IP Library Granted Patent US 12703958
Granted Patent B2
US 12703958 · App. 17/448,725 · Granted Aug 11, 2026

Shovel and construction system

Inventor: Takeya Izumikawa (Chiba, JP)
Assignee: SUMITOMO CONSTRUCTION MACHINERY CO., LTD.
E02F3/437E02F3/434E02F9/2033E02F9/2041E02F9/22E02F9/26
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Quick Facts
Patent No.
US 12703958
App. No.
17/448,725
Filed
Sep 24, 2021
Granted
Aug 11, 2026
Kind
B2
Art Unit
3664
USPC
701/50
Abstract

A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, an attachment attached to the upper turning body, and a controller provided to the upper turning body. The controller is configured to set a predetermined condition on movement of the lower traveling body, and provide information on stopping the movement of the lower traveling body upon determining that the predetermined condition is satisfied.

Claims (44)

1 . A shovel comprising:

a lower traveling body;

an upper turning body turnably mounted on the lower traveling body;

an attachment including a boom attached to the upper turning body, an arm attached to the boom, and an end attachment attached to the arm; and

a computer mounted on the upper turning body, the computer including a processor and a memory,

wherein the computer is configured to, before each time an excavation is performed while the shovel is in operation, dynamically determine a next location of a virtual plane to be reached by the shovel for the excavation, the virtual plane including a normal to an intended work surface and passing through a center point of the shovel and through the attachment along a longitudinal direction thereof,

wherein the computer is configured to determine the next location of the virtual plane by determining a distance between a current location of the virtual plane and the next location of the virtual plane such that a volume of soil to be loaded into the end attachment during the excavation equals a volume of the end attachment,

wherein the computer is configured to calculate the volume of soil to be loaded into the end attachment based on data on the intended work surface, data on a current ground surface, data on a size of the end attachment, and data on a work start position and a work end position of the excavation, and

wherein the computer is configured to, when the lower traveling body is in motion, notify an operator of the shovel of a remaining distance between the center point of the shovel and the next location of the virtual plane through at least one of a display or a sound output device, upon determining that the remaining distance is less than or equal to a threshold.

2 . A shovel comprising:

a lower traveling body;

a traveling hydraulic motor configured to move the lower traveling body;

an upper turning body turnably mounted on the lower traveling body;

an attachment including a boom attached to the upper turning body, an arm attached to the boom, and an end attachment attached to the arm; and

a computer mounted on the upper turning body, the computer including a processor and a memory,

wherein the computer is configured to, when the lower traveling body is in motion, control the traveling hydraulic motor to stop a movement of the lower traveling body upon determining that the lower traveling body has moved a predetermined distance, and

the computer is configured to, before an excavation each time the excavation is performed, dynamically determine the predetermined distance based on a volume of soil to be loaded into the end attachment during the excavation, while the shovel is in operation.

3 . The shovel according to claim 2 , wherein the computer is configured to determine a distance of the movement of the lower traveling body based on a distance between a predetermined part of the end attachment before the movement of the lower traveling body and the predetermined part of the end attachment after the movement of the lower traveling body, or based on a distance between a predetermined part of the upper turning body before the movement of the lower traveling body and the predetermined part of the upper turning body after the movement of the lower traveling body.

4 . The shovel according to claim 3 , wherein the predetermined distance is less than a width of the end attachment.

5 . The shovel according to claim 3 , wherein the computer is configured to dynamically determine the predetermined distance such that a first area and a second area overlap with each other, the first area being an area excavated using the attachment immediately before the movement of the lower traveling body, and the second area being an area to be excavated using the attachment immediately after the movement of the lower traveling body.

6 . The shovel according to claim 5 , wherein the computer is configured to dynamically determine the predetermined distance such that there is an overlap between the first area and the second area throughout excavation of the second area using the attachment.

7 . The shovel according to claim 5 , wherein the computer is configured to dynamically determine the predetermined distance such that the overlap between the first area and the second area increases as the volume of the soil to be loaded into the end attachment during the excavation of the second area increases.

8 . The shovel according to claim 2 , wherein the volume of the soil to be loaded into the end attachment during the excavation is calculated based on data on an intended work surface, data on a current ground surface, data on a size of the end attachment, and data on a distance between a start position and an end position of the excavation.

9 . The shovel according to claim 2 , wherein the computer is configured to control the upper turning body to front-face an intended work surface during the movement of the lower traveling body.

10 . A construction system comprising:

a shovel including

a lower traveling body,

an upper turning body turnably mounted on the lower traveling body, and

an attachment including a boom attached to the upper turning body, an arm attached to the boom, and an end attachment attached to the arm;

a display configured to output information to and receive information; and

a computer including a processor and a memory, the computer being configured to remotely control the shovel,

wherein the computer is configured to, before each time an excavation is performed while the shovel is in operation, dynamically determine a next location of a virtual plane to be reached by the shovel for the excavation, the virtual plane including a normal to an intended work surface and passing through a center point of the shovel and through the attachment along a longitudinal direction thereof,

wherein the computer is configured to determine the next location of the virtual plane by determining a distance between a current location of the virtual plane and the next location of the virtual plane such that a volume of soil to be loaded into the end attachment during the excavation equals a volume of the attachment,

wherein the computer is configured to calculate the volume of soil to be loaded into the end attachment based on data on the intended work surface, data on a current ground surface, data on a size of the end attachment, and data on a work start position and a work end position of the excavation,

wherein the computer is configured to control the display to display an image indicating the next location of the virtual plane and information on a remaining distance between the center point of the shovel and the next location of the virtual plane in an overhead view image of an area surrounding the shovel, and

wherein the computer is configured to update the information on the remaining distance as the shovel moves.

11 . The construction system according to claim 10 , wherein the computer is configured to output the remaining distance to the display.

12 . A construction system for assisting construction work to be performed using a shovel, the shovel including a lower traveling body; a traveling hydraulic motor configured to move the lower traveling body; an upper turning body turnably mounted on the lower traveling body; and an attachment including a boom attached to the upper turning body, an arm attached to the boom, and an end attachment attached to the arm, the construction system comprising:

a computer including a processor and a memory, the computer being configured to, when the lower traveling body is in motion, output a command to the shovel, the command being a command to control the traveling hydraulic motor to stop a movement of the lower traveling body, upon determining that the lower traveling body has moved a predetermined distance,

wherein the computer is configured to, before each time an excavation is performed, dynamically determine the predetermined distance while the shovel is in operation,

wherein the computer is configured to dynamically determine the predetermined distance such that a volume of soil to be load into the end attachment during the excavation to be performed immediately after the shovel moves the predetermined distance equals a volume of the end attachment, and

wherein the computer is configured to calculate the volume of soil to be loaded into the end attachment based on data on the intended work surface, data on a current ground surface, data on a size of the end attachment, and data on a work start position and a work end position of the excavation.

13 . The construction system according to claim 12 , wherein the computer is configured to determine a distance of the movement of the lower traveling body based on a distance between a predetermined part of the end attachment before the movement of the lower traveling body and the predetermined part of the end attachment after the movement of the lower traveling body, or based on a distance between a predetermined part of the upper turning body before the movement of the lower traveling body and the predetermined part of the upper turning body after the movement of the lower traveling body.

14 . The construction system according to claim 13 , wherein the predetermined distance is less than a width of the end attachment.