Saw blade for a handheld working tool

Abstract

A saw blade (1) intended for a handheld working tool, and the saw blade comprises a blade body (2) having an outer periphery (3) with a number of teeth (4) arranged by fastening a separate part or through a local addition of a surface lining material. The teeth occupy less than 0,2 times of the periphery (3) of the saw blade and in that rotation-wise in front of at least a tooth (4) there is a notch (5) that runs towards the center of the saw blade and this notch has a narrow opening (6) at the periphery and preferably widens considerably inside the opening to a widened part (7) and the widened part has a width (b) that is greater than 1,3 times the width (a) of the opening. Rotation-wise in front of the narrow opening (6) the outer periphery (3) of the blade body (2) has a maximum radius essentially from a center (11) of the saw blade and this maximum radius is maintained during at least 55% in succession, and preferably during at least 70%, of a peripheral distance from the narrow opening to the start of the next tooth and the tooth (4) has an edge (8) at its outer foremost end, i.e. first in the direction of rotation and a front side (9) of the tooth (4) at the edge (8) forms a negative rake angle α from the edge and to the center (11) of the saw blade, and the angle α is greater than 0 degrees and preferably greater than 8 degrees but smaller than 30 degrees.

Dependencies are inferred from the claim text.