Title: Automatic clasp for wristwatch strap
Application Number: 03816453 Application Date: 2003.07.11
Publication Number: 1668222 Publication Date: 2005.09.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A44C5/24,A44C27/00
Applicant(s) Name: Chatelain Sa G. Address:
Inventor(s) Name: Grossiord Claude, Bohrer Jean-Louis
Attorney & Agent: yu quanbeng
Abstract:
     The invention relates to a clasp and a production method thereof. The inventive clasp comprises at least one main element (1) and at least one element (3) which pivots in relation to said main element. The clasp is characterised in that each of the aforementioned elements (1, 3) comprises two longitudinal arms which are rolled up to form a hinge (7, 15). Moreover, at least one of the ends of one of the elements (1, 3) comprises a flexion spring (11) which can rest against the other element (3, 1) for the elastic support thereof and each arm (5, 13) of the main element (1) and the pivoting element (3) is provided with at least one longitudinal stiffening rib (20, 22).
Time: 8