ASSEMBLY ELEMENT INCLUDING TWO SERIES OF ELASTIC STRUCTURES AND TIMEPIECE FITTED WITH THE SAME

摘要

Assembly element ( 18 ) made in a plate of brittle material, including an aperture ( 32 ) provided for the axial insertion of an arbour ( 26 ). The inner wall ( 33 ) of the aperture ( 32 ) includes elastic structures ( 34 ), which are etched into the plate and which each include at least one support surface ( 36 ) for gripping the arbour ( 26 ) radially in order to secure the assembly element ( 18 ) relative to the arbour ( 26 ). The assembly element ( 18 ) includes a first series (S 1 ) of elastic structures ( 34 ) etched in a top layer ( 39 ) of the plate and a second series (S 2 ) of elastic structures ( 34 ) etched in a bottom layer ( 41 ) of the plate. A timepiece may be fitted with this assembly element.