| 摘要 |
PROBLEM TO BE SOLVED: To provide a crushing roll of a crusher having a crushing tooth constructed so that an excessive force is not applied to a pin for bonding a holder to a bit. SOLUTION: A combination of a bit 14 and a holder 13 is provided on a periphery of a rotary roll 44 as a crushing tooth of a crushing roll 4. The holder 13 is fixed onto the periphery of the crushing roll 4, and has an anchor part 16. The bit 14 is a crushing tooth for a material to be treated, is stopped freely detachably to the holder 13, and has jaws 15. The jaws 15 are engaged with the anchor part 16 of the holder 13, the anchor part 16 supports the jaws 15, and protects the pin 19 from an impact applied to the bit 14 when a material to be treated is crushed.
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