Magnetic tape cassette
AssigneeTDK Electronics Co., Ltd.
InventorsMasatoshi Okamura, Kimio Tanaka
Life of this patent
Estimating the term…
Abstract
A magnetic tape cassette comprises a tape running plane for a magnetic tape provided in the front of the casing assembly consisting of an upper half casing and a lower half casing, said magnetic tape being held in wound form and being capable of running inside the casing assembly and a front cover mounted to the casing assembly so as to open and close at the front of the assembly, said front cover being actuated by spring action in the direction closing the front part of the casing assembly by positioning one end of a coil spring fitted to the pivot pin in a rectangular groove formed in an inner surface of the upper half casing, wherein a rib having a slanted surface which is lowered toward said groove is provided at the side of said groove.
Claims3
In a magnetic tape cassette comprising a tape running plane for a magnetic tape provided in the front of the casing assembly consisting of an upper half casing and a lower half casing, said magnetic tape being held in wound form and being capable of running inside the casing assembly and a front cover mounted to the casing assembly so as to open and close at the front of the assembly, and front cover being actuated by spring action in the direction closing the front part of the casing assembly by positioning one end of a coil spring fitted to the pivot pin in a rectangular groove formed in an inner surface of the upper half casing, an improvement characterized in that a rib having a slanted surface which is lowered toward said groove is provided at the side of said groove.
Dependencies are inferred from the claim text.