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81. 发明授权

EP0209903B1 Disk drive apparatus 失效
标题翻译：磁盘驱动器
公开(公告)号：EP0209903B1
公开(公告)日：1992-02-19
申请号：EP86110152.5
申请日：1986-07-23
申请人： SONY CORPORATION
发明人： Tsukahara, Nobuhiko c/o Sony Corporation
IPC分类号： G11B17/028
CPC分类号： G11B17/0282 , G11B19/2009 , G11B23/0035

82. 发明公开

EP0450206A1 Disk file 失效
标题翻译：数据的磁盘空间。
公开(公告)号：EP0450206A1
公开(公告)日：1991-10-09
申请号：EP90303522.8
申请日：1990-04-02
申请人： International Business Machines Corporation
发明人： Lowe, Anthony Cyril
IPC分类号： G11B33/14 , G11B25/04
CPC分类号： G11B33/1473 , F16C37/007 , F16C2370/12 , G11B19/2009 , G11B25/043
摘要： A disk file is presented, having a container (3) for a hub assembly (6) including a stationary spindle (9) attached to the container; a clamp (13) for mounting a disk (11) on a hub (8); bearing means (14, 15), comprising a first bearing (14) located towards one end of the hub (8) and a second bearing (15) located towards the other, for rotatably mounting the hub (8) on the spindle (9); characterised in that the hub assembly (6) further comprises ventilation means (21, 22, 23) for directing an air flow into the hub assembly (6) through the bearing means (14, 15) and out of the hub assembly (6) into the container (3) through a connecting air passage (21) located in the spindle (9) permitting the air to flow through a filter (25). The ventilation means comprises a ventilated spindle (20) having first ventilation ducts (22) extending from the hub assembly into the air passage, and second ventilation ducts (23) extending from the air passage into the container.

83. 发明公开

EP0425312A2 Spindle motor assembly for a disk drive 失效
标题翻译： In-Wellen-MotorbaufürPlattenantrieb。
公开(公告)号：EP0425312A2
公开(公告)日：1991-05-02
申请号：EP90311777.8
申请日：1990-10-26
申请人： SEAGATE TECHNOLOGY INTERNATIONAL
发明人： Macleod, Donald James
IPC分类号： G11B19/20
CPC分类号： G11B19/2009
摘要： The present invention provides a spindle motor assembly comprising a fixed shaft (52) and a spindle hub (60) journaled co-axially for rotation about the fixed shaft, the spindle hub having an enlarged thickness flange portion (72) for supporting a disk stack and a reduced thickness rotor carrying portion (74) located adjacent at least one of a pair of spaced apart bearings (62) for rotably coupling the spindle hub to the fixed shaft. Magnet means (82) are carried by an outer surface of the rotor carrying portion of the spindle hub, and stator means (92, 94) having a plurality of fixed windings are arranged for co-operating with the magnet means to rotate the spindle hub with respect to the shaft.
摘要翻译：本发明提供了一种主轴电动机组件，其包括固定轴（52）和主轴毂（60），主轴毂（60）轴向同轴地围绕固定轴旋转，主轴毂具有扩大的厚度凸缘部分（72），用于支撑盘叠以及位于邻近一对间隔开的轴承（62）中的至少一个的减小厚度的转子承载部分（74），用于将主轴毂可旋转地联接到固定轴。磁体装置（82）由主轴毂的转子承载部分的外表面承载，并且具有多个固定绕组的定子装置（92,94）被布置成与磁体装置配合以使主轴毂相对于轴。

84. 发明公开

EP0292720A3 Method and apparatus for feeding card 失效
标题翻译：喂食方法和装置
公开(公告)号：EP0292720A3
公开(公告)日：1990-12-05
申请号：EP88106776.3
申请日：1988-04-27
申请人： POLAROID CORPORATION
发明人： Norris, Philip R.
IPC分类号： G11B17/02 , G11B19/10 , G11B19/20 , G11B25/04
CPC分类号： G06K19/044 , G11B7/0033 , G11B17/02 , G11B19/10 , G11B19/2009 , G11B25/04
摘要： There is disclosed an improved method of and apparatus for transporting an optical recording card along a predetermined path to a rotational reference axis whereat the card is rotated about so that concentric and/or spiral data tracks can be read by the optical reader.

