Patent ID: 7731070

Claim:
Method of applying a rotationally driven pressure roller ( 4 ) onto a rotationally driven goods guiding roller ( 3 ), in a stretching equipment for thermoplastic films, whereby the pressure roller is advanced in the direction of the goods guiding roller ( 3 ) by at least one first piston-cylinder unit ( 7 ), which is pneumatically pressurized via a first control valve ( 11 ), so that after the advancement an axis-parallel remaining stroke exists between the pressure roller ( 4 ) and the goods guiding roller ( 3 ), characterized in that thereupon at least one second piston-cylinder unit ( 8 ), which is pneumatically pressurized via a second control valve ( 12 ), carries out the remaining stroke via a force amplifying lever ( 9 ) and via the first piston-cylinder unit ( 7 ) while maintaining the axis-parallelism, until a touching contact exists between the pressure roller ( 4 ) and the goods guiding roller ( 3 ), and that thereupon the pressure roller ( 4 ) becomes effective with a pressing force onto the goods guiding roller ( 3 ).