Notebook system

摘要

A notebook system wherein a stack of sheets is bound together using a plurality of disk fastening members insertable into openings of the stack of sheets to retain the sheets in the stack. The disk members have a substantially flat disk-like central surface portion and an enlarged continuous rim portion which extends around the periphery of the central surface portion of the disks. The rim portion extends outwardly in a direction perpendicular to the flat central portions of the disks, and the central surface portion has a radius which is larger than the thickness of a stack of sheets to be bound thereby. Covers for the notebook comprise a front cover and a rear cover which are arranged to have a stack of sheets therebetween. The rear cover has a closure member integrally formed therewith, the closure member being a cut-out member which is partly cut-out from the rear cover member and which is bendable around the edge of the rear cover so as to extend over the front cover, and is attachable to an outer surface of the front cover to serve as a closure for a notebook.