Rotary cutting head for mowers equipped with flexible cutting bl

Details Rotary cutting head for mowers equipped with flexible cutting bl Rotary cutting head for mowers equipped with flexible cutting bl

1976-09-10

1978-07-04

Peters, Jimmy C.

Cutlery

Cutting tools

With blade moving means

56 127, A01D 5518, B26B 2700

Patent

active

040979911

ABSTRACT:
An improved cutting head for rotary mowers, trimmers and edgers for vegetation is constructed with a generally cylindrical rotating body from which flexible flair-like cutting blades extend radially in a plane orthogonal to the rotational axis. The flails are preferentially formed of nylon monofilament and exit through grommets secured in the rotating body. The inner and outer portions of the channels through the grommets are flared into curvilinear funnels to allow the blade filaments to be flexed in any direction without undue stress. The flails are additionally protected by circumferential flanges running around the periphery of the cutting head, above and below the cutting plane, which project to radial dimensions beyond the outer lips of the grommets to prevent the filaments from being trapped between the body and a foreign object.

REFERENCES:
patent: 2034917 (1936-03-01), Miller
patent: 3664102 (1972-05-01), Reber
patent: 3826068 (1974-07-01), Ballas et al.
patent: 4020552 (1977-05-01), Mizuno
patent: 4024635 (1977-05-01), Mizuno
patent: 4043103 (1977-08-01), Lakin

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