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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

JP2012037056A Fluid bearing device and disk driving motor with the same 有权
标题翻译：流体轴承装置及其驱动电动机
公开(公告)号：JP2012037056A
公开(公告)日：2012-02-23
申请号：JP2011245156
申请日：2011-11-09
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： KODAMA MITSUO , NONAKA TAKEHITO
IPC分类号： F16C33/74 , F16J15/40 , H02K5/167
摘要： PROBLEM TO BE SOLVED: To precisely performing the center alignment of a tapered ring so as to constitute a tapered seal part while having the tapered ring separately from a sleeve to cope with the problem that the rotational vibration of a rotor is increased due to that the tapered seal part is integrated with the sleeve.SOLUTION: The fluid bearing device has a shaft, the sleeve, and lubricating fluid, the tapered ring at the end of the sleeve, and annular protruding wall at the end of the sleeve, at least one of the ring inner periphery and the shaft outer periphery is formed into a slope, the tapered ring is one that will buy in adhered to the end face of the sleeve with the first adhesive and is adhered to the inner periphery of the protruding wall with the second adhesive different from the first adhesive, and the ring outer periphery is fixed to the inner periphery of the protruding wall so as to come into contact with the same.
摘要翻译：要解决的问题：为了精确地执行锥形环的中心对准以构成锥形密封部分，同时具有与套筒分开的锥形环，以应对转子的旋转振动增加的问题锥形密封部分与套筒集成在一起。解决方案：流体轴承装置具有轴，套筒和润滑流体，套筒端部处的锥形环和套筒端部处的环形突出壁，至少一个环内周边和轴外周形成斜面，锥形环是利用第一粘合剂粘附到套筒的端面而购买的锥形环，并且与第一粘合剂不同的第二粘合剂粘附到突出壁的内周粘合剂，并且环外周边固定到突出壁的内周以与其接触。版权所有（C）2012，JPO＆INPIT

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