IP Library Granted Patent US 8,167,529
Granted Patent B2
US 8,167,529 · App. 12/561,672 · Granted May 1, 2012

Work vehicle

Assignee: Yanmar Co., Ltd.
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 8,167,529
App. No.
12/561,672
Granted
May 1, 2012
Kind
B2
Abstract

A tractor includes a mounting plate, a protruding tube, a boom supporter, and a boom. The mounting plate is attachable to a frame on a side surface of a vehicle. The protruding tube is connected to the mounting plate, and shaped to protrude from a portion in which the protruding tube is connected to the mounting plate, toward the outside of the vehicle. The boom supporter is connected to a distal end portion of the protruding tube, and shaped to protrude upward from a portion in which the boom supporter is connected to the distal end portion of the protruding tube. The boom is coupled to the boom supporter via a boom coupler, and formed to extend from the boom coupler toward the front side of the vehicle. In a side view, an imaginary straight line extending vertically downward from the boom coupler is located rearward of the protruding tube.

Claims (20)

1. A work vehicle comprising:

a mounting plate attachable to a frame that is on a side surface of a vehicle body;

a protruding member that is connected to the mounting plate and shaped so as to protrude from a portion in which the protruding member is connected to the mounting plate, toward the outside of the vehicle body;

a boom supporter that is connected to a distal end portion of the protruding member and shaped so as to protrude upward from a portion in which the boom supporter is connected to the distal end portion of the protruding member; and

a boom that is coupled to the boom supporter via a coupling part and formed so as to extend from the coupling part toward the front side of the vehicle body, wherein:

in a side view, an imaginary straight line extending vertically downward from the coupling part is located rearward of the protruding member,

the boom supporter includes a lower boom-coupling member positioned at a lower side and an upper boom-coupling member positioned at an upper side,

in a side view, the lower boom-coupling member protrudes upward and rearward from the portion in which the lower boom-coupling member is connected to the protruding member,

in a side view, the upper boom-coupling member protrudes upward from a portion in which the upper boom-coupling member is connected to the lower boom-coupling member, and

a reinforcing member, which is connected to the mounting plate and the lower boom-coupling member to thereby provide reinforcement, is provided rearward of the protruding member.

2. The work vehicle according to claim 1 , wherein the reinforcing member is connected to the lower boom-coupling member, near the portion in which the lower boom-coupling member and the upper boom-coupling member are connected to each other.

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

a floor on which an operator can put his/her feet; and

a floor extension member that is connected to a front portion of the floor and provided in an interior space formed above the reinforcing member and inside the boom supporter.

4. The work vehicle according to claim 3 , comprising a hydraulic pipe that supplies hydraulic oil to a hydraulic unit, wherein

the hydraulic pipe passes through the interior space.

5. The work vehicle according to claim 4 , wherein

the hydraulic pipe is disposed below the floor extension member.

6. The work vehicle according to claim 4 , comprising a hydraulic coupling disposed below the floor, wherein

the hydraulic pipe passes below the floor extension member and above the reinforcing member, and is connected to the hydraulic coupling.

Assignments (2)
CHANGE OF NAME Recorded Aug 26, 2020
From: YANMAR CO., LTD.
To: YANMAR POWER TECHNOLOGY CO., LTD.
Reel/Frame 054162/0112 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 8, 2009
From: KURAYA, YOSHIAKI; FUJIKI, KATSUMI; IIDA, TETSUYA
To: YANMAR CO., LTD.
Reel/Frame 023622/0278 →
Continuity (1)
Related Publication 20110064552A1 · Mar 17, 2011