85. 发明公开

EP0392500A2 Spindle motor 失效
标题翻译： Spindelmotor。
公开(公告)号：EP0392500A2
公开(公告)日：1990-10-17
申请号：EP90106941.9
申请日：1990-04-11
申请人： EBARA CORPORATION
发明人： Hisabe, Yasushi , Osada, Noriyuki , Ohtani, Toshihiro , Kishi, Masahiko , Sato, Yoshio , Konno, Daisuke , Miwa, Sachihiko , Kanamori, Toshiya , Aiyoshizawa, Shunichi , Kasahara, Kazuyuki , Hirokawa, Kazuto , Noda, Yumiko
IPC分类号： G11B19/20 , H02K7/04
CPC分类号： F16C17/107 , F16C25/045 , F16C27/063 , F16C27/08 , F16C2206/40 , F16C2370/12 , G11B19/2009 , H02K5/1677
摘要： A spindle motor comprising a stator (5) including a support shaft (2) positioned on a base, a cap-shaped rotor (6) rotatably and concentrically disposed around the support shaft, thrust and radial bearings (3, 4) disposed between the stator and the rotor, a stator coil (5) secured to the stator, and a rotor magnet member (6) secured to the rotor in opposing relation to the stator coil. The thrust and radial bearings are hydrodynamic bearings. A movable piece that constitutes a part of the thrust bearing is secured to the lower end of a cylindrical portion of the rotor and extended outwardly or inwardly from the cylindrical portion, or is disposed above the rotor. The stator coil (5) is secured to the outer peripheral portion of the support shaft above or below the radial bearing. The rotor magnet member (6) is secured to the inner peripheral surface or ceiling of the rotor. Either a radial or axial gap is provided between the stator coil and the rotor magnet member.
摘要翻译：一种主轴电动机，包括定子（5），定子（5）包括位于基座上的支撑轴（2），围绕所述支撑轴可旋转和同心地设置的盖形转子（6），设置在所述支架轴之间的推力和径向轴承（3,4）定子和转子，固定到定子的定子线圈（5）和与定子线圈相对的固定到转子的转子磁体构件（6）。推力和径向轴承是流体动力轴承。构成推力轴承的一部分的可动件固定在转子的圆筒部的下端，从圆筒部向外侧或内侧延伸，或者设置在转子的上方。定子线圈（5）在径向轴承的上方或下方固定在支撑轴的外周部分上。转子磁铁部件（6）固定在转子的内周面或天花板上。在定子线圈和转子磁体构件之间设置径向或轴向间隙。

86. 发明公开

EP0372638A1 Turntable assembly, method of manufacturing a turntable assembly, and disc player comprising a turntable assembly 失效
标题翻译：转台组件，一种制造转台组件，以及设置有一个转台组件转盘的方法。
公开(公告)号：EP0372638A1
公开(公告)日：1990-06-13
申请号：EP89203048.7
申请日：1989-12-01
申请人： Philips Electronics N.V.
发明人： Hartog, Pieter
IPC分类号： G11B17/028 , G11B19/20
CPC分类号： G11B17/0282 , B29C45/14467 , G11B19/2009
摘要： The invention relates to a turntable assembly for use in a disc player for rotating an optical or magneto-optical disc about an axis of rotation. The turntable assembly comprises a drive shaft (1), a turntable body (3) and a supporting ring (5) forming a supporting surface (P) for the disc. The turntable body is an injection-moulded product formed around the drive shaft by means of an injection moulding process and connected to the supporting ring while it is being moulded.
摘要翻译：本发明涉及一种用于在盘播放机中使用的转台组件进行约于旋转轴线光盘或磁 - 光盘的旋转。转台组件包括驱动轴（1），转盘主体（3）和支撑环（5）形成用于在盘的支撑面（P）。转台体是围绕通过注射成型工艺来驱动轴形成，并同时被模制它连接到所述支撑环的注射模制制品。

