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1. 发明专利

JP2011058595A Disk drive device 有权
标题翻译：磁盘驱动器
公开(公告)号：JP2011058595A
公开(公告)日：2011-03-24
申请号：JP2009211263
申请日：2009-09-14
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： MIZUNO MASAFUMI , KODAMA MITSUO , IWAI HIROSHI
IPC分类号： F16C17/10 , F16C33/10 , G11B19/20
CPC分类号： F16C33/745 , B23B5/00 , B23B2260/108 , F16C17/026 , F16C17/107 , F16C33/107 , F16C2240/40 , F16C2370/12 , G11B19/2036 , Y10T29/42 , Y10T82/10 , Y10T83/04
摘要： PROBLEM TO BE SOLVED: To provide a disk driving device which can stably perform a process of reading/writing even under a vibration-prone environment by keeping the bearing stiffness of fluid dynamic pressure bearing even when a driving current is reduced. SOLUTION: The disk driving device includes a hub 20 possible to mount a recording disk, a shaft 22, a sleeve 16 which houses the shaft 22 and rotates relatively to the shaft 22, a radial space section formed between an inner circumferential surface of the sleeve 16 and a peripheral surface of the shaft 22, a radial dynamic pressure generating section RB generating a radial dynamic pressure between at least one part of the inner circumferential surface of the sleeve 16 and the peripheral surface of the shaft 22 in the radial space section, and lubricant 28. Furthermore, a length in a radial direction of the radial dynamic pressure generating section RB is formed longer than a diameter of the radial dynamic pressure generating section RB so that a radial dynamic pressure, fixed using the length in the radial direction of the radial dynamic pressure generating section RB and the diameter of the radial dynamic pressure generating section RB as parameters, may become a predetermined minimum standard value or more. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供即使在驱动电流降低的情况下，通过保持流体动压轴承的轴承刚度，也能够在易于振动的环境下稳定地执行读/写处理的盘驱动装置。解决方案：盘驱动装置包括可以安装记录盘的轮毂20，轴22，容纳轴22并相对于轴22旋转的套筒16，形成在内周面套筒16的外周表面和轴22的外周表面的径向动压产生部分RB在径向上产生径向动压力，该径向动压产生部分RB在套筒16的内圆周表面的至少一部分与轴22的周面之间产生径向动压空间部分和润滑剂28.此外，径向动压产生部分RB的径向长度形成为比径向动压产生部分RB的直径长，使得使用长度方向固定的径向动压径向动压产生部分RB的径向方向和径向动压产生部分RB的直径作为参数可以变成预定的微型妈妈标准值以上。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010176776A Disk drive device 有权
标题翻译：磁盘驱动器
公开(公告)号：JP2010176776A
公开(公告)日：2010-08-12
申请号：JP2009020953
申请日：2009-01-30
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： YAMADA TAKUJI , OMURA YUJI , KODAMA MITSUO
IPC分类号： G11B19/20 , F16C17/04 , F16C17/10 , F16C33/10 , F16C33/14
摘要： PROBLEM TO BE SOLVED: To provide a disk driving device 100 suppressing scattering of a lubricant filled between a rotating body and a fixed body, even when receiving impacts, such as falls.
SOLUTION: A sleeve 16 supports a shaft 22. A housing member 14 circularly encloses the sleeve 16 and is disposed so that the end part of the sleeve 16 is protruded. A base member 10 holds the housing member 14 and fixes a stator core 12 so as to enclose the housing member 14 in a circular form. A hub 20 fixes a magnet to a circular part concentric with the shaft 22 so as to be opposed to the stator core 12 fixed to the base member 10, and thereby rotates integrally with the shaft to make a recording disk drive. A thrust member 26 rotates integrally with the hub 20 and includes a drooping part 26c and a ring part 26e.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使在接收诸如跌落的冲击时，提供一种抑制填充在旋转体和固定体之间的润滑剂飞散的盘驱动装置100。解决方案：套筒16支撑轴22.壳体构件14圆周地包围套筒16并且被布置成使得套筒16的端部突出。基部构件10保持壳体构件14并固定定子芯12，以便以圆形形式包围壳体构件14。轮毂20将磁体固定在与轴22同心的圆形部分上，以与固定在基座部件10上的定子铁芯12相对，从而与轴一体地旋转以形成记录盘驱动。推力构件26与轮毂20一体地旋转并且包括下垂部分26c和环形部分26e。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2012048798A Rotary apparatus and method for manufacturing rotary apparatus 审中-公开
标题翻译：旋转装置和制造旋转装置的方法
公开(公告)号：JP2012048798A
公开(公告)日：2012-03-08
申请号：JP2010192496
申请日：2010-08-30
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
IPC分类号： G11B33/14 , F16C17/02 , F16C33/10 , F16C33/12 , F16C33/14 , G11B19/20 , G11B25/04 , H02K7/08
CPC分类号： H02K3/522 , G11B19/2009 , H02K29/03 , H02K2201/03 , Y10T29/49009
摘要： PROBLEM TO BE SOLVED: To provide a rotary apparatus for preventing air in a storage space from leaking out through a sleeve surface exposed to outside air while forming a sleeve with a porous material.SOLUTION: In the rotary apparatus, a base 50 is connected to a cover to form the storage space and has a bearing hole 56 for making outside air communicate with the storage space. The sleeve 80 is fitted into the bearing hole 56 and is formed with a porous material. A circumferential lower end 83 of the sleeve 80 is exposed to outside air from the bearing hole 56, and at least a portion of pores in the circumferential lower end exposed to outside air is closed.
