Abstract: A lock mechanism for restraining a head of a head/arm assembly is disclosed. The head/arm assembly has a rigid arm and flexible support means supporting the head and mounted to the rigid arm. The flexible support means normally biases the head to an operating position. The lock mechanism comprises a lock arm having a length, the lock arm arranged to move parallel with the length of the lock arm between a first lock arm position wherein a forward edge of the lock arm engages the flexible support means to restrain the flexible support means from biasing the head to its operating position and a second lock arm position wherein the lock arm is free of the flexible support means. Actuator means moves the lock arm parallel with the length of the lock arm between the first and second lock arm position.

Abstract: A receiver assembly is provided for releasably mounting a head/arm assembly to a movable arm of a disc drive. The head/arm assembly has a rigid arm having at least two mutually exclusive predetermined defined edges and a flex arm mounted to the rigid arm supporting the transducing head in a predetermined relation to the predetermined edges of the rigid arm. The receiver assembly includes a base member having a surface receiving the rigid arm of the head/arm assembly. At least two positioning pins are mounted to the base member adjacent the receiving surface, and an actuator provides a predetermined bias against the rigid arm so that the defined edges of the rigid arm bear against the positioning pins. A clamp assembly is mounted to the base member to releasably clamp the rigid arm of the head/arm assembly to the receiving surface of the base. The base member is fixedly mountable to the movable arm of the disc drive to position the positioning pins in a predetermined relation to the arm.