| 摘要 |
PROBLEM TO BE SOLVED: To efficiently crush a woody system chip material, to enhance wearing-resistance of a blade tip, to suitably confirm inversion and exchange timing by visual recognition and to be economically used. SOLUTION: Mounting holes 2 for mounting to a rotation plate rotated by a main rotation shaft in a crushing chamber are formed at two positions becoming vertically symmetry and V grooves 6 are provided on blade tip surfaces 3 at both upper and lower ends. Further, a display groove 7 for making the limit of abrasion visually recognizable is formed on a surface 4 left from the mounting hole 2 with a predetermined distance. COPYRIGHT: (C)2006,JPO&NCIPI
|