摘要翻译：要解决的问题：提供一种用于防止存储空间中的空气通过暴露于外部空气的套筒表面而泄漏的旋转装置，同时用多孔材料形成套筒。解决方案：在旋转装置中，基座50连接到盖子以形成存储空间，并且具有用于使外部空气与存储空间连通的轴承孔56。套筒80装配到轴承孔56中并形成多孔材料。套筒80的周向下端83从轴承孔56暴露于外部空气，并且暴露于外部空气的周向下端中的孔的至少一部分被封闭。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2011223820A Disk drive device 审中-公开
标题翻译：磁盘驱动器
公开(公告)号：JP2011223820A
公开(公告)日：2011-11-04
申请号：JP2010092827
申请日：2010-04-14
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： WATANABE TAKANORI , KODAMA MITSUO , IWAI HIROSHI , NISHIO AKIRA
IPC分类号： H02K21/22 , F16C17/10 , G11B19/20
CPC分类号： H02K3/28 , G11B17/0287 , G11B19/2009 , G11B25/043 , H02K3/18 , H02K5/1675 , H02K21/22
摘要： PROBLEM TO BE SOLVED: To provide a thin and stable disk drive device.SOLUTION: The disk drive device includes: a base member; a hub on which a recording disk is placed; a bearing unit arranged on the base member, for rotatably supporting the hub; and a spindle drive unit for rotationally driving the hub. In the disk drive device, the spindle drive unit includes a stator core having salient poles, a coil wound around each of the salient poles, and a magnet facing the salient poles and having a plurality of magnetic poles arranged in a circumferential direction, and the hub includes an outer cylindrical portion formed of a magnetic material and engaged with an inner periphery of the recording disk, and an inner cylindrical portion fixing an outer periphery of the magnet. The number of magnetic poles is an even number in a range of 10 to 16, and the number of salient poles is a multiple of 3 in a range of 12 to 24.
摘要翻译：要解决的问题：提供一种薄而稳定的磁盘驱动器件。磁盘驱动装置包括：基座部件; 记录盘放置在其上的集线器; 轴承单元，其布置在所述基座构件上，用于可旋转地支撑所述轮毂; 以及用于旋转地驱动轮毂的主轴驱动单元。在盘驱动装置中，主轴驱动单元具有：具有凸极的定子铁心，卷绕在每个凸极上的线圈和面向凸极的磁铁，并且具有沿圆周方向排列的多个磁极，毂包括由磁性材料形成并与记录盘的内周接合的外圆柱形部分和固定磁体外周的内圆柱形部分。磁极的数量为10〜16的偶数，凸极数为12〜24的倍数3。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2011150770A Disk drive device 有权
标题翻译：磁盘驱动器
公开(公告)号：JP2011150770A
公开(公告)日：2011-08-04
申请号：JP2010013195
申请日：2010-01-25
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 , KUROKAWA YOSHIO
IPC分类号： G11B19/20
CPC分类号： G11B19/2045 , F16C17/107 , F16C33/74 , F16C2370/12 , G11B19/2036 , H02K5/1675 , H02K7/09
摘要： PROBLEM TO BE SOLVED: To provide a long life disk drive device with the avoidance of a large size, by elongating marginal evaporation time of a lubricant by suppressing the evaporation speed of the lubricant filled in a fluid dynamic pressure bearing. SOLUTION: In the disk drive device 100, a hub 20 includes an outer circumferential wall portion 20c configured to retain a recording disk 120. On the plane of the hub 20 side, a base member 10 includes a cylindrical portion having the rotation axis of the hub 20 as a center axis. The fluid dynamic pressure bearing retains the lubricant 28, so as to support the hub 20 in a rotatable manner to the base member 10. A ring-shaped suction plate 44 including a magnetic material is fixed to the base member 10 in a manner to oppose to a magnet 24 in the axial direction. The outer circumferential wall portion 20c is configured to surround the suction plate 44 in such a manner that the range of the outer circumferential wall portion 20c in the axial direction overlaps with the range of the suction plate 44 in the axial direction. