US 5,771,543 AGranted

Length adjustment device for a folding arm type bracelet clasp

AssigneeMontres Rolex S.A.

InventorsVincent Froidevaux, Alberto Jaussi

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Abstract

This adjustment device comprises an adjustment link (6) provided with two parallel articulation axes (5,7) transverse to a bracelet, each serving to connect this adjustment link to two elements of the bracelet forming an endless attachment. This adjustment link is able to pivot about one of its axes (5) to that their respective positions are inverted, these two positions thus corresponding to two determined lengths of the bracelet. In the shorter adjusted position, the adjustment link (6) elastically engages in a recess (8c) of one of the articulated elements (8) of the adjustment link (6) by pressing this element (8) in the direction of the arrow (F.sub.7) so that the adjusted position is maintained as long as the adjustment link (6) has not moved out of the recess (8c) in which it is elastically held by the locking means (8d) of the recess (8c).

Claims20

Dependent claims

A device for adjusting a length of a bracelet having a clasp made of comprising folding arms arranged between two ends of the bracelet to form therewith an endless attachment whose length can vary between two values, one where said folding arms are folded, the other where said folding arms are unfolded, said device comprising an adjustment link having two articulation axes which are substantially parallel transverse to the attachment, said two articulation axes being associated respectively with two element of said attachment to allow, by pivoting of said adjustment link about one of said articulation axes, inversion of respective positions of said articulation axes relative to one another along said attachment to define two determined adjusted lengths of said attachment,

wherein one of said two elements of said attachment comprises locking means arranged in a trajectory described by a portion of said adjustment link when said adjustment link pivots from a position corresponding to a longer adjusted length to another position corresponding to a shorter adjusted length of said attachment, to come into engagement with said portion of said adjustment link in said another position corresponding to the shorter adjusted length of said attachment.

Dependencies are inferred from the claim text.