Nut and panel assembly and method of forming same

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

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F16B 33/06 (2006.01) B62D 65/00 (2006.01) F16B 37/06 (2006.01)

Patent

CA 2091427

A nut and panel assembly useful for pierce, clinch and weld nuts used in automotive applications, wherein the nut bore must be masked or blocked during paint application, including electrodeposition coatings. A generally cylindrical polymeric plug or blocking member is press fitted into the nut bore preferably prior to attaching the nut to the metal panel. Following installation of the nut in the panel, the plug masks the nut bore during the later coating operation. The disclosed plug or blocking member includes an axial configured cavity and the plug may then be removed following coating by threading a bolt having an end protuberance configured to be received in the plug axial cavity into the nut bore. The plug is then retained on the bolt protuberance following removal from the threaded bore.

Un assemblage d'écrous et de panneaux utile pour les écrous à percer, les écrous à river pour cellules et les écrous à souder utilisés en mécanique automobile, où le trou percé doit être couvert ou obstrué pendant l'application de la peinture, y compris les enrobages par électrodéposition. Un bouchon ou freineur polymère généralement cylindrique est inséré dans le trou percé de préférence avant de fixer l'écrou au panneau de métal. Après avoir installé l'écrou dans le panneau, le bouchon cache le trou percé pendant la dernière opération d'enrobage. Le bouchon ou freineur comprend une cavité axiale configurée et peut alors être enlevé après l'enrobage en filetant un boulon dont l'extrémité protubérante configurée s'insère dans le trou percé par la cavité axiale du bouchon. Le bouchon est ensuite maintenu sur la protubérance du boulon après qu'on l'ait retiré du trou enfilé.

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