Attachment for drive shaft of rotary lawn mowers

Details Attachment for drive shaft of rotary lawn mowers Attachment for drive shaft of rotary lawn mowers

A - Human Necessities

01

G

56/36

A01G 3/06 (2006.01) A01D 50/00 (1980.01)

Patent

CA 1111660

ABSTRACT OF THE DISCLOSURE An attachment is provided for the lower end of the drive shaft of the motor of a conventional rotary lawn mower, edger, trimmer or the like; and preferably includes two or more nonmetallic cutting lines, such as monofilament fishing line of suitable diameter for rotation therewith in the cutting plane, although a single line may be effective for some purposes. Each nonmetallic cutting line is characterized by possessing an effective diameter, and of a material composition such as to render the line flexible and yielding to the extent that it is substantially incapable of causing damage or injury when contacting persons, animals, trees, etc. Novel means are provided detachably associating the line or lines to the member carrying it so that the same may be easily and rapidly replaced after wear, and also efficiently stored in suitable length when in the nonworking condition, the same including novel and highly efficient means whereby the effective working length of the line or lines may be lengthened at desired times as it becomes shortened during use, etc. A simplified form comprises a single spool located in coaxial alignment with the motor shaft, the spool having a single cutting strand centrally wound thereabout so as to present two free travelling ends extending oppositely of each other during the cutting or mowing operation, and or it may be marketed in the form of an attachment for ready substitution, permanent or otherwise, for the horizontally extending metallic cutting bar which is most often furnished as part of the original equipment of rotary lawn mowers.

346365

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