摘要:
A recessed bezel and corresponding assembly are provided for internally mounting a data storage device in a computer system housing. The recessed bezel allows the removable data storage medium to be inserted into the data storage device to a loaded position, such that none of the removable data storage medium protrudes outwardly from the computer system housing.
摘要:
A tape cartridge is provided with reliable reel lock and motor/reel coupling mechanisms whose functions are both accomplished during a single motion of the cartridge relative to the drive motor. The motor/reel coupling includes a circular set of gear teeth on the bottom of the tape reel which meshes with a complementary set of gear teeth on a motor coupling rotated by the motor when the cartridge is loaded into the tape drive and the cartridge and motor are moved towards each other. An engagement force to maintain the coupling is provided by an engagement spring in the cartridge which biases the reel towards the motor. Reel locking is accomplished by providing a second circular set of gear teeth on a top side of the tape reel which meshes with a complementary set of gear teeth provided on a slidably mounted locking bracket inside the tape cartridge. A lock spring normally biases the locking bracket towards the top of the tape reel, thus locking the reel when the cartridge is not engaged with the motor. When the cartridge and the drive motor are moved towards each other, the motor coupling engages the bottom of the tape reel, and a projection on the motor coupling extends into the tape cartridge to slide the locking bracket out of engagement with the teeth on the top of the tape reel, thereby unlocking the reel. Thus, reel unlocking and motor/reel coupling are accomplished with a single motion by reliable mechanisms.
摘要:
A tape drive arrangement and method for driving a cartridge roller in a tape cartridge that advances tape in a tape cartridge. The tape drive has a drive motor and having a rotatable outer housing, and a cartridge roller contact surface around the outer housing of the drive motor. The drive motor is positioned within the tape drive so that the cartridge roller of a tape cartridge that has been inserted into the tape drive directly contacts the cartridge roller contact surface. The cartridge roller is directly driven by the drive motor upon rotation of the outer housing of the drive motor.
摘要:
An apparatus and processes for making and using the same, for holding tape media for use in compact computer tape drives. Tape media cartridges for use in compact computer tape drives have a single reel for holding the tape media, and include a leader block coupled to the tape media. When inserted into the tape drive, a leader block handling mechanism within the tape drive grips the leader block and threads the tape media on a take up reel in the tape drive. The apparatus permits the leader block handling mechanism to more easily grip the leader block, and promotes more compact designs for tape media cartridges and tape drives.
摘要:
A tape drive apparatus is provided with a base plate and tape path components on this base plate. The apparatus includes a bracket that is adjustably coupled to the base plate, the path components carrying a magnetic head for reading and writing to a tape transported by the path components. Pre-loaded jackscrews of the adjustment couplings are rotated to adjust and lock the azimuth and zenith settings for the magnetic head. A separate penetration screw independently controls the penetration of the magnetic tape.
摘要:
A tape drive head cleaner has a brush that is driven to sweep over a write/read head in the direction of longitudinal grooves on the write/read head. Debris that are within the grooves are swept out of the grooves by the movement of the brush in the direction of the grooves. The brush is carried by a tape drive head cleaner mechanism that includes a lead screw driven by a stepper motor that engages the half nut attached to a brush carriage that carries the brush. The brush carriage is guided by fixed guide shafts so that the brush is precisely swept over the write/read head.
摘要:
A magnetic/encoder assembly has a compact design and combines the features of motor, encoder and chuck locating feature within a single motor housing. The motor/encoder includes a DC brushless motor with an inner magnetic rotor. The motor windings and the commutation electronics are mounted towards the bottom side of a printed circuit board. The rotor of the motor is extended above the surface of the printed circuit board. The extended rotor provides a precision seat for the magnetic wheel with multiple poles. The top surface of the printed circuit board mounts the sensor for the encoder. The extension of the rotor provides the precision mounting surface of the cartridge driving chuck.
摘要:
A tape cartridge is provided with reliable reel lock and motor/reel coupling mechanisms whose functions are both accomplished during a single motion of the cartridge relative to the drive motor. The motor/reel coupling includes a circular set of gear teeth on the bottom of the tape reel which meshes with a complementary set of gear teeth on a motor coupling rotated by the motor when the cartridge is loaded into the tape drive and the cartridge and motor are moved towards each other. An engagement force to maintain the coupling is provided by an engagement spring in the cartridge which biases the reel towards the motor. Reel locking is accomplished by providing a second circular set of gear teeth on a top side of the tape reel which meshes with a complementary set of gear teeth provided on a slidably mounted locking bracket inside the tape cartridge. A lock spring normally biases the locking bracket towards the top of the tape reel, thus locking the reel when the cartridge is not engaged with the motor. When the cartridge and the drive motor are moved towards each other, the motor coupling engages the bottom of the tape reel, and a projection on the motor coupling extends into the tape cartridge to slide the locking bracket out of engagement with the teeth on the top of the tape reel, thereby unlocking the reel. Thus, reel unlocking and motor/reel coupling are accomplished with a single motion by reliable mechanisms.
摘要:
A voice coil driven positioner is provided for positioning the magnetic head of a tape drive relative to the tape of a removable tape cartridge. The head positioner includes a low-mass carriage that supports the head on one end and the voice coil on an opposed second end. A low friction guide mechanism guides the carriage along a precision movement path that carries the head across tracks of a supplied multi-track tape and simultaneously carries the voice coil through a flux field generated by a stator. A movable portion of a position detector is attached to the carriage and located within the hollow of the voice coil for reciprocating into a hollow passageway of the stator together with reciprocation of the voice coil into another hollow of the stator. A fixed portion of the position detector is attached to the stator and located compactly within the hollow passageway of the stator. A programmable lookup table converts measurement signals output by the position detector into pre-calibrated, head-position indicating signals. A platform is provided on the carriage for mounting an interferometer prism used during calibration.
摘要:
An apparatus and method for reducing adjacent track interference in a tape drive data storage system which employs a single read/write head controllably movable to any desired one of a plurality of parallel data tracks extending parallel with the length of the tape. The method consists of intentionally introducing azimuths of opposite direction for accesses to adjacent data tracks, with the magnitude of the introduced opposite azimuths being selected to exceed the azimuth range at which the head is capable of reliably reading data. In the apparatus of the invention the actuator used to move the head from track to track is mounted on a pivotable plate member, and the pivoting of the plate member is controlled by a stepper motor driven by control logic responsive to the access command being executed. Alternative mechanisms for connecting the stepper motor to the pivotable plate member are disclosed