Plastic fastener for threaded blind aperture

F - Mech Eng,Light,Heat,Weapons – 16 – B

Patent

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Details

F16B 13/06 (2006.01) F16B 19/10 (2006.01) F16B 33/00 (2006.01)

Patent

CA 2222387

The fastener, which is typically made of thermoformed or similar plastic, includes a shank portion at least two parallel fingers which further include a proximal end and a distal end. The proximal end of the fingers is integral with a base portion and the distal end of the fingers is integral with bridge elements which attach to a wedge element. A driving pin is attached to the base portion and is aligned with a gap formed between the at least two parallel fingers. The parallel fingers further include lateral serrated portions and radially oriented stabilizing fins. Upon impact to the driving pin when the fastener is placed into a blind threaded aperture, the wedge portion forces apart the distal ends of the parallel fingers, while the driving pin forces apart the proximal ends of the parallel fingers thereby driving the serrated portions of the fingers against the threads of the blind threaded aperture.

L'invention porte sur un dispositif de fixation généralement fait d'un plastique thermoformé ou d'un plastique semblable. Le dispositif comporte une queue présentant au moins deux doigts parallèles qui comprennent une extrémité proximale et une extrémité distale. L'extrémité proximale des doigts est solidaire d'une base, et l'extrémité distale est solidaire des entretoises qui sont reliées à un coin. Une tige d'entraînement est fixée à la base et est alignée avec un espace formé entre les doigts parallèles qui incluent des parties latérales dentelées et des ailettes radiales de stabilisation. Lorsque le dispositif de fixation est inséré dans une ouverture borgne filetée et que l'utilisateur frappe sur la tige d'entraînement, le coin sépare de force les extrémités distales des doigts parallèles tandis que la tige sépare de force leurs extrémités proximales. Les parties dentelées des doigts sont ainsi poussées contre les filets de l'ouverture borgne filetée.

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