Pre-assembled manifold fastener system and method therefor

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

Patent

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Details

F16B 43/00 (2006.01) F02F 1/24 (2006.01) F02M 35/04 (2006.01) F16B 41/00 (2006.01)

Patent

CA 2240383

A pre-assembled workpiece fastenable to a mounting surface of a second workpiece, and in one application a pre-assembled plastic component fastenable to a metal automotive engine component. The pre-assembled workpiece includes an opening extending therethrough between an outer surface and a mounting surface thereof. A sleeve member is retainably disposed in the opening through the pre-assembled workpiece, and a fastener having a threaded shank portion and a head is retainably disposed through the sleeve member. The fastener is axially and laterally positionable relative to the pre-assembled workpiece, whereby the pre-assembled workpiece is mountable and alignable on the mounting surface of the second workpiece without interference from the fastener. The sleeve member includes a resilient first substantially radial flange member, whereby the sleeve member is axially positionable relative to the opening through the pre-assembled workpiece upon fastening the pre-assembled workpiece to the second workpiece to compensate for misalignment tolerance and thermal expansion of the pre-assembled workpiece.

Cette invention concerne une pièce pré-assemblée à fixer sur une autre pièce et, dans une application, un élément en plastique pré-assemblé à fixer sur un élément métallique de moteur automobile. La pièce pré-assemblée présente un trou percé de part en part de la pièce, soit de la face supérieure à la face de montage. Un manchon est inséré dans le trou et une pièce de fixation comportant une tige partiellement filetée et une tête est inséré dans le manchon. La pièce de fixation est réglable axialement et latéralement par rapport à la pièce, de sorte que celle-ci peut être placée sur la pièce à laquelle elle doit être fixée sans que la pièce de fixation ne gêne. Le manchon comporte une collerette radiale élastique grâce à laquelle il peut être réglé axialement dans le trou de la pièce pré-assemblée lorsque celle-ci est fixée à la deuxième pièce pour compenser le désalignement entre les pièces et l'expansion thermique de la pièce pré-assemblée.

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