AUTOMATIC OPENING CLOSING TYPE ELECTRIC HOOK

摘要

PURPOSE: An electromotive hook is provided to connect and separate more conveniently with steel structure building by remote controlling for maximizing work efficiency and to secure work stability by developing work environment. CONSTITUTION: A crane is driven to move an electromotive hook of an automatic opening type to a piling spot where steel skeletal structures are loaded. A worker moves the automatic opening electromotive hook(100) to an end of the steel skeletal structure and positions between support walls(32,33) for matching an inner end of a support member(50) to an assembly slot of the skeletal structure or equaling to a hole of a shackle. A remote controller(72) is operated or either a manual operative switch equipped with a control box(71) is manipulated to drive an electromotor(40). Thus a rotating axle(41) rotates and power is delivered to a ball screw(61) via a drive gear(63) and a driven gear(64) for rotating the ball screw. With equal operation, the electromotive hook(100) is combined to the skeletal structure and the crane operates to move the skeletal structure to an assembling position. When separating the electromotive hook from the skeletal structure, the worker feeds a separating signal by using the remote controller to the control box.