| 摘要 |
<p>Swing working vehicles of a type having an extremely small swing radius at the rear and a type having an extremely small swing radius. The vehicles have commonality between their respective rotation table frames that are each supported on a traveling device and have a working machine, and as a result, productivity is increased and costs are reduced. A swing working vehicle has a rotation table frame (5) that is constructed such that the portion rearward of both sides of the rotation table frame (5) is substantially within the width of a traveling device (3) and is circular in a plan view. The front portion of the rotation table frame (5) is rectilinearly cut in the left-right direction in the plan view, and a stepped portion (5c) recessed rearward is formed at the right side relative to the advancement direction.</p> |
