公开(公告)号：US20250104733A1

公开(公告)日：2025-03-27

申请号：US18896917

申请日：2024-09-26

Applicant: NHK SPRING CO., LTD.

Inventor： Masao HANYA ,  Toshiki ANDO

IPC: G11B5/48

Abstract: According to one embodiment, a suspension includes a load beam having a dimple portion and a flexure having a slider mounting portion. The dimple portion has a convex surface in contact with the slider mounting portion. The slider mounting portion is swingably supported by a gimbal component member. The radius of curvature of the convex surface is less than 0.15 mm. The flexure pitching resistance acting on the contact portion when the slider mounting portion swings in the pitching direction is 0.005 N or less. The phase delay of the slider mounting portion in the pitching direction relative to an undulation of a rotating disk is 200 or less.

公开(公告)号：US20230290373A1

公开(公告)日：2023-09-14

申请号：US18180781

申请日：2023-03-08

Applicant: NHK SPRING CO., LTD.

Inventor： Kenichi TAKIKAWA ,  Toshiki ANDO

IPC: G11B5/48

CPC classification number: G11B5/4833 ,  G11B5/4826

Abstract: A sag bend portion is formed in a longitudinal part of the load beam and bent in a thickness direction. The load beam includes a first portion and a second portion bordering the sag bend portion. Roots of outrigger portions are secured to the load beam by weld portions. A slit portion is formed around each of the weld portions. The slit portion includes an arc-shaped slit and a pair of extension slits. An outrigger support portion is formed inside the slit portion. The outrigger support portion extends in a direction different from that of the second portion of the load beam with respect to a cross section along the longitudinal direction of the load beam in the thickness direction.

公开(公告)号：US20140022674A1

公开(公告)日：2014-01-23

申请号：US13929634

申请日：2013-06-27

Applicant: NHK SPRING CO., LTD.

Inventor： Kenichi TAKIKAWA ,  Masao HANYA ,  Toshiki ANDO

IPC: G11B5/48

CPC classification number: G11B5/4813 ,  G11B5/483

Abstract: A slider and microactuator elements are disposed on a gimbal portion of a flexure. A first end portion of each of the elements is secured to a first supporting portion. A second end portion is secured to a second supporting portion. A ground-side conductor is provided on the second supporting portion. A limiter member consists mainly of a resin shared with an insulating layer of a conductive circuit portion. The limiter member comprises a grounding junction, a first bridge portion, and a second bridge portion. The grounding junction is secured to the second supporting portion. The first bridge portion extends in a first direction from the grounding junction. The second bridge portion extends in a second direction from the grounding junction.

Abstract translation: 滑块和微型致动器元件设置在挠曲件的万向节上。 每个元件的第一端部固定到第一支撑部分。 第二端部固定到第二支撑部分。 接地侧导体设置在第二支撑部分上。 限制器部件主要由与导电电路部分的绝缘层共享的树脂组成。 限制器部件包括接地连接点，第一桥接部分和第二桥接部分。 接地接头固定到第二支撑部分。 第一桥接部分从接地连接处沿第一方向延伸。 第二桥接部分在接地接头的第二方向上延伸。

公开(公告)号：US20140022671A1

公开(公告)日：2014-01-23

申请号：US13929601

申请日：2013-06-27

Applicant: NHK SPRING CO., LTD.

Inventor： Kenichi TAKIKAWA ,  Toshiki ANDO

IPC: G11B5/48

CPC classification number: G11B5/4873 ,  G11B5/4826 ,  G11B5/483

Abstract: A gimbal portion of a flexure is provided with first supporting portions to which first end portions of microactuator elements are secured and second supporting portions to which second end portions are secured. A first tongue portion is formed between the pair of first supporting portions. A leading-side portion of a slider is movably disposed on the first tongue portion. A second tongue portion is formed between the pair of second supporting portions. A trailing-side portion of the slider is secured to the second tongue portion. A narrow hinge portion is formed between the first and second tongue portions. The tongue portions are pivotably connected by the hinge portion. The distal end of a dimple contacts the hinge portion at a point of contact.

