Coupling between two bodies comprising an elastically...

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

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F16L 19/065 (2006.01) F16L 37/092 (2006.01)

Patent

CA 2614128

The invention relates to a coupling between a first body (5) with a hole, and a cylindrical end zone of a second body (1) by means of tongues (8) which, when said end zone is arranged, scrape over the surface thereof, whereby the backward movement is blocked. The coupling has the feature that the tongues form part of an interrupted ring (3); the tongues are the windings of a helix; the tongues are inclined in the direction of arrangement; the end zone can displace along the helix during arrangement with elastic deformation of the ring; additional pressure forces occur between the tongues and the end zone when a force in opposite direction to the insertion direction is exerted between the ring and the second body; whereby, when the second body rotates relative to the first body, the helix is followed so that an axial movement also occurs and the end zone of the first body can be removed.

L~invention concerne un accouplement entre un premier corps (5) avec un trou et une zone d~extrémité cylindrique d~un deuxième corps (1) au moyen de languettes (8) qui, quand ladite zone d~extrémités est agencée, raclent sur sa surface, ce qui pour effet de bloquer le mouvement vers l~arrière. L~accouplement se caractérise en cela que les languettes font partie d~un anneau sans interruption (3) ; les languettes sont l~enroulement d~une hélice ; les languettes sont inclinées dans le sens d~agencement ; la zone d~extrémité peut se déplacer le long de l~hélice pendant l~agencement avec la déformation de l~anneau ; des forces de pression supplémentaires se produisent entre les languettes et la zone d~extrémité quand une force dans le sens opposé au sens d~insertion est exercée entre l~anneau et le deuxième corps ; ainsi, quand le deuxième corps tourne par rapport au premier corps, l~hélice est suivie pour qu~un mouvement axial ait aussi lieu et la zone d~extrémité du premier corps puisse être retirée.

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