IP Library Granted Patent US 12,240,399
Granted Patent B2
US 12,240,399 · App. 18/130,988 · Granted Mar 4, 2025

Work vehicle

Inventors: Ryota Shimizu (Sakai, JP); Hiroyuki Suzuki (Sakai, JP)
Assignee: Kubota Corporation
B60R21/13
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Quick Facts
Patent No.
US 12,240,399
App. No.
18/130,988
Granted
Mar 4, 2025
Kind
B2
Abstract

Provided is a work vehicle including left and right front wheels located in a front portion of a vehicle body of the work vehicle; left and right rear wheels located in a rear portion of the vehicle body; a driver section located at an intermediate position of the vehicle body in a front-rear direction, and including a driver seat; a ROPS frame including left and right front columns and left and right rear columns, and covering the driver section; and a plurality of suspension mechanisms supporting the front wheels and the rear wheels to the vehicle body in such a manner that the front wheels and the rear wheels are individually movable up and down, and wherein the ROPS frame is attached to positions immediately above, or in a vicinity of, vehicle body-side support sections of the suspension mechanisms.

Claims (22)

1. A work vehicle comprising:

left and right front wheels located in a front portion of a vehicle body of the work vehicle;

left and right rear wheels located in a rear portion of the vehicle body;

a driver section located at an intermediate position of the vehicle body in a front-rear direction, and including a driver seat;

a ROPS frame comprising left and right front columns and left and right rear columns, and covering the driver section; and

a plurality of suspension mechanisms supporting the front wheels and the rear wheels to the vehicle body such that the front wheels and the rear wheels are individually movable up and down,

wherein the ROPS frame is attached to positions immediately above, or in a vicinity of, vehicle body-side support sections of the suspension mechanisms, and

wherein the left and right front columns of the ROPS frame are respectively directly attached to the vehicle body-side support sections of left and right suspension mechanisms supporting the left and right front wheels, among the plurality of suspension mechanisms, the left and right front columns being directly attached by being received within the vehicle body-side support sections of the left and right suspension mechanisms.

2. The work vehicle according to claim 1 , wherein:

the ROPS frame comprises:

a front lateral frame section connected to upper portions of the left and right front columns and extending in a left-right direction;

a rear lateral frame section connected to upper portions of the left and right rear columns and extending in the left-right direction; and

left and right longitudinal frame sections respectively connected to the upper portions of the left and right front columns and the upper portions of the left and right rear columns and extending in a front-rear direction, and

the front lateral frame section is located above a front portion of the driver section, and the rear lateral frame section is located above a rear portion of the driver section.

3. The work vehicle according to claim 2 ,

wherein the front column comprises a grip for an occupant.

4. The work vehicle according to claim 1 , wherein the left and right front columns respectively include standing portions extending substantially vertically and rearward-inclined portions.

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

a coupling member coupling the vehicle body-side support sections of the left and right suspension mechanisms,

wherein:

the vehicle body-side support sections extend from the coupling member toward an inner side of the vehicle body, and

the suspension mechanisms are attached directly to the vehicle body-side support sections at an inner side of the vehicle body from the coupling member.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 19, 2024
From: SHIMIZU, RYOTA; SUZUKI, HIROYUKI
To: KUBOTA CORPORATION
Reel/Frame 066182/0690 →
Priority Claims (1)
JP 2022-066362 · Apr 13, 2022 · national
Continuity (1)
Related Publication 20230331183A1 · Oct 19, 2023
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