Lawn mower

Harvesters – Motorized harvester – Having motor on ground-supported carrier

Patent

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Details

56295, 563201, A01D 3468, A01D 3473, A01D 3482, A01D 6700

Patent

active

051844516

ABSTRACT:
The invention relates to a lawn mover, comprising a body portion (1), a power unit (14) mounted on the body portion, and blade members (2), rotating substantially in a horizontal plane and fixed to the lower end of a substantially vertical driving shaft (10) inside a cutting chamber (12) provided by body (1). The inner surface of said cutting chamber (12) in body portion (1) is provided with a material (15) having a low friction coefficient. The power unit (14) preferably comprises a permanent magnet direct-current motor. Blade members (2) are made of a sheet-like material. The blade member mounted on either side of said driving shaft (10) of blade (2) is, from its end and over part of its length, designed in a manner such that, as seen in its rotating direction, the leading edge of the blade lies at a level substantially lower than the rest of the blade. The plane of rotation defined by said lower leading edge is located approximately 10-15 mm above the bottom edge of cutting chamber (12).

REFERENCES:
patent: 3212244 (1965-10-01), Wilgus
patent: 3729912 (1973-05-01), Weber
patent: 4312421 (1982-01-01), Pioch
patent: 4887420 (1989-12-01), Cerny, Jr. et al.

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