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专利名称：Rope traction device发明人：Yutaka Sugiyama申请号：US08/007750申请日：19930122公开号：US05332195A公开日：19940726
摘要：A rope traction device has a sheave which is driven and rotated to cause atraction rope to be wound on the sheave and thereby moves along the traction rope. Therope traction device includes a pair of annular side plates made of an elastic material andprovided at sides of the sheave in such a manner that the interval between the innersurfaces of the side plates is made smaller than the diameter of the rope by a
predetermined value and the side plates are secured to the sides of the sheave by meansof boltheads of bolts arranged alternately in the circumferential direction of the sheave.The side plates may alternately be secured to the sides of the sheave by means ofboltheads of bolts and nuts positioned at opposite positions in the circumferentialdirection of the sheave.
申请人：NITTON BISO CO., LTD.
代理机构：Hedman, Gibson & Costigan
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