A transport vehicle travels on first and second paths orthogonally or diagonally crossing each other and each including an opening at a center and treads on both sides of the opening. The transport vehicle includes a vehicle in an upper portion; a transport in a lower portion to hold an article; and a column extending downward from the vehicle to the transport. The vehicle includes on front and rear of the column along the first path, at least a pair of first traveling units each including a first traveling wheel that travels on the tread of the first path, and first auxiliary wheels on front and rear of the first traveling wheel along the first path; on front and rear of the column along the second path, at least a pair of second traveling units each including a second traveling wheel that travels on the tread of the second path, and second auxiliary wheels on front and rear of the second traveling wheel along the second path; and a lifting mechanism that raises and lowers one of the at least the pair of first traveling units and the at least the pair of second traveling units.


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    Title :

    Transport vehicle and transport vehicle system


    Contributors:

    Publication date :

    2018-09-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES



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