Importance

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Abstract

A dynamic latching mechanism for a disc drive includes a latch rotatable about a pivot which captures an extension on the carriage. The latch is mounted in a frame directly attached to the disc drive housing. A spring loaded plunger normally is biased against the latch to hold it in place and thus restrain the carriage after the extension has been captured and power removed. A solenoid withdraws the plunger and allows release of the carriage. A brake plate is provided sliding on the plunger. A protrusion which extends from the latch frame and thus the disc drive housing cooperates with an edge of the brake plate. In the event of sudden shock to the housing, the shock force is transmitted to the protrusion which tilts the brake plate, freezing the plunger against the latch and preventing the latch from releasing from the extension on the carriage, so that the carriage is properly restrained even in the event of a significant shock.

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First Claim