| 摘要 |
PURPOSE: An ergonomic classbook is provided to optimize functionality and stability of the classbook, and to effectively prevent abrasion and deformation of the classbook even if the classbook is used for a long time. CONSTITUTION: The ergonomic classbook(1) is comprised of a double spring member(4) for fixing an inner member(11); a board(2) mounted to the spring member together with the inner member for fixing the spring member to an outer sheet(12); a rivet(3) for fixing the board with the outer sheet, a page marking lace inserted a bore drilled in the board; a transparent pocket part(8) for transmitting various memo and message, a document holder, and a resin board for prevent the secession of the inner member from the spring member.
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