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公开(公告)号：US4553227A
公开(公告)日：1985-11-12
申请号：US485459
申请日：1983-04-15
CPC分类号： G11B7/0932
摘要： An optical pickup assembly has a lens assembly movably supported in a magnetic gap of a yoke by flexible supporting members. Magnetic interaction between elements of the lens assembly and the yoke help center the lens assembly in the magnetic gap. Electromagnets move the lens assembly from the centered position. A light source, a collimator lens and a polarizing beam splitter are fixed with respect to the yoke.
摘要翻译： 光学拾取器组件具有通过柔性支撑构件可移动地支撑在磁轭的磁隙中的透镜组件。 透镜组件和轭的元件之间的磁相互作用有助于将透镜组件置于磁隙中。 电磁铁将镜头组件从中心位置移动。 光源，准直透镜和偏振光束分离器相对于磁轭固定。
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公开(公告)号：US4409887A
公开(公告)日：1983-10-18
申请号：US283550
申请日：1981-07-15
申请人： Shitta Shingu , Atsushi Takahashi , Isao Kosugi
发明人： Shitta Shingu , Atsushi Takahashi , Isao Kosugi
IPC分类号： B66B1/26 , B66B9/04 , F15B11/00 , F15B11/048 , F15B11/04 , F15B13/042
CPC分类号： F15B11/048 , F15B2211/20538 , F15B2211/30505 , F15B2211/3056 , F15B2211/3111 , F15B2211/3116 , F15B2211/31529 , F15B2211/31558 , F15B2211/327 , F15B2211/351 , F15B2211/353 , F15B2211/45 , F15B2211/7052 , F15B2211/755 , Y10S91/02
摘要： In a hydraulic apparatus, an operating oil delivered from a fixed delivery hydraulic pump is divided into two parts, one of which is discharged into an oil tank by passing through a serial circuit consisting of a normally open valve and an orifice and the other of which is supplied to a piston-cylinder means by passing through a parallel circuit consisting of a normally closed valve and a check valve. When the normally closed valve is closed and the normally open valve is gradually closed, the piston is raised while gradually increasing in velocity. On the other hand, when the normally open valve is totally opened to stop the piston and the normally closed valve is gradually opened, the piston is lowered while gradually increasing in velocity. When the valves are operated to cause the piston to move vertically, the impact applied thereto at the time when the valve opening is large is largely mitigated by using said orifice.
摘要翻译： 在液压装置中，从固定输送液压泵输送的工作油被分成两部分，其中一个通过通过由常开阀和孔组成的串联回路而排放到油箱中，另一个 通过通过由常闭阀和止回阀组成的并联回路供给到活塞缸装置。 当常闭阀关闭并且常开阀逐渐关闭时，活塞在速度逐渐增加的同时升高。 另一方面，当常开阀完全打开以停止活塞并且常闭阀逐渐打开时，活塞在速度逐渐增加的同时降低。 当阀被操作以使活塞垂直移动时，通过使用所述孔大大减轻了在阀开启时施加到其上的冲击。
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公开(公告)号：US4318332A
公开(公告)日：1982-03-09
申请号：US45869
申请日：1979-06-06
申请人： Shitta Shingu , Atsushi Takahashi , Isao Kosugi
发明人： Shitta Shingu , Atsushi Takahashi , Isao Kosugi
IPC分类号： B66B1/26 , B66B9/04 , F15B11/00 , F15B11/048 , F15B11/08 , F15B13/042
CPC分类号： F15B11/048 , F15B2211/20538 , F15B2211/30505 , F15B2211/3056 , F15B2211/3111 , F15B2211/3116 , F15B2211/31529 , F15B2211/31558 , F15B2211/327 , F15B2211/351 , F15B2211/353 , F15B2211/45 , F15B2211/7052 , F15B2211/755 , Y10S91/02
摘要： In a hydraulic apparatus, operating oil delivered from a fixed delivery hydraulic pump is divided into two parts, one end of which is discharged into an oil tank by passing through a serial circuit of a normally open valve and an orifice and the other end of which is supplied to a piston-cylinder mechanism by passing through a parallel circuit of a normally closed valve and a check valve. When the normally closed valve is closed and the normally open valve is gradually closed, the piston is raised while gradually increasing in velocity. On the other hand, when the normally open valve is totally opened to stop the piston and the normally closed valve is gradually opened, the piston is lowered while gradually increasing in velocity. When the valves are operated to cause the piston to move vertically, the impact applied thereto at the time when the valve opening is large is largely mitigated by using the orifice.
