The invention relates to a lifting hook comprising a hook body (2) with a hook stem (4) and a hook tip (5); a safety latch (6) with a fastening end (7) and a free latch end (8), the fastening end of the safety latch being pivotally fastened close to the stem so as to be moved between an open position and a closed position, the safety latch being in its open position substantially against the inside of the hook body in a position that leaves a hook jaw (G) free while in the closed position the latch end extends across the hook jaw to the hook tip, closing the jaw on the inside thereof; and means for actuating the safety latch, the means comprising a spring arranged between the safety latch and the hook body and forcing the latch end into the closed position, a locking pawl structure and a cam surface arrangement (10, 11) for locking the safety latch (6) into the open position, and release means (12) extending across the jaw for releasing the safety latch (6) from the open position. The invention also separately relates to a safety latch for a lifting hook.
LIFTING HOOK AND SAFETY LATCH FOR LIFTING HOOK
2015-08-26
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile |
LIFTING HOOK, SAFETY LATCH OF LIFTING HOOK AND LOCKING AND RELEASING DEVICE OF SAFETY LATCH
European Patent Office | 2019
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