Bimaterial anti-shock system for timepieces
AssigneeThe Swatch Group Research and Development Ltd
InventorsJean-Jacques BORN, Jean-Claude MARTIN
Life of this patent
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Abstract
A shock absorber bearing for an arbor of a timepiece wheel. The arbor includes a pivot-shank, the bearing includes a support including a housing arranged to receive a suspended pivot mechanism, and the pivot mechanism is arranged to absorb, at least in part, any shocks experienced by the timepiece wheel.
Claims13
1-10. (canceled)
A shock absorber bearing for an arbor of a timepiece mobile part, the arbor including a pivot-shank, the bearing comprising:
- a support including a housing arranged to receive a suspended pivot means, the pivot means is arranged to absorb, at least in part, any shocks experienced by the timepiece wheel,
- wherein the pivot means is made of a metallic material and includes a recess in which is inserted an insert made of synthetic material and with which the pivot-shank cooperates.
A method for fabrication of a shock absorber bearing for an arbor of a timepiece mobile part, the arbor including a pivot-shank and a pivot, the bearing including a support provided with a housing arranged to receive a suspended pivot means, the method comprising:
- a) taking the support and the pivot means including a recess and then placing the pivot means inside the housing in the support;
- b) taking the arbor and the insert including a hole for insertion of the pivot therein;
- c) placing the insert on the arbor so that the arbor pivot is inserted inside the hole in the insert;
- d) mounting the shock absorber bearing by manipulating the arbor so that the insert mounted on the arbor penetrates the recess.
A method for fabrication of a shock absorber bearing for an arbour of a timepiece mobile part, the arbor including a pivot-shank and a pivot, the bearing including a support provided with a housing arranged to receive a suspended pivot means, the method comprising:
- a) taking the support and the pivot means including a recess and then placing the pivot means inside the housing in the support;
- b) taking the arbor and over moulding the pivot with a material to form an insert;
- c) mounting the shock absorber bearing by manipulating the arbor so that the insert on the arbor penetrates the recess.
Dependencies are inferred from the claim text.