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公开(公告)号：US5109308A
公开(公告)日：1992-04-28
申请号：US342985
申请日：1989-04-25
IPC分类号： G11B15/18 , G11B15/675
CPC分类号： G11B15/1883 , G11B15/67523
摘要： The present invention is an end loaded tape drive for an elongate tape cartridge having a door in one of its sides proximate one end of the cartridge. The tape drive includes an elongate table mounted at least partially within an elongate housing upon which the cartridge may rest. The table is movable in an x-y plane defined by an x axis and a y axis. The drive includes a magnetic head which is fixed against movement in an x-y plane. A cartridge door opening mechanism is provided for opening the access door of the cartridge sufficiently to provide access to the tape by the magnetic head. Movement of the table in the y direction actuates the door opening mechanism and movement of the table in the x direction positions the tape in a read/write position. A motor is further provided for moving the length of tape within the cartridge along the magnetic head when the tape is in the read/write position.
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公开(公告)号：US4747004A
公开(公告)日：1988-05-24
申请号：US849146
申请日：1986-04-07
摘要： A magnetic read/write head is mounted on a carriage having a semi-circular recess therein. A threaded lead screw is partially surrounded by the recess. A partial nut having an arcuate front surface with two male thread segments thereon engages the lead screw. The partial nut is supported on the carriage so that rotation of the screw causes movement of the carriage relative to the screw, in a direction parallel to the longitudinal axis of the screw. The partial nut is biased into engagement with the screw by a coil spring which extends between the partial nut and a cap which is spaced from the rear surface of the partial nut. The spring applies a constant, predetermined force on the partial nut. The direction of the spring force is substantially parallel to the longitudinal axis of the spring. Thus, the head can be precisely positioned by the rotation of the lead screw. Also disclosed is a method of positioning the magnetic head.
摘要翻译： 磁读/写头安装在其中具有半圆形凹槽的托架上。 螺纹导螺杆被凹部部分地包围。 具有弓形前表面的具有两个外螺纹段的部分螺母与导螺杆啮合。 部分螺母被支撑在滑架上，使得螺杆的旋转引起滑架相对于螺钉在平行于螺杆的纵向轴线的方向上的移动。 部分螺母通过螺旋弹簧偏置成与螺钉接合，该螺旋弹簧在部分螺母和与该部分螺母的后表面间隔开的盖子之间延伸。 弹簧在局部螺母上施加恒定的预定力。 弹簧力的方向基本上平行于弹簧的纵向轴线。 因此，可以通过导螺杆的旋转来精确地定位头部。 还公开了一种定位磁头的方法。
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3.发明授权
公开(公告)号：US5237469A
公开(公告)日：1993-08-17
申请号：US771139
申请日：1991-10-03
IPC分类号： G11B15/18 , G11B15/675
CPC分类号： G11B15/1883 , G11B15/67523
摘要： The present invention is an end loaded tape drive for an elongate tape cartridge having a door in one of its sides proximate one end of the cartridge. The tape drive includes an elongate table mounted at least partially within an elongate housing upon which the cartridge may rest. The table is movable in an x-y plane defined by an x axis and a y axis. The drive includes a magnetic head which is fixed against movement in an x-y plane. A cartridge door opening mechanism is provided for opening the access door of the cartridge sufficiently to provide access to the tape by the magnetic head. Movement of the table in the y direction actuates the door opening mechanism and movement of the table in the x direction positions the tape in a read/write position. A motor is further provided for moving the length of tape within the cartridge along the magnetic head when the tape is in the read/write position.
摘要翻译： 本发明是一种用于细长带盒的端部装载的磁带驱动器，其具有靠近盒的一端的其一侧的门。 带驱动器包括细长台，其至少部分地安装在细长壳体内，盒可以放置在其上。 该台可以在由x轴和y轴限定的x-y平面内移动。 该驱动器包括一个固定在x-y平面上的运动的磁头。 提供盒式打开机构用于充分地打开盒的进入门，以提供磁头对磁带的访问。 桌子在y方向上的移动启动门打开机构，并且桌子在x方向上的移动将带子定位在读/写位置。 进一步设置电动机，用于当磁带处于读取/写入位置时沿着磁头移动磁带盒内的磁带的长度。
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公开(公告)号：US4146912A
公开(公告)日：1979-03-27
申请号：US823973
申请日：1977-08-12
申请人： Jagmohan S. Kukreja
发明人： Jagmohan S. Kukreja
IPC分类号： G11B17/03 , G11B17/032 , G11B5/82 , G11B25/04
CPC分类号： G11B17/032
摘要： An interlock mechanism in a flexible disk drive unit to protect the disk against damage by the disk engagement assembly. The mechanism operates to block the engagement assembly from moving into a position of engaging the disk when the disk is not fully inserted in the drive.
