Shovel and shovel control device

Patent metadata

Field	Value
Publication number	US-2024011253-A1
Application number	US-202318471565-A
Country	US
Kind code	A1
Filing date	Sep 21, 2023
Priority date	Mar 22, 2021
Publication date	Jan 11, 2024
Grant date	—

Abstract

A shovel includes a lower traveling body; an upper turning body turnably mounted on the lower traveling body; an attachment mounted on the upper turning body; and a control device including a memory storing a program and a processor configured to execute a process including automatically decelerating or stopping turning of the upper turning body when interference between the attachment and a control reference surface is predicted while the upper turning body is turning.

First claim

What is claimed is:

1 . A shovel comprising:
a lower traveling body; an upper turning body turnably mounted on the lower traveling body; an attachment mounted on the upper turning body; and a control device including a memory storing a program and a processor configured to execute a process including automatically decelerating or stopping turning of the upper turning body when interference between the attachment and a control reference surface is predicted while the upper turning body is turning.

2 . The shovel according to claim 1 , wherein the process includes prohibiting a boom raising operation by automatic control when interference between the attachment and the control reference surface is predicted while the upper turning body is turning.

3 . The shovel according to claim 1 , wherein the process includes decelerating the turning of the upper turning body when a predetermined part of the attachment is located in a preset deceleration region.

4 . The shovel according to claim 3 , wherein the deceleration region varies with an attitude of the attachment.

5 . The shovel according to claim 3 , wherein a width of the deceleration region decreases as a working radius of the attachment decreases.

6 . The shovel according to claim 1 , wherein the control reference surface is acquired as design information or is acquired by an imaging device.

7 . The shovel according to claim 1 , wherein the process includes decelerating or stopping the lower traveling body when interference between the attachment and the control reference surface is predicted while the lower traveling body is traveling.

8 . A shovel control device for controlling a shovel, the shovel including a lower traveling body, an upper turning body turnably mounted on the lower traveling body, and an attachment attached to the upper turning body,
the shovel control device comprising: a memory storing a program and a processor configured to execute a process including automatically decelerating or stopping turning of the upper turning body when interference between the attachment and a control reference surface is predicted while the upper turning body is turning.

9 . The shovel control device according to claim 8 , wherein the process includes prohibiting a boom raising operation by automatic control when interference between the attachment and the control reference surface is predicted while the upper turning body is turning.

10 . The shovel control device according to claim 8 , wherein the process includes decelerating the turning of the upper turning body when a predetermined part of the attachment is located in a preset deceleration region.

11 . The shovel control device according to claim 10 , wherein the deceleration region varies with an attitude of the attachment.

12 . The shovel control device according to claim 10 , wherein a width of the deceleration region decreases as a working radius of the attachment decreases.

13 . The shovel control device according to claim 8 , wherein the control reference surface is acquired as design information or is acquired by an imaging device.

14 . The shovel control device according to claim 8 , wherein the process includes decelerating or stopping the lower traveling body when interference between the attachment and the control reference surface is predicted while the lower traveling body is traveling.

Assignees

• Sumitomo Construction Machinery Co Ltd

Inventors

• Izumikawa Takeya

Classifications

• E02F9/24

  Safety devices {, e.g. for preventing overload (E02F9/226 takes precedence)} · CPC title

• E02F9/123

  Drives or control devices specially adapted therefor (E02F9/125 and E02F9/128 take precedence) · CPC title

• E02F9/265 Primary

  with follow-up actions (e.g. control signals sent to actuate the work tool) · CPC title

• E02F3/32

  working downwardly and towards the machine, e.g. with backhoes · CPC title

• E02F3/435

  for dipper-arms, backhoes or the like · CPC title