To improve the convenience and the safety of moving work of a portal crane.SOLUTION: The portal crane capable of moving between a first traveling direction and the second traveling direction whose traveling directions are different from each other, includes at least a gate-like main body part 10, a first wheel 20 for allowing the main body part 10 to travel in the first traveling direction, lifting means 30 capable of lifting the main body part 10 such that the first wheel 20 is floated from the first traveling direction, a second wheel 40 for allowing the main body part 10 to travel in the second traveling direction, and elevating/lowering means 50 capable of elevating/lowering the second wheel 40 with respect to the main body part 10. When using the portal crane, the second wheel 40 is lowered after floating the first wheel 20 by using the lifting means 30, and traveling in the second traveling direction is performed by the second wheel 40.SELECTED DRAWING: Figure 2

    【課題】門型クレーンの移動作業の利便性や安全性を向上する。【解決手段】走行方向を異にする第1の走行方向および第2の走行方向間を往来可能な門型クレーンであって、門型状を呈する本体部10と、本体部10を第1の走行方向で走行させるための第1の車輪20と、第1の走行方向から第1の車輪20が浮くように本体部10を持ち上げ可能とするリフト手段30と、本体部10を第2の走行方向で走行させるための第2の車輪40と、前記第2の車輪40を本体部10に対して昇降可能とする昇降手段50と、を少なくとも有する。使用時には、リフト手段30で持って第1の車輪20を浮かせてから第2の車輪40を下降させて、該第2の車輪40でもって第2の走行方向での走行を行う。【選択図】図2


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    Title :

    MOVING METHOD OF PORTAL CRANE


    Additional title:

    門型クレーンの移動方法


    Contributors:

    Publication date :

    2019-08-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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