Patent ID: 11959253
Assignee: SUMITOMO CONSTRUCTION MACHINERY CO., LTD.
Field: Civil engineering (Other fields)
Classification: CPC E  B | IPC B  E  G

Claim 0:
1. An excavator comprising:
a lower traveling structure;
an upper swing structure swingably mounted on the lower traveling structure;
an attachment attached to the upper swing structure; and
a display device configured to display a plurality of ranges including a first range and a second range in a top view looking at the upper swing structure from above such that the plurality of ranges are distinguishable, the first range being a working range where a distal end of the attachment is movable without causing an unstable state of the excavator, the second range being outside the first range and lower in stability degree than the first range,
wherein the display device is configured to display the plurality of ranges together with an image, the image indicating a position of the distal end of the attachment and changing in response to an operation of the attachment by an operator, in such a manner as to enable the operator to understand a positional relationship between the position of the distal end of the attachment and a boundary between the first range and the second range in the top view.