Coupling assembly with retention mechanism

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

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Details

F16L 15/08 (2006.01) F16B 39/28 (2006.01) F16L 19/00 (2006.01)

Patent

CA 2472858

A coupling assembly includes a female fitting assembly comprising a tube body having a nut that is axially and rotatably movable relative to the tube body, and a generally U-shape spring fixedly connected to the nut. The spring has a pair of laterally spaced arms that straddle the tube body when the nut is inserted over the tube body and spring arm end portions that are engageable with serrations on opposite sides of the tube body. The spring arm end portions are shaped to provide more resistance to turning of the nut in the loosening/back- off direction when the nut is fully torqued on a male fitting assembly than during tightening of the nut on the male fitting assembly.

Ensemble d'accouplement comprenant un raccord femelle comportant une enveloppe de tube munie d'un écrou qui peut être déplacé par rotation sur le plan axial par rapport au tube, ainsi qu'un ressort généralement en forme de U qui est solidaire de l'écrou. Le ressort comporte une paire de bras espacés latéralement qui chevauchent l'enveloppe du tube lorsque l'écrou est posé sur cette dernière, ainsi que des bouts de bras qui peuvent s'engager avec des dentelures sur les côtés opposés de l'enveloppe du tube. Les extrémités des bras du ressort sont formées de façon à assurer une plus grande résistance au pivotement de l'écrou dans la direction de desserrage/dépose lorsque l'écrou est complètement serré sur un raccordement mâle que lors du serrage dudit raccordement mâle.

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