Tape cassette, in particular a magnetic tape cassette, and a reel support liner therefor

US4632334A · kind A · utility

Assignee

• BASF SE

Inventors

• Norbert Schaeffer · Bad Dürkheim, DE
• Dietmar Pfefferkorn · Hemsbach, DE
• Roland Sold · Mutterstadt, DE
• Uwe Brinkmann · Kehl, DE
• Ludwig Kreitner · Heppenheim, DE
• Roland Sigwalt · Illkirch-Graffenstaden, FR

Key dates

• Filing date: Mar 27, 1986
• Grant date: Dec 30, 1986
• Expiry date: Mar 27, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10M2219/046
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

In a tape cassette possessing symmetrically arranged support liners, a compressive force dependent on the tape roll diameter is exerted by the liner and utilized for centering the roll and the tape. Force/diameter relationships, and embodiments of folded liners for achieving individual forces are described. A novel dynamic liner arrangement can be used in any tape cassette possessing high winding speeds and sensitive tapes, with frequently alternating rewind/playback operation.