Patent ID: 11866101
Assignee: KUBOTA CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC B  E | IPC B  E

Claim 1:
2. The working machine according to claim 1, further comprising
a turning motor attached to the swivel base;
a swing bearing having
an outer ring attached to the swivel base, and
an inner ring provided on an inner peripheral side of the outer ring so as to be rotatable around the turn axis, the inner ring having an inner peripheral gear portion formed on an inner peripheral side thereof; and

a pinion meshing with the inner peripheral gear portion and moving along the inner peripheral gear portion by being driven to rotate by the turning motor,
wherein the traveling frame has an inner ring attachment portion shaped annularly to which the inner ring is attached,
wherein the first joint support portion and the second joint support portion protrude from the inner ring attaching portion toward the center of the opening,
and wherein the first opening portion and the second opening portion are provided below a movement locus of the pinion.