| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutter driving a cutter blade with a simple structure. SOLUTION: A holder 3 holding a cutter blade 2 is formed so that guide grooves 4 and 5 are moved aslant along a guide block 6a (not shown) and a roller 6. A power of a drive motor 8 is transmitted to a nut 14 through pulleys 11 and 12 and a belt 12 to produce a thrust by a screw 17 engaged with the nut 14 so as to move a connecting rod up and down. A bearing is disposed between the nut 14 and an outer tube 15. The connecting rod 16 is connected to a connection piece 3a, and the connection piece 3a of the holder 3 connected rotatably to a connection shaft 7a. Thus, when the connecting rod 16 is moved up and down in the arrow direction of Y, the cutter blade 2 is also moved up and down in connection with the connecting rod. |
