Grass trimmer

Details Grass trimmer Grass trimmer

1991-06-06

1992-04-14

Watts, Douglas D.

Cutlery

Cutting tools

With blade moving means

30347, B26B 700, B26B 900, B26B 1300

Patent

active

051035618

ABSTRACT:
A grass trimmer having a cutting blade mounting head portion in which an output is disposed, and a cutting blade mounting member is provided for mounting a cutting blade. The output shaft has a relative rotation preventing engagement portion formed on a lower portion thereof, and a fitting centering portion formed on a portion of the output shaft which is immediately above and adjacent to the relative rotation preventing engagement portion. The cutting blade mounting member has a central hole extending therethrough, and the inner periphery of the central hole has a fitting portion and a coaxial engagement portion, both formed thereon, the fitting portion being capable of fitting on the relative rotation preventing engagement portion of the output shaft, and the coaxial engagement portion being engageable with the fitting centering portion of the output shaft.

REFERENCES:
patent: 3781991 (1974-01-01), Stretton et al.
patent: 4300336 (1981-11-01), Miyata
patent: 4633658 (1987-01-01), Nogawa
patent: 4736573 (1988-04-01), Seck
patent: 4881363 (1989-11-01), Terai et al.

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