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5.发明授权
公开(公告)号：US5311390A
公开(公告)日：1994-05-10
申请号：US794999
申请日：1991-11-15
摘要： The invention provides a device to facilitate precise positioning of a tape head at a particular track on a magnetic tape. Typically, the magnetic tape is adapted to be received in a drive assembly which has a memory and a motor. The device includes a mounting tray for receiving the tape drive assembly, and a laser beam emitted from a laser source. On the tape head of the device, a reflector is positioned and moves with the tape head. Beam directors are provided to ensure that the laser beam passes from the laser source to the reflector. The distance traveled by the tape head from a predetermined point to a position adjacent a track on the magnetic tape is accurately measured, and the extent of movement of the motor required to move the tape head through such a distance is also measured. Thereafter, the measurements are programmed into the tape drive assembly memory.
摘要翻译： 本发明提供一种便于在磁带上的特定轨道上精确定位磁带头的装置。 通常，磁带适于被接收在具有存储器和电动机的驱动组件中。 该装置包括用于接收磁带驱动组件的安装托盘和从激光源发射的激光束。 在设备的磁带头上，反射器被定位并随磁带头一起移动。 光束导向器用于确保激光束从激光源传递到反射器。 磁带头从预定点移动到与磁带上的轨道相邻的位置的距离被精确地测量，并且还测量了使磁带头移动这样的距离所需的电动机的移动程度。 此后，将测量值编程到磁带驱动器组件存储器中。
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6.发明授权Apparatus for shifting the magnetic read/write head carriage in a floppy disk drive unit 失效用于将磁读/写磁头托架移动到软盘驱动单元中的装置
公开(公告)号：US4315290A
公开(公告)日：1982-02-09
申请号：US111226
申请日：1980-01-11
申请人： Jagmohan S. Kukreja
发明人： Jagmohan S. Kukreja
CPC分类号： G11B5/5521
摘要： A floppy disk magnetic information storage and retrieval unit having a magnetic read/write head carriage and apparatus for shifting the carriage radially with respect to the floppy disk to effect data transfer with selectable tracks on the disk. The carriage shifting apparatus includes a lead screw shaft; a carriage nut arranged on the shaft and moveable axially when the shaft is rotated; and a stepper motor having a permanent magnet rotor arranged coaxially with, and rigidly attached to one end of the shaft. Two bearings are provided to hold the shaft and rotor combination at opposite ends of the shaft.
摘要翻译： 具有磁读/写磁头托架的软盘磁信息存储和检索单元和用于相对于软盘径向移动滑架的装置，以利用磁盘上的可选轨道进行数据传送。 滑架换档装置包括导螺杆轴; 布置在轴上的托架螺母，当轴旋转时可以轴向移动; 以及具有与所述轴的一端同轴并且刚性地附接到所述轴的永久磁铁转子的步进电动机。 提供两个轴承以将轴和转子组合保持在轴的相对端。
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公开(公告)号：US5198947A
公开(公告)日：1993-03-30
申请号：US546025
申请日：1990-06-29
摘要： Apparatus for orienting a magnetic tape head and a tape drive assembly has a frame with a support, and a shaft mounted for rotation around its axis on the support. The first end of the shaft is pivotally mounted on the support, while the second end, also mounted on the support, is movable relative thereof. A motor is provided for rotating the shaft. A head carriage assembly with a magnetic tape head is mounted on the shaft and positioned so that the head lies adjacent magnetic tape which is located in the tape drive assembly. The head carriage assembly moves up and down the shaft when the shaft rotates, and thereby causes upward and downward movement of the head. The apparatus includes an adjuster for adjusting the orientation of the shaft and head carriage assembly. Further, a laser source, reflectors and accurate measuring instruments are provided for accurately setting the tape head to facilitate accurate location of a track on a magnetic tape.
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