公开(公告)号：US08964335B2

公开(公告)日：2015-02-24

申请号：US14072315

申请日：2013-11-05

Applicant: NHK Spring Co., Ltd.

Inventor： Toshiki Ando ,  Hideki Fuchino ,  Tsutomu Fukuda ,  Emi Sugimoto

IPC: G11B21/10 ,  G11B5/48 ,  G11B5/55 ,  G11B5/596

CPC classification number: G11B5/4873 ,  G11B5/4826 ,  G11B5/5552 ,  Y10T156/10

Abstract: A head suspension 31 has a piezoelectric element 13 that deforms in response to a voltage applied thereto, a base plate 33 having an attaching part to which the piezoelectric element 13 is attached, and a load beam 35 having a flexure 39. A front end of the load beam 35 moves in a sway direction according to the deformation of the piezoelectric element 13. The head suspension 31 includes adhesives that attach the piezoelectric element 13 to the attaching part. The adhesives are applied to and hardened at the attaching part one by one. At least one of the adhesives that is first applied to and hardened at the attaching part is electrically insulative. The head suspension 31 properly maintains electric insulation between the piezoelectric element 13 and the attaching part, sufficiently demonstrates original functions, and secures a rigidity balance and proper vibration characteristic.

Abstract translation: 磁头悬架31具有响应于施加到其上的电压而变形的压电元件13，具有附接有压电元件13的附接部分的基板33和具有挠曲件39的负载梁35.前端 负载梁35根据压电元件13的变形而在摆动方向上移动。磁头悬架31包括将压电元件13附接到安装部的粘合剂。 将粘合剂逐一施加到附着部分并硬化。 首先在附着部分施加并固化的粘合剂中的至少一种是电绝缘的。 磁头悬架31适当地保持压电元件13和安装部之间的电绝缘，充分发挥原有的功能，并确保刚性平衡和适当的振动特性。