Abstract: A tape cassette is provided with curved/bent support liners, the longitudinal bends having different cross-sectional shapes and lengths and hence different effective spring constants. The hubs or reels and, if necessary, the tape rolls are guided and the tape sections to be wound/unwound are aligned.

Abstract: A magnetic tape cassette is provided with a raised housing part. The conventional two-part housing of such a cassette is formed by essentially planar housing parts connected to one or more third separate housing parts which can be suitably connected to and/or can connect the planar housing parts. The position of the tape guide elements can be improved for all cassettes of this raised housing part type.

Abstract: A cassette having a movable closure member for housing openings and a spring in a housing recess between housing and closure member is designed with a spring having an effective thickness with respect to the housing recess receiving the spring, such that the closure member is kept at a predetermined constant distance from the housing surface.

Abstract: A magnetic tape cassette is provided with a raised housing part. The conventional two-part housing of such a cassette is formed by essentially planar housing parts connected to one or more third separate housing parts which can be suitably connected to and/or can connect the planar housing parts. The position of the tape guide elements can be improved for all cassettes of this raised housing part type.

Abstract: In a cassette for tape recording media, having a housing and one or more pegs which are molded as an integral part on the inner surface of the housing and help to determine the running of the tape recording medium, an accumulation of material arranged non-centrosymmetrically with respect to the mid-point of the base, for example an annular segment-like raised area and/or recess or support ribs having unequal volumes, is or are provided around the base of the peg, in order to set the predetermined vertical alignment of the peg. The peg can be, in particular, the spindle of a mobile tape guide element. A process for the production of such a peg by means of a special mold insert is likewise a subject of the invention. The invention can advantageously be used in all types of tape cassettes, such as film, audio, video, data and typewriter cassettes.

Abstract: A container for tape cassettes is provided with one or more locking elements which comprise one or more ring segments which are roughly adapted to the drive orifice of the cassette. An advantageous embodiment is formed integrally with a web and, preferably, an ejector peg. Overlaps in the edge contour part of a joint and the height of the peg adapted to the internal dimension of the container provide greater stability to lateral compressive forces and forces acting during fall.

Abstract: A container for cassettes is provided with at least one reinforcing edge substantially close to and parallel to back, front and/or side walls, and, if necessary, with reinforcing ribs between reinforcing edge and the adjacent wall. Ejection points for production of the container by injection molding are located along the reinforcing edge(s), for example at the connection points with the reinforcing ribs. The container can be used for any article having a substantially right parallelepiped shape.

Abstract: A pressure spring for tape cassettes which consists of a spring steel strip which is, in particular, narrow and is of roughly uniform width comprises a flat central part and curved spring arms adjacent to said part and having a continuous curve. The flat central part has, as fastening parts, holes with indented fastening collars which, together with rivet pegs and recesses in a housing wall, form a roughly projection-free spring fastening, the riveted peg ending roughly at the spring surface. The pressure spring exhibits a straight line with a defined slope in the operating region of its spring characteristic. The pressure spring can be used for tape cassettes of all types, in particular for video cassettes.

Abstract: A tape cassette has a two-reel brake system having identical brake levers and an actuating element possessing actuating arms for the brake levers, the actuating arms being arranged at least close to the ends of the swivel axle. The brake system is suitable for all two-reel tape cassettes, in particular video cassettes.

Abstract: A packaging container for a plurality of circular recording media is formed from substantially identical container parts which, after being combined, have a continuous longitudinal tooth system in the circumferential direction and at least one partial transverse tooth system in the radial direction. Toothed edge parts of the container parts engage one another. Stacking means are provided. Recording media to be packaged are any type of recording media in circular form, such as wound films, magnetic tapes or recording disks.

