发明名称 |
Knife track adjustment structure of thread cutter of sewing machine |
摘要 |
A knife track adjustment structure of a thread cutter of a sewing machine includes a front guide board bridged over the base board with an upper and a lower ends of the front guide board locked on the base board. The front guide board up and down adjustably displaceable on the base board. A guide is disposed under the middle section of the front guide board, a guide pin being sequentially passed through a hook rod arm and a knife arm. A swing arm, a first end of the swing arm being pivotally connected with the base board, a pin being connected with the bottom of a second end of the swing arm. The pin is sequentially passed through the hook rod arm and pivotally connected on the knife arm. A spring compressed between the swing arm and the base board helps in restoring the knife arm and hook rod arm.
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申请公布号 |
US6694903(B1) |
申请公布日期 |
2004.02.24 |
申请号 |
US20020319648 |
申请日期 |
2002.12.16 |
申请人 |
CHING CHI MACHINE CO., LTD. |
发明人 |
CHEN SHIH-FANG |
分类号 |
D05B65/00;D05B73/12;(IPC1-7):D05B65/00 |
主分类号 |
D05B65/00 |
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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