公开(公告)号：US1464528A

公开(公告)日：1923-08-14

申请号：US31261819

申请日：1919-07-22

Applicant: SINGER MFG CO

Inventor： MARTIN HEMLEB

IPC: D05B69/18

CPC classification number: D05B69/18

公开(公告)号：US1444917A

公开(公告)日：1923-02-13

申请号：US38072820

申请日：1920-05-12

Applicant: SINGER MFG CO

Inventor： MARTIN HEMLEB

IPC: D05B69/18

CPC classification number: D05B69/18

公开(公告)号：US1409950A

公开(公告)日：1922-03-21

申请号：US31185019

申请日：1919-07-18

Applicant: SINGER MFG CO

Inventor： MARTIN HEMLEB

IPC: D05B69/18

CPC classification number: D05B69/18

公开(公告)号：US1302196A

公开(公告)日：1919-04-29

申请号：US26167118

申请日：1918-11-08

Applicant: MIGLIORE LOUIS STANLEY

Inventor： MIGLIORE LOUIS STANLEY

CPC classification number: D05B69/18

公开(公告)号：US20170275799A1

公开(公告)日：2017-09-28

申请号：US15454540

申请日：2017-03-09

Applicant: Hsuan-Tai CHEN

Inventor： Hsuan-Tai CHEN

IPC: D05B69/18 ,  D05B69/28 ,  H02P7/28

CPC classification number: D05B69/18 ,  D05B69/28 ,  H02P7/2805

Abstract: A closed-loop control device of a mechanical sewing machine includes an isolated switch-mode power supply module, a DC motor, a speed control module, a processor, an electronic switch, a current detection module and a voltage detection module. The isolated switch-mode power supply module rectifies an AC power to a DC power and supplies the DC power to the DC motor. The speed control module sends a speed signal to the processor. The processor adjusts an output voltage to the DC motor according to the speed signal. The current detection module and the voltage detection module further detect an operating current signal and an operating voltage signal of the DC motor for the processor to control a turn-on time of the electronic switch to adjust an average operating voltage of the DC motor according to the operating current signal, the operating voltage signal and the speed signal.

公开(公告)号：US20170204547A1

公开(公告)日：2017-07-20

申请号：US15404602

申请日：2017-01-12

Applicant: JUKI CORPORATION

Inventor： Junichi YOSHIDA ,  Toshiki SUGIYAMA

IPC: D05B19/14 ,  D05B69/26 ,  D05B69/18

CPC classification number: D05B19/14 ,  D05B69/18 ,  D05B69/26

Abstract: A sewing machine includes a sewing machine motor serving as a drive source for driving the vertical movement of a needle bar, a control part for controlling the sewing machine motor such that a sewing pitch coincides with a set value, and imaging part for imaging a seam formed in a workpiece at a needle drop position. The control part obtains the length of the most recent seam from an image of the most recent seam imaged by the imaging part and also compares the length of the most recent seam with the set value of the sewing pitch to thereby correct the number of rotations of the sewing machine motor.

公开(公告)号：US07007619B2

公开(公告)日：2006-03-07

申请号：US11187006

申请日：2005-07-22

Applicant: Eiichi Hamajima

Inventor： Eiichi Hamajima

IPC: D05B69/18

CPC classification number: D05B69/18

Abstract: A foot controller connection error detection device of the present invention includes a foot controller to output a start/stop instruction and a rotation speed instruction of a sewing machine motor to a control unit to control the sewing machine motor, a plug to disconnectably connect the foot controller to the control unit and a contact failure detection unit to detect a contact failure of the connector between the plug and the control unit.

Abstract translation: 本发明的脚踏控制器连接错误检测装置包括脚踏控制器，用于将缝纫机马达的开始/停止指令和转速指令输出到控制单元以控制缝纫机马达，插头可断开地连接脚 控制器和接触故障检测单元，以检测插头和控制单元之间的连接器的接触故障。

公开(公告)号：US5939687A

公开(公告)日：1999-08-17

申请号：US2664

申请日：1998-01-05

Applicant: Rolf Ellermann

Inventor： Rolf Ellermann

IPC: D05B69/18 ,  H01H3/02 ,  H01H13/16 ,  H01H21/22 ,  H01H3/16

CPC classification number: D05B69/18 ,  H01H13/16

Abstract: A knee-operated switch for a working machine, the switch including a carrier supported to the machine and a profile extending off the carrier at an angle to the profile. The profile includes first and second elongate, parallel electric contact strips that are normally separated. Sheathing over at least one of the strips is deflectable to in turn deflect the contact strips into engagement. Support strips support the contact strips normally apart until the contact strips are deflected together. A flexible elastic housing over the sheathing and the strips is deflectable to deflect the sheathing to move the contact strips together. The switch profile extends over a length so that actuation can take place at different actuating points along the profile.

Abstract translation: 一种用于工作机器的膝盖操作的开关，该开关包括支撑在机器上的托架和与该轮廓成一定角度延伸离开托架的轮廓。 该轮廓包括通常分离的第一和第二细长的平行电接触带。 至少一个条带上的护套是可偏转的，从而使接触条变形成接合。 支撑条支撑通常分开的接触条，直到接触条偏转在一起。 护套和条带之间的柔性弹性壳体可偏转以偏转护套以将接触条移动到一起。 开关轮廓延伸一段长度，使得致动可以沿着轮廓在不同的致动点进行。

公开(公告)号：US5029230A

公开(公告)日：1991-07-02

申请号：US391032

申请日：1989-08-09

Applicant: Satomi Yamauchi

Inventor： Satomi Yamauchi

IPC: H02P29/00 ,  D05B69/18 ,  H02P27/04

CPC classification number: D05B69/18 ,  D05B19/12 ,  D05B69/14 ,  H02P29/20 ,  H02P2201/03 ,  Y10S388/904

Abstract: A motor control apparatus for a sewing machine includes an adjustable speed setter for generating a speed set signal. A first memory stores a plurality of reference values each defining a reference region into which the speed set signal can fall. A second memory stores speed setpoint values corresponding to the reference regions. A central processing unit selects one of the reference regions by comparing the speed set signal with the reference values and selects the corresponding speed setpoint value from the second memory. A motor is controlled to run at the selected speed setpoint value.

Abstract translation: 缝纫机的马达控制装置包括用于产生速度设定信号的可调节速度设定器。 第一存储器存储多个参考值，每个参考值定义速度设定信号可以落在其中的参考区域。 第二存储器存储对应于参考区域的速度设定值。 中央处理单元通过将速度设定信号与参考值进行比较来选择一个参考区域，并从第二存储器中选择相应的速度设定值。 控制电机以选定的转速设定值运行。

公开(公告)号：US4970978A

公开(公告)日：1990-11-20

申请号：US323886

申请日：1989-03-15

Applicant: Frank R. Albertsson

Inventor： Frank R. Albertsson

IPC: D05B69/18

CPC classification number: D05B69/18

Abstract: The invention comprises an arrangement for controlling a machine by means of the body movement of the operator. It is used for controlling a sewing machine intended for a handicapped person or for an operator not using the foot control. A pulse (18) consisting of a number of periods of 40 kHz sound waves are emitted from a loud-speaker (15). The sound waves are reflected by the head of the operator and a digital circuit measures the time takes the sound pulse to return to the receiver (16). The distance measured to the head of the operator is then used to proportionally control the speed of the machines motor.