SHEARS FOR CUTTING SHEET MATERIAL Russian patent published in 1997 - IPC

FIELD: plastic metal working. SUBSTANCE: shears has bed 1 with table 2, knife 3 fixed to the table, slide 4 with top knife 5, drive 6 for moving the slide, and device 17 for changing an angle of inclination of the top knife 6 to the bottom one made up as a replaceable cell of Z-shaped cross-section 18, mounted on slide 4. The bearing surfaces of cell 18, which are in a contact with slide 4 and knife 5, are at an angle to each other that defines the inclination of top knife 5 to bottom knife 3. EFFECT: enhanced efficiency. 2 dwg , 1 tbl