| 摘要 |
A clutch for selective engagement and release with the head of a lifting anchor embedded in a concrete component whereby to connect the anchor to a lifting system. The clutch comprises a body (10) having a slot (16) for receiving the head of an anchor, and a bolt (14) engageable into an eye in the head of the anchor for releasably locking the head. The bolt is of arcuate form and is movable along an arcuate passage (20) in the body between engaged and released positions relative to the slot. The arcuate bolt is connected to an operating arm (17) extending generally radially relative to the bolt to effect movement of the bolt along the passage. A locking system (24, 28) prevents movement of the bolt from its engaged position until release of the locking system.
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