87. 发明公开

EP0361783A2 Disk file with symmetric housing 失效
标题翻译： Plattenspeicher mit对称性Gehäuse。
公开(公告)号：EP0361783A2
公开(公告)日：1990-04-04
申请号：EP89309595.0
申请日：1989-09-21
申请人： International Business Machines Corporation
发明人： Ferguson, Noel Stephen , Lieh-Chi, Jeffrey
IPC分类号： G11B25/04
CPC分类号： G11B25/043 , G11B19/2009
摘要： A data recording disk file includes a disk stack subassembly (10) and a linear actuator (16), both of which are supported by a unitary structure (18) which forms part of the disk file housing. The structure is symmetric about two perpendicular planes (A-A; B-B) and includes an open-ended portion (20) and an actuator portion (22). The disk stack subassembly, which includes an in-hub motor, is entirely supported in the open-ended portion by two parallel interior walls which are equally spaced from the first plane of the structure. The linear actuator is entirely supported in the actuator portion by two parallel side walls which are equally spaced from the second plane of the casting. The actuator is mounted to the side walls in its plane of symmetry, which coincides with the first plane of the casting, and with its linear access axis coincident with the intersection of the two planes. The disk file housing is made complete by an end cap (24) which attaches to the open-ended portion of the casting to enclose the disk stack subassembly, and by cover plates (26,28) and a casting end wall which enclose the actuator.
摘要翻译：数据记录磁盘文件包括盘组件组件（10）和线性致动器（16），它们都由构成磁盘文件外壳的一部分的整体结构（18）支撑。该结构关于两个垂直平面（A-A; B-B）对称，并且包括开口部分（20）和致动器部分（22）。包括轮毂内电动机的盘组件子组件通过与结构的第一平面等间隔开的两个平行的内壁完全支撑在开口部分中。线性致动器通过与铸件的第二平面等距离的两个平行的侧壁完全支撑在致动器部分中。致动器安装在其对称平面中的侧壁上，其与铸件的第一平面重合，并且其线性进入轴线与两个平面的交点重合。磁盘文件外壳由端盖（24）完成，端盖（24）连接到铸件的开口端部分以包围盘叠组件，以及盖板（26,28）和封闭致动器的铸造端壁。

88. 发明公开

EP0353866A1 Compact magnetic fluid low pressure seal 失效
标题翻译： KompakteMagnetflüssigkeitsdichtungfürNiederdruck。
公开(公告)号：EP0353866A1
公开(公告)日：1990-02-07
申请号：EP89306702.5
申请日：1989-06-30
申请人： Ferrofluidics Corporation
发明人： Raj, Kuldip , Moskowitz, Ronald
IPC分类号： F16J15/40 , G11B33/14
CPC分类号： G11B33/1473 , F16J15/43 , G11B19/2009
摘要： A bearing and magnetic fluid seal assembly includes a shaft mounted by axially spaced-apart bearings (52-54) for rotation relative to a housing (50). A magnetic fluid seal includes an annular magnet (60) axially positioned between the bearings (52-54) in the space (58) that is wasted and not utilized for any purpose, and a thin, disk-like annular polepiece (162) positioned between one of the bearings (52-54) and the environment to be protected by the seal. Magnetic flux from the magnet (60) is conducted by a magnetically permeable housing (50) or shaft (42) to an annular gap between the outside diameter of the polepiece (162) and the housing (50). A magnetic fluid (164) is retained in the gap by the magnetic flux, thereby providing an exclusion seal. Embodiments utilizing radially and axially polarized magnets are provided. A magnetic fluid seal can be provided at each end of the assembly. The bearings (52-54) supporting the shaft (42) can be magnetically permeable or nonmagnetic. The seal(s) can be electrically conducting or nonconducting depending upon the type of ferrofluid (164) used.
摘要翻译：轴承和磁性流体密封组件包括轴，其轴向间隔开的轴承（52-54）安装，用于相对于壳体（50）旋转。磁性流体密封件包括轴向定位在空间（58）中被浪费并且不用于任何目的的轴承（52-54）之间的环形磁体（60），以及薄的盘状环形极靴（162），其定位在一个轴承（52-54）和要被密封件保护的环境之间。来自磁体（60）的磁通量通过导磁壳体（50）或轴（42）传导到电极（162）的外径与壳体（50）之间的环形间隙。磁性流体（164）由磁通量保持在间隙中，从而提供排除密封。提供了利用径向和轴向极化磁体的实施例。可以在组件的每个端部设置磁性流体密封。支撑轴（42）的轴承（52-54）可以是磁性的或非磁性的。根据所使用的铁磁流体（164）的类型，密封件可以是导电的或不导电的。