Abstract translation: 挠性件的万向节部分设置有第一支撑部分，微致动器元件的第一端部被固定到第一支撑部分，第二支撑部分被固定到第二支撑部分。 第一舌部形成在一对第一支撑部之间。 滑块的前侧部分可移动地设置在第一舌部上。 第二舌部形成在一对第二支撑部之间。 滑块的后侧部分固定到第二舌部。 在第一和第二舌部之间形成狭窄的铰链部分。 舌部通过铰链部可枢转地连接。 凹陷的远端在接触点处接触铰链部分。

公开(公告)号：US20140022670A1

公开(公告)日：2014-01-23

申请号：US13929619

申请日：2013-06-27

Applicant: NHK SPRING CO., LTD.

Inventor： Kenichi TAKIKAWA ,  Masao HANYA ,  Toshiki ANDO

IPC: G11B5/48

CPC classification number: G11B5/486 ,  G11B5/4826 ,  G11B5/483 ,  G11B5/4853 ,  G11B5/4873

Abstract: A slider and a pair of microactuator elements are disposed on a gimbal portion of a flexure. The gimbal portion comprises a first tongue portion, a second tongue portion, and a hinge portion. A trailing-side portion of the slider is secured to the second tongue portion. A leading-side portion of the slider is movable relative to the first tongue portion. A conductive circuit portion comprises a conductor connected to an element of the slider and a conductor connected to electrodes of microactuator elements. The conductive circuit portion comprises a first wiring pattern portion disposed inside microactuator elements and a second wiring pattern portion extending rearwardly relative to the gimbal portion.

Abstract translation: 滑块和一对微致动器元件设置在挠曲件的万向节上。 万向节部分包括第一舌部，第二舌部和铰链部。 滑块的后侧部分固定到第二舌部。 滑块的引导侧部分可相对于第一舌部移动。 导电电路部分包括连接到滑块的元件的导体和连接到微致动器元件的电极的导体。 导电电路部分包括设置在微致动器元件内的第一布线图案部分和相对于万向节部分向后延伸的第二布线图案部分。

公开(公告)号：US20230117866A1

公开(公告)日：2023-04-20

申请号：US17965852

申请日：2022-10-14

Applicant: NHK SPRING CO., LTD.

Inventor： Tatsuhiko NISHIDA ,  Toshiki ANDO

IPC: G11B5/48 ,  G11B33/02

Abstract: A disk drive suspension according to an embodiment comprises a load beam comprising a dimple, and a flexure overlaid on the load beam. The load beam and the flexure are fixed by a first fixing portion and a second fixing portion closer to a distal end of the load beam than the first fixing portion. The flexure comprises a tongue opposed to the dimple, and an outrigger connected to the tongue. The outrigger is bent in a thickness direction of the load beam at a bent portion located between the dimple and the first fixing portion in a length direction of the load beam.

公开(公告)号：US20140085755A1

公开(公告)日：2014-03-27

申请号：US14036548

申请日：2013-09-25

Applicant: NHK SPRING CO., LTD.

Inventor： Masao HANYA ,  Kenichi TAKIKAWA ,  Toshiki ANDO

IPC: G11B5/48

CPC classification number: G11B5/4826 ,  G11B5/483 ,  G11B5/484 ,  G11B5/4853 ,  G11B5/4873

Abstract: A slider and a microactuator element are disposed on a gimbal portion of a flexure. The gimbal portion comprises a metal base, an electrically insulating resin layer, a conductor disposed on the resin layer, an electrically insulating adhesive block, and an electrically conductive paste. The adhesive block secures an end portion of the microactuator element to the metal base. The conductive paste is provided between the conductor and an electrode of the microactuator element. A first adhesive interface extending along the thickness of the resin layer, a second adhesive interface extending along a surface of the resin layer, and a corner portion are formed between the metal base and the conductive paste.

