Tape cassette with tape cleaners.

摘要

A tape cassette for accommodating a reeled length of magnetic recording tape comprises a generally rectangular flattened box-like configuration. The cassette has top and bottom panels, front and rear wall and a pair of side walls. The front wall has a head access window and a pair of pinch roller access windows all defined therein. While a portion of the length of magnetic tape extends in the vicinity of and parallel to the front wall, tape cleaners are secured to front wall portions defined between the head access window and the pinch roller access windows so as to slidingly contact that portion of the length of magnetic recording tape as the latter is transported from one reel to the other reel. Each tape cleaner may be a fiber-intertwined cleaning member made of non-woven fabric or a fiber-tufted cleaning member made of crimped or curled fibers closely planted on a backing. With the fiber-intertwined cleaning members, that portion of the length of magnetic recording tape that is held in sliding contact with an intermediate portion of each fiber-intertwined cleaning member is backwardly biased a predetermined bias distance within the range of 0.5 to 1 mm, but with the fiber-tufted cleaning members, that portion of the length of magnetic recording tape that is held in sliding contact with an intermediate portion of each fiber-intertwined cleaning member is backwardly biased a predetermined bias distance within the range of 0.1 to 1 mm.