Safety belt fastening device including automatic post-collision release for a vehicle passenger

摘要

The metal clip (12) of the belt (14) is fastened to a movable element (5) by a retention member (20). The element (5) slides on a rod (1) fixed to the vehicle and which has a spherical portion (1d) situated opposite an annular rubber lining (8) carried by the movable element (5). When a high tensile force is exerted on the belt (14), the movable element (5) is displaced counter to a return spring (7) and the sphere (1d) passes through the lining (8) with friction. When the tensile force ceases, the spring (7) causes the return of the movable element (5) which is slowed down by the passage of the sphere (1d) through the lining (8). As soon as the sphere (1d) has passed through this lining (8), the movable element (5) is freed and the return spring (7) then displaces it instantaneously towards the left. An articulated piece (24) carried by a catch (9) integral with the rod (1) acts on a projection (20a) of the retention member (20) in order to displace the latter axially and thus to free the metal clip (12) of the belt (14). IMAGE