公开(公告)号：JPH11110925A

公开(公告)日：1999-04-23

申请号：JP26248397

申请日：1997-09-26

Applicant: IBM

Inventor： DAVID W ALBRECHT ,  AOYANAGI AKIHIKO ,  TSUJINO HITOSHI ,  KATO MASAHIKO ,  KOBAYASHI MASAKI ,  SURYA S PATANAIK ,  DAVID A ELPENDING

IPC: G11B21/02 ,  G11B5/60

Abstract: PROBLEM TO BE SOLVED: To simplify wiring processings and to enhance workability by making extension plates bendable in a direction vertical to the flat surfaces of arms and arranging plural arms bedable around two axes of the flate planes of the arms, plural first connection pads to be provided on respective extension plates and plural second connection pads to be provided on the flat surface of a circuit board. SOLUTION: A voice coil motor 12 is attached to an arm assembly 10 and head/slider assemblies 13 are moved in the radial direction by the voice coil motor 12 by connecting respective rear ends of arms 11 to an axis 14 while pivotally attaching them to the frame of a disk driving device. Moving amounts of second connection pads being on a circuit board 23 with respect to extension plates 19 are small and positions of the pads are correctly formed and at the time the extension plates 19 are rotatingly moved around three axes orthogonal with each other, the pads are not fluctuated and the extension plates 19 can be bent in the direction vertical to flat surfaces of the arms 11 and the arms 11 can be moved around two axes of the flat surfaces.