Remote operated latch assembly and lifting hook with such an assembly
AssigneeActuant Corporation
InventorsEldar Lien, Wojciech Piotr Wypych
Life of this patent
Estimating the term…
Abstract
A lifting hook (14) provided with a remotely operated safety latch (12), wherein remote operation is used to both open and close the latch. The latch can be magnetically held (36) in the open position to connect and disconnect the load from the hook. Furthermore, an indicator (42) can be provided to indicate when the latch is latched and unlatched. The latch can be operated with lines with a first line (62) controlling one direction of movement of the latch and a second line (64) controlling a second direction of movement of the latch.
Claims23
An apparatus for remotely locking and unlocking a latch of a lifting hook, the apparatus comprising:
- a first line coupled to the latch and extending to an operator located remotely from the lifting hook, manipulation of the first line moving the latch toward a locked condition with respect to the hook;
- and
- a second line coupled to the latch and extending to the operator located remotely from the lifting hook, manipulation of the second line moving the latch toward an unlocked condition with respect to the hook.
A lifting hook comprising:
- a main body having a proximal end and a distal end defining an opening;
- a remotely operated latch pivotally coupled to the main body and selectively extending from the proximal end of the main body to the distal end of the main body when the latch is in a locked position;
- and
- an indicator providing an indication when the latch is in the locked position.
A lifting hook comprising:
- a main body having a body proximal end and a body distal end defining an opening;
- a latch for selectively locking and unlocking the lifting hook, the latch having a latch proximal end and a latch distal end, the latch proximal end being pivotally connected to the main body;
- an actuator coupled to the latch and adapted to pivot the latch about the proximal end between a closed position and an open position;
- and
- a magnet positioned to magnetically hold the latch in an open position against a portion of the body proximal end.
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Dependencies are inferred from the claim text.