Disk support device
    2.
    发明授权
    Disk support device 失效
    磁盘支持设备

    公开(公告)号:US4669008A

    公开(公告)日:1987-05-26

    申请号:US690464

    申请日:1985-01-10

    申请人: Akira Ichihara

    发明人: Akira Ichihara

    CPC分类号: G11B17/0282

    摘要: A disk support device for supporting a disk having a central hub having a central support hole and a support hole includes a rotatable drive shaft, a turntable fixedly mounted on the rotatable drive shaft and having a hole for supporting the disk on one surface thereof with the rotatable drive shaft inserted in the central support hole in the disk, and a leaf spring having one end fixed to an opposite surface of the turntable and supporting a positioning pin remotely from the one end thereof, the positioning pin projecting under the resiliency of the leaf spring through the hole in the turntable for engagement in the support hole in the disk, the leaf spring having a locking finger held in engagement with the turntable.

    摘要翻译: 一种盘支撑装置,用于支撑具有中央支撑孔和支撑孔的盘的盘,包括可旋转驱动轴,固定地安装在可旋转驱动轴上的转台,并具有用于在其一个表面上支撑盘的孔, 插入在盘的中心支撑孔中的可旋转驱动轴,以及一个板簧,其一端固定在转盘的相对表面上并远离其一端支撑定位销,定位销在叶片的弹性下突出 弹簧穿过转盘中的孔,以接合在盘的支撑孔中,板簧具有与转盘保持接合的锁定指状物。

    Speed control apparatus for motor
    4.
    发明授权
    Speed control apparatus for motor 失效
    电机调速装置

    公开(公告)号:US4845412A

    公开(公告)日:1989-07-04

    申请号:US118848

    申请日:1987-11-09

    申请人: Akira Ichihara

    发明人: Akira Ichihara

    IPC分类号: H02P6/20

    摘要: In a motor speed controll apparatus for a DC motor, there are provided a frequency signal generating circuit for outputting a signal at a time period corresponding to a rotation speed of a motor, a sawtooth wave output circuit for outputting a sawtooth wave, the voltage of which increases in a constant time-constant at said time period, a holding circuit for holding a substantially peak voltage of said sawtooth wave as a signal voltage corresponding to the rotation speed of the motor, a differential amplifier circuit for comparing said signal voltage with a speed setting voltage and for outputting a speed control signal in accordance with a difference in this comparison, said speed control signal being supplied to a motor drive apparatus, an amplifier circuit interposed between the output of said holding circuit and input of said differential amplifier circuit, and an operation control circuit for controlling said amplifier circuit to an operative mode and a non-operative mode selectively, the motor being driven by switching said amplifier circuit into the operative mode by means of said operation control circuit.

    摘要翻译: 在直流电动机的电动机速度控制装置中,设置有频率信号发生电路,用于在与电动机的转速对应的时间段输出信号,输出锯齿波的锯齿波输出电路, 在所述时间段内增加恒定时间常数的保持电路,用于将所述锯齿波的大致峰值电压保持为与电动机的转速相对应的信号电压的保持电路,用于将所述信号电压与 速度设定电压,并且根据该比较的差异输出速度控制信号,所述速度控制信号被提供给电动机驱动装置,放置在所述保持电路的输出和所述差分放大电路的输入端之间的放大器电路, 以及用于将所述放大器电路控制到操作模式和非操作模式选择的操作控制电路 因此,通过所述操作控制电路将所述放大器电路切换到操作模式来驱动电动机。

    Disk support device having deformation limiting member
    5.
    发明授权
    Disk support device having deformation limiting member 失效
    具有变形限制构件的盘支撑装置

    公开(公告)号:US4649444A

    公开(公告)日:1987-03-10

    申请号:US692289

    申请日:1985-01-16

    申请人: Akira Ichihara

    发明人: Akira Ichihara

    CPC分类号: G11B17/0282

    摘要: A disk support device for supporting a disk having a central hub, a central support hole and a rotatable drive shaft, a turntable fixedly mounted on the rotatable drive shaft and having a hole for supporting the disk on one surface thereof with the rotatable drive shaft inserted in the central support hole in the disk, a leaf spring having one end fixed to an opposite surface of the turntable and supporting a positioning pin remotely from the one end thereof, the positioning pin projecting under the resiliency of the leaf spring through the hole in the turntable for engagement in the support hole in the disk, and a stopper fixed to the opposite surface of the turntable in spaced relation thereto, the leaf spring being interposed between the opposite surface of the turntable and the stopper for being subjected to a limited extent of deformation.

    摘要翻译: 一种用于支撑具有中心毂,中心支撑孔和可旋转驱动轴的盘的盘支撑装置,固定地安装在可旋转驱动轴上的转盘,具有用于在其一个表面上支撑盘的孔,其中可转动的驱动轴被插入 在盘的中央支撑孔中具有一个板簧,其一端固定在转盘的相对表面上,并且远离其一端支撑定位销,定位销在弹簧的弹性下通过该孔突出 用于接合在盘中的支撑孔中的转台以及与转台相对的相对表面固定的止动件,该片簧介于转盘的相对表面和止动器之间,用于受限制 的变形。

    Disk chucking device
    6.
    发明授权
    Disk chucking device 失效
    磁盘夹紧装置

    公开(公告)号:US5151836A

    公开(公告)日:1992-09-29

    申请号:US672813

    申请日:1991-03-21

    申请人: Akira Ichihara

    发明人: Akira Ichihara

    IPC分类号: G11B17/028

    CPC分类号: G11B17/0282 G11B17/028

    摘要: A chucking device, in which a 31/2" flexible disk is centered and driven so as to rotate, is improved. A driving pin is disposed on one end of a plate spring and the other end portion is elastically energized to be brought into contact with a plurality of holding pins disposed on a turn table so as to protrude therefrom. At the chucking, since the plate spring is separated from the holding pins, sliding resistance, wear, etc. are not produced. For this reason, even if the chucking is repeated over many years, a high centering precision can be sustained.

    摘要翻译: 其中31/2“软盘被居中并被驱动以便旋转的夹持装置被改进。 驱动销设置在板簧的一端,另一端部弹性地通电以与设置在转台上的多个保持销接触从而从其突出。 在夹紧时,由于板簧与保持销分离,因此不会产生滑动阻力,磨损等。 因此,即使夹持重复多年,也能够维持高的定心精度。