| 摘要 |
<p>PURPOSE:To facilitate adjustment of assembly and to perform positional control of a cutter accurately by arranging a shaft body eccentrically at one end of a rotary shaft then coupling one end of a lever rotatably to the shaft body and pivoting the other end of the lever to a cutter holding means. CONSTITUTION:Rotation of the drive shaft of a motor M is transmitted to a shaft 303 to rotate a pulley 311 clockwise so as to rotate a pulley 139 similarly. Consequently, the shafts 133, 138 of a lower right side drive means 130 rotate integrally and an eccentric shaft 132 rotates eccentrically around the axis of the shaft 138. The rotary motion is transmitted as linear motion in the direction T to a pin 114 through a lever 137 and a cam follower 131 thus moving the right side of a cutter 2a in the direction T. Similarly, rotation of the drive shaft of the motor M is transmitted through a left side drive/transmission means 350 to a lower left side drive means 150 thus moving the left side of the cutter 2a synchronously in the direction T.</p> |
