Saw-blade fixation device

摘要

The invention relates to a device for fixing a saw-blade (3) provided with an opening (4) to a carrier (1) which is connected to a drive device to make a reciprocating movement, wherein the device comprises: a wall (2) extending in the direction of movement which is suitable for contact with a side of the saw-blade (3); a fixation body (10) which is rotatable opposite the wall (2) around a shaft (9) extending perpendicularly of the direction of movement and parallel to the wall (2) and which is provided with a protrusion (12) which is movable into the opening (4) arranged in the saw-blade (3); and urging means (18) for urging the fixation body (10) to a fixation position wherein the protrusion (12) extends into the opening (4) arranged in the saw-blade (3). Fixation herein takes place because via the sphere (12) the saw-blade (3) generates a moment in clockwise direction relative to the shaft. This moment is counteracted by a moment that is generated by the friction between the actuating rod and the contact surface.