IP Library Granted Patent US 12,631,764
Granted Patent B2
US 12,631,764 · App. 17/899,514 · Granted May 19, 2026

Work vehicle

Inventors: Tatsuya Ishino (Okayama, JP); Yohei Nakagawa (Okayama, JP)
Assignee: YANMAR HOLDINGS CO., LTD.
G01S19/36A01B76/00A01B79/005B60R16/0207B62D49/06H04B7/18517
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,631,764
App. No.
17/899,514
Granted
May 19, 2026
Kind
B2
Abstract

The work vehicle includes a vehicle body, a cabin mounted on the vehicle body and having a roof, and a positioning device located above the cabin and configured to detect a position of the vehicle body on the basis of a signal transmitted from a positioning satellite. The roof has a roof front end located in a forefront portion in a front-rear direction; and a roof uppermost end located behind the roof front end and located higher than the roof front end. A position of the positioning device is lower than the roof uppermost end.

Claims (41)

1 . A work vehicle including:

a vehicle body;

a cabin that is mounted on the vehicle body and has a roof, the roof has:

a roof front end that is located in a forefront portion in a front-rear direction; and

a roof uppermost end that is located behind the roof front end and is located higher than the roof front end;

a positioning device that is located directly above a portion of an exterior surface of the roof of the cabin and is configured to detect a position of the vehicle body based on a signal transmitted from a positioning satellite,

wherein a position of an uppermost end of the positioning device is lower than a position of the roof uppermost end when the positioning device is in use.

2 . The work vehicle according to claim 1 , wherein the position of the positioning device is higher than a position of the roof front end.

3 . The work vehicle according to claim 1 , wherein the positioning device is located in front of the roof uppermost end.

4 . The work vehicle according to claim 1 , further comprising:

a support mechanism that supports the positioning device, wherein:

the cabin has:

a right front pillar that is coupled to the vehicle body and is configured to support a right front portion of the roof; and

a left front pillar that is coupled to the vehicle body and is configured to support a left front portion of the roof,

the support mechanism has:

a right stay and a left stay that are respectively attached to the right front pillar and the left front pillar;

a support member that extends in a right-left direction at a position above the roof and has ends fixed to the right stay and the left stay; and

a seating that is fixed, at a position above the roof, to the support member, and

the positioning device is fixed to the seating.

5 . The work vehicle according to claim 4 , further comprising:

a control unit to which position information of the vehicle body is input via a harness, the position information of the vehicle body being detected by the positioning device,

wherein the harness is arranged along the right front pillar or the left front pillar.

6 . The work vehicle according to claim 1 , further comprising:

a support stay that is fixed to an upper surface of the roof and is configured to support the positioning device.

7 . The work vehicle according to claim 6 , wherein the roof has:

an inner roof;

a fixing frame to which the inner roof is fixed; and

an outer roof that is arranged above the inner roof, the outer roof is coupled to the fixing frame by a fastening unit, and the fastening unit has a spacer member configured to hold the support stay at a specified height position from the outer roof.

8 . The work vehicle according to claim 7 , wherein:

the support stay has a stay body that extends in a right-left direction at a position above the roof, and

each end portion of the stay body in the right-left direction is fixed to the outer roof by the fastening unit including the spacer member.

9 . The work vehicle according to claim 8 , further comprising:

a control unit to which position information of the vehicle body is input via a harness, the position information of the vehicle body being detected by the positioning device,

wherein the stay body has:

a flat plate portion that extends in the right-left direction and is configured to support the positioning device from below; and

a hanging portion that extends in the right-left direction and hangs down from a front end portion or a rear end portion of the flat plate portion, and

at a position behind the hanging portion, the harness is drawn and located in the right-left direction from the positioning device.

10 . The work vehicle according to claim 1 , wherein the position of the positioning device is higher than a position of the roof rear end.

11 . The work vehicle according to claim 1 , wherein a front end of the positioning device is at substantially a same height as a rear end of the positioning device.

12 . The work vehicle according to claim 1 , wherein the roof further has a roof rear end that is located in a rearmost portion in the front-rear direction, and

the roof uppermost end is located in front of and higher than the roof rear end.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2022
From: ISHINO, TATSUYA; NAKAGAWA, YOHEI
To: YANMAR HOLDINGS CO., LTD.
Reel/Frame 060949/0422 →
Priority Claims (1)
JP 2021-141517 · Aug 31, 2021 · national
Continuity (1)
Related Publication 20230076382A1 · Mar 9, 2023
References Cited (33)
US 2785002A · Schumaker · 1957 [cited by examiner]
US 11186312B2 · Nishi · 2021 [cited by examiner]
US 11221630B2 · Nishi · 2022 [cited by examiner]
US 11383703B2 · Nishi · 2022 [cited by examiner]
US 11529920B2 · Misaki · 2022 [cited by examiner]
US 11780499B2 · Kobayashi · 2023 [cited by examiner]
US 11871690B2 · Nishikubo · 2024 [cited by examiner]
US 11884141B2 · Horai · 2024 [cited by examiner]
US 11904777B2 · Ishino · 2024 [cited by examiner]
US 11912205B2 · Takase · 2024 [cited by examiner]
US 11951910B2 · Misaki · 2024 [cited by examiner]
US 20190248421A1 · Jacobsthal · 2019 [cited by examiner]
US 20190317521A1 · Nishi · 2019 [cited by examiner]
EP 2246485A1 · 2010 [cited by applicant]
JP 2018184100A · 2018 [cited by applicant]
JP 2019070544A · 2019 [cited by applicant]
JP 6716763B1 · 2020 [cited by examiner]
JP 2021041745A · 2021 [cited by applicant]
WO WO2018135234A1 · 2018 [cited by examiner]
WO WO2019069779A1 · 2019 [cited by examiner]
WO WO2019124258A1 · 2019 [cited by examiner]
WO WO2019142506A1 · 2019 [cited by examiner]
WO WO2020129961A1 · 2020 [cited by examiner]
WO WO2020129969A1 · 2020 [cited by examiner]
WO WO2021131670A1 · 2021 [cited by examiner]
Translation of WO2018135234 (Year: 2018). [cited by examiner]
Translation of WO2021131670 (Year: 2021). [cited by examiner]
Translation of WO2020129969 (Year: 2020). [cited by examiner]
Translation of WO2019142506 (Year: 2019). [cited by examiner]
Translation of JP 6716763 Description (Year: 2020). [cited by examiner]
Translation of WO 2019069779 Description (Year: 2019). [cited by examiner]
Translation of WO 2019124258 Description (Year: 2019). [cited by examiner]
European Search Report dated Jan. 23, 2023 issued for EP Application No. 22192659.5. [cited by applicant]