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1. 发明专利

JP2011021631A Disk drive device 有权
标题翻译：磁盘驱动器
公开(公告)号：JP2011021631A
公开(公告)日：2011-02-03
申请号：JP2009164831
申请日：2009-07-13
申请人： Alphana Technology Co Ltd , アルファナテクノロジー株式会社
发明人： NONAKA TAKEHITO , MAEDA TOSHITERU
IPC分类号： F16C33/74 , F16C17/10 , F16C33/20 , G11B19/20
CPC分类号： F16C33/745 , F16C17/107 , F16C33/103 , F16C2240/40 , F16C2370/12
摘要： PROBLEM TO BE SOLVED: To provide a disk drive device reducing reduction of lubricant and suppressing shortening of useful life in a state of leveling a shaft of the disk drive device including a fluid dynamic pressure bearing. SOLUTION: A bearing unit of the disk drive device includes a capillary seal part formed by a sleeve recessed part 1b and a shaft recessed part 7a, and having a gap between the sleeve recessed part 1b and the shaft recessed part 7a formed so as to expand toward a side of a hub 6 of a sleeve 1. When a diameter of an outer circumference of an inclination starting end 7b of a base member side of the shaft recessed part 7a is D0, a diameter of an inner circumference of an inclination starting end 1e of a hub 6 side of the sleeve recessed part 1b is D1, a diameter of an opposing outer circumference 7c of the shaft recessed part facing the inner circumference of the inclination starting end 1e of the sleeve recessed part 1b in a radial direction is D2, and a diameter of the most recessed inner circumference 1c of the sleeve recessed part 1b is D3, D2 is smaller than D0, D3 is larger than D1, and a difference between D3 and D0 is larger than a difference between D0 and D2. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种在包括流体动压轴承的盘驱动装置的轴的调平状态下提供减少润滑剂减少并且抑制使用寿命缩短的盘驱动装置。解决方案：盘驱动装置的轴承单元包括由套筒凹部1b和轴凹部7a形成的毛细管密封部，并且在套筒凹部1b和轴凹部7a之间形成有间隙朝向套筒1的轮毂6的侧面扩张。当轴凹部7a的基部构件侧的倾斜起始端7b的外周的直径为D0时，内周的直径套筒凹部1b的轮毂6侧的倾斜开始端1e为D1，轴凹部的相对的外周面7c的直径与套筒凹部1b的倾斜开始端1e的内周面成径向方向为D2，套筒凹部1b的最凹陷内周1c的直径为D3，D2小于D0，D3大于D1，D3和D0之间的差大于D0和 D2。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010250912A Disk drive device 有权
标题翻译：磁盘驱动器
公开(公告)号：JP2010250912A
公开(公告)日：2010-11-04
申请号：JP2009101175
申请日：2009-04-17
申请人： Alphana Technology Co Ltd , アルファナテクノロジー株式会社
发明人： MAEDA TOSHITERU , TASHIRO TOMOYUKI
IPC分类号： G11B25/04
摘要： PROBLEM TO BE SOLVED: To reduce vibration of a hard disk drive in regard to a disk drive device. SOLUTION: The hard disk drive 100 includes: an upper dynamic pressure plate 34 on an upper side of a magnetic recording disk 200; and a lower dynamic pressure plate 32 on a lower side of the magnetic recording disk 200. When the magnetic recording disk 200 rotates, a dynamic pressure is produced in an air between the upper dynamic pressure plate 34 and the magnetic recording disk 200. A dynamic pressure is also produced in the air between the lower dynamic pressure plate 32 and the magnetic recording disk 200. By the dynamic pressures, the magnetic recording disk 200 is supported in a thrust direction. A recording/reproducing head records data on the magnetic recording disk 200, and reads the data from the magnetic recording disk 200. The upper dynamic pressure plate 34 is disposed on the same side as the recording/reproducing head when viewed from the magnetic recording disk 200, in a manner to avoid a swing area of the recording/reproducing head. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：减少硬盘驱动器相对于磁盘驱动装置的振动。解决方案：硬盘驱动器100包括：在磁记录盘200的上侧的上动压板34; 以及在磁记录盘200的下侧的下动压板32.当磁记录盘200旋转时，在上动态压板34和磁记录盘200之间的空气中产生动压。动态在下动压板32和磁记录盘200之间的空气中也产生压力。通过动压，磁记录盘200沿推力方向被支撑。记录/再现头将数据记录在磁记录盘200上，并从磁记录盘200读取数据。当从磁记录盘观察时，上动压板34设置在与记录/再现头相同的一侧 200，以避免记录/再现头的摆动区域的方式。版权所有（C）2011，JPO＆INPIT

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