Self-tapping fastener and method for attaching weatherseals

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

Patent

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Details

F16B 25/10 (2006.01) B60J 10/00 (2006.01) F16B 5/12 (2006.01) F16B 5/06 (2006.01)

Patent

CA 2440862

A self-tapping fastener or fastening peg secures a weatherseal to a mounting surface of an automotive vehicle. A pointed, conical nose pierces the weatherseal to form an opening. In the preferred embodiment, the fastening peg is rotated at a first velocity as it is axially advanced toward the weatherseal to create an opening. The fastening peg is further axially advanced and rotated at a second velocity to advance a first flange through the pierced opening, thereby securing the fastening peg to the weatherseal. The weatherseal is then secured to a vehicle mounting surface by advancing a locking assembly through a pre-formed opening in the mounting surface.

L'invention concerne un élément de fixation autotaraudeur ou un taquet de fixation autotaraudeur fixant une bande d'étanchéité sur une surface de montage d'un véhicule automobile. Un nez pointu et conique perce la bande d'étanchéité de manière à former une ouverture. Dans le mode de réalisation préféré, le taquet de fixation est soumis à une rotation à une première vitesse pendant qu'il est avancé de façon axiale en direction de la bande d'étanchéité, de manière à créer une ouverture. Le taquet de fixation est ensuite avancé de façon axiale et soumis à une rotation à une seconde vitesse, de manière à avancer un premier bord à travers l'ouverture percée, fixant ainsi le taquet de fixation sur la bande d'étanchéité. La bande d'étanchéité est ensuite fixée sur une surface de montage d'un véhicule par avancement d'un ensemble de verrouillage à travers une ouverture préformée dans la surface de montage.

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