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10 条记录 (耗时 0.012 秒)

    Disk cartridge
    1.
    发明公开
    Disk cartridge 失效

    公开(公告)号：EP0336637A3

    公开(公告)日：1990-08-01

    申请号：EP89303107.0

    申请日：1989-03-29

    申请人： Hitachi Maxell Ltd.

    发明人： Tanaka, Yoshito ,  Sonobe, Takeo

    IPC分类号： G11B23/03

    CPC分类号： G11B23/28 ,  G11B23/0303 ,  G11B23/0308

    摘要： A disk cartridge accommodating a disk-type recording medium (1c) and adapted to be used on a recording/read-out apparatus having at least an upper head and a lower head for making access to the upper and lower surfaces of the disk. The disk cartridge comprises an upper case member (1a) and a lower case member (1b) which are assembled together to form a case defining therein an internal space for accommodating the disk. Head windows (2a, 2b) formed in the upper and lower case members such as to oppose to each other so as to allow the heads to make access to the disk therethrough, the head windows extending in a predetermined radial direction of the disk. A recess formed by recessing the surface of each case member at a region extending between one longitudinal end of the head window and the edge of the case member closest to the longitudinal end of the head window. A shutter (3) capable of sliding on the case in the widthwise direction of the head windows so as to open/close the recesses and the head windows. The head window formed in the upper case member and the head window formed in the lower case member has different widths. This disk cartridge enables the shutter to be stably supported on the case, and reduces the risk for the disk to be contaminated by foreign matters.

    Disc drive apparatus
    3.
    发明公开
    Disc drive apparatus 失效
    Plattenantriebsgerät。

    公开(公告)号：EP0407140A2

    公开(公告)日：1991-01-09

    申请号：EP90307256.9

    申请日：1990-07-03

    申请人： Hitachi Maxell Ltd.

    发明人： Tanaka, Yoshito ,  Sugiyama, Toshinori ,  Tsuburaya, Yoshitane

    IPC分类号： G11B17/04 ,  G11B23/03

    CPC分类号： G11B17/0436 ,  G11B23/0308

    摘要： A disc drive apparatus is disclosed which includes a cartridge holder (3) for detachably holding a disc cartridge provided with a shutter slidingly moving in one direction from a closed position to open windows formed in an upper surface and a lower surface of a cartridge case and opening/closing arms (4,5) rotatably mounted on the cartridge holder for moving the shutter in an opening direction by an insertion force of the disc cartridge into the cartridge holder. A proximal end portion of a first opening/closing arm for moving the shutter in the opening direction when the disc cartridge is inserted relative to the cartridge holder with a first surface thereof facing upwardly and a proximal end portion of a second opening/closing arm for moving the shutter in the opening direction when the disc cartridge is inserted relative to the cartridge holder with a second surface thereof facing upwardly are rotatably mounted at a predetermined interval on a disc cartridge insertion opening side of a ceiling plate forming the cartridge holder. The two opening/closing arms cross each other with their distal end portions being disposed in a rearward direction of the cartridge holder. Pins provided at the distal end portions of the respective opening/closing arms for driving the shutter are disposed outside of the closed position of the shutter within the cartridge holder.

    摘要翻译： 公开了一种盘驱动装置，该盘驱动装置包括用于可拆卸地保持盘盒的盒保持器（3），该盘盒设置有从关闭位置沿一个方向滑动地移动的开闭器，以打开形成在盒壳体的上表面和下表面中的窗口， 可旋转地安装在盒保持器上的打开/关闭臂（4,5），用于通过盘盒进入盒保持器的打开方向使挡板移动。 第一打开/关闭臂的近端部分，用于当盘盒相对于盒保持器插入时朝向打开方向移动挡板，其第一表面朝上，第二开/关臂的近端部分 当盘盒相对于盒保持器插入时，使盘沿打开方向移动，其第二表面面向上，以预定的间隔可旋转地安装在形成盒保持器的顶板的盘盒插入开口侧。 两个打开/关闭臂彼此交叉，其远端部分沿盒保持器的向后方向设置。 设置在用于驱动快门的相应的开/关臂的远端部分处的引脚设置在盒保持器内的快门的关闭位置的外部。

    Disk cartridge
    4.
    发明公开
    Disk cartridge 失效
    磁盘盒

    公开(公告)号：EP0336637A2

    公开(公告)日：1989-10-11

    申请号：EP89303107.0

    申请日：1989-03-29

    申请人： Hitachi Maxell Ltd.

