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US 4,789,113 AGranted
Hub locking mechanism in a magnetic tape cassette
AssigneeFuji Photo Film Co., Ltd.
InventorsShingo Katagiri, Kengo Oishi
Life of this patent
Estimating the term…
Abstract
A magnetic tape cassette in which a locking member is slidably biased away from a front opening of the cassette to lock the tape hubs. The locking member has a pair of side arms interlocked with a front panel of the cassette so that, when the panel is rotated open, the locking member disengages from the hubs.
Claims4
A magnetic tape cassette, comprising:
- a pair of hubs on which a magnetic tape is wound;
- a slidable locking member which is urged rearward of said cassette by a spring to lock said hubs and which has a pair of arms extending forward of said cassette;
- a rotatable guard panel for opening and closing a front opening of said cassette and having two lateral side walls;
- engagement means provided at free-end tips of both said arms;
- engagement hooks provided inside both of said side walls of said guard panel so that said engagement hooks are engaged with said engagement means by the opening motion of said guard panel to slide said locking member forward of said cassette;
- and wherein said guard panel includes rotation shafts projecting respectively from said lateral side walls of said panel, and wherein said engagement hooks extend from the tips of said rotation shafts along respective lateral side walls of said panel.
3 more elements
Dependencies are inferred from the claim text.