Timepiece assembly wherein a bottom plate is centred and secured relative to a middle part
AssigneeETA SA Manufacture Horlogere Suisse
InventorsOlivier Mertenat, Baptist Wyssbrod
Life of this patent
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AssigneeETA SA Manufacture Horlogere Suisse
InventorsOlivier Mertenat, Baptist Wyssbrod
Estimating the term…
Timepiece assembly (1) comprising a middle part (4) cooperating in abutment with a bottom plate (2) and a screw (6) for securing (5) this bottom plate (2) to this middle part (4), cooperating with an axis (D0) housing (7) of this plate (2), to press a flange (10) onto a first shoulder (8) of this plate (2) in proximity and on a second shoulder (9) of this middle part (4), and this first shoulder (8) is conical or spherical and/or this second shoulder (9) which is conical or spherical, cooperates with this flange (10) on at least two surfaces or points, in an assembled position wherein this plate (2) and this middle part (4) are assembled to each other and in the position wherein this screw (6) is completely screwed into this housing (7).
A timepiece assembly including a bottom plate, a middle part arranged to cooperate in abutment with said bottom plate, and a means of securing said bottom plate to said middle part, said securing means including at least one screw, each screw of the at least one screw arranged to cooperate in the screwed-in position with a respective axis housing disposed in said bottom plate, to indirectly immobilize said middle part relative to said bottom plate via a flange specific to said screw, each said flange being arranged to transmit the tightening force of said screw by abutting both on a first, conical or spherical shoulder comprised in said bottom plate in proximity to each said housing, and on a second, conical or spherical shoulder comprised in said middle part in proximity to each said housing, said assembly being wherein, in an assembled position wherein said bottom plate and said middle part are assembled to each other and the position wherein said screw is completely screwed into said housing, said first shoulder and/or said second shoulder cooperates with said flange on at most two surfaces or points.
Dependencies are inferred from the claim text.