IP Library Granted Patent US 12,533,972
Granted Patent B2
US 12,533,972 · App. 18/978,155 · Granted Jan 27, 2026

Work vehicle

Inventors: Go Takaki (Sakai, JP); Takahiro Takaki (Sakai, JP); Kenichi Iwami (Sakai, JP); Tomoyoshi Sakano (Sakai, JP); Yuki Minamide (Sakai, JP); Kodai Amitani (Sakai, JP); Yosuke Hayashi (Sakai, JP); Teppei Ohnishi (Sakai, JP); Atsushi Morita (Sakai, JP); Isamu Kazama (Sakai, JP); Kenshiro Matsui (Sakai, JP); Kenji Ishihara (Sakai, JP)
Assignee: KUBOTA CORPORATION
B60L50/70B60K1/04B60L1/00B62D21/02B62D25/10B60K2001/0411B60L2200/40B62D33/0617
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Quick Facts
Patent No.
US 12,533,972
App. No.
18/978,155
Granted
Jan 27, 2026
Kind
B2
Abstract

A work vehicle includes a driver seat, a fuel cell, at least one fuel tank to store fuel to be supplied to the fuel cell, a motor connected to the fuel cell, a vehicle frame supporting the driver seat, the fuel cell, and the motor, a mounting frame fixed to the vehicle frame to support the at least one fuel tank, the mounting frame extending across the driver seat, and a front housing covering the fuel cell and being openable and closable. The mounting frame does not interfere with the front housing when a position or orientation of the front housing changes from the closed state to the open state.

Claims (27)

1 . A work vehicle comprising:

a driver seat;

a fuel cell;

at least one fuel tank to store fuel to be supplied to the fuel cell;

a motor connected to the fuel cell;

a vehicle frame supporting the driver seat, the fuel cell, and the motor;

a mounting frame fixed to the vehicle frame to support the at least one fuel tank, the mounting frame extending across the driver seat; and

a front housing covering the fuel cell and being openable and closeable; wherein

the mounting frame does not interfere with the front housing when a position or orientation of the front housing changes from a closed state to an open state;

the vehicle frame includes a front frame to rotatably support front wheels; and

one end of the mounting frame is fixed to the front frame at a connection position that is in front of an axle of the front wheels.

2 . The work vehicle according to claim 1 , wherein

the mounting frame includes a left side frame and a right side frame; and

in a plan view looking down from above, the front housing is between the left side frame and the right side frame, and protrudes forward of the connection position.

3 . The work vehicle according to claim 2 , further comprising:

at least one connecting bar that connects the left side frame and the right side frame; wherein

the at least one connecting bar is connected to the left side frame and the right side frame at a position in front of the connection position in the plan view.

4 . The work vehicle according to claim 3 , wherein the connecting bar includes a plurality of bars at different heights.

5 . The work vehicle according to claim 3 , wherein the front housing is rotatable around a rotation axis in front of the axle of the front wheels in the plan view.

6 . The work vehicle according to claim 5 , wherein the connecting bar does not interfere with the front housing by being located in front of the front housing when the front housing is in the open state.

7 . The work vehicle according to claim 6 , wherein the connecting bar protrudes convexly forward in the plan view.

8 . The work vehicle according to claim 2 , wherein the front housing is rotatable around a rotation axis behind the axle of the front wheels in the plan view.

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

a cabin surrounding the driver seat between the vehicle frame and the mounting frame; wherein

the at least one fuel tank is above the cabin.

10 . The work vehicle according to claim 1 , wherein the work vehicle is an agricultural machine.

11 . The work vehicle according to claim 10 , further comprising a power take-off shaft driven by the motor.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2024
From: TAKAKI, GO; TAKAKI, TAKAHIRO; IWAMI, KENICHI; SAKANO, TOMOYOSHI; MINAMIDE, YUKI; AMITANI, KODAI; HAYASHI, YOSUKE; OHNISHI, TEPPEI; MORITA, ATSUSHI; KAZAMA, ISAMU; MATSUI, KENSHIRO; ISHIHARA, KENJI
To: KUBOTA CORPORATION
Reel/Frame 069567/0388 →
Priority Claims (1)
JP 2022-103776 · Jun 28, 2022 · national
Continuity (2)
Continuation PCTJP2023023491 · Jun 26, 2023
Related Publication 20250108706A1 · Apr 3, 2025
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