| 摘要 |
An I-beam clamp comprises a body having a seat and defining a medial plane 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 the medial plane and in spaced relation to the normal plane, and open positions, whereat 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 pads 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 undercarriage and support same for towing.
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