Crane construction gripping device and communication method thereof
OwnerDaniel B. Erwininventor
Life of this patent
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Abstract
For procedural safety, a gripping device for a crane hook for safely removing a hook from a forklift may include a sensor and a method of communicating the open and closed status of the hook to a crane cab for the driver to be notified. The gripping device can include a handle, having a trigger coupled to a cable seated within a central rod. A pair of jaws may couple to the central rod and a finger may couple to one jaw, wherein the cable is seated within the one jaw and the finger, which can swing about a hinge. As such, when the trigger is actuated while the hook is positioned between the pair of jaws, the cable is pulled, which pulls the finger down to open a latch of the crane hook. When the trigger is released, the cable is released and the finger retracts up.
Claims12
A gripping device for a crane hook, comprising:
- a handle, having a trigger coupled to a cable;
- a central rod coupled to the handle, wherein the cable is seated inside the central rod;
- and
- a grip, having a pair of jaws, coupled to the central rod;
- wherein each jaw includes a magnet coupled thereto;
- a finger coupled to one of the pair of jaws, wherein the cable couples to an interior of the finger to control the movement of the finger;
- wherein when a crane hook is placed near the pair of jaws, the pair of magnets exert magnetic force upon the crane hook to connect the pair of jaws within the gap formed by the pair of jaws to stabilize the crane hook;
- wherein when the trigger is actuated, the trigger pulls the cable and the cable pulls the finger down to open a latch of the crane hook and when the trigger is released, the trigger releases the cable and the finger retracts up.
Dependencies are inferred from the claim text.