Disk drive system with inertial arm preventing shock

A disk drive system comprising:

• an actuator heaving a head arm mounted with a slider having a head element for recording data in a disk recording medium and reading the recorded data;
• means for unloading said head arm to a parking position and loading said heard arm from said parking position such that said slider comes close to a surface of a disk recording medium;
• an inertial arm rotatably supported for engaging said actuator when said heard arm is in or near said parking position, and for releasing engagement with said actuator when said head arm is in or near a position close to a disk recording medium, and having a wind receiver for receiving a force of air flow produced by rotation of a disk recording medium, the window receiver oriented for applying such force to the inertial arm in a direction away from engagement with the actuator for maintaining the inertial arm in a released state, and said wind receiver that receives said force of air flow has a leading edge that forms an obtuse angle with said inertial arm;
• and
• means for causing a force which counterclockwise rotates said actuator at a predetermined angular acceleration upon application of a counterclockwise rotational shock.

A disk drive system comprising:

• an actuator heaving a head arm mounted with a slider having a head element for recording data in a disk recording medium and reading the recorded data;
• means for unloading said head arm to a parking position and loading said heard arm from said parking position such that said slider comes close to a surface of a disk recording medium;
• an inertial arm rotatably supported for engaging said actuator when said heard arm is in or near said parking position, and for releasing engagement with said actuator when said head arm is in or near a position close to a disk recording medium, and having a wind receiver for receiving a force of air flow produced by rotation of a disk recording medium, the window receiver oriented for applying such force to the inertial arm in a direction away from engagement with the actuator for maintaining the inertial arm in a released state, and said wind receiver that receives said force of air flow has a leading edge that forms an obtuse angle with said inertial arm;
• and
• means for applying a clockwise force on said actuator and said inertial arm at a predetermined angular acceleration upon application of a clockwise rotational shock.