| 摘要 |
<p>The cable-cutting pincers uses cutters mounted on coupled jaws, the movement of a movable hand-lever being transmitted to the mobile jaw through a cam and an elbow-jointed lever system. The transmission linkage multiplies the force applied to the hand lever and a ratchet wheel with pawl prevents return hand lever movements, a tensioned spring being used to hold the jaws closed when not in use. A trigger may be used to effect relaxation of the spring, permitting the jaws to be opened for the work to be inserted, and caused the work to be gripped when released. The cam may be in one piece with the ratched wheel, and transmit force to a roller in the lever system. The pincer is mounted between two rigidly connected plates.</p> |
