发明授权
- 专利标题： Sewing machine with a device for setting thread tension
- 专利标题（中）： 缝纫机具有设定线张力的装置
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申请号： US773198申请日： 1985-09-03
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公开(公告)号： US4638751A公开(公告)日： 1987-01-27
- 发明人: Susumu Hanyu , Kazumasa Hara , Akiyoshi Sasano , Mikio Koike
- 申请人： Susumu Hanyu , Kazumasa Hara , Akiyoshi Sasano , Mikio Koike
- 申请人地址： JPX Tokyo
- 专利权人： Janome Sewing Machine Co., Ltd.
- 当前专利权人： Janome Sewing Machine Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX59-180421 19840831
- 主分类号： D05B47/02
- IPC分类号： D05B47/02 ; D05B63/00
摘要：
A tension setting device of the sewing machine comprises an upper thread tension device on the machine frame. A selecting device for selecting a thread tension in response to a thickness of a fabric being sewn is mounted to the machine frame. An auxiliary upper thread tension device cooperating with the selecting device and actuated thereby to adjust upper thread tension in response to the thickness of the fabric is provided in the tension setting device. A lower thread adjusting device cooperates with the thread tension selecting device to adjust the lower thread in response to the thickness of the fabric being sewn.
公开/授权文献
- US4110898A Machine tool 公开/授权日：1978-09-05
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