Suspension assembly and disk drive with the same

Patent metadata

Field	Value
Publication number	US-2016019918-A1
Application number	US-201414533773-A
Country	US
Kind code	A1
Filing date	Nov 5, 2014
Priority date	Jul 21, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

According to one embodiment, a suspension assembly includes a base plate having a securing plate portion protruding outwardly from a side edge of the base plate, a load beam secured on a first surface of the base plate and extending from the base plate, and a wiring member. The wiring member includes a distal side portion attached to the load beam and the first surface of the base plate, and a proximal side portion extending outwardly from the side edge of the base plate and extending in a direction opposite to the load beam along the support surface.

First claim

1 . A suspension assembly comprising:
a base plate comprising a first surface, a second surface opposite to the first surface, a side edge, and a securing plate portion protruding outwardly from the side edge, the securing plate portion being formed in a stepped shape to be bent to the second surface side along the side edge, and including a support surface displaced to the second surface side and extending substantially parallel to the first surface; a load beam comprising a proximal portion secured on the first surface of the base plate, and extending from the base plate; and a wiring member comprising a plurality of wiring lines electrically connectable to a head, a distal side portion attached to the load beam and the first surface of the base plate, and a proximal side portion extending outwardly from the side edge of the base plate and extending in a direction opposite to the load beam along the support surface, wherein the base plate comprises a rear edge positioned at a side opposite to the load beam, and the support surface of the securing plate portion extends in a direction opposite to the load beam over the rear edge.

2 . (canceled)

3 . The suspension assembly of claim 1 , wherein
the proximal side portion of the wiring member is tilted and extended from the first surface of the base plate to the support surface of the securing plate portion, and is positioned to be opposed to the support surface.

4 . The suspension assembly of claim 1 , wherein
the securing plate portion is formed by folding a part of the base plate in a bent shape.

5 . A suspension assembly comprising:
a base plate comprising a first surface, a second surface opposite to the first surface, a side edge, and a securing plate portion protruding outwardly from the side edge, the securing plate portion including a support surface extending substantially parallel to the second surface along the side edge; a load beam comprising a proximal portion secured on the second surface of the base plate, and extending from the base plate; and a wiring member comprising a plurality of wiring lines electrically connectable to a head, a distal side portion attached to the load beam and the second surface of the base plate, and a proximal side portion extending outwardly from the side edge of the base plate and extending in a direction opposite to the load beam along the support surface.

6 . The suspension assembly of claim 5 , wherein
the base plate comprises a rear edge positioned at a side opposite to the load beam, and the support surface of the securing plate portion extends to a direction opposite to the load beam over the rear edge.

7 . The suspension assembly of claim 5 , wherein
the support surface of the securing plate portion is positioned in a same plane as the second surface of the base plate.

8 . The suspension assembly of claim 5 , wherein
the load beam comprises a first surface positioned at the first surface side of the base plate, a second surface positioned at a side opposite to the first surface, and an opening formed at the proximal portion, and a distal side portion of the wiring member extends from the first surface of the load beam to the second surface of the base plate through the opening.

9 . A disk apparatus comprising:
a disk storage medium; the suspension assembly of claim 1 ; and a magnetic head supported on the suspension assembly and configured to process information on the storage medium.

10 . The disk apparatus of claim 9 , further comprising an actuator comprising an arm provided to be rotatable, and wherein
the arm comprises a distal end portion including a seat surface, and a slot extending from the distal end portion to a proximal portion of the arm along a side edge of the arm, the base plate of the suspension assembly comprises the second surface secured on the seat surface of the distal end portion of the arm, the support surface of the securing plate portion extends to the slot of the arm and is positioned at a height which falls within a width of the slot, and the proximal side portion of the wiring member extends into the slot of the arm along the support surface.

11 . A disk apparatus comprising:
a disk storage medium; the suspension assembly of claim 5 ; and a magnetic head supported on the suspension assembly and configured to process information on the storage medium.

12 . The disk apparatus of claim 11 , further comprising an actuator comprising an arm provided to be rotatable, and wherein
the arm comprises a distal end portion including a seat surface, and a slot extending from the distal end portion to a proximal portion of the arm, the base plate of the suspension assembly comprises the first surface secured on the seat surface of the distal end portion of the arm, the support surface of the securing plate portion extends to the slot of the arm and is positioned at a height which falls within a width of the slot, and the proximal side portion of the wiring member extends into the slot of the arm along the support surface.

13 . The disk apparatus of claim 9 , wherein
the proximal side portion of the wiring member is tilted and extended from the first surface of the base plate to the support surface of the securing plate portion, and is positioned to be opposed to the support surface.

14 . The disk apparatus of claim 9 , wherein
the securing plate portion is formed by folding a part of the base plate in a bent shape.

15 . The disk apparatus of claim 10 , wherein
the proximal side portion of the wiring member is tilted and extended from the first surface of the base plate to the support surface of the securing plate portion, and is positioned to be opposed to the support surface.

16 . The disk apparatus of claim 10 , wherein
the securing plate portion is formed by folding a part of the base plate in a bent shape.

Assignees

• Toshiba Kk

Inventors

• Juman Shigeru

Classifications

• G11B5/4873

  the arm comprising piezoelectric or other actuators for adjustment of the arm · CPC title

• G11B5/486 Primary

  with provision for mounting or arranging electrical conducting means or circuits on or along the arm assembly · CPC title

• G11B5/4853

  Constructional details of the electrical connection between head and arm · CPC title

• G11B5/4846

  Constructional details of the electrical connection between arm and support · CPC title

• G11B5/4833 Primary

  Structure of the arm assembly, e.g. load beams, flexures, parts of the arm adapted for controlling vertical force on the head (G11B5/484 takes precedence) · CPC title