摘要:
A tape cassette has a case with upper and lower halves and an open space at the front thereof. A magnetic tape housed in the case is wound around a pair of reels. A brake is slidably mounted on the inner surface of the lower half of the case to prevent the reels from being rotated. Part of a spring is attached to the brake. The spring has free ends and urges the brake in a direction. A device for positioning the spring includes a partition wall on the inner surface of the lower half of the case which partitions the open case from the inside of the case. An independent abutment member on the partition wall abuts the free ends of the spring.
摘要:
A disc cartridge capable of not only safely housing a disc in a casing but preventing the disc housed in the casing from being polluted with a foreign matter. The disc cartridge includes a casing formed with a slot and a pair of actuators each having an elongated cover plate member slidably fitted in the slot of the casing in a manner to outwardly projected through the slot. The actuator is provided with an elongated cover plate which is adapted to thoroughly and sealedly cover the slot of the casing.
摘要:
A disc cartridge capable of effectively preventing a recording surface section of a disc from being directly contacted by an inner surface of a casing. The disc cartridge includes a casing having a space defined therein. An inner surface of the casing has a rear end surface section which is positioned opposite to an insertion side of the disc cartridge and against which a peripheral portion of the disc is abutted. The rear end surface section is formed into a substantially sideways V-shape so that the disc may be positioned at substantially a center of the casing in a width direction of the casing along the rear end surface section.
摘要:
A tape cassette has a housing and a pressure pad apparatus mounted within the housing for bringing a magnetic tape into direct contact with a magnetic head. The pressure pad apparatus includes a pad, a spring joined to the pad for imparting a pushing force to the magnetic head, and a holding member mounted within the housing for holding the spring at two points spaced from each other. The effective length of the spring is greater than the distance between the two holding points of the holding member.
摘要:
A resiliently-mounted protective cover mounted on a magnetic tape cassette is controllably moved between exposed and protected positions along substantially the same path of movement during each use of the cassette. Blocking walls are provided in the interior of the cassette for preventing contaminants from reaching and contacting the magnetic tape therein.
摘要:
A reel for a magnetic tape comprises at least one boss for forcible insertion which is formed on a reel hub on the contacting to a flange; a fitting hole which is formed in the flange at a position corresponding to the boss and which has a smallest diameter portion smaller than the greatest diameter portion of the boss and a detent portion. The boss is provided with at least one dividing slot and an engaging jaw to engage with the detent portion of the fitting hole at a position where the boss is fully inserted.
摘要:
A disc cartridge capable of ensuring its stable and positive operation without damaging a disc while satisfactorily producing a cleaning effect and maintaining adequate contact between the head of a cartridge operating unit and the disc. Each of a pair elastic members respectively mounted on the upper and lower inner surfaces of a casing forcibly presses a sheet-like liner situated between the elastic member and a disc against the disc through a projection portion having a predetermined length formed as part of the elastic member, resulting in the liner contacting the disc with a force at substantially a constant level for a long period of time.
摘要:
A disc cartridge capable of preventing a recording surface section of a disc from being contacted with an inner surface of a casing so that the disc may be free from any damage. The disc cartridge includes steps or sheet-like members provided on the inner surface of the casing in a manner to be inwardly projected from the inner surface. The steps or sheet-like members are positioned so as to be engaged with a non-recording surface section of the disc to support the disc thereon, so that a clearance may be defined between the recording surface section of the disc and the inner surface of the casing.
摘要:
A disc cartridge capable of holding a disc in a casing in a state of floating in a space in the casting to keep it in noncontact with the casing when the disc cartridge is not used. The disc cartridge includes an actuator arranged in a casing receiving a disc therein to releasable lock a shutter for a window and a disc receiver arranged in the casing and operatively connected to the actuator to selectively receive therein a part of a peripheral portion of the disc. The actuator is arranged to be slidable in a longitudinal direction of the disc cartridge to cause the disc receiver to be approachably moved with respect to the disc, so that the disc receiver may be engaged with the disc to rearwardly force the disc while keeping the disc in noncontact with the casing when the shutter is actuated to close the window and disengaged from the disc when the shutter is actuated to open the window.
摘要:
A magnetic tape cartridge comprising upper and lower half casings and a lid placed in the front of said upper and lower half casings so as to be opened and closed, in which pivot pins of the lid are fitted into supporting openings formed in the upper half casing or the lower half casing and the dimension at the entrance of each of the supporting openings is smaller than the diameter of each of the pivot pins so that the pivot pins are forced to be snap-fitted into the supporting openings.