IP Library Granted Patent US 12,338,601
Granted Patent B2
US 12,338,601 · App. 17/654,871 · Granted Jun 24, 2025

Shovel

Inventors: Chunnan Wu (Kanagawa, JP); Yusuke Sano (Kanagawa, JP); Yasuhiro Yamamoto (Kanagawa, JP); Yoshiyasu Itsuji (Kanagawa, JP); Kazunori Hiranuma (Kanagawa, JP)
Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
E02F3/437E02F3/32E02F3/43E02F3/439E02F9/262E02F3/28E02F3/425E02F9/265
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Quick Facts
Patent No.
US 12,338,601
App. No.
17/654,871
Granted
Jun 24, 2025
Kind
B2
Abstract

A shovel includes a lower traveling structure, an upper swing structure swingably mounted on the lower traveling structure, and a hardware processor provided on the upper swing structure. The hardware processor is configured to recognize the position of a dump truck and create a target trajectory for a dumping operation.

Claims (21)

1. A shovel comprising:

a lower traveling structure;

an upper swing structure swingably mounted on the lower traveling structure; and

a hardware processor provided on the upper swing structure, and configured to recognize a position of a dump truck and create a target trajectory for a dumping operation, the target trajectory being a trajectory drawn by a predetermined part of the shovel during the dumping operation,

wherein the target trajectory is a virtual line segment connecting a dumping start point and a dumping end point over a bed of the dump truck, the dumping start point being a first predetermined interval apart from a rear gate of the dump truck, the dumping end point being a second predetermined interval apart from a front panel of the dump truck.

2. The shovel as claimed in claim 1 , wherein the target trajectory is set along a longitudinal direction of the dump truck.

3. The shovel as claimed in claim 1 , wherein the target trajectory is set at a predetermined height along a bottom surface of the bed of the dump truck.

4. The shovel as claimed in claim 1 , wherein the hardware processor is further configured to set a bucket angle for each of points on the target trajectory.

5. The shovel as claimed in claim 1 , wherein the hardware processor is further configured to control a bucket angle based on a shape of a load loaded onto the bed of the dump truck.

6. The shovel as claimed in claim 1 , wherein the hardware processor is further configured to detect a distance between a back surface of a bucket and the dump truck.

7. The shovel as claimed in claim 1 , wherein the hardware processor is further configured to cause the target trajectory to differ from dumping operation to dumping operation.

8. The shovel as claimed in claim 1 , wherein the hardware processor is further configured to determine a height of a newly formed load each time the dumping operation is performed.

9. The shovel as claimed in claim 1 , wherein the hardware processor is further configured to cause a bucket to operate to level an upper surface of a newly formed load with a back surface of the bucket, when a height of the load exceeds a predetermined height.

10. The shovel as claimed in claim 1 , wherein the hardware processor is further configured to determine a width of a newly formed load each time the dumping operation is performed.

11. The shovel as claimed in claim 1 , wherein the hardware processor is further configured to set the dumping start point and the dumping end point.

12. A controller for a shovel, the shovel including a lower traveling structure and an upper swing structure swingably mounted on the lower traveling structure, the controller comprising:

a hardware processor configured to configured to recognize a position of a dump truck and create a target trajectory for a dumping operation, the target trajectory being a trajectory drawn by a predetermined part of the shovel during the dumping operation,

wherein the target trajectory is a virtual line segment connecting a dumping start point and a dumping end point over a bed of the dump truck, the dumping start point being a first predetermined interval apart from a rear gate of the dump truck, the dumping end point being a second predetermined interval apart from a front panel of the dump truck.

13. The controller as claimed in claim 12 , wherein the hardware processor is further configured to cause the target trajectory to differ from dumping operation to dumping operation.

14. The controller as claimed in claim 12 , wherein the hardware processor is further configured to determine a height of a newly formed load each time the dumping operation is performed.

15. The controller as claimed in claim 12 , wherein the hardware processor is further configured to cause a bucket to operate to level an upper surface of a newly formed load with a back surface of the bucket, when a height of the load exceeds a predetermined height.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2022
From: WU, CHUNNAN; SANO, YUSUKE; YAMAMOTO, YASUHIRO; ITSUJI, YOSHIYASU; HIRANUMA, KAZUNORI
To: SUMITOMO HEAVY INDUSTRIES, LTD.
Reel/Frame 059268/0746 →
Priority Claims (1)
JP 2019-169178 · Sep 18, 2019 · national
Continuity (2)
Continuation PCTJP2020035425 · Sep 18, 2020
Related Publication 20220195690A1 · Jun 23, 2022
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Cited By (1)
US 12,630,998