发明申请
- 专利标题： Sewing or embroidery machine
- 专利标题（中）： 缝纫机或刺绣机
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申请号： US11374338申请日： 2006-03-13
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公开(公告)号： US20060213412A1公开(公告)日： 2006-09-28
- 发明人: Gerard Durville , Roland Beer , Beda Steinacher , Michael Berger
- 申请人： Gerard Durville , Roland Beer , Beda Steinacher , Michael Berger
- 申请人地址： CH Steckborn CH-8266
- 专利权人： Fritz Gegauf Aktiengesellschaft BERNINA-Nahmaschinenfabrik
- 当前专利权人： Fritz Gegauf Aktiengesellschaft BERNINA-Nahmaschinenfabrik
- 当前专利权人地址： CH Steckborn CH-8266
- 优先权： CH00424/05 20050311
- 主分类号： D05B51/00
- IPC分类号： D05B51/00
摘要：
To determine the thread supply on a lower-thread bobbin (17), holes (19) are arranged in the shape of a spiral in a flange (21) of the bobbin. Light from a light source (35), which is directed towards the flange (21), is reflected only by those holes (19), behind which there is no longer any thread, so that the light beams (36) reach the rear flange (22) and can be reflected therefrom and received by the light receiver (39).
公开/授权文献
- US07162966B2 Sewing or embroidery machine 公开/授权日：2007-01-16
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