| 摘要 |
A lifting apparatus for handling skids includes a pair of grippers equipped with bite-arrays for penetrating into the skid runners. A pick-up module is supported from a hoist suspension providing controlled vertical movement thereof and mounts the grippers for oppositely directed translational movement. Spacer structure engages the skid to position the spikes of the bite arrays for unimpeded movement in a plane that intersects the skid runners. Fluid pressure drive mechanism actuates the grippers individually to produce separate movement thereof and applies self-balancing forces thereto to drive the grippers through runner-penetrating travel only after both grippers have established runner contacting engagement.
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