Circular saw lower guard chip deflector

Details Circular saw lower guard chip deflector Circular saw lower guard chip deflector

1992-03-20

1993-08-17

Yost, Frank T.

Cutlery

Cutting tools

Saw

30390, B23D 4516

Patent

active

052357538

ABSTRACT:
A circular saw comprises a motor housing 13 and a shoe 15 attached to housing 13. An upper guard 17 fixed to housing 13 shields an upper portion of blade 25. A lower guard is pivotally mounted relative to the blade axis of rotation 27. The lower guard has an extended position (FIG. 1 ) for covering a lower portion of blade and retracted position (FIG. 2 ) for exposing the lower blade portion for cutting. A chip deflector 67 is formed on the radial extremity of the trailing edge 55 of lower guard 19 to prevent the build up of sawdust chips on trailing edge 55 by guiding the chips inwardly toward blade axis 27 and into the path of blade 25. As blade 25 rotates during cutting, the chips are collected in a gullet 82 between adjacent teeth 79 and are thereafter expelled from the saw

REFERENCES:
patent: 3123111 (1964-03-01), Mattson
patent: 3662796 (1972-05-01), Batistelli
patent: 3706332 (1972-12-01), George
patent: 3812584 (1974-05-01), Peter
patent: 4672746 (1987-06-01), Zeilenga
patent: 4675999 (1987-06-01), Ito et al.
patent: 4982501 (1991-01-01), Sauerwein et al.
patent: 5084972 (1992-02-01), Waugh

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