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公开(公告)号：US11705158B2
公开(公告)日：2023-07-18
申请号：US17589824
申请日：2022-01-31
申请人： HOYA CORPORATION
发明人： Masao Takano , Shinji Eda
IPC分类号： G11B17/02 , G11B17/038
CPC分类号： G11B17/021 , G11B17/038
摘要： A method for manufacturing the ring-shaped glass spacer to be arranged in contact with a magnetic disk in a hard disk drive apparatus, including: preparing a ring-shaped glass blank; and grinding main surfaces of the ring-shaped glass blank by using grinding pads that include diamond particles as fixed abrasive particles.
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公开(公告)号：US20220157340A1
公开(公告)日：2022-05-19
申请号：US17589824
申请日：2022-01-31
申请人： HOYA CORPORATION
发明人： Masao TAKANO , Shinji EDA
IPC分类号： G11B17/02 , G11B17/038
摘要： A method for manufacturing the ring-shaped glass spacer to be arranged in contact with a magnetic disk in a hard disk drive apparatus, including: preparing a ring-shaped glass blank; and grinding main surfaces of the ring-shaped glass blank by using grinding pads that include diamond particles as fixed abrasive particles.
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公开(公告)号：US11176963B1
公开(公告)日：2021-11-16
申请号：US17016326
申请日：2020-09-09
摘要： A brake crawler for an elevator-type hard disk drive generally includes a first and second set of clamp arms vertically arranged, each of the first and second sets of clamp arms being capable of exerting a clamping force on a shaft or slider via activation or deactivation of an actuator element associated with each set of clamp arms. The brake crawler further includes an actuator element disposed between the first and second set of clamp arms which allows for movement of the first set of clamp arms away from the second set of clamp arms upon a change in state of the actuator element. Via a specific sequence of activating and deactivating various of the actuator elements associated with the brake crawler, the brake crawler is capable of inch worm-type movement up and down the shaft.
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公开(公告)号：US11031037B1
公开(公告)日：2021-06-08
申请号：US16900764
申请日：2020-06-12
发明人： Jon M. Garbarino
摘要： An approach to a reduced-head hard disk drive (HDD) involves an elevator platform assembly for moving an actuator assembly, one or more bearing assemblies, and a load/unload ramp along one or more support posts to provide a head slider access to at least two different recording disk media of a disk stack. The HDD may include a piezoelectric actuator locking mechanism integral to one of the bearing assemblies, such that actuation of the actuator either locks or unlocks the locking mechanism relative to a corresponding support post. When unlocked, the elevator platform assembly can be translated along the length of the disk stack via a motor.
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公开(公告)号：US20200211596A1
公开(公告)日：2020-07-02
申请号：US16634128
申请日：2018-10-01
申请人： HOYA CORPORATION
发明人： Masao TAKANO , Shinji EDA
IPC分类号： G11B17/02 , G11B17/038
摘要： In order to suppress the occurrence of adhesion between magnetic disks and spacers when the magnetic disks and the spacers are removed from a hard disk drive apparatus in which the magnetic disks and the spacers are installed, a surface roughness Ra of a main surface of a ring-shaped glass spacer to be arranged in contact with a magnetic disk is set to be not larger than 1.0 μm, and an average inclination RΔa of the main surface is set to be at least 0.02.
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公开(公告)号：US09520153B2
公开(公告)日：2016-12-13
申请号：US14678551
申请日：2015-04-03
CPC分类号： G11B17/021 , G11B25/043 , G11B33/14 , G11B33/148
摘要： Certain exemplary aspects of the present disclosure are directed towards an apparatus including a base deck, a plurality of storage mediums (e.g., discs) and a plurality of disc separator plates. The base deck includes a sidewall forming a cavity to house the storage medium, with slots in the sidewall in which each disc separator plate extends. The disc separator plates extend into spaces between peripheral ends of adjacent ones of the storage medium. This arrangement can be used to provide rigid coupling of the separator plates, which can mitigate issues relating to vibration or shock. Further, air flow can be mitigated in this regard, such as to reduce effects upon a magnetoresistive transducer that reads data from the storage mediums.
摘要翻译： 本公开的某些示例性方面涉及包括底板，多个存储介质（例如盘）和多个盘分离板的装置。 基座甲板包括形成容纳存储介质的空腔的侧壁，每个盘分离板延伸在侧壁中的槽。 盘分离器板延伸到相邻的存储介质的周边端部之间的空间。 这种布置可用于提供隔板的刚性联接，这可以减轻与振动或冲击有关的问题。 此外，在这方面可以减轻气流，例如减少对从存储介质读取数据的磁阻换能器的影响。
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公开(公告)号：US09311955B2
公开(公告)日：2016-04-12
申请号：US14146408
申请日：2014-01-02
IPC分类号： B29C65/00 , B32B37/00 , F16C32/06 , H02K5/16 , H02K7/08 , G11B17/02 , B21K1/10 , G11B19/20 , B29C65/48
CPC分类号： G11B19/2036 , B29C65/48 , B29C66/40 , F16C32/0633 , G11B19/2018 , Y10T29/49645 , Y10T156/1025 , Y10T428/24562
摘要： Methods for adhering parts together using part gap spacers are provided herein. Part gap spacers are formed in a selected pattern and a selected height on a surface of at least one surface of two parts to be oppositely disposed. When disposed opposite each other, at least some of the part gap spacers contact the opposite surface, and establish a standoff distance that is generally uniform, and thereby creating voids. Adhesive is disposed in at least some of the voids to adhere the part surfaces to each other. Further methods comprise forming part gap spacers on multiple sides of a third part to be disposed intermediate two surfaces. The part gap spacers can be formed in a variety of shapes, including bumps, tapers, ribs, and flange edges.
