SYNCHRONIZING DEVICE FOR EXTENSIBLE/CONTRACTIBLE RAM IN HYDRAULIC LIFT

摘要

PROBLEM TO BE SOLVED: To enable a device to realize a very small bending radius in the case of transmitting equal force as compared with a steel-made cable, in the case of a synthetic fiber cable applying sheathing. ;SOLUTION: In this synchronizing device for an extensible/contractible ram 4 in a hydraulic lift, a plurality of pistons 6, 7 and a single cylinder 5 are simultaneously in/out moved relating to a leg part 3, one is fixed to a shaft wall, the other is fixed to the piston 6, 7 and the cylinder 5, to be deflected on a synthetic material preferably a roller 11 of polyamide, for instance, a synthetic fiber cable 10 composed of alamide fiber or the like is used for synchronizing. In the fiber cable 10 in use, as compared with a steel-made cable, a bending radius is very small, with high comfortableness at moving time, weight is lightened as compared with a chain.;COPYRIGHT: (C)1999,JPO