    发明人： Tanaka, Yoshito ,  Sonobe, Takeo

    IPC分类号： G11B23/03

    CPC分类号： G11B23/28 ,  G11B23/0303 ,  G11B23/0308

    摘要： A disk cartridge accommodating a disk-type recording medium (1c) and adapted to be used on a recording/read-out apparatus having at least an upper head and a lower head for making access to the upper and lower surfaces of the disk. The disk cartridge comprises an upper case member (1a) and a lower case member (1b) which are assembled together to form a case defining therein an internal space for accommodating the disk. Head windows (2a, 2b) formed in the upper and lower case members such as to oppose to each other so as to allow the heads to make access to the disk therethrough, the head windows extending in a predetermined radial direction of the disk. A recess formed by recessing the surface of each case member at a region extending between one longitudinal end of the head window and the edge of the case member closest to the longitudinal end of the head window. A shutter (3) capable of sliding on the case in the widthwise direction of the head windows so as to open/close the recesses and the head windows. The head window formed in the upper case member and the head window formed in the lower case member has different widths. This disk cartridge enables the shutter to be stably supported on the case, and reduces the risk for the disk to be contaminated by foreign matters.

    摘要翻译： 一种容纳盘式记录介质（1c）的磁盘盒，适用于具有至少一个上磁头和一个下磁头的记录/读出装置，以便接近磁盘的上下表面。 盘盒包括装配在一起的上壳体部件（1a）和下壳体部件（1b），以形成在其中限定用于容纳盘的内部空间的壳体。 在上，下壳体部件中形成的头部窗口（2a，2b）彼此相对，以便允许头部通过其进入盘，头部窗口沿盘的预定径向延伸。 通过使每个壳体构件的表面在顶窗的一个纵向端部和壳体构件的最靠近顶窗的纵向端部的边缘之间延伸的区域凹陷而形成凹部。 一个活门（3），它能够沿着头窗的宽度方向在壳体上滑动，从而打开/关闭凹口和头窗。 形成在上壳体构件中的头窗和形成在下壳体构件中的头窗具有不同的宽度。 这种磁盘盒能够使快门稳定地支撑在盒子上，并且降低了磁盘被异物污染的风险。

    Method of producing optical disk, jig for carrying out the method, and optical disk produced by the method
    7.
    发明公开
    Method of producing optical disk, jig for carrying out the method, and optical disk produced by the method 失效
    一种用于制造光盘，教学用于执行该方法和由该方法的光盘制造方法。

    公开(公告)号：EP0386971A1

    公开(公告)日：1990-09-12

    申请号：EP90302296.0

    申请日：1990-03-05

    申请人： Hitachi Maxell Ltd.

    发明人： Sugiyama, Toshinori ,  Kanazawa, Yasunori ,  Sonobe, Takeo ,  Tanaka, Yoshito ,  Fukutake, Sunao ,  Miura, Makoto

    IPC分类号： G11B7/26 ,  G11B7/24

    CPC分类号： G11B23/0035 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/26

    摘要： According to a method of producing an optical disk, comprising the steps of providing a jig having a cylindrical portion and a center pin formed on said cylindrical portion coaxially therewith; providing a transparent substrate having a reference hole formed therein at its central portion and disposed coaxially with an imaginary center of beam-tracking tracks, on the substrate, constituted by preformed pits and projections which tracks are spaced at predetermined intervals radially outwardly of the reference hole; fitting said cylindrical portion of the jig into the reference hole in the transparent substrate; and inserting the center pin of said jig into a spindle hole, formed in a spindle hole-containing member, against movement relative to the spindle hole, and subsequently securing the spindle hole-containing member to a central portion of the transparent substrate while keeping the relative posi­tion thereof the spindle hole being smaller in diameter than the reference hole in the transparent substrate, concentricity of the reference hole and the spindle hole can be easily attained.

