Work vehicle with antenna devices for autonomous travel

Patent metadata

Field	Value
Publication number	US-12552405-B2
Application number	US-201816963198-A
Country	US
Kind code	B2
Filing date	Nov 29, 2018
Priority date	Feb 8, 2017
Publication date	Feb 17, 2026
Grant date	Feb 17, 2026

Abstract

The present invention provides a work vehicle with which various antenna devices useful for autonomous travel and the like of the work vehicle can be mounted efficiently and the various antenna devices can be solidly supported. This work vehicle 1 is provided with a cabin 7, wherein a support frame 100 is fixed to a cabin frame 200 in the left-right width direction at an upper position on the outside of the cabin 7, and an antenna unit 50 on which an inertial measurement device, a GNSS antenna, and a wireless communication device are assembled, is attached to the support frame 100 while the inertial measurement device and the GNSS antenna are arranged in approximately the center position in the left-right width direction of the machine body.

First claim

The invention claimed is:

1 . A work vehicle comprising a cabin,
wherein a support frame extending in a lateral width direction is fixed to a cabin frame at an upper position outside the cabin, and wherein an antenna unit is attached to the support frame via a bracket and the antenna unit with respect to the support frame is mounted displaceably from a normal use position protruding above a roof of the cabin to a non-use position in which the antenna unit and the bracket are lower than the highest position of the roof.

2 . The work vehicle according to claim 1 , wherein the support frame is coupled to mirror mounting parts provided on both lateral sides of the cabin frame to extend between the mirror mounting parts.

3 . The work vehicle according to claim 1 , comprising:
a control unit configured to perform autonomous traveling control of the vehicle body; and an autonomous traveling restraint unit configured to restrict start of the autonomous traveling control by the control unit unless it is detected that the antenna unit is in the normal use position.

4 . The work vehicle according to claim 1 , wherein a control unit configured to perform autonomous traveling control of the vehicle body is provided in the cabin, and a harness led out from the antenna unit is arranged to reach the control unit in the cabin via an internal/external communication passage provided in the cabin frame.

5 . The work vehicle according to claim 3 , wherein a harness led out from the antenna unit is arranged at one side edge in the lateral width direction on an outer surface of a windshield of the cabin and extends along a band-shaped part overlapping with a glass receiving part of a front pillar of the cabin.

6 . A work vehicle comprising:
a cabin; an antenna unit having a receiver for receiving position information; a support frame supporting the antenna unit; and, a pair of left and right front pillars, wherein the left side of the support frame is supported by the left front pillar, and the right side of the support frame is supported by the right front pillar.

7 . The work vehicle according to claim 6 ,
wherein the left and right front pillars are coupled to mirror mounting parts.

8 . The work vehicle according to claim 6 , wherein the antenna unit is located at a center position in the lateral width direction of a vehicle body.

9 . The work vehicle according to claim 6 ,
wherein at least a portion of the antenna unit protrudes in front of and above the left and right front pillars.

Assignees

• Yanmar Power Technology Co Ltd

Inventors

• Hanada Yosuke
• Ishibashi Fumio

Classifications

• B60W2300/15

  Agricultural vehicles · CPC title

• B60R11/02 Primary

  for radio sets, television sets, telephones, or the like; Arrangement of controls thereof · CPC title

• B60W2756/10

  Involving external transmission of data to or from the vehicle · CPC title

• B60R2011/004

  outside the vehicle · CPC title

• A01B69/007

  Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow · CPC title