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过抑制填充在流体动压轴承中的润滑剂的蒸发速度，通过延长润滑剂的边际蒸发时间来提供避免大尺寸的长寿命盘驱动装置。解决方案：在盘驱动装置100中，毂20包括构造成保持记录盘120的外周壁部分20c。在轮毂20侧的平面上，基部构件10包括具有旋转的圆柱形部分轮毂20的轴为中心轴。流体动压轴承保持润滑剂28，以便以可旋转的方式支承轮毂20到底座部件10.包括磁性材料的环形吸盘44以与之相对的方式固定在基座部件10上相对于磁体24在轴向上。外周壁部20c构成为以使外周壁部20c的轴向的范围与吸引板44的轴向的范围重叠的方式包围吸盘44。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2010138316A Bearing lubricant, bearing and disc driving unit 审中-公开
标题翻译：轴承润滑剂，轴承和驱动单元
公开(公告)号：JP2010138316A
公开(公告)日：2010-06-24
申请号：JP2008317062
申请日：2008-12-12
申请人： Alphana Technology Co Ltd , Balbis:Kk , アルファナテクノロジー株式会社 , 株式会社バルビス
发明人： KODAMA MITSUO , YAMADA TAKUJI , ANZAI HIROYUKI
IPC分类号： C10M169/04 , C10M105/38 , C10M129/10 , C10M133/40 , C10M137/02 , C10M137/04 , C10N30/02 , C10N40/02 , F16C33/10 , G11B19/20
摘要： PROBLEM TO BE SOLVED: To provide a technique capable of further improving the performance of a bearing such as a possibility of using the bearing in a broad temperature range.
SOLUTION: The bearing lubricant includes a base oil containing 2-ethyl-2-methyl-1,3-propanediol and an ester compound composed of one or more 5-12C carboxylic acids represented by formula (1) (wherein R
1 and R
2 are each a 4-11C hydrocarbon group) and having a kinematic viscosity at 40°C of 7-15 mPa and a pour point of not higher than -60°C.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能够进一步提高诸如在宽温度范围内使用轴承的可能性的轴承的性能的技术。解决方案：轴承润滑剂包括含有2-乙基-2-甲基-1,3-丙二醇的基础油和由一种或多种由式（1）表示的5-12C羧酸组成的酯化合物（其中R < SB> 1 和R 2 各自为4-11C烃基），并且在40℃下的运动粘度为7-15mPa，倾点不高于-60 C。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2012237327A Rotating apparatus 审中-公开
标题翻译：旋转装置
公开(公告)号：JP2012237327A
公开(公告)日：2012-12-06
申请号：JP2011105024
申请日：2011-05-10
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
IPC分类号： F16C17/10 , F16C33/10 , F16C33/14 , G11B19/20 , H02K5/167 , H02K21/22
CPC分类号： F16C35/02 , F16C2370/12 , G11B19/2009
摘要： PROBLEM TO BE SOLVED: To provide a rotating apparatus suitable for weight reduction or thinning while maintaining impact resistance.SOLUTION: The rotating apparatus includes: a rotating body 6 having a hub 28 on which a recording disk 8 is to be placed, and a shaft 26; and a fixed body 7 including a sleeve 15, a housing 13, and a base 4. A lubricant 40 is interposed continuously with the rotating body 6 and the fixed body 7. The sleeve 15 is formed of sintered metal. The housing 13 has an encircling wall part 13a, a flange part 13c and a bottom part 13b which are integrally formed by press working.
