Retractor for rear stop crosspiece of sheet steel shears has support arms and table connected by lifter

摘要

The sheet metal shears crosspiece retraction system comprises a lifter (20) and an inclined table (4) rigidly mounted on the upper blade holder. The lifter has a frame (2) whose lower part (21) is located upstream of the table rear end and is fixed to each of the ends of the support arms. The frame upper part (22) includes a pivoting stop (18) at each of its ends. The pivoting stop positions the support arms in the horizontal position when the stop crosspiece is in the retracted position.