Work vehicle

Patent metadata

Field	Value
Publication number	US-10759337-B2
Application number	US-201715819053-A
Country	US
Kind code	B2
Filing date	Nov 21, 2017
Priority date	Jun 9, 2017
Publication date	Sep 1, 2020
Grant date	Sep 1, 2020

Abstract

A work vehicle includes a blade, a shutter, a notification unit, and a controller. The blade includes a lower end. The shutter is attached to the blade. The shutter can be alternatively disposed at a first position at which the shutter protrudes forward from the lower end of the blade or at a second position at which the shutter is farther away from the lower end than at the first position. The notification unit is configured to notify surroundings of the work vehicle about information of the work vehicle. The controller is configured to change information notified by the notification unit in accordance with an arrangement of the shutter at one of the first position and the second position.

First claim

What is claimed is:

1. A work vehicle comprising:
a blade including a lower end;
a shutter attached to the blade, the shutter being capable of being disposed alternatively at a first position at which the shutter protrudes forward from the lower end of the blade or at a second position at which the shutter is farther away from the lower end of the blade than at the first position;
a notification unit configured to notify surroundings of the work vehicle about information of the work vehicle;
an input operation unit into which an operation instruction is input by an operator; and
a controller,
the controller being configured to:
receive an input of an operation instruction to the input operation unit,
generate a control signal to cause the shutter to move from one to the other between the first position and the second position based on the received input, and
automatically change information notified by the notification unit in conjunction with movement of the shutter from one to the other between the first position and the second position.

2. The work vehicle according to claim 1 , wherein the notification unit includes a display unit configured to show the information of the work vehicle so as to be visible from the surroundings of the work vehicle.

3. The work vehicle according to claim 2 , wherein
when the shutter is at the second position, the display unit shows a warning display to a following vehicle traveling behind the work vehicle, the warning display indicating that overtaking of the work vehicle is prohibited, and
when the shutter is at the first position, the display unit shows a caution display to the following vehicle, the caution display giving a caution on overtaking the work vehicle.

4. The work vehicle according to claim 3 , wherein
the warning display is shown in a first color, and
the caution display is shown in a second color different from the first color.

5. The work vehicle according to claim 2 , further comprising an operator's cab in which an operator operating the work vehicle is aboard, wherein
the display unit is provided on a rear surface of the operator's cab.

Assignees

• Komatsu Mfg Co Ltd

Inventors

• Kamimae Takeshi
• Matsuyama Nobuo
• Kobayashi Shintaro
• Harada Muneo

Classifications

• B60Q1/547

  for issuing requests to other traffic participants; for confirming to other traffic participants they can proceed, e.g. they can overtake · CPC title

• B60Q1/5037

  the display content changing automatically, e.g. depending on traffic situation · CPC title

• B60Q1/50 Primary

  for indicating other intentions or conditions, e.g. request for waiting or overtaking · CPC title

• B60Q1/543

  for indicating other states or conditions of the vehicle (indicating taxis' state of hire or fare G07B13/045) · CPC title

• B60Q2800/20

  Utility vehicles, e.g. for agriculture, construction work · CPC title