Abstract: A locking/unlocking means for cassettes, in particular those having swivel cover flaps, consists partially or completely of elastically deformable material and is pivotably mounted at two or more points. In the rest position of the locking/unlocking means, advantageously a swivel plate, an essentially tension-free arrangement is obtained by means of a supporting extension above the bearing axis, by actuation from outside, the said arrangement being converted in the operating state, without further spring elements, into a state of tension and into a position in which the supporting extension rests against the inside of an outer cassette wall and a reaction force corresponding to the actuating force is generated without any additional spring. Such a locking/unlocking means is suitable for cassettes of all types.

Abstract: A cassette incorporating a locking element, in particular for a hinged flap of the cassette, has mounting elements which are arranged so as not to turn in at least one retaining slit and a resiliently flexible integrated part which products a bending and torsional stress when the locking element is actuated.

Abstract: A box-shaped container for articles, consisting of a bottom part and a lid part, each having side walls, possessess on the side walls joint and rotation-restricting means which consist of one or more joint projections having an oblique surface and a hole having one or more bottom relief surfaces falling away on two sides. In an embodiment having a joint projection in the shape of a frying pan and one or more trapezoidal grooves arranged in a hole in such a way that their position is rotated, automatic closing and opening of the container can be achieved. The container is primarily intended for storing/archiving essentially right parallelepiped recording media, for example audio, video or data cassettes, but other articles too, for example jewelry etc., can advantageously be stored in such containers and protected from damage and dirt.

Abstract: A clamp for flexible strip material, e.g. for a tape reel, is designed to be completely separable from a hub and consists of parts (11, 12) which can be connected to one another and to the tape of strip element outside the hub and can be inserted into the hub.The clamp is suitable in principle for any type of reel for tape-like or strip-like material, in particular for magnetic recording media.

Abstract: A recording medium possessing an envelope has at least one identification part which is mounted so that its position can be altered but it cannot be accidentally lost, and which is symmetrical about at least one axis, in particular a middle axis, and is associated with at least one wall of the envelope. To permit error-free assembly/handling, the identification part advantageously has a shape which permits at least two equivalent mounted positions on the envelope.

Abstract: A hub/tape clamp arrangement for tape-like or strip-like articles consists of a recess in the peripheral edge of the hub, having one or more middle projections, and a tape clamp having the shape of an inverted W. In practice, wedge-shaped locking means between the projection and/or walls of the recess and the tape clamp may serve to retain the clamp and fix the tape. Steps at the ends of the recess, and extensions or steps in the hub recess which have been matched up in shape, increase the possibilities for monitoring/measuring dimensions. If the tape is fastened asymmetrically on one side, the tape clamp rises out of the recess on one side by a distance precisely the same as the tape thickness, so that the tape emerging from the recess is wound at the same level, i.e. the empty hub has a roughly screw-shaped peripheral contour. The hub can be designed for use with or without one or more flanges and is particularly useful for thin tapes, e.g. magnetic tapes.

Abstract: A guide means for tapes to be transported, in particular in tape cassettes or tape apparatus, comprises a support element and a flexible guide strip, in particular one made of metal foil, fixed on this, and at least one holding element for the end sections of the flexible guide strip. The guide strip possesses a predetermined thickness and may be drop-shaped or pear-shaped in the operating position. The tape guide means may also comprise a support element whose surface is at least partially cylindrical and a flexible guide strip which is fastened thereon. As a separable unit which can be preassembled, the tape guide means can therefore also be employed for automatic manufacture. The tape guide means can be used for tape guides which are either stationary or movable within limits, in the field of tape-like recording media, such as films, magnetic tapes, punched tapes, etc.

Abstract: A transparent window member for a tape cassette, which together with a reel pressure spring, forms a subassembly of the cassette. The reel pressure spring has a U-shaped central portion, the bight of the U being parallel to the plane of the spring arms, and the reel pressure spring having a longitudinal edge with two transverse slits spaced the same as the legs of the U of the central portion of the pressure spring. The central portion may thus be transversely inserted in the longitudinal edge of the window member and it thus forms a locating element for the pressure spring.