Patent ID: 6290009
Filing Date: 2001-09-18
Classification: B62D

Abstract:
A small radial swivel working vehicle, comprising:a pair of left and right traveling devices, each of said traveling devices including a crawler having a lateral edge and a medial edge;a plurality of laterally parallel core metal projections provided on each of said crawlers that are aligned in a longitudinal direction of said crawler on either side of a lateral middle line thereof;a swivel body horizontally rotatably mounted above a portion between said pair of traveling devices, a rotational center point of said swivel body being arranged at a substantially lateral middle portion between said pair of traveling devices;a balance weight provided in a portion of said swivel body having an outer surface which is circular when viewed in plan, wherein a horizontal distance between said outer surface of said swivel body and said rotational center point of said swivel body is less than a horizontal distance between said lateral edge of each of said crawlers and said rotational center point of said swivel body; anda working machine including a boom, a base end of said boom being pivoted on a pivot portion of said swivel body opposite to said balance weight with respect to said rotational center point, wherein a horizontal distance between said pivot portion of said swivel body and said rotational center point of said swivel body is substantially equal to a horizontal distance between said rotational center point of said swivel body and said lateral middle line of said core metal projections.