PROBLEM TO BE SOLVED: To provide a sheave device for a crane compact in a vertical direction and a thickness direction.SOLUTION: A sheave device for a crane includes: a boom side sheave device 35 provided at a boom tip section 30; and a hook side sheave device 25 provided in a hook section 20. Each sheave device 35 and 25 includes two pairs of sheave groups 26, 27, 36 and 37 formed by three sheaves or more which are mutually and vertically directed and disposed in a protruding semi-circular arc shape. When the two pairs of sheave groups 26, 27, 36 and 37 are used as four-rope winding, the pairs of sheave groups are disposed so that an axis line of a wire rope 12 laid between each sheave device 35 and 25 is spirally wound on the same plane.SELECTED DRAWING: Figure 3

    【課題】上下方向および厚さ方向にコンパクトなクレーン用シーブ装置を提供する。【解決手段】ブーム先端部30に設けられるブーム側シーブ装置35と、フック部20に設けられるフック側シーブ装置25とを備え、各シーブ装置35、25は、相互に上下を向く凸の半円弧状に配置された三以上のシーブからなる2組のシーブ群26、27,36、37をそれぞれ有する。2組のシーブ群26、27,36、37は、4本掛けとして用いられるときに、各シーブ装置35、25間に掛け回されるワイヤロープ12の軸線が同一平面上で渦巻き状に巻回されるように配置される。【選択図】図3


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    Title :

    SHEAVE DEVICE FOR CRANE AND CRANE INCLUDING THE SAME


    Additional title:

    クレーン用シーブ装置およびこれを備えるクレーン


    Contributors:

    Publication date :

    2016-12-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES / B66D Haspeln , CAPSTANS



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