| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Thread tension control device for a sewing machine | EP02017987.5 | 2002-08-11 | EP1288363A3 | 2005-01-26 | Yamazaki, Tohru |
A pair of tension discs is disposed on a tension stud fixed in part of a sewing machine main body. A pneumatic cylinder has a drive rod. The drive rod moves at least one of the tension discs to other tension disc so that one tension disc is pressed to other tension disc. An air regulator is interposed between the pneumatic cylinder and an air supply source, being composed in an electropneumatic system for converting between voltage and air pressure. By controlling the applied voltage to the electropneumatic air regulator on the basis of an instruction from a microcomputer, the set pressure of the air supplied to the pneumatic cylinder is adjusted. Thereby the pressure to the thread held between the pair of tension discs, that is, the thread tension is controlled. As a result, without having to stop the operation of the sewing machine, the thread tension can be adjusted promptly and appropriately. |
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| 22 | Thread tension control device for a sewing machine | EP02017987.5 | 2002-08-11 | EP1288363A2 | 2003-03-05 | Yamazaki, Tohru |
A pair of tension discs is disposed on a tension stud fixed in part of a sewing machine main body. A pneumatic cylinder has a drive rod. The drive rod moves at least one of the tension discs to other tension disc so that one tension disc is pressed to other tension disc. An air regulator is interposed between the pneumatic cylinder and an air supply source, being composed in an electropneumatic system for converting between voltage and air pressure. By controlling the applied voltage to the electropneumatic air regulator on the basis of an instruction from a microcomputer, the set pressure of the air supplied to the pneumatic cylinder is adjusted. Thereby the pressure to the thread held between the pair of tension discs, that is, the thread tension is controlled. As a result, without having to stop the operation of the sewing machine, the thread tension can be adjusted promptly and appropriately. |
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| 23 | 재봉틀의 실 장력 제어장치 | KR1020020036435 | 2002-06-27 | KR1020030019845A | 2003-03-07 | 야마자끼도오루 |
| PURPOSE: To provide a thread tension control apparatus for a sewing machine having a control means with which imparting thread tension can be instantaneously controlled and data on an appropriate press contacting force to a thread pinched between stitch balancing thread tension disks are stored. CONSTITUTION: In the thread tension control apparatus for the sewing machine provided with a stitch balancing thread tension shaft fixed on a part of a sewing machine body and hooking a thread, a pair of the stitch balancing thread tension disks arranged on the stitch balancing thread tension shaft and an air cylinder with a driving rod energizing at least one of the pair of the stitch balancing thread tension disks and placing the thread hooked on the stitch balancing thread tension shaft between the pair of the stitch balancing thread tension disks and controlling a thread press contacting force between the pair of the stitch balancing thread tension disks generated by means of an air cylinder by means of an air regulator of the air cylinder, the air regulator is made to be an electric pneumatic type and a set air pressure of the electric pneumatic type air regulator is controlled by means of a micro computer. | ||||||
