Harvesters – Cutting – Cutter members
Patent
1980-10-21
1982-05-18
Hirsch, Paul J.
Harvesters
Cutting
Cutter members
A01D 5518
Patent
active
043298346
ABSTRACT:
Blade structures useful particularly for mowing vegetation, the several embodiments of the present invention are useful with rotary lawn mowers and weed trimmers intended for mowing lawns and other vegetation with a maximum degree of cutting effectiveness and user safety. The present structures are preferably mounted to the drive shaft of a mower or trimmer in the place of a conventionally used cutting structure, usually without the need for modification of the mower or trimmer. Generally, the present structures include a plate member which acts to bend at least upper portions of vegetation downwardly to allow a cutting bar carried by the plate member to strike the vegetation at or below the bent portions to facilitate clean and rapid cutting of the vegetation. The plate member serves in most embodiments of the invention to prevent the cutting bar from striking other than a glancing blow to the extremities of a user which might actually come into contact with a cutting structure of a mower or trimmer, thereby imparting a safety margin to the use of the present structures which is not characteristic of conventional rigid and semi-rigid lawn mower blades.
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Darnell Kenneth E.
Hirsch Paul J.
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