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US 3,942,744 AGranted
Magnetic tape cartridge
AssigneeBASF SE
InventorsHorst Fitterer, Uwe Woweries, Gustav Loewenberg, Dieter Gaiser
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AssigneeBASF SE
InventorsHorst Fitterer, Uwe Woweries, Gustav Loewenberg, Dieter Gaiser
Estimating the term…
The invention relates to magnetic tape cartridges in general in which between the tape packs and the upper and lower cartridge walls liners are provided which have regions that resiliently guide the tape packs and/or the magnetic tape. By means of specifically shaped regions of the liners, guide channels for the outer turns of the tape pack and/or for the winding or unwinding magnetic tape are formed according to the invention. By virtue of particular spatial arrangements of these guide channels, slipping and folding of the turns of tape already wound is avoided and the magnetic tape is maintained in the correct position as it leaves and joins the packs, irrespective of the type of bearing means used for the tape winding reels and irrespective of the shape of the tape packs, so that disturbances in operation are avoided and the tape is correctly positioned relative to the scanning means. Cartridges according to the invention may be employed advantageously in the recording and reproduction of audio and other signals.
A magnetic tape cartridge, especially a compact cassette, with at least one tape winding hub onto which the magnetic tape is wound and/or from which it is unwound, at least two liners being provided, one on each side of the reel of wound tape, between the latter and the lower and upper cartridge walls, respectively, said liners comprising portions, at least one for each liner, which resiliently engage the tape pack, wherein said portions are formed to provide between them at least one guide channel for the outer turns of the tape pack and/or for the tape to be wound or unwound, said channel, at its bottom being delimited by the tape pack itself and having legs defined by said liner portions and angling towards each other in a radially outward direction, and said channel extending substantially between the region where the winding or unwinding tape joins or leaves the pack and the region of intersection of the pack periphery with the transverse center line of the pack, whereby the tape is kept from slipping off the pack.
Dependencies are inferred from the claim text.