Shovel and construction system

Patent metadata

Field	Value
Publication number	US-2022010521-A1
Application number	US-202117448725-A
Country	US
Kind code	A1
Filing date	Sep 24, 2021
Priority date	Mar 28, 2019
Publication date	Jan 13, 2022
Grant date	—

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.

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 attached to the upper turning body; and a controller provided to the upper turning body, wherein 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.

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 attached to the upper turning body; and a controller provided to the upper turning body, wherein the controller is configured to set a predetermined condition on movement of the lower traveling body, and control the traveling hydraulic motor to stop the movement of the lower traveling body upon determining that the predetermined condition is satisfied.

3 . The shovel according to claim 1 ,
wherein the predetermined condition includes the lower traveling body having moved a predetermined distance, and the predetermined distance is determined based on a distance between a predetermined part of an end attachment before the movement and the predetermined part of the end attachment after the movement or based on a distance between a predetermined part of the upper turning body before the movement and the predetermined part of the upper turning body after the movement.

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 predetermined distance is determined such that a first area and a second area overlap with each other, the first area being an area where work using the attachment is performed immediately before the movement of the lower traveling body, and the second area being an area where the work using the attachment is performed immediately after the movement of the lower traveling body.

6 . The shovel according to claim 5 , wherein the second area overlaps with the first area from when the work using the attachment is started until when the work using the attachment is finished, the work using the attachment being performed immediately after the movement of the lower traveling body.

7 . The shovel according to claim 5 , wherein an area where the first area and the second area overlap with each other increases as a volume of soil loaded into the end attachment during the work using the attachment increases, the work using the attachment being performed immediately after the movement of the lower traveling body.

8 . The shovel according to claim 7 , wherein the volume 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 work start position and a work end position.

9 . The shovel according to claim 7 , wherein the predetermined distance is determined based on the volume.

10 . The shovel according to claim 1 , wherein the controller is configured to perform control that causes the upper turning body to front-face an intended work surface during the movement of the lower traveling body.

11 . A construction system for assisting construction work to be performed using a shovel including
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 construction system comprising: a communication device configured to communicate with the shovel; and a control device, wherein the control device is configured to set a predetermined condition on movement of the lower traveling body, and upon determining that the predetermined condition is satisfied, output information on stopping the movement of the lower traveling body to the shovel via the communication device.

12 . A construction system for assisting construction work to be performed using a 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 attached to the upper turning body, the construction system comprising: a communication device configured to communicate with the shovel; and a control device, wherein the control device is configured to set a predetermined condition on movement of the lower traveling body, and upon determining that the predetermined condition is satisfied, output information on stopping the movement of the lower traveling body to the shovel via the communication device such that the traveling hydraulic motor is controlled to stop the movement of the lower traveling body.

13 . The construction system according to claim 11 , wherein the predetermined condition includes the lower traveling body having moved a predetermined distance, and
the predetermined distance is determined based on a distance between a predetermined part of an end attachment before the movement and the predetermined part of the end attachment after the movement or is determined based on a distance between a predetermined part of the upper turning body before the movement and the predetermined part of the upper turning body after the movement.

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

Assignees

• Sumitomo Construction Machinery Co Ltd

Inventors

• Izumikawa Takeya

Classifications

• E02F9/2054

  Fleet management · CPC title

• E02F9/262

  with follow-up actions to control the work tool, e.g. controller · CPC title

• E02F9/205

  Remotely operated machines, e.g. unmanned vehicles (E02F3/8866 takes precedence) · CPC title

• E02F9/2221

  Control of flow rate; Load sensing arrangements (E02F9/2203 take precedence over E02F9/2221) · CPC title

• E02F9/2253

  Controlling the travelling speed of vehicles, e.g. adjusting travelling speed according to implement loads, control of hydrostatic transmission · CPC title