US 6,578,656 B2Granted

Riding mower

AssigneeKubota Corporation

InventorsKazuo Samejima, Hironori Tsuchihashi, Yoshikazu Togoshi, Yoshihiro Kawahara, Teruo Shimamura, Osami Fujiwara, Yoshiyuki Esaki

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Abstract

A riding mower includes a pair of right and left propelling wheels, an engine disposed rearwardly of axles of the propelling wheels, a pair of right and left transmission cases corresponding to the propelling wheels and supporting the propelling wheels, respectively, a pair of right and left HSTs coupled to the transmission cases for outputting power thereto, respectively, a center case housing a power distributor for transmitting power from the engine to the pair of right and left HSTs, and a mower unit disposed forwardly of the propelling wheels. The center case is disposed forwardly of the axles of the propelling wheels.

Claims14

Dependent claims

A riding mower comprising:

a pair of right and left propelling wheels each having an axle;
a mower unit disposed forwardly of said axle;
an engine disposed rearwardly of said axle;
a center case receiving drive from said engine, said center case being disposed forwardly of said axle so as to define a longitudinal distance between said center case and said engine in a fore and aft direction of the riding mower;
a pair of right and left hydrostatic transmissions disposed on right and left sides of said center case, respectively, for receiving the engine drive from a drive distributor housed in said center case;
a pair of right and left side cases receiving the drive from said hydrostatic transmissions, respectively, said side cases being disposed laterally of said hydrostatic transmissions and extending rearwardly therefrom in a fore and aft direction of the riding mower so as to define a transversal distance between said right and left side cases;
and
a radiator mechanism disposed, in plan view, inside a pair of right and left frames extending in said fore and aft direction of the riding mower, wherein said center case and said engine are disposed inside said frames and said right and left side cases are disposed laterally and outside of said frames.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/389,790Filed 3 Sep 1999
Priority: JP 10-2489873 Sep 1998
Published: US 2003/0062212 A13 Apr 2003
Granted: 17 Jun 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B60K 17/105
Of fluid gearing: units comprising at least a part of the gearing and a torque-transmitting axle, e.g. transaxles
A01D 69/03
Driving mechanisms or parts thereof for harvesters or mowers: fluid
B60K 5/00
Arrangement or mounting of internal-combustion or jet-propulsion units
B60K 11/02
Arrangement in connection with cooling of propulsion units: with liquid cooling