Tape cassette case having ridges bearing a sliding reel lock member

A tape cassette has a plurality of spaced apart, elongated bearing surface portions elevated relative to an internal surface of a cassette case and on which a reel lock member is adapted to slide. Accordingly, the sliding movement of the reel lock member is prevented from being hindered by a burr ge...

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Bibliographic Details
Main Author NAKAGAWA; TOMIHIRO
Format Patent
LanguageEnglish
Published 20.09.1994
Edition5
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:A tape cassette has a plurality of spaced apart, elongated bearing surface portions elevated relative to an internal surface of a cassette case and on which a reel lock member is adapted to slide. Accordingly, the sliding movement of the reel lock member is prevented from being hindered by a burr generated at the periphery of a hole formed through the internal surface or by a burr-like projection generated at the periphery of an indentation formed by contact of an ejector pin with the internal surface upon molding of the cassette case. As a result, the locking and unlocking operations of the reel lock member with respect to a tape reel can be reliably effected.
Bibliography:Application Number: US19910680828