BUNK CLAMPING DEVICE Russian patent published in 1999 - IPC

FIELD: timber industry; loading, holding and unloading of long-cut loads. SUBSTANCE: base is fitted for turning on plate of self-propelled chassis. Bell crank and turnable post are hinge-mounted on base posts. Ends of bellcrank and post (their tops) can turn on hinge joints. Turning of bellcrank and turnable post and their tops in vertical plane is provided by synchronizing device. Ends of wire ropes are secured on tops. Wire ropes are passed over sheaves of bellcrank, post and base. Support beam with drive, a hydraulic cylinder, is hinge-mounted for turning in lower arm of bell crank. With bunk gear open, pack of load-cut loads, for instance, trees, is placed on raised support post. Under action of weight of threes at floating position of hydraulic cylinder, support beam lowers down closing the bunk gear and tops of bell crank and turnable post clamp additionally loaded trees. EFFECT: increased reliability of fixing of transported long-cut loads. 4 cl, 5 dwg