摘要翻译：要解决的问题：提供适于减轻或减薄的旋转装置，同时保持耐冲击性。解决方案：旋转装置包括：旋转体6，具有轮毂28，记录盘8将放置在其上;轴26; 以及包括套筒15，壳体13和基座4的固定体7.润滑剂40与旋转体6和固定体7连续插入。套筒15由烧结金属形成。壳体13具有通过压力加工一体形成的环绕壁部13a，凸缘部13c和底部13b。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2012087867A Rotating apparatus and method of manufacturing rotating apparatus 审中-公开
标题翻译：旋转装置和制造旋转装置的方法
公开(公告)号：JP2012087867A
公开(公告)日：2012-05-10
申请号：JP2010234705
申请日：2010-10-19
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 , SUGIKI RYUSUKE , AOI AKIRA
IPC分类号： F16C17/10
CPC分类号： G11B19/2018 , F16C17/107 , F16C33/745 , F16C35/02 , F16C2370/12 , G11B5/40 , G11B5/5582 , H02K5/16 , Y10T29/49025 , Y10T29/49027 , Y10T29/49032 , Y10T29/53165
摘要： PROBLEM TO BE SOLVED: To provide a rotating apparatus capable of reducing the drop in shock resistance and the increase in drive current while retaining the drive performance even when attempts are made for downsizing, especially thinning in the shaft direction.SOLUTION: A disk drive device 100 as the rotating apparatus includes a hub 10, a base plate 50, and a bearing unit. The bearing unit includes a shaft housing member 83 joined to the hub 10 and having a through-hole in the center, a shaft 20 having a small diameter part 20e and a large diameter part 20f, a radial dynamic pressure groove, and a lubricant 92. The opening shape of a bearing hole 50e of the base plate 50 is formed larger than the outer shape of the large diameter part 20f. In the bearing unit, the large diameter part 20f is fixed by a hardening resin 94 interposed between the bearing hole 50e and the bearing unit.
摘要翻译：要解决的问题：提供一种能够减小耐冲击性的下降和驱动电流的增加同时保持驱动性能的旋转装置，即使当进行小型化，特别是在轴向上变薄时也是如此。解决方案：作为旋转装置的盘驱动装置100包括轮毂10，基板50和轴承单元。轴承单元包括连接到轮毂10并且在中心具有通孔的轴壳体部件83，具有小直径部分20e和大直径部分20f的轴20，径向动压力槽和润滑剂92 基板50的轴承孔50e的开口形状大于大直径部20f的外形。在轴承单元中，大直径部20f由介于轴承孔50e和轴承单元之间的硬化树脂94固定。版权所有（C）2012，JPO＆INPIT

9. 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

10. 发明专利

JP2011038564A Disk driving device 有权
标题翻译：磁盘驱动器
公开(公告)号：JP2011038564A
公开(公告)日：2011-02-24
申请号：JP2009184769
申请日：2009-08-07
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
IPC分类号： F16C17/02
CPC分类号： G11B19/2036 , F16C17/026 , F16C17/107 , F16C33/107 , F16C2240/30 , F16C2240/34 , F16C2240/40 , F16C2370/12
摘要： PROBLEM TO BE SOLVED: To provide a disk driving device capable of keeping its life long even when used without limiting a rotary shaft to a vertical direction, and maintaining reliability by assuring normal read/write of data. SOLUTION: In the disk driving device according to an embodiment, radial dynamic pressure corresponding portions RB1, RB2 are structured in such a manner that the diameters thereof expand toward the axially outside of a sleeve 42, and a shaft 28 is configured to be in surface-contact with the respective radial dynamic pressure corresponding portions RB1, RB2 when the rotational drive of the disk driving device is stopped. Moreover, a herringborn-shaped radial dynamic pressure groove is formed in the radial dynamic pressure corresponding portions RB1, RB2. The radial dynamic pressure groove in each of the radial dynamic pressure corresponding portions is formed in such a manner that the axially outside length from the turned-back portion of the herringborn-shape is longer than the axially inside length. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种即使在不将旋转轴限制在垂直方向的情况下使用也能够保持其使用寿命并且通过确保数据的正常读取/写入来保持可靠性的盘驱动装置。解决方案：在根据一个实施例的盘驱动装置中，径向动压对应部分RB1，RB2被构造成使其直径朝向套筒42的轴向外侧扩展，并且轴28被构造成当盘驱动装置的旋转驱动停止时，与相应的径向动压对应部分RB1，RB2表面接触。此外，在径向动压对应部分RB1，RB2中形成有环状的径向动压槽。每个径向动压对应部分中的径向动压槽形成为使得来自轮辋形状的折回部分的轴向外部长度长于轴向内部长度。版权所有（C）2011，JPO＆INPIT

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