Patent ID: 7564655
Filing Date: 2009-07-21
Classification: G11B

Abstract:
1. An actuator comprising: first and second arm members stacked over each other; head gimbal assemblies respectively fixed to front ends of the pair of arm members; and a fastening mechanism fastening the pair of arm members, wherein each of the first and second arm members comprises a core part coupled to the fastening mechanism with the core part of the first arm member spaced vertically from the part of the second arm member, a blade part horizontally extending from the core part, and a head gimbal assembly coupled to the blade part, a distance between blade parts of the first and second arm members is greater than a distance between the core parts of the first and second arm members, and a distance between the pair of blade parts of the first and second arm members is greater than a width of a disk between the first and second arm members that is a data recording medium.