Andrés Cabezas Jurin

Pierre-André Bühler

Frédéric Vaucher

Roger Lambert

The part is made from a plate () made of a brittle material, such as glass, quartz or silicon and includes at least one aperture () for driving in a shaft (). This aperture is characterized in that it includes alternately rigidifying and positioning zones () and resilient deformation zones (). Application to securing a shaft onto the moving parts of a timepiece movement.

Micro-mechanical part with a shaped aperture for assembly on a shaft

The collet is formed by a metal band () whose inner contour () delimits the recesses () for driving the collet onto a balance staff () and whose outer contour () includes a function point () between the collet and the balance spring () located at the end of an arm () at a distance R from the centreof the staff () greater than that of any other point () of the outer contour (). It is characterised in that the inner contour () includes a discrete number of points of contact () with the staff () distributed along identical or different angular apertures &#x3b1; and in that width 'I' of the band () varies such that the compression forces of the contact points () on the staff () do not substantially alter the distance R after driving in, leading to a friction torque allowing angular orientation of the collet on the staff () and not introducing any unbalance.

Collet without deformation of the fixation radius of the balance-spring and manufacturing method of the same

The anti-trip device is for a detent escapement mounted on a wristwatch. It includes a finger fixed to the arm of the balance, two columns between which the finger can pass, said columns being secured to the balance bridge, and a locking arm fixed to the outer coil of the balance spring, said locking arm being able to be inserted between said columns and said finger to prevent the balance from rotating beyond an angle exceeding its normal operating angle. The locking arm is a clamp hooked onto the outer coil of the balance spring.

Antitripping device for watch-escapement

Growing community of inventors

Le Locle, Switzerland

Raymond Gabus