Fastener
AssigneeLisi Automotive Rapid
InventorWilliam Olivier
Life of this patent
Estimating the term…
Abstract
The invention relates mainly to a fastening system (1) comprising a fastening part (2) and an arming part (11), the fastening system (1) can be actuated between a fitting position around the stud (34) wherein the arming part (11) holds four tabs (7, 9) of a fastening part (2) in the stressed position thereof, and a position of tensioned fastening to the stud (34) wherein the arming part (11) is connected to the fastening part (2) when the four tabs (7, 9) are in the free position.
Claims15
A system for fastening to a threaded stud protruding from a vehicle frame, comprising:
- a) a fastening part comprising:
- i) a base with a hole for receiving a threaded stud,
- ii) two opposite claws each comprising a free end for cooperating with the threaded stud, the free end of the two opposite claws being opposite each other on both sides of the hole,
- iii) two tension tabs protruding from two opposite second edges of the base distinct from first edges, the two tension tabs being elastically deformable between a free position wherein the base is not flat and a stressed position wherein the base is flat;
- b) an arming part of the fastening part comprising:
- i) a hole for receiving the threaded stud,
- ii) means of locking the two tension tabs of the fastening part in a stressed position;
- and
- the system can be actuated between a fitting position around the threaded stud wherein the arming part holds the two tension tabs of the fastening part in the stressed position thereof, and a position of tensioned fastening to the threaded stud.
A method of fitting a panel against a base with at least one fastening system to a threaded stud protruding from said base, the method comprising:
- fitting the panel against the base of a fastening part, the threaded stud extending through a hole in the panel, the fastening part including:
- two claws opposite each other on both sides of the hole in the panel, two tension tabs protruding from two opposite second edges of the base, the tension tabs being elastically deformable between a free position wherein the base is not flat and a stressed position wherein the base is flat;
- and
- an arming part having a hole for receiving the threaded stud and a housing for locking the tension tabs;
- fitting the at least one fastening system around the threaded stud, the tension tabs being in the stressed position and the base being flat;
- translation of the fastening system into the stressed position thereof along the threaded stud until the base is brought into contact with the panel;
- moving in translation the arming part towards the panel with respect to the fastening part in contact abutment to the panel, the tension tabs being in the stressed position thereof;
- and
- concomitant release of the tension tabs and actuation of the fastening part toward the free position thereof of fastening around the threaded stud, during which each free end of the two claws engage into a thread of the threaded stud and during which the base moves from the flat position thereof to the not flat position by exerting a stress against the panel directed perpendicular to said base.
Dependencies are inferred from the claim text.