Suspension assembly with limiter and disk drive
View Patent ↗According to one embodiment, a suspension assembly includes a support plate including a distal end portion and a proximal end portion, a wiring member including a gimbal portion and provided on the support plate, and a magnetic head on the gimbal portion. The gimbal portion includes a first welded portion located near the proximal end portion and welded to the support plate, a second welded portion located near the distal end portion and welded to the support plate, a tongue portion between the first welded portion and the second welded portion, supported displaceably to the support plate, and on which the magnetic head is mounted, and a limiter extending from the tongue portion toward the second welded portion.
1. A disk drive comprising:
a disk-shaped recording medium including a recording layer;
a suspension assembly comprising:
a support plate including a distal end portion and a proximal end portion; a wiring member comprising a gimbal portion and provided on the support plate; and a magnetic head mounted on the gimbal portion, wherein the gimbal portion comprises a first welded portion located near the proximal end portion of the support plate and welded to the support plate, a second welded portion located near the distal end portion of the support plate and welded to the support plate, a tongue portion provided between the first welded portion and the second welded portion and supported displaceably to the support plate, and on which the magnetic head is mounted, and a limiter extending from the tongue portion toward the second welded portion;
a tab provided at the distal end portion of the support plate; and
a ramp comprising a guide surface on which the tab is placeable and a support surface against which the limiter is capable of contact.
2. The disk drive of claim 1 , wherein the gimbal portion comprises a proximal end portion including the first welded portion and fixed to the support plate, a pair of link portions which are resiliently deformable, extend from the proximal end portion of the tongue portion, and displaceably support the tongue portion, a connecting frame which extends from one of the link portions to the other of the link portions through a distal end portion side of the tongue portion, and a pad portion between the connecting frame and the tongue portion, connected to the connecting frame, the pad portion including the second welded portion and being fixed to the support plate.
3. The disk drive of claim 1 , wherein the tongue portion comprises two limiters extending from the tongue portion toward the second welded portion, and the second welded portion is located between the two limiters.
4. The disk drive of claim 1 , further comprising an extendable piezoelectric element mounted on the gimbal portion.
5. The disk drive of claim 2 , wherein the tongue portion comprises two limiters extending from the tongue portion toward the second welded portion, and the second welded portion is located between the two limiters.