Tape cassette, in particular magnetic tape cassette, and support liners for this

In a magnetic tape cassette having a housing containing a magnetic tape having two ends comprising a top lid wall a bottom lid wall, two side walls, a front wall and a back wall,

• said housing having therein two flangeless hubs, each of which has one end of the magnetic tape attached thereto, and by which the magnetic tape is transported from one hub to the other, in a direction generally along the longitudinal axis of the cassette, by the winding of the magnetic tape on one of the hubs to form a tape roll, with the simultaneous unwinding of the magnetic tape from the magnetic tape roll on the other hub,
• the improvement wherein
• the housing contains two support liners therein which are coordinated with each other and are opposite one another in relation to the horizontal central plane of the cassette, one of said liners being in contact with the inner surface of, and supported by the top lid wall, and the other being in contact with the inner surface of, and supported by, the bottom lid wall,
• pressure means for providing stabilizing spring force on said hubs and/or said magnetic tape rolls,
• said pressure means being provided by said support liners having longitudinal bends provided on either side of the central longitudinal axis of the housing,
• which longitudinal bends contact said hubs and/or said at least one tape roll thereby applying the stabilizing spring force,
• said hubs and said magnetic tape being between the two support liners such that, depending on the diameter of the tape rolls during operation of the cassette, the support liners each exert a spring force opposite to the other onto both of said hubs and/or onto at least one of said magnetic tape rolls, said bends being of a length at least sufficient to reach from the center line of one hub to the center line of the other,
• said longitudinal bends having the structure:
• a) wherein a longitudinal bend has a continuous cross-sectional shape over its entire length with at least one adjacent bend having a different cross sectional shape, such that spring forces of different magnitudes are exerted along the horizontal plane of the housing, or
• b) wherein the longitudinal bends have different cross-sectional shapes over their entire length such that spring forces of different magnitudes are asserted longitudinal axes of the housing,
• whereby said spring forces of different magnitudes are applied onto said hubs and/or at least one of said tape rolls within the housing of the cassette.