Saw and saw blade

摘要

A wall saw includes a saw head which is displaceable longitudinally on a running rail and has a swivelable saw arm and a saw blade with cutting elements which is detachably fastened to the saw arm. The saw blade is rotatable by means of a drive unit which is mounted on the saw arm and which communicates with a drive arrangement. The saw blade is fastened to the saw arm via a coupling formed of two flange halves (11,17) which slide one inside the other and which can be connected with one another in a detachable manner, one flange half (11) being fastened to the flat side of the saw blade facing the saw arm and the second flange half (17) being arranged at the saw arm.