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2.发明授权
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3.发明授权
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4.发明公开
公开(公告)号：EP0103364A3
公开(公告)日：1984-09-05
申请号：EP83303879
申请日：1983-07-04
申请人： MICRODYNAMICS, INC.
CPC分类号： D05B69/26
摘要： A method and apparatus for automatically positioning a reciprocating needle while rotating the motor a minimum number of degrees. Apparatus is provided for sensing the motor angle and comparing it with a preset braking angle. After the braking angle has been reached, the motor is decelerated until it reaches a needle positioning speed, whereupon the motor angle is again sensed and compared to the needle positioning angle. The motor rotates until the needle positioning angle has been reached, whereupon the brake is reapplied to stop the motor at the desired needle position in a minimum time duration without performing an additional stitch.
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公开(公告)号：EP0397693A1
公开(公告)日：1990-11-22
申请号：EP89900820.0
申请日：1988-12-22
CPC分类号： D05B69/26
摘要： Dans un procédé d'arrêt connu, le moteur est stoppé par un freinage répété puis entraîné de nouveau jusqu'à ce que l'arbre principal de la machine à coudre atteigne une certaine position souhaitée. Dans ce nouveau procédé, la durée du processus d'immobilisation est raccourcie et la précision d'arrêt améliorée. Dans le nouveau procédé, on vérifie pour plusieurs positions prédéterminées de l'arbre principal de la machine à coudre si la vitesse instantanée de la machine à coudre dépasse une valeur parmi une pluralité de valeurs de vitesse associées aux angles de rotation de l'arbre principal de la machine, auquel cas le moteur est freiné. Dans le cas contraire, la machine à coudre est entraînée à une vitesse limite inférieure prédéterminée afin de la ramener à ladite vitesse inférieure.
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6.发明公开Sewing machine with electronic control device for the needle driving motor 失效Nähmaschinemit elektronisch gesteuertem Antriebsmotor。
公开(公告)号：EP0249290A1
公开(公告)日：1987-12-16
申请号：EP87201076.4
申请日：1987-06-09
发明人： Bisson, Flavio , Cattaneo, Giacomo
IPC分类号： D05B69/22
摘要： In a sewing machine a electronic control device for the needle driving motor is provided, comprising an electronic circuit which employs logic gates for its working in such a way as to obtain a simple, reliable and cheap control device.
摘要翻译： 在缝纫机中，提供了一种用于针驱动电动机的电子控制装置，包括电子电路，其采用逻辑门来进行工作，以获得简单，可靠和便宜的控制装置。
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公开(公告)号：EP0176599A1
公开(公告)日：1986-04-09
申请号：EP85901077.9
申请日：1985-02-26
发明人： DOHI, Takashi 20-14, Higashinakafuri 1-chome , SHIBATA, Nobuho 12-6, Myokenzaka 5-chome , OHARA, Kenichi 18-8, Deguchi 4-chome
IPC分类号： D05B69/26
摘要： A device for driving a sewing machine in which a brushless electric motor is used to drive the sewing machine, the brushless motor having a rotor made up of permanent magnet, and permitting the current-carrying phase of the stater winding to be changed depending upon the position of the rotor. A speed instruction signal generated by a speed instructor (32) depending upon the displacement quantity of a pedal (31) is compared with a speed detect signal produced by a speed detector (44), to control the revolving speed of a motor (42). Further, the motor (42) is controlled in the reverse direction by a stop instruction signal generated by a position instructor (33) responsive to the operation of the pedal (311 and by a needle position detect signal produced by a needle position detector (46) in order to stop the stitching needle at a predetermined position.
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8.发明公开
公开(公告)号：EP2423364A1
公开(公告)日：2012-02-29
申请号：EP11178525.9
申请日：2011-08-23
发明人： Tokura, Masashi
摘要： In a sewing machine (1), a length in a reference direction of a stitch portion is acquired. An image is captured of at least one marker, and image data are generated. An amount of movement of the at least one marker is computed, based on the image data. A revolution speed of a sewing machine motor is set to not greater than a specified value in a case where it is determined, based on the amount of movement that has been computed, that sewing is being performed in a specified range. In a case where it is determined that the length of the stitch portion that has been sewn in the reference direction is not less than the length that was acquired, the sewing of the stitch portion is terminated.
摘要翻译： 在缝纫机（1）中，取得线圈部的基准方向的长度。 拍摄至少一个标记的图像，并生成图像数据。 基于图像数据计算至少一个标记的移动量。 在基于所计算出的移动量确定在规定范围内执行缝制的情况下，将缝纫机马达的转速设定为不大于规定值。 在确定已经沿基准方向缝合的线迹部分的长度不小于获得的长度的情况下，缝合部分的缝合结束。
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公开(公告)号：EP0515131A1
公开(公告)日：1992-11-25
申请号：EP92304496.0
申请日：1992-05-19
IPC分类号： D05B69/26
CPC分类号： D05B69/26
摘要： In a sewing machine, when the depressed condition of a foot pedal (16) is changed from a forward depressed condition for high speed sewing to a reverse depressed condition for thread cutting, a braking circuit decreases the rotational speed of the machine motor (11) from a high speed to a low speed. The rotational speed is detected by an encoder (12). When the rotational speed detected by the encoder becomes a threshold medium speed or less, and a needle-down signal is generated from a needle position detector, the CPU (10) of the sewing machine outputs a work fabric feed pitch control start signal to a work fabric feed pitch selector. The work fabric feed pitch selector reduces or nullifies the feed pitch of the work fabric. Under this condition, in response to the next needle-down signal, the CPU operates a thread cutting mechanism to cut the needle and bobbin threads.
摘要翻译： 在缝纫机中，当脚踏板（16）的压下状态从高速缝合的正向压下状态变为螺纹切削的倒退状态时，制动回路降低机械马达（11）的转速， 从高速到低速。 旋转速度由编码器（12）检测。 当由编码器检测到的转速变为阈值介质速度或更小时，并且从针位置检测器产生针刺信号时，缝纫机的CPU（10）将工作织物馈送俯仰控制开始信号输出到 工作织物进料间距选择器。 工作织物进给间距选择器减少或消除工作织物的进给间距。 在这种情况下，响应于下一个针刺信号，CPU操作切线机构以切割针和梭芯线。
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10.发明授权
公开(公告)号：EP0249290B1
公开(公告)日：1990-08-29
申请号：EP87201076.4
申请日：1987-06-09
发明人： Bisson, Flavio , Cattaneo, Giacomo
IPC分类号： D05B69/22
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