B - Operations – Transporting – 23 – D
Patent
B - Operations, Transporting
23
D
143/71
B23D 61/00 (2006.01) B23D 61/12 (2006.01) B27B 33/02 (2006.01)
Patent
CA 1277573
ABSTRACT OF THE DISCLOSURE The present invention relates to a saw blade comprising a right-set tooth which is bent to the right, and a left-set tooth which is bent to the left relative to the running direction of the saw blade, in combination with an unset tooth which is not bent transversely. In addition, there is a difference in height in the direction of cut of the saw blade and in the direction of set width. A set tooth is provided immediately preceding an unset tooth so that a cutting action can be carried out alternately by a left-set tooth and by a right-set tooth, suitably repeated Accordingly, the chips are more reduced in size, which improves the case with which they are discharged. The positioning of the tooth immediately preceding an unset tooth along the length of the saw blade such that all teeth are set in the same direction is avoided, and both left-side abrasion and right-side abrasion are produced alternately in the unset teeth, with the overall effect of even abrasion. Accordingly, in comparison with conventional saw blades, a cut made with the saw blade of the present invention hardly veers from the path of the cut. This feature is especially effective in high speed cutting and heavy cutting.
505324
Kawabata Katsuhiko
Takegawa Yoshikazu
Tsujimoto Susumu
Yoshida Sumio
Amada Company Limited
Gowling Lafleur Henderson Llp
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