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1. 发明授权

US5303223A Head carriage apparatus moved by a lead-screw shaft including resilient means for pressing the lead-screw shaft in a slanting direction toward the head carriage 失效
标题翻译：头托架装置由丝杠轴移动，该导螺杆轴包括弹性装置，用于沿着倾斜方向将导螺杆轴向头托架
公开(公告)号：US5303223A
公开(公告)日：1994-04-12
申请号：US802146
申请日：1991-12-03
申请人： Takahiro Sakaguchi , Daihachiro Takasu , Yasuhiko Ando , Kazuo Yokota , Hiroshi Tsuyuguchi
发明人： Takahiro Sakaguchi , Daihachiro Takasu , Yasuhiko Ando , Kazuo Yokota , Hiroshi Tsuyuguchi
IPC分类号： G11B21/02 , G11B21/08 , G11B5/55
CPC分类号： G11B21/083
摘要： A head carriage apparatus includes a head carriage including a head being placed onto a disk for recording and reproducing information on the disk and having an extension and a connecting portion formed on the extension integrally with the head carriage, a lead-screw shaft having a lead screw in which a thread ridge and a thread groove are formed, the connecting portion being fitted in the thread groove of the lead screw, a drive part for driving and rotating the lead-screw shaft so that the head carriage is moved in a radial direction of the disk parallel to an axial direction of the lead-screw shaft, a guide shaft for guiding movement of the head carriage in a direction parallel to the radial direction of the disk, the head carriage being supported by the guide shaft at two supporting positions being located apart from each other in axial direction of the guide shaft, and a resilient part for pressing the lead-screw shaft in a direction facing the head carriage, the resilient part being fixed at one end onto the head carriage, the other end of the resilient part being brought into contact with the lead-screw shaft at a position corresponding with respect to the axial direction of the lead-screw shaft to a position at which the connecting portion is fitted in the thread groove of the lead-screw shaft. One of the two supporting points of the guide shaft is displaced to a forwardly moved point in order to downsize a disk drive unit in which the head carriage apparatus is accommodated.
摘要翻译：头托架装置包括头托架，其包括头部，该头托架放置在盘上用于在盘上记录和再现信息，并且具有与头托架一体形成在延伸部上的连接部分和连接部分，具有引线的导螺杆轴螺纹，其中形成有螺纹脊和螺纹槽，连接部分装配在丝杠的螺纹槽中，驱动部分用于驱动和旋转丝杠轴，使得头托架沿径向移动所述导向轴用于引导所述头托架沿与所述盘的径向平行的方向的运动，所述头托架由所述引导轴支撑在两个支撑位置处，在引导轴的轴向方向上彼此分离，以及用于沿着与头部托架相对的方向按压丝杠轴的弹性部分，弹性部分在一端固定在头架上，弹性部分的另一端在与丝杠轴的轴向相对应的位置处与丝杠轴接触，到达连接部分安装在丝杠轴的螺纹槽中。引导轴的两个支撑点中的一个被移动到向前移动的点，以便小型化容纳头部托架装置的盘驱动单元。

2. 发明授权

US4774611A Rotary to linear converter for use in a magnetic disk drive or the like 失效
标题翻译：用于磁盘驱动器等的旋转到线性转换器
公开(公告)号：US4774611A
公开(公告)日：1988-09-27
申请号：US35377
申请日：1987-04-06
申请人： Yasuhiko Ando
发明人： Yasuhiko Ando
IPC分类号： G11B21/02 , F16H19/00 , G11B21/08 , H02K7/06 , G11B5/56
CPC分类号： H02K7/06 , F16H19/0622 , G11B21/08 , Y10T74/18832
摘要： A rotary to linear converter is disclosed as adapted for use as a transducer positioning mechanism in a magnetic disk drive wherein a transducer is transported across a series of concentric data storage tracks on a disklike record medium for accessing the individual tracks. A band of flexible, nonstretchable material such as stainless steel is looped about a pulley on a bidirectional drive motor shaft, with the opposite end portions of the band extending tangentially away from the pulley. The opposite ends of the band are anchored to a carriage, carrying the transducer, at points spaced from each other in the direction in which the carriage is to be moved reciprocably upon bidirectional rotation of the drive motor. While one end of the band may be coupled directly to the carriage, the other end is coupled thereto via a generally U-shaped spring member which is biased for imparting tension to the band at the time of assemblage. The band is medially secured to the pulley as by a threaded fastener element extending through a clearance hole in the band.
摘要翻译：公开了一种旋转到线性转换器，其适用于在磁盘驱动器中用作换能器定位机构，其中换能器被传送到盘状记录介质上的一系列同心数据存储轨道，用于访问各个轨道。柔性的，不可拉伸的材料（例如不锈钢）的带围绕双向驱动马达轴上的滑轮环绕，带的相对端部相切地远离皮带轮延伸。带的相对端被固定到托架上，承载传感器，在沿着驱动马达的双向旋转时滑架能够往复运动的方向上彼此分开的点处。虽然带的一端可以直接连接到托架，但是另一端通过大体上U形的弹簧构件连接到该弹簧构件，弹簧构件被偏置以在组装时向带施加张力。带子通过延伸穿过带中的间隙孔的螺纹紧固件中间固定到滑轮。

3. 发明授权

US4697467A Rotary to linear converter for use in a flexible magnetic disk drive or the like 失效
标题翻译：用于柔性磁盘驱动器等的旋转到线性转换器
公开(公告)号：US4697467A
公开(公告)日：1987-10-06
申请号：US839440
申请日：1986-03-13
申请人： Yasuhiko Ando
发明人： Yasuhiko Ando
IPC分类号： G11B21/02 , F16H19/00 , G11B5/55 , G11B21/08 , F16H21/44 , G11B5/56
CPC分类号： G11B5/55 , F16H19/0622 , G11B21/08 , Y10T74/18832 , Y10T74/18848
摘要： A rotary to linear converter is disclosed in a flexible magnetic disk drive environment for translating the bidirectional, incremental rotation of a stepping motor into the linear stepwise displacement of a head carriage. A flexible, nonstretchable band is looped about a pulley nonrotatably mounted on the motor output shaft and is affixed thereto. Extending generally in opposite directions away from the pulley, the opposite ends of the band are apertured or otherwise adapted for engagement with respective hooks on the head carriage. Each hook has a substantially arcuate contact surface for direct engagement with the correspondingly shaped edge of the band defining the associated aperture, so that each end portion of the band is angularly displaceable in its own plate about the associated hook on the head carriage. Spring tensioned in its longitudinal, the band automatically aligns itself by simple engagement of the carriage hooks with its opposite ends. The hooks have overhangs for preventing the accidental detachment of the band.
摘要翻译：旋转到线性转换器在柔性磁盘驱动环境中公开，用于将步进电机的双向增量旋转转换成磁头滑架的线性逐步位移。柔性的，不可拉伸的带围绕不可旋转地安装在电动机输出轴上的皮带环绕并固定在其上。通常沿与皮带轮相反的方向延伸，带的相对端有孔或适于与头托架上的相应钩接合。每个钩具有基本上弓形的接触表面，用于与形成相关联的孔的带的相应形状的边缘直接接合，使得带的每个端部在其自身板中围绕头部托架上的相关联的钩角位移。弹簧在其纵向上张紧，通过滑架钩与其相对端的简单接合，带自动对准自身。钩子具有突出端以防止带的意外脱离。

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