Lawn mower including an inclined blower

Patent metadata

Field	Value
Publication number	US-10694673-B2
Application number	US-201815920101-A
Country	US
Kind code	B2
Filing date	Mar 13, 2018
Priority date	Mar 13, 2017
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

A lawn mower including a frame, a prime mover supported by the frame, a plurality of wheels rotatably coupled to the frame to support the frame for movement along the ground, and a cutting deck supported by the frame. The cutting deck has a discharge opening. The lawn mower also includes a cutting blade rotatably mounted below the cutting deck and driven by the prime mover. The cutting blade is rotatable within a cutting plane. The lawn mower further includes a blower supported by the cutting deck adjacent the discharge opening to draw cut vegetation from under the cutting deck and discharge the cut vegetation away from the cutting deck. The blower is obliquely angled relative to the cutting plane.

First claim

What is claimed is:

1. A lawn mower comprising:
a frame;
a prime mover supported by the frame;
a plurality of wheels rotatably coupled to the frame to support the frame for movement along the ground;
a cutting deck supported by the frame, the cutting deck having a discharge opening;
a cutting blade rotatably mounted below the cutting deck and driven by the prime mover, the cutting blade being rotatable within a cutting plane; and
a blower supported by the cutting deck adjacent the discharge opening to draw cut vegetation from under the cutting deck and discharge the cut vegetation away from the cutting deck, wherein the blower defines an axis of rotation that is perpendicular to a direction of travel of the lawn mower and is obliquely angled relative to the cutting plane.

2. The lawn mower of claim 1 , further comprising a chute extending between the discharge opening and the blower.

3. The lawn mower of claim 2 , wherein the chute directs an airflow toward a central inlet of the blower.

4. The lawn mower of claim 1 , further comprising a collection unit coupled to the frame, wherein the collection unit is configured to collect vegetation cut by the cutting blade.

5. The lawn mower of claim 4 , further comprising a conduit extending from the blower to the collection unit to direct the cut vegetation to the collection unit.

6. The lawn mower of claim 1 , further comprising a bracket that is mounted to the cutting deck and rigidly supports the blower relative to the cutting deck at the oblique angle.

7. The lawn mower of claim 6 , wherein the bracket is a first bracket and the lawn mower further includes a second bracket coupled to the first bracket, wherein the second bracket extends upwardly and outwardly from the first bracket at the same oblique angle as the blower.

8. The lawn mower of claim 1 , wherein the blower is obliquely angled relative to the cutting plane by an angle approximately between 15 degrees and 75 degrees.

9. The lawn mower of claim 1 , wherein the blower is obliquely angled relative to the cutting plane by an angle of about 45 degrees.

10. The lawn mower of claim 1 , wherein the blower includes an impeller rotatably driven about an axis of rotation, wherein the axis of rotation of the impeller is obliquely angled relative to the cutting plane.

11. The lawn mower of claim 10 , wherein the blower further includes a housing assembly surrounding the impeller, and wherein the housing assembly is supported by the cutting deck, such that the impeller does not rely on the housing assembly for support.

12. The lawn mower of claim 10 , further including a belt drive arrangement having a first pulley mounted to a shaft of the impeller, a second pulley mounted on top of the cutting deck and connected to the first pulley by a belt, and two idler pulleys positioned between the first and second pulleys to help guide the belt, wherein the belt drive arrangement is positioned laterally in-line relative to the blower.

13. A lawn mower comprising:
a frame;
a prime mover supported by the frame;
a plurality of wheels rotatably coupled to the frame to support the frame for movement along the ground;
a cutting deck supported by the frame, the cutting deck having a discharge opening;
a cutting blade rotatably mounted below the cutting deck and driven by the prime mover, the cutting blade being rotatable within a cutting plane;
a bracket having a first end mounted atop the cutting deck and a second end being cantilevered from the cutting deck such that the second end is outside the outer periphery of the cutting deck; and
a blower positioned adjacent the discharge opening of the cutting deck to draw cut vegetation from under the cutting deck and discharge the cut vegetation away from the cutting deck, the blower including
an impeller mounted to the second end of the bracket, and
a housing assembly mounted to the bracket and surrounding the impeller such that the impeller does not rely on the housing assembly for support.

14. The lawn mower of claim 13 , further comprising a chute extending between the discharge opening and the blower, wherein the chute forms a ramp therebetween.

15. The lawn mower of claim 14 , wherein the chute directs an airflow toward a central inlet of the blower.

16. The lawn mower of claim 13 , further comprising a collection unit coupled to the frame, wherein the collection unit is configured to collect vegetation cut by the cutting blade.

17. The lawn mower of claim 16 , further comprising a conduit extending from the blower to the collection unit to direct the cut vegetation to the collection unit.

18. The lawn mower of claim 13 , wherein the blower is obliquely angled relative to the cutting plane.

19. The lawn mower of claim 13 , wherein the blower is obliquely angled relative to the cutting plane by an angle of about 45 degrees.

20. A collection system for use with a lawn mower including a frame, a cutting deck supported by the frame, a discharge opening defined in the cutting deck, and a cutting blade rotatably mounted below the cutting deck, wherein the cutting blade is rotatable within a cutting plane, the collection system comprising:
a blower configured to be mounted to the cutting deck adjacent the discharge opening, the blower including
a housing having an inlet and an outlet, and
an impeller positioned within the housing and defining an axis of rotation about which the impeller rotates,
wherein the axis of rotation is configured to be obliquely angle relative to the cutting plane of the cutting blade when the blower is mounted to the cutting deck;

a collection unit configured to be coupled to the frame, wherein the collection unit is configured to collect vegetation cut by the cutting blade; and
a conduit extending from the blower to the collection unit to direct the cut vegetation to the collection unit,
wherein the inlet is a central inlet that is aligned with the axis of rotation of the impeller, and wherein the outlet is offset from the axis of rotation and is tangential to the impeller.

21. The lawn mower of claim 20 , further comprising a bracket configured to mount to the cutting deck, wherein the bracket rigidly supports the blower relative to the cutting deck at the oblique angle.

22. The lawn mower of claim 21 , wherein the bracket extends upwardly and outwardly at the same oblique angle as the blower.

23. A blower for use with a lawn mower including a frame, a cutting deck supported by the frame, a discharge opening defined in the cutting deck, and a cutting blade rotatably mounted below the cutting deck, wherein the cutting blade is rotatable within a cutting plane, the blower comprising:
a housing having a central inlet and an outlet;
an impeller positioned within the housing and defining an axis of rotation about which the impeller rotates, the axis of rotation being aligned with the central inlet and configured to be oriented at an oblique angle relative to the cutting plane of the cutting blade; and
a bracket configured to mount to the cutting deck, the bracket supporting the impeller at the oblique angle relative to the cutting plane,
wherein the housing surrounds the impeller, and wherein the impeller is supported by the bracket such that the impeller does not rely on the housing for support.

24. The lawn mower of claim 23 , further comprising a chute extending between the discharge opening of the cutting deck and the blower, wherein the chute forms a ramp

Assignees

• Ariens Co

Inventors

• Berglund Brent P
• Schuller-Rach Matthew P

Classifications

• A01D34/66

  with two or more cutters · CPC title

• A01D2101/00

  Lawn-mowers · CPC title

• A01D43/077 Primary

  with auxiliary means, e.g. fans, for transporting the mown crop · CPC title

• A01D43/063

  in or into a container carried by the mower; Containers therefor (A01D43/077 takes precedence) · CPC title

• A01D34/71

  with means for discharging mown material (A01D57/26 - A01D57/30 take precedence; combined with means for gathering or loading mown material A01D43/06) · CPC title