G - Physics – 11 – B
Patent
G - Physics
11
B
352/21.3
G11B 17/02 (2006.01) G11B 5/54 (2006.01)
Patent
CA 1172754
ABSTRACT OF THE DISCLOSURE A disc drive is disclosed for positioning magnetic heads relative to a disc having radially spaced data tracks. The disc drive includes a motor, a drive shaft coupled to the motor and driving the carriage for radial positioning. A stationary sensor and stop assembly is mounted in the disc drive in a fixed position relative to the movable carriage. A moving crash stop and zero track interrupter is mounted on the drive shaft for rotation with the drive shaft. This includes fixed stop means for striking the stationary sensor and stop assembly in both directions of rotation; the crash stop and zero track interrupter activates the sensor and stops rotation in a first direction of rotation of the motor drive shaft corresponding to a first direction of movement of the carriage. The assembly strikes the sensor in a second direction of rotation to establish a limited movement in the second direction of rotation corresponding to the second direction of move- ment of the magnetic heads. As a result of this assembly, the limits of movement of the carriage in both directions of travel are defined by a single integrated assembly which rotates with the same drive shaft which is moving the carriage.
401172
Iftikar Syed H.
Reeck David L.
Seagate Technology Llc
Smart & Biggar
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