发明名称 |
METERING DEVICE FOR SEWING MACHINES |
摘要 |
A tape feed device for an elastic tape from a supply at a sewing machine having a biased actuating lever, whose angular position varies in dependence upon the size of a loop and which controls the motor of a take-off roller. An adjuster, which is electrically actuable in a controlled manner, acts on the actuating lever in such a way that the tape tension can be altered in accordance with an electrical variable. The adjuster has a coil whose electromagnetic field lines cut an armature which is connected to the actuating lever.
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申请公布号 |
US5178081(A) |
申请公布日期 |
1993.01.12 |
申请号 |
US19900520585 |
申请日期 |
1990.05.08 |
申请人 |
UNION SPECIAL G.M.B.H. |
发明人 |
VON-HAGEN, WOLF-RUDIGER;PORDZIK, HORST |
分类号 |
D05B29/06;D05B35/06;D05B69/28 |
主分类号 |
D05B29/06 |
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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