    摘要翻译： 。根据在光盘制造方法，包括：提供具有一个圆柱形部分和形成在所述筒状部同轴那里与中心销的夹具的步骤的方法; 提供具有基准孔在其中央部形成于其中并与波束跟踪轨道的假想中心孔同轴设置，在基片上，通过预先形成的凹坑和凸起，所述凸起的轨道以预定的间隔的基准的间隔径向向外构成的透明基板 ; 所述夹具的成在透明基板的基准孔嵌合筒部; 和插入所述夹具的中心销插入一轴孔，孔中形成的主轴不能相对移动构件到主轴上，并且随后将主轴含孔构件固定到所述透明基板的中央部，同时保持含有空穴 其主轴孔的直径大于在所述透明基板的基准孔较小的相对位置，所述基准和主轴孔的孔同心，可以容易地实现。

    A disc cartridge
    8.
    发明公开
    A disc cartridge 失效
    光盘盒

    公开(公告)号：EP0684609A2

    公开(公告)日：1995-11-29

    申请号：EP95109183.4

    申请日：1990-07-03

    申请人： Hitachi Maxell Ltd.

    发明人： Tanaka, Yoshito ,  Sugiyama, Toshinori ,  Tsuburaya, Yoshitane

    IPC分类号： G11B23/03 ,  G11B17/04

    CPC分类号： G11B17/0436 ,  G11B23/0308

    摘要： A disk cartridge for double sided magnetic optical and magneto-optical recording medium. The cartridge case has a reinforcement portion along the edge of the head insertion window of reduced thickness. The shutter is mounted on a slider which has a rear portion at each end for engaging guide means either side of the reinforcement portion.

    摘要翻译： 一种用于双面磁光盘和磁光盘记录介质的盘盒。 盒壳体具有沿厚度减小的头部插入窗口的边缘的加强部分。 该闸门安装在滑块上，该滑块在每个端部具有后部，用于接合加强部分任一侧的导向装置。

    Disc drive apparatus
    10.
    发明公开
    Disc drive apparatus 失效
    DISC驱动装置

    公开(公告)号：EP0407140A3

    公开(公告)日：1992-03-04

    申请号：EP90307256.9

    申请日：1990-07-03

    申请人： Hitachi Maxell Ltd.

    发明人： Tanaka, Yoshito ,  Sugiyama, Toshinori ,  Tsuburaya, Yoshitane

    IPC分类号： G11B17/04 ,  G11B23/03

    CPC分类号： G11B17/0436 ,  G11B23/0308

    摘要： A disc drive apparatus is disclosed which includes a cartridge holder (3) for detachably holding a disc cartridge provided with a shutter slidingly moving in one direction from a closed position to open windows formed in an upper surface and a lower surface of a cartridge case and opening/closing arms (4,5) rotatably mounted on the cartridge holder for moving the shutter in an opening direction by an insertion force of the disc cartridge into the cartridge holder. A proximal end portion of a first opening/closing arm for moving the shutter in the opening direction when the disc cartridge is inserted relative to the cartridge holder with a first surface thereof facing upwardly and a proximal end portion of a second opening/closing arm for moving the shutter in the opening direction when the disc cartridge is inserted relative to the cartridge holder with a second surface thereof facing upwardly are rotatably mounted at a predetermined interval on a disc cartridge insertion opening side of a ceiling plate forming the cartridge holder. The two opening/closing arms cross each other with their distal end portions being disposed in a rearward direction of the cartridge holder. Pins provided at the distal end portions of the respective opening/closing arms for driving the shutter are disposed outside of the closed position of the shutter within the cartridge holder.