Excavator
AssigneeSumitomo Construction Machinery Co., Ltd.
InventorTakashi Yamamoto
Life of this patent
Estimating the term…
Abstract
An excavator may perform a finishing operation to prepare a slope while maintaining workability. The excavator includes an undercarriage, a slewing upper structure rotatably mounted on the undercarriage, a boom pivotally mounted on the upper structure, an arm rotatably mounted on a tip end of the boom, a bucket mounted on a tip end of the arm, and a controller. The controller restricts a lowering operation of the boom, so that at least one of a pressing force of the bucket against the ground and a speed of lowering the bucket toward the ground does not become relatively large.
Claims16
An excavator comprising:
- a carriage;
- a structure rotatably mounted on the carriage;
- a boom pivotally mounted on the structure;
- an arm rotatably mounted on a tip end of the boom;
- a bucket mounted on a tip end of the arm;
- a camera configured to capture an area in a vicinity of the excavator;
- and
- a controller configured to restrict a lowering operation of the boom so that at least one of a pressing force of the bucket against the ground and a speed of lowering the bucket toward the ground does not become relatively large,
- wherein the controller is configured to judge whether a lifting action of the excavator occurred or is likely to occur, and restrict the lowering operation of the boom when the controller judges that the lifting action of the excavator occurred or is likely to occur.
An excavator comprising:
- a carriage;
- a structure rotatably mounted on the carriage;
- a boom pivotally mounted on the structure;
- an arm rotatably mounted on a tip end of the boom;
- a bucket mounted on a tip end of the arm;
- a camera configured to capture an area in a vicinity of the excavator;
- a controller configured to restrict a lowering operation of the boom so that at least one of a pressing force of the bucket against the ground and a speed of lowering the bucket toward the ground does not become relatively large;
- and
- a display device provided inside a cabin,
- wherein the display device displays a setting screen from which a user sets at least one of the force and the speed, and
- wherein the setting screen displays, visually recognizably, upper limit values and lower limit values settable for the force and speed, respectively, and a value that is currently set.
An excavator comprising:
- a carriage;
- a structure rotatably mounted on the carriage;
- a boom pivotally mounted on the structure;
- an arm rotatably mounted on a tip end of the boom;
- a bucket mounted on a tip end of the arm;
- a camera configured to capture an area in a vicinity of the excavator;
- a controller configured to restrict a lowering operation of the boom so that at least one of a pressing force of the bucket against the ground and a speed of lowering the bucket toward the ground does not become relatively large;
- and
- a display device provided inside a cabin,
- wherein the display device displays a setting screen from which a user sets at least one of the force and the speed, and
- wherein the setting screen schematically displays an image of the excavator performing an operation to prepare a slope.
Dependencies are inferred from the claim text.