摘要翻译： 在液压装置中，从固定输送液压泵输送的操作油被分成两部分，其一端通过常开阀和孔口的串联回路排放到油箱中，另一端 通过常闭阀和止回阀的并联回路供给到活塞缸机构。 当常闭阀关闭并且常开阀逐渐关闭时，活塞升高而速度逐渐增加。 另一方面，当常开阀完全打开以停止活塞并且常闭阀逐渐打开时，活塞在速度逐渐增加的同时降低。 当阀被操作以使活塞垂直移动时，通过使用孔口大大减轻了阀开启时施加到其上的冲击。
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公开(公告)号：US5287031A
公开(公告)日：1994-02-15
申请号：US935874
申请日：1992-08-26
CPC分类号： F16C29/00 , F16C32/0444 , F16C32/0472 , G02B7/1821 , G12B3/08
摘要： A movable member is situated within a cylindrical member so as to be axially movable The movable member is supported by a magnetic bearing device in relation to the cylindrical member in a perfect non-contact manner. The cylindrical member and movable member are provided with an electromagnetic force generating mechanism for selectively applying an axial driving force to the movable member in a non-contact manner. The movable member is provided with an auxiliary plate having an inclined surface inclined with respect to the axis of the movable member. The axial position of the movable member is detected by the output of a detector which detects the distance between itself and the inclined surface. On the basis of the detected axial position and an objective position, the electromagnetic force generating mechanism is activated to set the axial position of the movable member.
摘要翻译： 可移动部件位于圆筒形部件内以便可轴向移动。可移动部件以完全非接触的方式相对于圆柱形部件由磁性轴承装置支撑。 圆柱形构件和可动构件设置有用于以非接触方式选择性地向可动构件施加轴向驱动力的电磁力产生机构。 可动构件设置有具有相对于可动构件的轴线倾斜的倾斜表面的辅助板。 通过检测其自身与倾斜面之间的距离的检测器的输出来检测可动件的轴向位置。 基于检测到的轴向位置和目标位置，电磁力产生机构被启动以设定可动构件的轴向位置。
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公开(公告)号：US4623202A
公开(公告)日：1986-11-18
申请号：US736858
申请日：1985-05-22
申请人： Shitta Shingu
发明人： Shitta Shingu
CPC分类号： F16C32/0444
摘要： A non-linear control type magnetic bearing comprises a pair of electromagnets for magnetically attracting an object so as to permit it to be levitated therebetween, a current supply circuit for alternately supplying an excitation current to the pair of electromagnets, a circuit for generating a pair of current level signals corresponding to the levels of the currents through the respective electromagnets, a velocity sensor for generating a velocity signal corresponding to a velocity with which the object is moved, a difference circuit for generating a difference signal corresponding to a pair of current level signals, a differentiating circuit for differentiating the velocity signal to generate an acceleration signal corresponding to the acceleration rate of the object, an analog operating circuit for generating a position displacement signal corresponding to the position of displacement of the object by substituting a difference signal and acceleration signal into an equation of motion of the object, and a switching discriminator circuit for identifying a positive or a negative sign of a linear equation of the position displacement signal and velocity signal and for supplying to a current supply circuit a switching signal which alternately switches a supply of current to the respective electromagnets.
摘要翻译： 一种非线性控制型磁性轴承包括一对用于磁吸引物体以使其在其间悬浮的电磁体，用于向一对电磁体交替地供给励磁电流的电流供应电路，用于产生一对电路 对应于通过各个电磁体的电流电平的电流电平信号，用于产生对应于物体移动速度的速度信号的速度传感器，用于产生对应于一对当前电平的差分信号的差分电路 信号，用于区分速度信号以产生对应于物体的加速度的加速度信号的微分电路，用于通过代替差分信号和加速度来产生与物体的位移位置相对应的位置位移信号的模拟操作电路 信号转化为动机方程 n，以及用于识别位置位移信号和速度信号的线性方程的正或负的符号的开关鉴别器电路，并且用于向电流提供电路提供切换信号，所述切换信号交替地将电流供应切换到 各自的电磁铁。
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