| US 7,599,150 B2 | ||
| Head stack assembly, its manufacturing method, and magnetic disc drive having the same | ||
| Kenichiro Aoki, Kawasaki (Japan); Toshiyuki Nakada, Kawasaki (Japan); Keiji Aruga, Kawasaki (Japan); Yoshiaki Nagasawa, Kawasaki (Japan); Nobuyuki Hirono, Kawasaki (Japan); Yasuhiro Hamada, Kawasaki (Japan); and Makoto Sakairi, Kawasaki (Japan) | ||
| Assigned to Fujitsu Limited, Kawasaki (Japan) | ||
| Filed on Aug. 23, 2005, as Appl. No. 11/208,570. | ||
| Claims priority of application No. 2005-100198 (JP), filed on Mar. 30, 2005; application No. 2005-100199 (JP), filed on Mar. 30, 2005; application No. 2005-100200 (JP), filed on Mar. 30, 2005; and application No. 2005-100201 (JP), filed on Mar. 30, 2005. | ||
| Prior Publication US 2006/0221506 A1, Oct. 05, 2006 | ||
| Int. Cl. G11B 5/48 (2006.01) | ||
| U.S. Cl. 360—265.7 | 26 Claims |
| 7. A head stack assembly comprising:
a pair of suspensions each of which supports a head;
an arm that drives the head and has a perforation hole; and
a pair of base plates, swaged with both sides of the perforation bole of said arm, which attach said pair of suspensions to
both sides of said arm,
wherein a larger distance between the closest points of said pair of base plates to a neutral plane that halves a thickness
of said arm, and the closest position to the neutral plane among contact positions between said base plates and said arm is
130% of a smaller distance or smaller.
|