Tractor

Patent metadata

Field	Value
Publication number	US-10081219-B2
Application number	US-201515105844-A
Country	US
Kind code	B2
Filing date	Mar 19, 2015
Priority date	Mar 28, 2014
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

To obtain a front axle frame having a high degree of strength appropriate to heavy load tasks, without resulting in a decrease in productivity or a drastic rise in costs. In a tractor that includes a front axle frame supporting a front axle case, the front axle frame is configured by a cast metal member having a support portion on a bottom of the front axle frame, the support portion supporting the front axle case.

First claim

The invention claimed is:

1. A tractor having a front axle frame supporting a front axle case,
wherein the front axle frame is configured as a cast metal member having one or more support portions on a bottom of the front axle frame, the one or more support portions supporting the front axle case,
wherein the one or more support portions project from a surface of the bottom of the front axle frame,
wherein the front axle case includes a front/back-oriented support shaft rotatably supported by front and rear holders, and
wherein the front axle frame is long in a front/back direction, spanning the front and rear holders, and wherein the one or more support portions include a front support portion at the front of the front axle frame and a rear support portion at the rear of the front axle frame, and the front axle frame is configured to support the front axle case with the front and rear support portions, via the front and rear holders.

2. The tractor according to claim 1 , wherein the front support portion and the rear support portion are configured for threaded engagement with the front and rear holders, respectively.

3. The tractor according to claim 1 , wherein the front axle frame comprises a side wall, and wherein the front support portion and the rear support portion project beyond the side wall.

4. The tractor according to claim 1 , wherein the front support portion and the rear support portion project downwardly from the surface of the bottom of the front axle frame to a same extent.

Assignees

• Kubota Kk

Inventors

• Tomimatsu Daisuke
• Kashimoto Tatsuyuki
• Inubushi Yutaka

Classifications

• B62D21/186

  for building site vehicles or multi-purpose tractors (tracked vehicles B62D55/10; tractors in general B62D49/00; building site vehicles in general E02F; lift-trucks B66F) · CPC title

• B60Y2200/221

  Tractors · CPC title

• B60B35/163

  characterised by specific shape of the housing, e.g. adaptations to give space for other vehicle elements like chassis or exhaust system · CPC title

• B60Y2410/124

  Welded parts · CPC title

• B62D49/00

  Tractors (of walk type B62D51/04; endless- track features B62D55/00 {; transport specially adapted for underground galleries E21F13/02}) · CPC title