Metal-cutting saw blade having strengthened gullet and...

B - Operations – Transporting – 23 – D

Patent

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Details

B23D 61/02 (2006.01) B27B 33/08 (2006.01)

Patent

CA 2374640

A rotary saw blade (20) for cutting a metal workpiece. The blade includes a generally circular main body plate (22) having an opening (24) at the center of the plate and a plurality of raised tooth support members (26) disposed about the periphery of the plate. Each of the support members has a tooth attachment portion (27) generally facing the direction of rotation of the blade and a peripheral guide member (32) extending away from the tooth attachment portion. A plurality of cutting teeth (28) are each mounted on one of the tooth attachment portions. Each of the tooth support members define gullets (60) between each of the guide members and extending generally radially inwardly toward the center of the blade. The gullets are further defined by a throat area (70) and a rounded area (62), wherein the throat area defines a gap width (10) between a peripheral guide member and a tooth.

L'invention concerne une lame de scie ronde (20) destinée à couper une pièce d'usinage métallique. La lame comprend une plaque de corps principal généralement circulaire (22) dotée d'une ouverture (24) située au centre de la plaque et une pluralité d'éléments de support de dent en saillie (26) disposés autour de la périphérie de la plaque. Chaque élément de support comprend une partie de fixation de dent (27) placée généralement dans le sens de rotation et un élément guide périphérique (32) s'étendant de manière à s'éloigner de la partie de fixation de dent. Chaque dent de la pluralité des dents de coupe (28) est montée sur une des parties de fixation de dent. Chaque élément de support de dent définit des gorges (60) entre chaque élément guide et s'étendant généralement de façon radiale à l'intérieur, en direction du centre de la lame. Les gorges sont en outre définies par une zone de col (70) et une zone ronde (62), la zone de col définissant une largeur de trou (10) entre un élément guide périphérique et une dent.

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