Anti-cross threading fastener

Details Anti-cross threading fastener Anti-cross threading fastener

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 33/02 (2006.01) F16B 35/04 (2006.01) F16B 5/02 (2006.01)

Patent

CA 2226709

A self-aligning, anti-cross threading fastener (10) having first and/or second members with lead threads (24) having a curved surface feature from the minor diameter to the major diameter which allows the surface of the lead threads to cam over the mating threads of the other member (22) and thereby aligning collinearly the longitudinal axis of the two members. The initial presentation angle of the two threaded members may be restricted and therefore enhanced by providing a protruding diameter feature (18).

L'invention porte sur un élément de fixation fileté (10) à autoalignement et empêchant l'engagement de travers comportant un premier et/ou un deuxième élément munis de filets de plomb (24) et présentant une surface incurvée du petit diamètre inférieur au grand diamètre supérieur, ce qui permet à la surface des filets de plomb de s'emboîter dans les filets correspondants de l'autre élément (22) et par là de s'aligner sur l'axe longitudinal des deux éléments. L'angle initial de présentation des deux éléments filetés peut être réduit et par là agrandi en créant une excroissance (18) du diamètre.

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