Timepiece component with a non-magnetic shaft-like portion made of ceramic
AssigneeBlancpain SA
InventorsAlain Delizee, Cedric Reymond
Life of this patent
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Abstract
A timepiece component including a shaft-like portion including at least one pivot about a pivot axis, wherein at least the constituent material of this shaft-like portion is a ceramic or similar non-magnetic type material, the shaft-like portion includes a plurality of recesses evenly arranged or regularly distributed about the pivot axis, and has its centre of inertia on the pivot axis, and the shaft-like portion includes a collar forming its largest diameter with respect to the pivot axis, which collar includes a parting line of the shaft-like portion, which parting line is substantially perpendicular to the pivot axis, the recesses pass right through the collar, and at least one recess contains an injection point for the material.
Claims18
A timepiece component comprising:
- a shaft-like portion including at least one pivot about a pivot axis,
- wherein said shaft-like portion comprises a collar forming a largest diameter of said shaft-like portion with respect to said pivot axis, the collar including a parting line of said shaft-like portion, the parting line being substantially perpendicular to said pivot axis,
- wherein a constituent material of said shaft-like portion is a ceramic,
- wherein said shaft-like portion includes a plurality of recesses evenly arranged around said pivot axis, the plurality of recesses passing through said collar, and the plurality of recesses having a center of inertia on said pivot axis, and
- wherein at least one recess of the plurality of recesses contains an injection point for said material.
Dependencies are inferred from the claim text.