| 摘要 |
<p>An apparatus (10) for imparting tension to at least one strand of an endless loop power transferring member (12) encircling a drive sprocket (14) and at least one driven sprocket (16a, 16b). At least one moveable tensioning arms (18a, 18b) is pivotable about fixed pins (26a, 26b) on at least two swing arms (20a, 20b), and support an inwardly facing shoe (20a, 20b) with a power-transferring-member-sliding face (22a, 22b). In a multi-strand tensioning configuration, a link assembly (60) can include at least two link members (32a, 32b) pivotally connected to one another at respective first ends (40a, 40b) and constrained for limited movement along a fixed slot (36) extending generally along a centerline of the endless loop power transferring member (12) between the drive sprocket (14) and the driven sprockets (16a, 16b). The two link members (32a, 32b) are pivotally connected individually to opposite ones of the two spaced apart tensioning arms (18a, 18b) at second locations (42a, 42b).</p> |
