| 摘要 |
PURPOSE:To increase a life of a blade, by using the fixed blade in the lateral direction and the auxiliary blade in the longitudinal direction. CONSTITUTION:A blade is constituted by a fixed blade 15 both having a lateral ridge 24 and placing a work, moving blade 14 slided with a side face 25 to a plane containing the ridge 24 and movable shuttling in the direction almost at a right angle with the ridge 24 further having a stepped part to a side of the blade 15, and an auxiliary blade 19 in which a receiving face faced to a stepped part 26 is equipped and a longitudinal ridge 31 crossing almost at a right angle with the ridge 24 is provided to the receiving face while the ridge 31 is moved along the ridge 24. Accordingly, the blade 15 is used for the lateral direction required for large shearing force while the blade 19 is used for the longitudinal direction only required for small shearing force, and a work can be shared in the lateral and longitudinal direction while a life of the blade can be increased. |
