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US 8,800,408 B2Granted
Tool system for the extraction of watch bezels
AssigneeOmega SA
InventorOlivier Ermenault
Life of this patent
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Abstract
The invention includes a tool system for extracting watch bezels, including a holding body arranged for cooperating with an expansion and retraction mechanism for operating a bell-chuck which is arranged to rest on the periphery of a bezel mounted on the middle part of a watch. The tool system includes thrust means, coaxially mounted inside the bell-chuck and arranged to rest on a crystal driven into the middle part, to exert on the crystal a sufficient thrust force to cause a relative displacement of the bell-chuck relative to the crystal.
Claims12
A tool system for the extraction of a watch bezel, including:
- (a) a holding body;
- (b) a bell-chuck, arranged to rest on the periphery of a bezel mounted on a middle part of a watch;
- (c) an expansion mechanism or a retraction mechanism, operable on the bell-chuck, wherein the holding body is arranged to cooperate with the expansion mechanism or the retraction mechanism;
- and
- (d) thrust means, mounted coaxially inside the bell-chuck and arranged to rest on a crystal driven into the middle part, wherein the thrust means exerts a sufficient thrust force on the crystal to displace the bell-chuck relative to the crystal,
- wherein the thrust means includes a support member that is arranged to press on a middle part of the crystal and includes a recess towards the centre thereof, so as to rest on a circle of larger diameter of the crystal in order to best distribute the thrust force,
- wherein the holding body includes an internal thread that cooperates with the threaded art of an arbour, wherein the support member is mounted at a first end of the arbour and wherein a second end of the arbour has an operating handle for exerting the thrust force on the crystal.
4 more elements
Dependencies are inferred from the claim text.