| 摘要 |
A combinative cutting wheel of a rotary cutter of paper shredder is composed of two sets of edge rings having cutting edges on outer rings thereof, and a plastic base ring having a spacer. A center of the aforementioned plastic base ring is provided with a shaft hole which can fit with a polygonal shaft rod. The two sets of edge rings are abutted on each other and then latched on the plastic base ring to form an integral body. The two edge rings constituting the cutting wheel are pre-installed on the plastic base ring having the spacer to form an integrated cutting wheel having the spacer, enabling the two blades and the spacer which would be installed separately to become one component, so as to simplify an assembling procedure for the rotary cutter. As the plastic base ring made by a light material is used to replace a main body of blade for the assembled structure using the edge rings and the plastic base ring, an original paper-cutting function of the cutting wheel will not be affected, and an amount of steel material to be used can also be decreased to reduce a weight of the cutting wheel, thereby reducing an entire weight of the rotary cutter after being assembled.
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