MOUNTING LOAD-GRIPPING DEVICE Russian patent published in 2004 - IPC

FIELD: materials handling facilities.

SUBSTANCE: invention relates to load-lifting equipment and it is designed for transportation of unit loads in difficult-to-get-at places. Proposed device contains telescopic beam consisting of at least three hollow bodies, load-gripping member, counterweight installed on beam for displacement under action of screw, and beam telescoping system with lead screw. First of said screws is made hollow, being arranged coaxially with lead screw, and is provided with inner thread corresponding to thread of lead screw, and outer thread with hand of helix opposite to that of lead screw thread. Device is furnished with mechanism to center beam bodies relative to each other. Beam telescoping system is provided with wire rope rigidly secured in left-hand spacer of outer body and passed over sheaves installed on middle body of telescopic beam, and wire rope clamp located on profile of inner body from side of its right-hand spacer. Hollow screw is fitted with its shank in bearing mounted in right-hand spacer of outer body, being installed for displacing lead screw and profile of middle body. Rollers of counterweight are installed on eccentric axles, nut of counterweight is made for bringing out of meshing with thread of hollow screw by means of said eccentric axles which are provided with handles for turning through 180^o for lifting counterweight with nut and bringing the latter out of meshing with thread of hollow screw. Spans of two-span sling are of different length.

EFFECT: simplified design, reduced overall dimensions of device in width, improved convenience in operation.

2 cl, 10 dwg