发明名称 |
Looper thread take-up structure of sewing machine capable of very easily clearing up tangling thread |
摘要 |
Looper thread take-up structure of sewing machine capable of very easily clearing up tangling thread, including: a rotary shaft; a first and a second take-up cam plates each having a cam outer rim and a non-circular shaft hole, the first and second take-up cam plates being detachably keyed on the rotary shaft; and a spacing ring having a through hole and detachably fitted on the rotary shaft between the first and second take-up cam plates for spacing the same. In case a stitching thread is accidentally tangled on the spacing ring, the first and second take-up cam plates can be separated from each other for quickly and easily clearing up the tangling thread.
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申请公布号 |
US6263812(B1) |
申请公布日期 |
2001.07.24 |
申请号 |
US20000689862 |
申请日期 |
2000.10.13 |
申请人 |
CHING CHI MACHINE CO., LTD. |
发明人 |
CHEN SHIN-FANG |
分类号 |
D05B63/00;(IPC1-7):D05B49/04 |
主分类号 |
D05B63/00 |
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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