摘要翻译： 本文提供了使用部分间隙垫片将部件粘合在一起的方法。 部分间隙间隔物以选定的图案形成，并且两个部分的至少一个表面的表面上的选定高度相对设置。 当彼此相对设置时，部分间隙间隔件中的至少一些与相对表面接触，并且建立大致均匀的间隔距离，从而产生空隙。 粘合剂设置在至少一些空隙中以将部件表面彼此粘合。 进一步的方法包括在第三部分的多个侧面上形成部分间隙隔离物以设置在两个表面之间。 部件间隙垫片可以形成为各种形状，包括凸块，锥形，肋和凸缘边缘。
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8.发明授权Rotary spindle having a disk clamp bottom land facing and in contact with a shaft top land 有权旋转主轴具有盘夹底面，面对并与轴顶面接触公开(公告)号：US09196292B1
公开(公告)日：2015-11-24
申请号：US14615339
申请日：2015-02-05
发明人： Diep L. Nguyen , Ronald G. Ilagan , Klaus Kloeppel
IPC分类号： G11B17/02 , G11B17/028
CPC分类号： G11B17/0287 , G11B17/0284
摘要： A rotary spindle has a rotatable shaft that defines a shaft axis of rotation, and has a shaft top land that is normal to the shaft axis of rotation. A disk mounting hub has an outer disk mounting surface, and has an inner cylindrical bore with an inner cylindrical surface that faces and is in radial compression with an outer cylindrical surface of the shaft at a cylindrical hub-to-shaft interface. The cylindrical hub-to-shaft interface is substantially concentric about the shaft axis of rotation. A disk clamp is fastened to the rotatable shaft, and the disk clamp has a clamp bottom land that faces and is in contact with the shaft top land.
摘要翻译： 旋转主轴具有限定轴的旋转轴的旋转轴，并且具有垂直于轴的旋转轴线的轴顶部平台。 盘安装毂具有外盘安装表面，并且具有内圆柱形孔，内圆柱形表面面向并处于径向压缩，轴的外圆柱形表面在圆柱形毂到轴界面处。 圆柱形毂到轴界面基本上围绕轴的旋转轴线同心。 盘式夹具固定在可旋转的轴上，并且盘夹具具有面向并与轴顶面接触的夹具底面。
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公开(公告)号：US09013829B2
公开(公告)日：2015-04-21
申请号：US14267032
申请日：2014-05-01
申请人： Nidec Corporation
发明人： Akinobu Sumiji
CPC分类号： H02K7/086 , F16C17/105 , F16C33/107 , F16C2240/34 , F16C2240/40 , F16C2240/70 , F16C2370/12 , G11B19/2009 , G11B19/2036 , H02K7/083
摘要： A spindle motor includes an upper bearing portion and a lower bearing portion each of which is inclined with respect to a central axis. The upper bearing portion includes an upper dynamic pressure generating groove defined in at least one of an upper outer circumferential surface of a shaft portion and an upper inner circumferential surface of a sleeve. The lower bearing portion includes a lower dynamic pressure generating groove defined in at least one of a lower outer circumferential surface of the shaft portion and a lower inner circumferential surface of the sleeve. The radial distance between a lower end portion of the upper dynamic pressure generating groove and the central axis is shorter than the radial distance between an upper end portion of the lower dynamic pressure generating groove and the central axis.
摘要翻译： 主轴电动机包括上轴承部分和下轴承部分，每个轴承部分相对于中心轴线倾斜。 上轴承部分包括限定在轴部的上外周表面和套筒的上内周表面中的至少一个中的上动压产生槽。 下轴承部分包括限定在轴部的下外周表面和套筒的下内周表面中的至少一个中的下动压产生槽。 上动压产生槽的下端部与中心轴之间的径向距离比下动压产生槽的上端部与中心轴之间的径向距离短。
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公开(公告)号：US08995083B2
公开(公告)日：2015-03-31
申请号：US13973441
申请日：2013-08-22
发明人： Duck Young Kim
CPC分类号： G11B19/2036 , F16C17/107 , F16C32/06 , F16C2370/12
摘要： There are provided a spindle motor and a hard disk drive including the same. The spindle motor includes: a sleeve supporting a shaft so that an upper end of the shaft protrudes upwardly in an axial direction and a bearing clearance filled with a lubricating fluid formed between the sleeve and the shaft; a housing provided so as to enclose an outer peripheral surface of the sleeve and forming a circulation hole between the housing and the sleeve in the axial direction; and a rotor hub fixedly installed on an upper end portion of the shaft in the axial direction, wherein a connection part is formed between the housing and the rotor hub so as to allow a sealing part on which a liquid-vapor interface is disposed and the circulation hole to be in communication with each other.
摘要翻译： 提供了主轴电动机和包括该主轴电动机的硬盘驱动器。 主轴电动机包括：支撑轴的套筒，使得轴的上端沿轴向向上突出，并且轴承间隙填充有形成在套筒和轴之间的润滑流体; 壳体，其设置成包围套筒的外周面，并且在轴向上在壳体和套筒之间形成循环孔; 以及固定地安装在所述轴的轴向上端部的转子轮毂，其中，在所述壳体和所述转子轮毂之间形成有连接部，以便允许其上设置液体 - 蒸气界面的密封部分和 循环孔彼此连通。
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