Work machine and assist device to assist in work with work machine

Patent metadata

Field	Value
Publication number	US-12286769-B2
Application number	US-202217647892-A
Country	US
Kind code	B2
Filing date	Jan 13, 2022
Priority date	Jul 17, 2019
Publication date	Apr 29, 2025
Grant date	Apr 29, 2025

Abstract

A work machine includes a lower traveling structure, an upper swing structure swingably mounted on the lower traveling structure, an attachment attached to the upper swing structure, a surrounding area monitor, and a display. The display is configured to display guidance with respect to an object detected by the surrounding area monitor.

First claim

What is claimed is:

1. A work machine comprising:
a lower traveling structure;
an upper swing structure swingably mounted on the lower traveling structure;
an attachment attached to the upper swing structure;
a surrounding area monitor; and
a display,
wherein the display is configured to display a first object detected by the surrounding area monitor and guidance with respect to the first object, said first object and the guidance being displayed separately from each other, and
wherein the guidance includes a graphic indicating a position of the attachment in a swing radius direction of the attachment relative to the first object, or a position of a second object that is lifted by the attachment in a swing radius direction of the second object relative to the first object,
wherein the guidance includes a plurality of markers arranged in the swing radius direction of the attachment and indicates, by highlighting a marker corresponding to a position of the attachment, the position of the attachment relative to the first object, or the position of a second object that is lifted by the attachment relative to the first object, said plurality of markers indicating a position in the swing radius direction of the attachment.

2. The work machine as claimed in claim 1 , wherein the display is configured to display the guidance corresponding to a height of the object.

3. The work machine as claimed in claim 1 , wherein
a reference point is set based on the object, and
the display is configured to display the guidance with respect to a distance from the reference point in a swing radius direction.

4. The work machine as claimed in claim 1 , wherein the display is configured to display a graphic as the guidance, the graphic representing a position of the attachment or an object lifted by the attachment with respect to a swing radius direction, relative to the object positioned in an area surrounding the work machine.

5. The work machine as claimed in claim 4 , wherein the object lifted by the attachment includes earth scooped into a bucket or a suspended load.

6. The work machine as claimed in claim 5 , wherein
the object positioned in the area surrounding the work machine is a dump truck, and
the graphic is displayed in such a manner as to correspond to each of a current state of the bucket and a state of the bucket when the bucket is opened.

7. The work machine as claimed in claim 4 , wherein
the object positioned in the area surrounding the work machine is an installed object installed by the work machine, and
the graphic is constructed in such a manner as to represent a positional relationship between a position regarding the installed object and the object lifted by the attachment with respect to the swing radius direction.

8. The work machine as claimed in claim 1 , comprising:
a hardware processor configured to restrict a movement of the attachment.

9. The work machine as claimed in claim 8 , wherein the hardware processor is configured to stop the movement of the attachment in response to determining that there is a possibility of contact between the object positioned in an area surrounding the work machine and the attachment or an object lifted by the attachment.

10. The work machine as claimed in claim 1 , wherein the display is configured to display only a part of the attachment.

11. The work machine as claimed in claim 1 , wherein a width of the object or an object lifted by the attachment is detected by the surrounding area monitor, and the guidance is provided based on the width.

12. The work machine as claimed in claim 1 , wherein a position of the object is detected by the surrounding area monitor, and a position at a predetermined distance from a reference point of the object is displayed as the guidance.

13. The work machine as claimed in claim 1 , wherein an upper surface of the object is detected by the surrounding area monitor, and the guidance is provided with respect to the detected upper surface.

14. The work machine as claimed in claim 1 , wherein the object positioned in an area surrounding the work machine is an installed object installed by the work machine.

15. The work machine as claimed in claim 1 , wherein
the object positioned in an area surrounding the work machine is an installed object installed by the work machine, and
the display is configured to display the guidance representing a positional relationship between a position regarding the installed object and an object lifted by the attachment.

16. The work machine as claimed in claim 1 , wherein
the guidance relates to a distance in a swing radius direction in front of the upper swing structure, and
the display is configured to display the guidance as an image related to an area in front of the upper swing structure.

17. The work machine as claimed in claim 1 , wherein the graphic indicates, by changing a display mode according to operation of the attachment, the position of the attachment in the swing radius direction of the attachment relative to the first object, or the position of the second object that is lifted by the attachment in the swing radius direction of the second object relative to the first object.

18. The work machine as claimed in claim 1 , wherein one of the plurality of the markers indicates a position of the attachment or the second object in the swing radius direction of the attachment closest to a position of the attachment or the second object in the swing radius direction of the attachment after a predetermined time has elapsed.

19. The work machine as claimed in claim 18 , wherein one of the plurality of the markers that indicates the position of the attachment or the second object in the swing radius direction of the attachment or the second object is filled with a first color, and
the one of the plurality of the markers that indicates the position of the attachment in the swing radius direction of the attachment or the second object closest to the position of the attachment in the swing radius direction of the attachment or the second object after the predetermined time has elapsed is filled with a second color.

20. An assist device configured to assist in work with a work machine, the work machine including 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 surrounding area monitor, the assist device comprising:
a display configured to display a first object detected by the surrounding area monitor and guidance with respect to the first object, said first object and the guidance being displayed separately from each other, and
wherein the guidance includes a graphic indicating a position of the attachment in a swing radius direction of the attachment relative to the first object, or a position of a second object that is lifted by the attachment in a swing radius direction of the second object relative to the first object,
wherein the guidance includes a plurality of markers arranged in the swing radius direction of the attachment and indicates, by highlighting a marker corresponding to a position of the attachment, the position of the attachment relative to the first object, or the position of a second object that is lifted by the attachment relative to the first object, said plurality of markers indicating a position in the swing radius direction of the attachment.

21. A system configured to manage a work machine, the work machine including a lower traveli

Assignees

• Sumitomo Construction Machinery Co Ltd

Inventors

• Shiratani Ryuji
• Kitajima Daisuke
• Aragaki Hajime

Classifications

• E02F3/43

  Control of dipper or bucket position; Control of sequence of drive operations · CPC title

• E02F9/26 Primary

  Indicating devices {(E02F5/145 takes precedence)} · CPC title

• E02F9/261 Primary

  Surveying the work-site to be treated · CPC title

• E02F9/2033

  Limiting the movement of frames or implements, e.g. to avoid collision between implements and the cabin (sub-groups of E02F3/431 of E02F3/435 take precedence; for turntables E02F9/123) · CPC title

• E02F3/435

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