| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the discharge of garbage between fixed cutting edges to eliminate the clogging of solid and the garbage between the fixed cutting edges. SOLUTION: A rotary cutting edge plate 5 rotating after receiving the garbage charged into a crushing chamber in a casing 1 and a fixed cutting edge ring 4 constituting a fixed cutting edge by surrounding the rotary cutting edge plate 5 are provided. A concave groove 10 forming the fixed cutting edge of the fixed cutting edge ring 4 is formed so that the width B of an open part 10a of the inner peripheral part is small and the width becomes larger toward the linner part, and an expanded part 10b is provided at the concave groove 10. |
