METHOD FOR PROCESSING WITHOUT CORNER RAFTER AND VALLEY RAFTER AND LATERAL BEAM PROCESSING MACHINE AND LATERAL BEAM CUTTING INSTALLATION

摘要

PROBLEM TO BE SOLVED: To perform processing without corner rafters and valley rafters by utilizing a cutter unit for processing without corner rafters and valley rafters without resulting in upsizing of an apparatus. ;SOLUTION: An underside cutter 187 is fitted on the front end of an underside arm 182 fitted movably in the direction Z to an underside cutter base 177 fitted movably in the direction Y to a column 174 movably in the direction X and revolution thereof is controlled around a shaft Y by every 45° unit in a range of totally 270° through a rack bar 195 performing stroke movement by means of three air cylinders 191-193 for revolution and a pinion gear 198 in a gear box 196. When processing without corner rafters is performed, the underside cutter 187 is pivoted and after it is elevated in the direction Y at a cutting starting position, it is moved obliquely in accordance with the slope of a roof in a plane YZ and at the same time, it is obliquely moved along the central line of the width of a blade after pivoting in the plane XZ to perform cutting while it is controlled for moving in the three shaft directions X, Y and Z.;COPYRIGHT: (C)1999,JPO