| 摘要 |
<p>A belt tensioning device for shifting a pulley such that a belt passed aroun d the pulley is tightened to a predetermined tension. The device includes a rod coupled to t he pulley, a member coupled to and movable along the rod, and a spring that exerts a reactive force against the member when the member is moved in a first direction along the rod. The devi ce further includes a spacer which engages the member to limit the advancement of the member in the first direction.</p> |
