Metal working – Filing
Patent
1991-05-31
1993-05-04
Bishop, Steven C.
Metal working
Filing
407 31, B23D 7102
Patent
active
052069770
ABSTRACT:
There is disclosed a saw blade mounting assembly of this invention for a tire rasping apparatus, which comprises at least one rotatable cap and a plurality of pins extending orthogonally from the cap to receive the saw blade mounting assembly thereon. The saw blade mounting assembly comprises at least one saw blade, a spacing member and at least one retaining blade. The saw blade has an inner smooth edge, an outer edge and a plurality of bores disposed therealong in alignment to receive corresponding ones of the plurality of the pins. The outer edge of the saw blade has a plurality of cutouts evenly spaced therealong and extending towards the inner edge to form a plurality of teeth. Each tooth is formed between successive cutouts. The spacing member has a plurality of bores disposed therealong in alignment to receive corresponding ones of the plurality of the pins. At least one retaining blade has inner and outer edges, opposing side surfaces, a plurality of bores disposed therealong in alignment to receive corresponding ones of the plurality of the pins and a plurality of attachment pawls. The attachment pawls extend from the opposing side surfaces and are spaced along the retaining blade in alignment with corresponding ones of said plurality of cutouts. The retaining blade, saw blade and spacing member are assembled together such that the bores of the spacing member and the retaining blade are mounted on the pins, and one of the opposing side surfaces of the retaining blade abuts the saw blade and each of the plurality of attachment pawls extend through and engages a corresponding one of the cutouts, whereby the saw blade is secured to the rotatable cap.
REFERENCES:
patent: 3528153 (1970-09-01), Walter
patent: 3618187 (1971-11-01), Jensen
patent: 3879825 (1975-04-01), Jensen et al.
patent: 4019234 (1977-04-01), Jensen et al.
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