Patent ID: 9643339
Date: 2017-05-09
CPC Classifications: B02C,B29B,B29L,D21B,D21D

Claim:
1. A sheet manufacturing apparatus comprising: a defibration unit including a rotating unit and a housing that relatively rotatably supports the rotating unit, the housing including a cover portion and a fixing unit that is attached to the cover portion and is spaced apart from the rotating unit in a direction perpendicular to an axial direction of the rotating unit so as to form a gap between the rotating unit and the fixing unit, the defibrating unit being configured to cause the rotating unit to rotate and dry-defibrate a defibration object; and a sheet forming unit configured to form a sheet by depositing at least a part of defibrated material that has been dry-defibrated, the rotating unit including a plurality of rotating plates each of which has a base section located on a side of a central rotation axis and a plurality of protruding sections that protrude out in a direction drawing away from the central rotation axis, the rotating plates being stacked such that the protruding sections are in contact in the axial direction in which the central rotation axis extends.