Shovel and control device for shovel

Patent metadata

Field	Value
Publication number	US-12509848-B2
Application number	US-202318470689-A
Country	US
Kind code	B2
Filing date	Sep 20, 2023
Priority date	Mar 31, 2021
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

A shovel includes a lower traveling body, an upper swiveling body mounted to the lower traveling body, attachments including a boom attached to the upper swiveling body, an arm attached to an end of the boom, and a bucket that is an end attachment attached to an end of the arm, and a control device configured to control swiveling of the upper swiveling body and movement of the attachments so that an end portion of the bucket moves along an extension of a slope toe, which is a target line.

First claim

What is claimed is:

1 . A shovel, comprising:
a lower traveling body; an upper swiveling body mounted to the lower traveling body; an attachment including a boom attached to the upper swiveling body, an arm attached to an end of the boom, and an end attachment attached to an end of the arm; and a hardware processor configured to control swiveling of the upper swiveling body and movement of the attachment so that a left end or a right end of the end attachment moves so as to coincide with a target line, wherein a length of the target line is less than a radius of operation.

2 . The shovel according to claim 1 , wherein the target line is a slope toe, a slope top, an edge of a channel, or a line along a corner of a bottom surface of a quadrangular channel.

3 . The shovel according to claim 1 , wherein the hardware processor is configured to perform a combined movement including a swiveling movement, a boom raising movement, and an arm closing movement, and moves the left end or the right end of the end attachment along the target line.

4 . The shovel according to claim 1 , wherein the hardware processor is configured to, in response to operation of a swiveling operation lever with a predetermined switch being operated, control the swiveling of the upper swiveling body and the movement of the attachment so that the left end or the right end of the end attachment moves along the target line.

5 . The shovel according to claim 1 , wherein the target line is a line extending in a form of a straight line.

6 . The shovel according to claim 1 , wherein the hardware processor is configured to set a target stop position at which the lower traveling body stops so as to remove, with the attachment, soil and sand deposited at an edge portion of a target construction surface.

7 . The shovel according to claim 6 , wherein the target stop position includes
first target stop positions corresponding to a plurality of sections to be subjected to a slope finishing operation, and second target stop positions corresponding to section sets each formed with two or more continuous sections of the plurality of sections.

8 . The shovel according to claim 7 , wherein the hardware processor is configured to stop the lower traveling body at one of the first target stop positions, next stop the lower traveling body at one of the second target stop positions, and next stop the lower traveling body at another one of the first target stop positions.

9 . The shovel according to claim 6 , wherein the target construction surface is a wall surface of a channel, and
the edge portion is an edge of the channel, or a corner between the wall surface and a bottom surface of the channel.

10 . A control device for a shovel that includes a lower traveling body, an upper swiveling body mounted to the lower traveling body, and an attachment including a boom attached to the upper swiveling body, an arm attached to an end of the boom, and an end attachment attached to an end of the arm, the control device comprising:
a hardware processor configured to control swiveling of the upper swiveling body and movement of the attachment so that a left end or a right end of the end attachment moves so as to coincide with a target line, wherein a length of the target line is less than a radius of operation.

11 . The control device for the shovel according to claim 10 , wherein the hardware processor is configured to set a target stop position at which the lower traveling body stops so as to remove, with the attachment, soil and sand deposited at an edge portion of a target construction surface.

Assignees

• Sumitomo Heavy Industries

Inventors

• Sano Yusuke
• Honda Keiji
• Onodera Masaru

Classifications

• E02F3/32

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

• E02F3/307

  the boom and the dipper-arm being connected so as to permit relative movement in more than one plane · CPC title

• E02F3/302

  with an additional link · CPC title

• E02F9/2012

  Setting the functions of the control levers, e.g. changing assigned functions among operations levers, setting functions dependent on the operator or seat orientation · CPC title

• E02F3/437

  providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant · CPC title