# US 6,719,086 B1 · Variable speed friction drive for lawnmower

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- Number: US 6,719,086 B1
- Document ID: US6719086B1
- Status: Granted
- Kind: B1
- Application number: 10/037,181
- Filed: 2001-10-23
- Granted: 2004-04-13
- Earliest claimed: 2000-11-06
- Inventors: Jonathan Melven Kemp
- Web page: https://patentgrep.com/patent/US6719086B1

## CPC

- F16H 15/10: in which the axes of the two members cross or intersect
- A01D 69/00: Driving mechanisms or parts thereof for harvesters or mowers (driving mechanisms for the cutters of mowers or harvesters A01D34/00)
- B60Y 2200/225: Walk behind vehicles, e.g. motorized wheel barrows
- F16H: GEARING
- A01D: HARVESTING; MOWING
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY

## Abstract

A drive system for propelling a lawnmower which includes a chassis, a driveshaft, a pair of ground engaging wheels and means for moving the ground engaging wheels into direct contact with the driveshaft. The driveshaft is mounted firmly in the chassis, allowing the use of a variable speed transmission that rotates the driveshaft at different speeds; the selection of these speeds to be controlled by the operator. The ground engaging wheels are moved by the operator into direct contact with the driveshaft to accomplish the propulsion of the lawnmower.

## Claims

### Claim 1

A drive system suitable for propelling a high-wheel lawnmower, comprising:
(a) a rotating drive shaft
(b) a chassis
(c) said rotating driveshaft mounted in said chassis in a fixed position
(d) two ground engaging wheels mounted on a wheel support
(e) said wheel support having means for moving said ground engaging wheels into contact with said driveshaft.