Magnetic tape cassette with motion limiting fingers

摘要

A magnetic tape cassette that includes a substantially rectangular housing and a pair of tape reels carried for rotation within the housing with a length of magnetic tape extending between the reels for recording and/or playback of information. An aperture in a sidewall of the housing affords external access to the tape by recording/playback apparatus, and posts within the housing guide the magnetic tape between the reels adjacent to the sidewall aperture. The guideposts are mounted with the housing so as to be disposed entirely internally of the tape between the reels such that the information surface of the tape is free of contact with the guideposts or any other portion of the cassette as the tape is wound between the reels past the sidewall aperture. A circular array of circumferentially spaced fingers are integral with the housing surrounding each of the reels radially spaced from the reels so as to limit lateral motion of the reels while maintaining alignment of the reels with apertures in the bottom wall of the housing for engagement with the tape drive mechanisms of recording/playback apparatus.