发明名称 |
Interlock for buttonhole sewing presser device |
摘要 |
An interlock between the work engaging presser foot and the work engaging shoe of a buttonhole sewing presser device which is effective to prevent travel of the work engaging shoe when the presser foot is raised for work insertion. In addition a latch is provided effective to prevent accidental disengagement of the interlock when the buttonhole sewing presser device tilts after the presser foot has been raised.
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申请公布号 |
US4096811(A) |
申请公布日期 |
1978.06.27 |
申请号 |
US19770813568 |
申请日期 |
1977.07.07 |
申请人 |
THE SINGER COMPANY |
发明人 |
MARSH, WALTER H. W. |
分类号 |
D05B29/08;D05B3/06;D05B3/24;D05B29/00;D05B39/00;(IPC1-7):D05B3/24 |
主分类号 |
D05B29/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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