| 摘要 |
A magnetic tape cassette having a housing (1) comprising two substantially parallel major walls (2, 3), two substantially parallel side walls (4, 5), a rear wall (6) and a front wall (7) along which part of a magnetic tape (9) extends, is provided with a front cover (12) which comprises a major portion (13) which, in the closed position of said cover, covers the part of the magnetic tape (9) which extends along the front wall (7), and cover flanges (14, 15) which extend along the front end portions of the side walls (4, 5). The front cover (12) is pivotable from the closed position to two different open positions about an axis (16a) which extends perpendicularly to the side walls (4, 5). In the side facing the adjacent side wall (4, 5) each flange (14, 15) has a recess (21, 22) which extends arcuately about the pivotal axis (16a). The recesses (21, 22) in the flanges (14, 15) are so arranged that when projected onto a plane.], perpendicular to the pivotal axis (16a) of the front cover (12) they are substantially mirror symmetrical relative to each other about a plane containing said pivotal axis and extending parallel to the major walls of the housing, and first end portions of the recesses (21, 22) overlap each other. There are also provided two springloaded latching projections (19, 20) which are situated one near each of the side walls (4, 5) and which are movable into and out of the recesses (21, 22) in the cover flanges in directions perpendicular to these walls. In the closed position of the front cover (12) the latching projections (19, 20) are each situated in the first end portion of the recess (21, 22) in the adjacent cover flange and together retain the cover (12) in a latched position. |
