公开(公告)号：US20220178471A1

公开(公告)日：2022-06-09

申请号：US17441320

申请日：2020-03-19

申请人： KUBOTA CORPORATION

发明人： Shozo KISHI ,  Kazuya ITO ,  Yuito KOMARU ,  Ko ISHIMURA ,  Masataka SHIMOMURA ,  Yutaka FUJIMOTO ,  Kento HIGASHI

IPC分类号： F16L1/09 ,  F16L1/036

摘要： A pipe joining method includes a moving of a first transport trolley with a loaded first pipe and a second transport trolley with a loaded second pipe forward, a joining of one end of the first pipe to another end of a rearmost pipe of a pipeline, a lifting of another end of the first pipe, a moving of the first transport trolley and the second transport trolley backward, a drawing of the first transport trolley from beneath of the first pipe to the near side, a removing of a coupler to separate the first transport trolley and the second transport trolley, a moving of the first transport trolley backward, a drawing of the first transport trolley below the second pipe loaded on the second transport trolley, and a moving of the second transport trolley forward with the first transport trolley.