Patent ID: 8875907

Claim:
A storage cell that accommodates a plurality of data cartridges in a row, comprising: a housing defining an enclosed storage area that accommodates i) a first one of the data cartridges stored in a rear storage position adjacent a closed rear end of the housing and remote from an open end of the housing, and ii) a second one of the data cartridges stored in a front storage position adjacent the open end of the housing and remote from the closed rear end of the housing, the rear storage position and the front storage position defining a row, said housing having a side surface, the side surface extending from the open front end to the closed rear end of the housing and defining an edge of the rear storage position and a corresponding edge of the front storage position; a side surface hole located on the side surface; and a regulating member that regulates storage of a maximum number of the data cartridges that can be stored, the regulating member being located on the side surface, said regulating member comprising a protruding contact part connected to a lever, and a biasing element that biases the protruding contact part to protrude from the side surface hole into the rear storage position, the lever and the biasing element rotatable, wherein the first data cartridge is storable in the rear storage position by entry into the open end of the housing, movement through the front storage position, and movement past the side surface hole into the rear storage position, wherein the lever is biased by the biasing element so that the protruding contact part rotates to extend through said side surface hole and extend into the storage area to thereby form a blockage, wherein, with the protruding contact part extended through said side surface hole into the storage area to form said blockage, the protruding contact part blocks the movement of the second data cartridge past the side surface hole and rearwards to thereby prevent complete insertion of the second data cartridge to regulate the storage of the maximum number of the data cartridges that can be stored within the enclosed storage area defined by the housing.