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公开(公告)号：US5239218A
公开(公告)日：1993-08-24
申请号：US566033
申请日：1990-08-13
申请人： Ichiro Hashimoto , Giichi Ishida
发明人： Ichiro Hashimoto , Giichi Ishida
摘要： A step motor which comprises a stator having a winding wound therearound, a rotor rotatably provided with respect to the stator, a multiplicity of pole teeth formed on mutually opposing faces of the stator and rotor, a position detector for detecting a position of the rotor, and switching means for changing over a phase current flowing through the winding wound around the stator on the basis of a position signal indicative of the position of the rotor, wherein the pole teeth and a position detectable portion are integrally formed on a rotary yoke of the rotor and the position detectable portion is detected by the position detector. A method for recording a position signal of the rotor in the step motor, wherein, when the position detectable portion is made in the form of a magnetic recording medium, the pole teeth are formed on a predetermined surface of a rotary yoke of the rotor, a magnetic recording medium is provided on a surface of the rotary yoke which is not provided with the pole teeth, and a position detecting signal is magnetically recorded on the magnetic recording medium with respect to a reference position of the pole teeth.
摘要翻译： 一种步进电动机，包括定子绕组绕组的绕组，相对于定子可转动地设置的转子，形成在定子和转子相互相对的面上的多个极齿，用于检测转子位置的位置检测器， 以及切换装置，用于根据指示转子位置的位置信号来改变流过缠绕在定子上的绕组的相电流，其中极齿和位置可检测部分一体形成在转子的旋转磁轭上 转子和位置检测部分由位置检测器检测。 一种用于在步进电动机中记录转子的位置信号的方法，其中当位置可检测部分形成为磁记录介质时，极齿形成在转子的旋转磁轭的预定表面上， 在没有设置极齿的旋转磁轭的表面上设置磁记录介质，并且相对于磁极的参考位置将位置检测信号磁记录在磁记录介质上。
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公开(公告)号：US4998034A
公开(公告)日：1991-03-05
申请号：US413730
申请日：1989-09-28
CPC分类号： H02K21/22 , H02K1/2786 , H02K15/03
摘要： A cylindrical field system of a low speed high torque motor is divided in an axial direction into first and second field system portions, these two field system portions are connected by a connecting member and a field magnet is disposed between the field system portions so that particularly machine work can be made before fitting of the field magnet. Accordingly, chips can be removed easily by use of a simple device.A cylindrical field system is divided in an axial direction into first and second field system portions, these field system portions are connected by a connecting member and cylindrical magnets fixed to a flexible belt-like fixture are wound on the field system portions between them so as to produce a rotor. Accordingly, the assembling property of the motor can be improved remarkably.
摘要翻译： 低速高扭矩电动机的圆柱形场系统沿轴向分成第一和第二场系统部分，这两个场系统部分通过连接构件连接，场磁体设置在场系统部分之间， 机器工作可以在安装场磁体之前进行。 因此，可以通过使用简单的装置容易地去除芯片。 圆柱形场系统沿轴向划分成第一和第二场系统部分，这些场系统部分通过连接构件连接，并且固定到柔性带状固定装置的圆柱形磁体缠绕在它们之间的场系统部分上，以便 以产生转子。 因此，能够显着提高电动机的组装性。
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公开(公告)号：US4644232A
公开(公告)日：1987-02-17
申请号：US662012
申请日：1984-10-18
申请人： Yuukou Nojiri , Kosho Ishizaki , Giichi Ishida , Junshiro Inamura
发明人： Yuukou Nojiri , Kosho Ishizaki , Giichi Ishida , Junshiro Inamura
CPC分类号： H02P5/50
摘要： The present invention provides method and apparatus to control a plurality of DC motors each having an encoder by a sole microcomputer. The actual rotating speed of each DC motor is detected in response to the signal from the encoder. A pulse width of a voltage which is applied to each motor is controlled due to the deviation between the actual speed and a preset speed. The output signals from the encoders regarding a specific DC motor to the other DC motor are sequentially selected by a selection signal, thereby controlling the speed measurements and calculations regarding a plurality of DC motors and the duties of electric powers which are applied to the DC motors.
摘要翻译： 本发明提供了通过单个微型计算机控制多个DC电动机的方法和装置，每个DC电动机都具有编码器。 响应于来自编码器的信号，检测每个直流电动机的实际转速。 由于实际速度和预设速度之间的偏差，对每个电动机施加的电压的脉冲宽度进行控制。 来自编码器的关于特定DC电动机的输出信号通过选择信号顺序地选择，从而控制关于多个DC电动机的速度测量和计算以及施加到DC电动机的电力的占空比 。
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公开(公告)号：US4445449A
公开(公告)日：1984-05-01
申请号：US379916
申请日：1982-05-19
申请人： Kaneharu Kuzuya , Giichi Ishida , Kosho Ishizaki
发明人： Kaneharu Kuzuya , Giichi Ishida , Kosho Ishizaki
CPC分类号： D05B69/22 , G05B19/106
摘要： A stitch pattern setting apparatus for an electrically driven sewing machine comprises at least two pattern setting units each including stitch pattern selecting arrangements for selecting a desired one of a plurality of different stitch patterns and pattern setting arrangements for setting the numbers of stitches, respectively, for pattern elements constituting the selected stitch pattern. Each of the pattern setting unit is capable of selecting the stitch pattern and setting the stitch numbers independent of the other pattern setting unit.
摘要翻译： 一种用于电动缝纫机的针迹图案设置装置包括至少两个图案设置单元，每个图案设置单元包括用于选择多个不同针迹图案中期望的一个的针迹图案选择装置和用于设置针数的图案设置布置，用于 构成所选针迹图案的图案元件。 每个图案设置单元能够选择针迹图案并且设置与其他图案设置单元无关的针数。
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公开(公告)号：US4080914A
公开(公告)日：1978-03-28
申请号：US725631
申请日：1976-09-22
申请人： Giichi Ishida , Masayoshi Sunada
发明人： Giichi Ishida , Masayoshi Sunada
CPC分类号： D05B69/26
摘要： In a control circuit for controlling the rotating speed of a clutch and brake motor of a sewing machine capable of performing non-ravel seaming, an improved non-ravel seaming controller for enabling non-ravel seaming during a certain number of seams at the start of sewing and for generating a medium speed signal at a predetermined level during a certain number of seams at the end of sewing to enable non-ravel seaming at such time.
摘要翻译： 在用于控制能够执行非扯裂接缝的缝纫机的离合器和制动马达的转速的控制电路中，改进的非破裂接缝控制器，用于在开始时的一定数量的接缝期间能够进行非扯裂接缝 在缝合结束时在一定数量的接缝期间产生预定水平的中等速度信号，以使得能够在这样的时间进行非扯裂接缝。
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