| 摘要 |
A tensioner comprising a shaft (10) having a shaft portion (12) engagable with a mounting surface, a pivot arm (50) pivotally engaged with the shaft about an axis A-A, a plate (70) fixedly attached to the shaft, the plate disposed on an end of the shaft opposite the shaft portion, a torsion spring (60) engaged between the pivot arm and the plate for biasing the pivot arm, the torsion spring disposed opposite the shaft portion and immediately adjacent the plate, a pulley (40) journalled to the pivot arm, the center of rotation of the pivot arm (A-A) disposed eccentrically from the center of rotation (B-B) of the plate, the pivot arm having a tab (55) which cooperates with a portion (74) on the plate to indicate a relative position of the pivot arm with respect to the plate during installation, and a tool receiving portion (75) on the plate for rotationally adjusting the plate during installation.
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