| 摘要 |
A jaw for a bar clamp and a method of using a bar clamp, the bar clamp including a trigger having a first force applying mechanism to apply a first force against the drive lever at a first point on the drive lever that is remote from the bar as the trigger pivots with respect to the main section to provide low mechanical advantage to the drive lever. The trigger also having a second force applying mechanism to apply a second force against the drive lever at a second point on the drive lever that is closer to the bar than the first point as the trigger pivots with respect to the main section to provide high mechanical advantage to the drive lever.
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