| 摘要 |
PROBLEM TO BE SOLVED: To simplify structure of a truck of a travelling vehicle. SOLUTION: Front and rear pipes penetrate a frame of a lower part of the travelling vehicle, travel shafts are supported by bearings disposed to both ends of the pipes, the travel shafts are connected with travel wheels and travel motors, and intermediate shafts are housed in the pipes connecting the right and left travel shafts. COPYRIGHT: (C)2009,JPO&INPIT
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