发明名称 |
Spring biased presser foot |
摘要 |
A work presser device wherein a constant-force spring is employed for urging a presser bar downwardly, with substantially constant pressure, against a work piece. This constant pressure is exerted regardless of the axial movement of the presser bar owing to variation of the thickness of the work piece in the course of a sewing operation.
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申请公布号 |
US4417533(A) |
申请公布日期 |
1983.11.29 |
申请号 |
US19810225031 |
申请日期 |
1981.01.12 |
申请人 |
BROTHER KOGYO KABUSHIKI KAISHA |
发明人 |
OSHIMA, NOBUYASU;TSUMURA, TETSUYA |
分类号 |
D05B29/00;D05B29/02;(IPC1-7):D05B29/00 |
主分类号 |
D05B29/00 |
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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