| 摘要 |
PROBLEM TO BE SOLVED: To enable a high-capacity battery to be mounted on a working vehicle without making an entire vehicle large-sized and further enable a driving operation for the working vehicle to be full electrically driven. SOLUTION: A space between a main frame 17 and an upper turning unit 11 is applied as a battery storing part between the right and left caterpillars 16, 16 of a lower running vehicle 10 in order to cause many large-sized batteries having a requisite capacity required for operating various kinds of working vehicles for a long period of time under non-charged state; and a battery case 21 having a plurality of batteries 22 installed on a battery base seat 20 with the main frame 17 being expanded in a forward or rearward direction. In addition, a height of a supporting drum 32 for use in supporting a turning device 18 at the main frame 17 of the lower running vehicle 10 is made high. COPYRIGHT: (C)2004,JPO
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