F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 7/12 (2006.01)
Patent
CA 2685476
A tensioner for tensioning flexible drives employs an extruded shaft which can provide a relatively complex cross sectional shape to provide anti-rotation features to inhibit rotation of a pivot bushing located on the shaft. The pivot bushing has a frustoconical outer shape, as does the pivot surface of the hub of the tensioner arm which pivots on the pivot bushing. A dampening spring urges the pivot bushing towards the tensioner arm's pivot surface, providing for wear compensation and for dampening. The degree of dampening which is generated between the pivot bushing and the tensioner hub can be selected in a variety of manners: by varying the spring force; by changing the effective contact surface area between the pivot bushing and pivot surface; and/or by changing the coefficient of friction between the pivot bushing and the pivot surface.
L'invention concerne un tendeur pour tendre des transmissions flexibles. Ledit tendeur emploie un arbre extrudé qui peut fournir une forme de section transversale relativement complexe et présenter des caractéristiques anti-rotation prévenant la rotation d'une douille de pivot située sur l'arbre. La forme externe de la douille de pivot est frustroconique, comme la surface de pivot du moyeu du bras de tendeur qui pivote sur la douille de pivot. Un ressort d'amortissement pousse la douille de pivot vers la surface de pivot du bras de tendeur, assurant une compensation de l'usure et un amortissement. Le degré d'amortissement généré entre la douille de pivot et le moyeu de tendeur peut être sélectionné de plusieurs manières : par variation de la force d'amortissement ; par changement de la surface de contact effective entre la douille de pivot et la surface de pivot ; et/ou par changement du coefficient de frottement entre la douille de pivot et la surface de pivot.
Dell James W.
Mevissen Hubertus G.
Litens Automotive Partnership
Porat Alex
LandOfFree
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