89. 发明公开

EP0352214A2 D.C. motor 失效
标题翻译：直流电机
公开(公告)号：EP0352214A2
公开(公告)日：1990-01-24
申请号：EP89630120.7
申请日：1989-07-17
申请人： MUELLER AND SMITH, LPA
发明人： Petersen, Christian C.
IPC分类号： H02K29/00
CPC分类号： G11B19/2027 , G11B19/2009 , H02K5/10 , H02K21/12 , H02K29/03 , H02K2201/12 , Y10T29/49009
摘要： A P.M. d.c. motor (10) in which the permanent magnets (32, 34) thereof are provided as thin arcuate segments of predetermined length which rotate about a circular locus of core component (14, 16) defining poles. The paired permanent magnets are configured to slightly straddle the end surfaces of the core components as they pass thereover to effect a shear form of magnetic interaction with flux interaction regions or surfaces of the laminar core components. This serves to substantially minimize axially directed magnetic attractive forces including any time varying axial force terms which may be developed in consequence of commutation. Further a localize rotor balancing is achieved. A highly efficient core structure formed as a core base having outwardly extending legs which are bent perpendicularly upward to form upstanding core components is provided. Additionally, an aerodynamic seal is developed at the periphery of the rotor stator combination to provide for the isolation of any contaminants.
摘要翻译： P.M. 特区其中永磁体（32,34）设置为具有预定长度的薄弓形段的电动机（10），所述预定长度的弓形段围绕限定磁极的磁芯部件（14,16）的圆形轨迹旋转。成对的永磁体被配置成在其通过其上时略微跨过芯部件的端表面，以实现与层状芯部件的磁通量相互作用区域或表面的磁相互作用的剪切形式。这用于基本上最小化轴向定向的磁引力，包括由于换向而可能形成的任何随时间变化的轴向力项。进一步实现定位转子平衡。提供了一种形成为芯基的高效芯结构，该芯结构具有向外垂直向上弯曲以形成直立芯部件的向外延伸的腿。此外，在转子定子组合的外围形成空气动力学密封，以隔离任何污染物。

90. 发明公开

EP0302561A3 Saughaltevorrichtung zum Halten eines plattenförmigen Informationsträgers beim Abspielvorgang 失效
标题翻译： SUCCTION控股设备在复制期间保留类似信息载体
公开(公告)号：EP0302561A3
公开(公告)日：1990-01-24
申请号：EP88201627.2
申请日：1988-07-28
申请人： Philips and Du Pont Optical Deutschland GmbH , Philips and Du Pont Optical Company
发明人： Schnorr, Thomas , Hannemann, Jürgen
IPC分类号： G11B17/028 , G11B19/20
CPC分类号： G11B17/0282 , G11B19/2009
摘要： Bei einer Saughaltevorrichtung zum Halten eines optisch auslesbaren, plattenförmigen Informationsträgers, die diesen während des Auslesens mittels eines Abspielgerätes in ihrer Halterseite mittels Vakuum hält, ist zum planen Aufspannen des Informationsträgers vorgesehen, daß die Vorrichtung auf ihrer Halteseite mit Vakuum beaufschlagte Vertiefungen aufweist. Das Vakuum ist mittels eines Schlauches und eines drehbar gelagerten Anschlußstückes, das eine luftdichte Durchführung aufweist, der Vorrichtung zugeführt. Die Vorrichtung ist drehbar gelagert und mit einem mittels des Vakuums angesaugten Informationsträger auf den Drehteller eines Abspielgerätes aufsetzbar.

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