| 摘要 |
PROBLEM TO BE SOLVED: To dispose a swiveling mechanism for a working machine in a limited space while preventing the swiveling mechanism from coming in contact with an attachment to the working machine. SOLUTION: A hybrid shovel 1 (working machine) is provided with a swiveling bearing 10 having an inner ring and an outer ring 12 connected rotatably to each other and an inner gear formed on the interior of the inner ring. An upper swiveling body 5 is connected rotatably to the outer ring 12 to be integral therewith. A swiveling pinion 13 is engaged with the inner gear, and a motor 14 that rotates the swiveling pinion 13 is fixed to the upper swiveling body 5. An attachment 8 is so supported on a horizontal pivot 7 in front of the motor 14 on the upper swiveling body 5 that the attachment 8 is capable of rising and falling backward and forward. The rotating shaft 16 of the motor 14 is set backward offset in parallel to a swiveling pinion shaft 13a, and is geared with the swiveling pinion shaft 13a in the arrangement such that the swiveling pinion 13 overlap the attachment 8 in a plan view when the attachment 8 takes a maximum rise angle. COPYRIGHT: (C)2010,JPO&INPIT
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