Timepiece assembly with centring and attachment of a plate relative to a middle case.

摘要

#CMT# #/CMT# The assembly (1) has a bottom plate (2), and a middle part (4) that is arranged to cooperate in abutment with the bottom plate. A securing unit (5) is utilized for securing the bottom plate to the middle part. The securing unit includes a screw (6) that is arranged to cooperate with a housing (7) comprising an axis (D0) in a screwed-in position. The screw is completely screwed into the housing, and a set of shoulders (8, 9) cooperates with a flange (10) on two surfaces or points. #CMT# : #/CMT# An independent claim is also included for a jewelry or clock element. #CMT#USE : #/CMT# Time piece assembly for use in a jewelry or clock element (all claimed) e.g. wrist watch, fob, or pendant watch. #CMT#ADVANTAGE : #/CMT# The screw is completely screwed into the housing, and the set of shoulders cooperates with the flange on two surfaces or points, thus allowing centering of the bottom plate even in the event of shocks. The securing unit is stable over time, and is not sensitive to shocks. The middle part is angularly positioned in a precise manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a partial cross-sectional view of a flange on a bottom plate, and a middle part of a timepiece assembly with a screw for holding and securing the flange that includes a bearing surface. D0 : Axis 1 : Time piece assembly 2 : Bottom plate 4 : Middle part 5 : Securing unit 6 : Screw 7 : Housing 8, 9 : Shoulders 10 : Flange.