US Patent 10272583 Slitter, sheet cutting device, and sheet processing apparatus

A slitter comprising: an upper rotary blade; a lower rotary blade; an upper housing for holding the upper rotary blade; and a lower housing for holding the lower rotary blade, the slitter being constructed such that the both rotary blades revolve in a manner that a tip on a cutting surface side of the upper rotary blade and a tip on a cutting surface side of the lower rotary blade are rubbed together so that a sheet passing through between the both rotary blades is cut, wherein the upper rotary blade is cantilevered on the cutting surface side by a cantilevered supporting part and the lower rotary blade is cantilevered on a non-cutting surface side by a cantilevered supporting part.