Patent ID: 7127978
Filing Date: 2006-10-31
Classification: B23D,Y10T

Abstract:
1. Circular saw machine comprising a saw blade ( 1 ) and a drive shaft ( 2 ) to which the saw blade is removably and interchangeably mounted, and at least one rearward saw blade guide ( 4 ) and at least one forward saw blade guide ( 5 ) that contact two side surfaces of the saw blade ( 1 ), the saw blade guides ( 4 , 5 ) respectively have at least one contact surface ( 6 ) to be abutted on the respective side surface of the saw blade ( 1 ), and for sawing, the drive shaft ( 2 ), with the saw blade thereon, is rotated in a drive housing arranged for back and forth movement in a rotation plane of the blade, the forward saw blade guide ( 5 ) is connected to the drive housing so that the forward saw blade guide is pivotable away from the saw blade ( 1 ); a radial distance between the contact surfaces ( 6 ) of the saw blade guides ( 4 , 5 ) and the drive shaft ( 2 ) is respectively adjustable in predetermined defined positions for matching different diameter saw blades, at least one of the saw blade guides ( 4 , 5 ) is installed on a mounting ( 12 ) that is pivotable in a direction parallel to the plane of the saw blade on the saw blade guide ( 4 , 5 ), with the mounting ( 12 ) being fixable at a plurality of predetermined pivot angles, the forward saw blade guide ( 5 ) is pivotable away from the saw blade ( 1 ) by a hinge ( 8 ), a hinge pin located along a pivot axis of the hinge ( 8 ) being adjustable by an eccentric mounting in order to set a distance between the rearward and the forward saw blade guides ( 4 , 5 ) for matching different thicknesses of the saw blade ( 1 ).