To realize a cover structure capable of constituting the cover of a file and other stationery using a backbone, a front cover and a back cover mutually provided as separate bodies while holding user's convenience.
The cover structure is equipped with a spine member 11, which has the backbone 111 and attaching parts 114 and 115 connected to the backbone 111 through hinges 112 and 113, and the front cover 12 or the back cover 13 separate from the backbone 11. The attaching parts 114 and 115 and the edge parts 12a and 13a of the front cover 12 and the back cover 13 are superposed on the edge parts 114a and 115a of the attaching parts 114 and 115 from the inside to be bonded to the edge parts. Thick walled parts 121 and 131 are set in thickness so as to bring the outer surfaces of the front and back covers 12 and 13 and the outer surfaces of the edge parts of the parts 114a and 115a of the attaching parts 114 and 115 to almost continuous inclined outer surfaces when the front and back covers 12 and 13 and the attaching parts 114 and 115 are bonded. These thick-walled parts 121 and 131 are formed to the front and back covers 12 and 13 along the edge sides of the edge parts 114a and 115a of the attaching parts 114 and 115.
SASAHARA YASUSHI
WADA TAKAO
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