ROUND BAR BLADE AND CUTTER HEAD

摘要

A round bar blade (10) and a cutter head (8) provided especially for the same are described. The blade has a shank with a generally round cross-section for being fixed by clamping means (28, 30) in a blade bore (12) of the cutter head (8). A substantially planar positioning surface (38) serving as an engagement surface for the clamping means (28, 30) is formed along the shank length in the extension of a cutting face (43) formed on the cutting end (40) of the round bar blade (10) parallel to the longitudinal blade axis. The cutting face (43) and the positioning surface (38) lie in one and the same plane parallel to the longitudinal blade axis. They are not reground during use and can therefore have a coating which increases the serviceable life of the blade. The clamping means are wedging devices which press with their clamping surface against the positioning surface (38) of the round bar blade (10) in the same direction in which the load during operation also acts. The round bar blade (10) and the cutter head (8) can be produced at low cost, the round bar blade has a long serviceable life, can be easily set up in the cutter head (8) and also maintains its set-up during operation under load.