Unfolding clasp for bracelet

Abstract

This unfolding clasp for a bracelet having a profiled plate (1) having two spaced-apart parallel branches (1a) and (1b) defining a space (1c) for the assembly, in a freely articulating manner, of at least one blade (2-3) having, on the side away from its articulating part, provisions for the articulated assembly of part of the bracelet, is remarkable in that the blade or blades (2-3) of the bracelet are equipped, close to the part receiving the bracelet, with two rotating rollers (6-7) and (8-9) placed coaxially with and protruding from each lateral side of the blade (2-3) in order to cooperate with the profiled rim (1d1-1d2) and (1e1-1e2) of an open recess (1d-1e) formed laterally in the thickness of each branch (1a) and (1b) for the purpose of creating, after folding down of the blade (2-3), a snap-fastening effect by rolling friction resulting from tensioning of the blade, said recess (1d-1e) being equipped with means (12-13) capable of providing the stop for part of the blade or blades (2-3) in the snap-fastened position.

Dependencies are inferred from the claim text.