Circular saw blade

Abstract

In a circular saw blade which includes expansion and vibration damping slots, the slots have parallel side walls with an inclination with respect to the circular saw surface which inclination changes over the length of the slots.

Description

BRIEF DESCRIPTION OF THE DRAWING

The sole FIGURE is a perspective view of a saw blade section with a curved groove having inclined sidewalls in accordance with the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT

The FIGURE shows a saw blade section as seen at an angle from the top. Only a small area of the circumference of a circular saw blade tool body 1 is shown which includes a slot 3 which extends from the circumference 2 radially and wave-like inwardly and which has parallel slot walls.

Although opposite slot walls extend parallel, the angle of the slot walls relative to the surface of the saw blade changes over the length of the slots. The size of the angle as well as the orientation of the angle change between a positive and a negative orientation. The angle is designated with α. In the FIGURE, the angle α is marked twice that is one time at the right near the termination of the slot of the circumference 2 of the saw blade and also further to the left near a radially inwardly arranged section of the slot shown in the upper part of the drawing. As apparent from the drawing, the two angles α have opposite orientations (+ and −) that is the slot walls are tilted with respect to the surface of the tool body one to the right and the other to the left.

Claims

1. A circular saw blade (1) including expansion and vibration damping slots (3), said slots (3) having side walls with an inclination (α) with respect to the circular saw surface which inclination changes over the length of the slots.

2. A circular saw blade (1) according to claim 1, wherein the inclination angle (α) changes along the slot length with respect to the size as well at the inclination direction (+ and −) of the slot side walls and the blade surface.

3. A circular saw blade (1) according to claim 1, wherein at least one of the slots (3) is filled with a vibration damping material.