Reciprocating saw blade having variable-height teeth and...

B - Operations – Transporting – 27 – B

Patent

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Details

B27B 33/02 (2006.01) B23D 61/12 (2006.01) B27B 33/10 (2006.01)

Patent

CA 2691130

A reciprocating saw blade, for use in a portable power reciprocating saw including a chuck for releasably engaging the saw blade, includes a tang having an elongated axis and being engageable with the chuck for attaching the saw blade to the reciprocating saw. The saw further includes a blade portion having a cutting edge that defines a plurality of cutting teeth. The cutting teeth define a repeating pattern of successive groups of teeth. Each group of teeth is less than about a half inch in length, and includes a plurality of laterally offset teeth, at least one relatively high first tooth and at least one relatively low second tooth. Prior to tooth set, the at least one relatively high first tooth is at least about 0.002 inch higher than the at least one relatively low second tooth.

La présente invention concerne une lame de scie alternative à utiliser dans une scie alternative portative, pourvue d'un mandrin s'engageant de manière amovible avec la lame de la scie, qui comprend un tenon doté d'un axe allongé et susceptible de s'engager dans le mandrin pour fixer la lame de scie à la scie alternative. La scie se compose aussi d'une partie lame pourvue d'un bord tranchant qui définit une pluralité de dents de coupe. Les dents de coupe définissent un motif répété de groupes successifs de dents. Chaque groupe de dents a une longueur inférieure à un demi-pouce et comprend une pluralité de dents décalées latéralement, à savoir au moins une première dent relativement haute et au moins une deuxième dent relativement basse. Avant de mettre en place l'ensemble de dents, la première dent relativement haute possède une hauteur supérieure de 0,002 pouces à la dent relativement basse.

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