Pivot joint assembly

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

Patent

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Details

F16C 11/04 (2006.01) F16B 39/24 (2006.01)

Patent

CA 2062050

A pivot joint for a rotary lever has a spacer extending axially from a foundation such as an engine motor component. The spacer includes a cylindrical ferrule. A rotary lever and a belleville spring, both having a bore of a size to fit over the outside of the ferrule in a sliding fit, are slid over the ferrule. The belleville spring has an uncompressed cone height to thickness ratio of 1.4 to 1.8 and is compressed by at least 50% of the uncompressed cone height. The joint also includes a means for fastening the spacer to the foundation and a means for securing the lever and belleville spring onto the ferrule. The securing means bears against the free end of the ferrule to compress the spring to provide a substantially uniform operating torque from one assembly to another.

Joint d'articulation de levier rotatif comportant un dispositif d'espacement dans le prolongement de l'axe d'une base telle qu'une partie de moteur. Ce dispositif d'espacement comporte une bague. On fait glisser sur cette bague un levier rotatif et un ressort Belleville présentant tous deux un alésage dont la taille permet l'ajustement par glissement sur la partie extérieure de la bague. Ce ressort Belleville est d'une hauteur de cône non comprimée d'épaisseur relative comprise entre 1,4 et 1,8 et peut être comprimé d'au moins 50 % de cette hauteur. L'articulation est également munie d'un dispositif de fixation de la douille sur l'assise et d'un dispositif permettant d'assujettir le levier et le ressort Belleville sur la bague. Ce dispositif de fixation s'appuie contre l'extrémité libre de la bague et comprime le ressort pour établir un couple moteur à peu près uniforme entre l'un et l'autre ensemble.

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