High-efficiency lawn maintenance tool

Patent metadata

Field	Value
Publication number	US-2016353659-A1
Application number	US-201615174738-A
Country	US
Kind code	A1
Filing date	Jun 6, 2016
Priority date	Jun 5, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

A high-efficiency lawn maintenance tool includes a frame and a deck attached to the frame. A plurality of ground engaging members are attached to the frame, and a power source is attached to one of the frame and the deck, wherein the power source is connected to a drive shaft that passes through the deck. A high-efficiency blade system is attached to the drive shaft. A controller is electrically connected to the power source, and the controller is configured to correlate the load and/or the mower groundspeed independent of an operator's control. Other examples include reduced operating speeds of the drive shaft and commensurate reduced tip speeds of a set of cutting blades.

First claim

1 . A high-efficiency lawn maintenance tool comprising:
a frame; a deck attached to the frame; a plurality of ground engaging members attached to the frame; a power source attached to one of the frame and the deck, wherein the power source is connected to a drive shaft that passes through the deck; a high-efficiency blade system attached to the drive shaft; and a controller electrically connected to the power source, wherein the controller is configured to correlate the load and/or the mower groundspeed independent of an operator's control.

2 . The high-efficiency lawn maintenance tool of claim 1 , wherein the controller is configured to vary both the speed and the torque delivered from the power source to achieve an optimal grass cutting condition independent of an operator's control.

3 . The high-efficiency lawn maintenance tool of claim 1 , wherein the high-efficiency blade system includes cutting blades that do not require additional tools to connect and disconnect the cutting blades.

4 . The high-efficiency lawn maintenance tool of claim 1 , further including a bagging attachment and a brush configured to sweep grass clippings into the bagging attachment.

5 . The high-efficiency lawn maintenance tool of claim 4 , further including an adjustment mechanism configured to position a height of a number of brush strand tips to about the same height as the cutting blades.

6 . The high-efficiency lawn maintenance tool of claim 1 , wherein the depth of the deck is about equal to the height of the high-efficiency blade system attached to the drive shaft.

7 . The high-efficiency lawn maintenance tool of claim 1 , wherein the operating speed of the drive shaft is about 2,200 revolutions per minute.

8 . The high-efficiency lawn maintenance tool of claim 1 , wherein the operating tip speed of the tips of the cutting blades is about 12,000 feet per minute.

Assignees

• Mtd Products Inc

Inventors

• Schaedler Axel

Classifications

• A01D34/6806

  Driving mechanisms (for the cutters A01D34/76) · CPC title

• A01D2034/6825

  being tyre driven · CPC title

• A01D34/824

  Handle arrangements · CPC title

• A01D34/76

  Driving mechanisms for the cutters · CPC title

• A01D43/0636

  Flexible containers · CPC title