PROBLEM TO BE SOLVED: To provide a grab bucket that inhibits ropes from being caught between a structure constituting the grab bucket and a sheave arranged for the structure to interrupt conveyance work, and can improve conveyance efficiency, and an unloader equipped with the grab bucket.SOLUTION: A grab bucket comprises: a pair of opening/closing parts which house and convey an object to be conveyed; a support part 3 which openably/closably and pivotally supports the pair of opening/closing parts; and a disc-shaped sheaves 5 which are rotatably installed to the support part 3, around which ropes 6 are wound, and which includes a groove part 11 formed on a circumferential surface of the sheave 5 and allowing the rope 6 to be fitted thereinto and guided along a circumferential direction, and at least a part of the sheave 5 is in an exposed state. Scrapers 16 are installed at prescribed positions in a range P2 in which the ropes 6 are not fitted into the groove parts 11.SELECTED DRAWING: Figure 7

    【課題】グラブバケットを構成する構造体とこれに配置されるシーブとの間にロープが噛み込んで搬送作業が中断されることを抑制するとともに、搬送効率を向上できるグラブバケットおよびこのグラブバケットを備えるアンローダを提供する。【解決手段】被搬送物を収容して搬送する一対の開閉部と、この一対の開閉部を開閉可能に軸支する支持部3と、この支持部3に回転可能に設置されてロープ6を掛け回される円盤形状のシーブ5とを備え、シーブ5の周面に形成されて周方向に沿ってロープ6が嵌り込んで案内される溝部11をシーブ5が備えていて、シーブ5の少なくとも一部が露出状態であるグラブバケットにおいて、溝部11でロープ6が嵌り込まない範囲P2の所定位置にスクレーパ16を設置する。【選択図】図7


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    Title :

    GRAB BUCKET, AND UNLOADER EQUIPPED WITH THE SAME


    Additional title:

    グラブバケットおよびこのグラブバケットを備えるアンローダ


    Contributors:

    Publication date :

    2017-02-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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