| 摘要 |
<p>PURPOSE: To enable an easy change when partial damage or attrition is generated, by constituting an inclined cutter means by many mutually adjacent cutter segments to be supported by respective supporting blocks capable of being housed in seats formed on a non-rotatable unit. CONSTITUTION: Movable supports 11, 19 and 21 are so arranged as to approach a cylindrical body 17, and the supports support an inclined cutter means 33 to be interlocked with a cutter 17E of the cylindrical body 17. The inclined cutter means 33 is composed of cooperating cutter segments 33 respectively supported by supporting blocks 25. The blocks 25 are housed in seats 22 and 23 in the supports 11, 19 and 21 and extend parallel to the cylindrical, body 17.</p> |
