| 摘要 |
A mulching unit for a mulching apparatus includes at least one cutting assembly or hammer having a rotatable support element and at least two cutting elements spaced apart from one another by a predetermined gap that allows debris to pass between the cutting elements, thereby increasing efficiency and enabling higher rotating speeds for sustained amounts of time. Alternatively, the mulching unit includes at least one cutting assembly or hammer having a rotatable support element and at least one cutting element releasably mounted on the support element to facilitate easy replacement of cutting elements without replacement of corresponding support structure. In addition, the mulching unit may include a tubular assembly including inner and outer tube members, the outer tube member including at least one cutting assembly. A cutting hammer or assembly used with the mulching apparatus may include a support element having a collar defining an inner surface rotatably and slidably mounted to a support rod, and at least first and second cutting elements provided on the collar and spaced apart from one another by a predetermined gap.
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