Clockwork movement, has eccentric being arranged such that eccentric adjusts center distance between escapement pinion and seconds wheel when eccentric is turned around axle of Archimedes or optimized Archimedes spiral

摘要

#CMT# #/CMT# The movement (30) has a module i.e. escapement platform (36) provided with a mobile i.e. escapement pinion (18), gearing with another mobile i.e. seconds wheel (32), that is pivoted on a plate (4), where the module is mounted on the plate. A positioning unit positions the module on the plate, where the unit is formed by an eccentric (40), and circumference (42) of the eccentric defines Archimedes/optimized Archimedes spiral on major portion. The eccentric is arranged such that the eccentric adjusts a center distance (L) between mobiles when eccentric is turned around an axle (46) of spiral. #CMT# : #/CMT# An independent claim is also included for a method for adjusting a center distance between clockwork mobiles. #CMT#USE : #/CMT# Clockwork movement. #CMT#ADVANTAGE : #/CMT# The eccentric is arranged such that the eccentric adjusts the center distance between the mobiles when the eccentric is turned around the axle of the Archimedes or optimized Archimedes spiral corresponding to a given translation of the mobile with respect to the other mobile from a particular position in which the teeth of the module are penetrated to maximum teeth of the seconds mobile so as to avoid manufacturing tolerances. The eccentric allows determined withdrawal of the teeth to optimize the relative position of the teeth of the two mobiles. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a partial schematic top view of a clock movement with an escapement platform in a final position of an assembly. L : Center distance 4 : Plate 18 : Escapement pinion 30 : Clockwork movement 32 : Seconds wheel 36 : Escapement platform 40 : Eccentric 42 : Circumference of eccentric 46 : Axle.