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    • 4. 发明授权
    • Sewing machine drive
    • 缝纫机驱动
    • US4384241A
    • 1983-05-17
    • US198241
    • 1980-10-17
    • Otmar Stillhard
    • Otmar Stillhard
    • D05B69/18H02H7/08H02P7/29H02P5/06
    • D05B69/18H02H7/0833H02P7/29Y10S388/903
    • A sewing machine drive having a mains rectifier (1) which, via a chopper (2) operating at a relatively high frequency, supplies direct current pulses to the driving motor (3). The duty ratio of these driving pulses is controlled as a function of a nominal value transmitter (11) and a current limiting circuit (14) controlled by the motor speed. This produces a smooth quiet, vibration-free operation of the motor (3) or the driven machine with a high degree of motor efficiency. Moreover, a speed-dependent current limitation occurs in such a manner that at high speeds a limited maximum current flows, which at the same time results in an output limitation.
    • 一种具有电源整流器(1)的缝纫机驱动器,其通过以较高频率操作的斩波器(2)向驱动电动机(3)提供直流脉冲。 这些驱动脉冲的占空比作为由电动机速度控制的额定值变送器(11)和限流电路(14)的函数进行控制。 这使电动机(3)或从动机器的电动机效率高度平稳,无振动地运行。 此外,速度相关的电流限制以这样的方式发生,即在高速下流动有限的最大电流,这同时导致输出限制。
    • 6. 发明授权
    • Button hole sewing device
    • 按钮孔缝纫装置
    • US4622910A
    • 1986-11-18
    • US745892
    • 1985-06-18
    • Otto HangarterHansulrich LerchOtmar Stillhard
    • Otto HangarterHansulrich LerchOtmar Stillhard
    • D05B3/06D05B3/24
    • D05B3/24
    • The button hole presser foot engages longitudinally slidably in a frame like slide which is taken along with the sewing material. The slide comprises a cord stretched in the longitudinal direction which encircles the lower end of a shaft of the presser foot shank. At the top end of the shaft is provided an impeller through which a light beam of a light source emerges toward a optoelectric transducer. During the sewing operation the slide moves with the sewing material and it drives the impeller which generates pulses each corresponding to a step of the motion of the sewing material, respectively of the slide. For determining the length of the cords, a determined number of steps, respectively of pulses is counted each time. This permits a reliable and precise determination of the length of the cords.
    • 按钮孔压脚可纵向滑动地接合在与缝合材料一起被带走的框架状滑动件中。 滑动件包括在纵向方向上拉伸的绳索,其包围压脚柄的轴的下端。 在轴的顶端设置有叶轮,光源的光束通过该叶片朝向光电换能器出射。 在缝纫操作期间,滑动件与缝纫材料一起移动,并驱动叶轮,该叶轮分别产生与滑动件的缝合材料的运动步骤对应的脉冲。 为了确定电线的长度,每次都对每个脉冲进行确定的步数。 这允许可靠和精确地确定线的长度。
    • 8. 发明申请
    • METHOD AND DEVICE FOR MINIMIZING STITCHING FAULTS IN EMBROIDERING DEVICES
    • 用于在刺绣装置中最小化缝合不良的方法和装置
    • US20060283366A1
    • 2006-12-21
    • US11422997
    • 2006-06-08
    • Gerard DurvilleOtmar Stillhard
    • Gerard DurvilleOtmar Stillhard
    • D05B3/00
    • D05C13/02D05B21/00D05C9/04
    • A method and the device for minimizing stitching faults in embroidery devices (1) is provided, which includes a drive for moving the material holder (13), with an article to be sewn (11) being stretched therein, based on the knowledge that such stitching faults frequently can be explained by oscillations of the article to be sewn (11) and the material holder (13) due to rapid accelerations. Various effects, such as different types of articles to be sewn, changing weights, and friction ratios can cause a change of the oscillation behavior. One or more sensors (29, 43, 44) are provided and arranged such that they can detect the oscillation of the article to be sewn (11) and/or the material holder (13). The control of the drive and/or the sewing needle (23) occurs depending on the detected oscillations such that deviations of the stitching site from the predetermined target value is minimized.
    • 提供了一种用于使刺绣装置(1)中的缝合缺陷最小化的方法和装置,其包括用于移动材料保持器(13)的驱动装置,其中待缝制品(11)被拉伸在其中,基于这样的知识 可以通过快速加速的待缝制品(11)和材料架(13)的摆动来解释缝合故障。 各种效果,如不同类型的待缝制品,重量和摩擦比可能会导致振荡行为的变化。 一个或多个传感器(29,43,44)被设置和布置成使得它们能够检测待缝制品(11)和/或材料保持器(13)的振荡。 驱动和/或缝针(23)的控制根据检测到的振动而发生,使得缝合部位与预定目标值的偏差最小化。
    • 10. 发明授权
    • Sewing machine
    • 缝纫机
    • US4586448A
    • 1986-05-06
    • US545186
    • 1983-10-25
    • Hansueli LerchOtmar Stillhard
    • Hansueli LerchOtmar Stillhard
    • D05B69/18D05B69/22D05B69/26
    • D05B69/22D05B69/18
    • A foot control of the sewing machine can be actuated from a neutral position in two directions. In one case, a variable resistance becomes effective which produces regulating voltages within a determined range. A logic circuit with comparators produces for this voltage range a condition in which the driving motor of the sewing machine is controlled to operate with a number of turns corresponding to the voltage range. When the machine is stopped the needle is automatically positioned in its upper stop position. By repetitive actuation backward of the foot pedal the needle may be positioned in its bottom stop position and again in its upper stop position and so on. The logic treatment of the control signals from the foot control permits to transmit these signals for all required instructions through a two wire cable which is already required for the speed control.
    • 可以从两个方向的中立位置致动缝纫机的脚踏控制。 在一种情况下,可变电阻变得有效,其产生在确定范围内的调节电压。 具有比较器的逻辑电路为该电压范围产生一种条件,其中缝纫机的驱动电机被控制为以与电压范围相对应的匝数运行。 当机器停止时,针被自动定位在其上停止位置。 通过脚踏踏板向后的重复致动,针可以定位在其底部停止位置并且再次位于其上停止位置等等。 来自脚踏控制器的控制信号的逻辑处理允许通过已经需要用于速度控制的双线电缆来传送所有需要的指令的这些信号。