F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 7/12 (2006.01) F16F 1/14 (2006.01)
Patent
CA 2674565
A tensioner comprising a base (20), a pivot arm (30), a pulley (90) journalled to the pivot arm, a torsion spring (10) engaged between the base and the pivot arm, the torsion spring biasing the pivot arm, the torsion spring comprising a cross-sectional form having a major axis (Z-Z) and a minor axis (X-X), the major axis having a length (h) greater than a minor axis length (b), the torsion spring comprising planar portions (15,16) which are substantially parallel with the major axis, and the major axis oriented in a direction that extends substantially radially and normally from a torsion spring winding axis (Y-Y).
L'invention concerne un tendeur qui comporte une base (20), un bras de pivot (30), une poulie (90) tourillonnée au bras de pivot, un ressort de torsion (10) en prise entre la base et le bras de pivot, le ressort de torsion sollicitant le bras de pivot. Le ressort de torsion comporte une forme de section transversale ayant un grand axe (Z-Z) et un petit axe (X-X), le grand axe ayant une longueur (h) supérieure à une longueur de petit axe (b), le ressort de torsion comportant des parties planes (15, 16) qui sont sensiblement parallèles au grand axe, et le grand axe étant orienté dans une direction qui s'étend sensiblement radialement et normalement à un axe d'enroulement de ressort de torsion (Y-Y).
Fetherstonhaugh & Co.
The Gates Corporation
LandOfFree
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