Patent ID: 7552887

Claim:
An information medium comprising: a pair of tape reels each having a hollow cylindrical reel body having a magnetic tape wound therearound, and a hollow cylindrical hub disposed at a central portion of the reel body in a manner such that opposite ends thereof protrude from the reel body; a casing body rotatably accommodating the pair of tape reels in a state holding opposite ends of the hubs by a pair of main boards facing each other, one of the main boards being formed with a pair of annular protrusions, for positioning associated ones of the ends of the hubs; a pair of sheet materials each having a pair of insertion holes formed therein, and arranged in the casing body in a manner sandwiching opposite ends of each reel body in a state having the opposite ends of the hubs inserted into the insertion holes; and a pair of plate-shaped urging members arranged between one of the sheet materials, which is disposed on a side opposite to an insertion side of a drive shaft that drives the tape reel, and the one of the main boards, each urging member being formed with an insertion hole that urges the ends of the reel bodies via the one of the sheet materials, in a state thereof in which each urging member has an associated one of the ends of the hubs inserted into the insertion hole thereof, the urging member being configured to be capable of being fixed to the one of the main boards, by being fitted on an outer periphery of an associated one of the annular protrusions.