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US 4,788,614 AGranted
Locking mechanism in a magnetic tape cassette
AssigneeFuji Photo Film Co., Ltd.
InventorsShozo Onmori, Shingo Katagiri, Kengo Oishi
Life of this patent
Estimating the term…
Abstract
A magnetic tape cassette of two half cases. A locking member is slidable backwards to lock the hubs holding the tape. The locking member is biased by a spring fixed to a protrusion at the front of one of the half cases. Backward facing legs of the springs slidably engage a lateral recess in the locking member to bias it backwards against the hubs.
Claims6
A tape cassette, comprising:
- a first half case, having a protrusion at a central portion;
- a second half case joined to said first half case and forming an internal space therein, wherein said protrusion projects into the internal space;
- two hubs for winding tape rotatably mounted in said internal space;
- a locking member slidable in a first direction away from said protrusion and toward said hubs within said internal space and including means for selectively locking said hubs, said locking member having a recess on a side facing in a second direction toward said protrusion and away from said hubs, said recess extending laterally in parallel to a joining line of said first and second half cases;
- and
- a spring coupled to said protrusion and having legs extending in said first direction and slidably held in said recess for biasing said locking member in said first direction.
3 more elements
Dependencies are inferred from the claim text.