Protection of a structural component of a timepiece
AssigneeETA SA Manufacture Horlogere Suisse
InventorsIvan VILLAR, Laurent KAELIN
Life of this patent
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Abstract
Protective device (1) for the protection of a structural component, notably a main plate (2), of a timepiece movement (3) on a receiving surface comprised in this structural component (2) for receiving in abutment a complementary bearing surface (51) of a wheel set (5). This protective device (1) includes at least one insert (6) including a slide surface (7) having a higher surface hardness than that of this structural component (2), this insert (6) being assembled on or in this structural component (2) so that this slide surface (7) thereof coincides with this receiving surface.
Claims19
A protective insert for the protection of a housing forming a surface of revolution generated by a given profile in a structural component of a timepiece having a given surface hardness, said insert including at least one slide surface having a higher surface hardness than said given surface hardness, said insert including at least one machined portion of revolution about an axis of revolution whose profile is complementary to said given profile, wherein said insert includes at least one complementary, first, flat indexing surface perpendicular to said axis of revolution, and at least one complementary, second, flat indexing surface parallel to said axis of revolution, and in that at least said complementary first indexing surface forms a said slide surface having a higher surface hardness than said given surface hardness.
Dependencies are inferred from the claim text.