Ball joint link and method of producing same

Details Ball joint link and method of producing same Ball joint link and method of producing same

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 11/06 (2006.01) B29C 45/14 (2006.01)

Patent

CA 2201142

A ball joint link (10) includes a ball stud (18), a ball cap (36) and a strengthening element (26) that are all insert molded in a thermoplastic body. The strengthening element (26) is disposed around the ball stud (18) and includes a first portion (28) which receives the ball (22) of the ball stud (18) and a second portion (32) which receives the stud (20) of the ball stud (18). The strengthening element (26) is securely anchored in the body, and the second portion (32) of the strengthening element (26) resists pull out forces tending to remove the ball stud (18) from the ball joint link (10). The ball cap (36) snaps in place on the ball (22) and is substantially completely embedded within the body. Insert molding methods for forming the ball joint link (10) are disclosed.

La présente invention concerne une liaison à rotule (10) comprenant une queue de rotule (18) sphérique, une coiffe (36) de rotule et une pièce de renfort (26) qui sont toutes prisonnières par moulage dans un corps thermoplastique. La pièce de renfort (26), disposée autour de la queue de rotule (18) sphérique, se compose d'une première partie (28) recevant la tête (22) de la queue de rotule (18) sphérique et d'une seconde partie (32) qui reçoit la queue (20) de la queue de rotule (18) sphérique. La pièce de renfort (26) est fixée à demeure dans le corps, et la seconde partie (32) de la pièce de renfort (26) résiste aux forces d'extraction tendant à chasser la queue de rotule (18) sphérique de l'articulation à rotule (10). La coiffe (36) de rotule, qui s'engage en force autour de la tête (22), est sensiblement enserrée dans le corps. L'invention concerne également des procédés de moulage prisonnier permettant de réaliser la liaison à rotule (10).

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