Abstract translation: 滑块和微致动器元件设置在挠曲件的万向节上。 万向节部分包括金属基底，电绝缘树脂层，设置在树脂层上的导体，电绝缘粘合块和导电膏。 粘合剂块将微致动器元件的端部固定到金属基底。 在导体和微致动器元件的电极之间设置导电膏。 沿着树脂层的厚度延伸的第一粘合界面，沿着树脂层的表面延伸的第二粘合界面和角部形成在金属基底和导电膏之间。

公开(公告)号：US20140085754A1

公开(公告)日：2014-03-27

申请号：US14036502

申请日：2013-09-25

Applicant: NHK SPRING CO., LTD.

Inventor： Masao HANYA ,  Kenichi TAKIKAWA ,  Toshiki ANDO

IPC: G11B5/48

CPC classification number: G11B5/4813 ,  G11B5/4826 ,  G11B5/483 ,  G11B5/484 ,  G11B5/4873

Abstract: A slider and microactuator elements are disposed on a gimbal portion of a flexure. A tongue of the gimbal portion has a first tongue portion, a second tongue portion, and a hinge portion. A leading-side portion of the slider is movably disposed on the first tongue portion. A trailing-side portion of the slider is secured to the second tongue portion. The hinge portion is formed between the first tongue portion and the second tongue portion. The gimbal portion is provided with a damper member includes a viscoelastic material layer and a constrained plate. The damper member comprises a first damper and a second damper. The hinge portion is exposed between the first damper and the second damper. A dimple on a load beam contacts the hinge portion at a point of contact.

Abstract translation: 滑块和微型致动器元件设置在挠曲件的万向节上。 万向节的舌部具有第一舌部，第二舌部和铰链部。 滑块的前侧部分可移动地设置在第一舌部上。 滑块的后侧部分固定到第二舌部。 铰链部分形成在第一舌部和第二舌部之间。 万向节部分设置有阻尼构件，该阻尼构件包括粘弹性材料层和约束板。 阻尼器构件包括第一阻尼器和第二阻尼器。 铰链部分暴露在第一阻尼器和第二阻尼器之间。 负载梁上的凹坑在接触点处接触铰链部分。

公开(公告)号：US20150055253A1

公开(公告)日：2015-02-26

申请号：US14457888

申请日：2014-08-12

Applicant: NHK SPRING CO., LTD.

Inventor： Kenichi TAKIKAWA ,  Toshiki ANDO

IPC: G11B5/48

CPC classification number: G11B5/4833 ,  G11B5/4826

Abstract: A slider and microactuator elements are arranged on a gimbal portion of a flexure. A conducting member includes tongue conductive circuit portions, and unsupported conductive circuit portions which do not overlap with a metal base. The unsupported conductive circuit portions are disposed between arms of an outrigger portion. Bendable portions for reducing bending stiffness are formed in the unsupported conductive circuit portions, respectively. End portions of the microactuator elements are secured to supporting portions of a tongue, respectively. Each of bridge members is provided between the corresponding supporting portion of the tongue and the corresponding unsupported conductive circuit portion.

Abstract translation: 滑块和微型致动器元件布置在挠曲件的万向节上。 导电构件包括舌状导电电路部分和不与金属基底重叠的不支撑的导电电路部分。 未支撑的导电电路部分设置在外伸支架部分的臂之间。 分别在未支撑的导电电路部分中形成用于减小弯曲刚度的弯曲部分。 微致动器元件的端部分别固定到舌头的支撑部分。 每个桥构件设置在舌片的对应的支撑部分和相应的未支撑的导电电路部分之间。

公开(公告)号：US20140055885A1

公开(公告)日：2014-02-27

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: G11B5/48

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。