Lawn mower

Patent metadata

Field	Value
Publication number	US-10036303-B2
Application number	US-201715606012-A
Country	US
Kind code	B2
Filing date	May 26, 2017
Priority date	Sep 2, 2016
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

A lawn mower includes a pair of left and right main frames 17 , an engine E mounted to the pair of left and right main frames 17 , a radiator for cooling water that cools the engine E, a cooling fan 11 for feeding cooling air to the radiator, and a hood 9 accommodating the engine E, the radiator and the cooling fan 11 . An air deflector plate 34 is provided between the pair of left and right main frames 17 and configured to change direction of cooling exhaust air flowing toward a ground surface.

First claim

The invention claimed is:

1. A lawn mower comprising:
a pair of left and right main frames;
an engine mounted to the pair of left and right main frames;
a radiator for cooling water that cools the engine;
a cooling fan for feeding cooling air to the radiator;
a hood accommodating the engine, the radiator and the cooling fan; and
an air deflector provided between the pair of left and right main frames and configured to change direction of cooling exhaust air flowing toward a ground surface,
wherein in plan view, the air deflector is provided between one of the pair of left and right main frames and a lateral side wall of the engine associated with the one of the pair of left and right main frames.

2. A lawn mower comprising:
a pair of left and right main frames;
an engine mounted to the pair of left and right main frames;
a radiator for cooling water that cools the engine;
a cooling fan for feeding cooling air to the radiator;
a hood accommodating the engine, the radiator and the cooling fan; and
an air deflector provided between the pair of left and right main frames and configured to change direction of cooling exhaust air flowing toward a ground surface,
wherein the air deflector comprises a plate-like member that extends along a plane from one to the other of the pair of left and right main frames; and
the air deflector is tilted to be disposed more downward as it approaches the other main frame.

3. The lawn mower of claim 2 , wherein at an end portion of the air deflector on the side of the other main frame, there is formed a downwardly bent portion.

4. A lawn mower comprising:
a pair of left and right main frames;
an engine mounted to the pair of left and right main frames;
a radiator for cooling water that cools the engine;
a cooling fan for feeding cooling air to the radiator;
a hood accommodating the engine, the radiator and the cooling fan; and
an air deflector provided between the pair of left and right main frames and configured to change direction of cooling exhaust air flowing toward a ground surface,
wherein the air deflector is supported in cantilever manner to one main frame of the pair of left and right main frames.

5. A lawn mower comprising:
a pair of left and right main frames;
an engine mounted to the pair of left and right main frames;
a radiator for cooling water that cools the engine;
a cooling fan for feeding cooling air to the radiator;
a hood accommodating the engine, the radiator and the cooling fan; and
an air deflector provided between the pair of left and right main frames and configured to change direction of cooling exhaust air flowing toward a ground surface,
wherein the air deflector includes a flat face portion that is tilted to be disposed more downward as it approaches from one to the other of the pair of left and right main frames and a perpendicular face portion that extends downwards from an end portion of the flat face portion on the side of the one main frame.

6. The lawn mower of claim 5 , wherein a lower end portion of the perpendicular face portion does not protrude downward beyond a lower end of the one main frame.

7. The lawn mower of claim 5 , wherein in a front/rear direction of a vehicle body, the flat face portion has a length longer than a length of the perpendicular face portion.

Assignees

• Kubota Kk

Inventors

• Shiraga Takahiro
• Yoshida Seiya

Classifications

• B60K11/06

  with air cooling · CPC title

• F01P11/12 Primary

  Filtering, cooling, or silencing cooling-air · CPC title

• A01D2101/00

  Lawn-mowers · CPC title

• A01D34/68

  with motor driven cutters or wheels · CPC title

• A01D2034/6843

  Control levers on the handle of the mower · CPC title