| 摘要 |
An I-beam clamp comprises a body having a seat and defining a medial pla ne extending through and perpendicular to the seat and a normal plane aligned with the seat; a pair of pads mounted to the body for movement between respective closed positions beyond the seat, on opposite sides of and in spaced relation to th e medial plane and in spaced relation to the normal plane, and open positions, wherea t each pad is disposed, relative to its closed position, in a direction away from both the normal plane and the medial plane; and an actuator for effecting movement of the pa ds between their closed positions and their open positions. Clamp pairs can be secured to a disabled trailer undercarriage and a brace can be disposed between each pair. A saddle can be secured to each pair to urge the brace towards the undercarria ge and support same for towing. |
