发明名称 |
Edge guide and fabric feed for sewing machine |
摘要 |
A pair of superposed flexible web workpieces lying on a horizontal table are fed in a horizontal transport direction to a treatment location downstream of an edge guide having vertically spaced upper, lower, and middle blades defining upper and lower horizontally open slots by continuously horizontally reciprocating the table with a stroke sufficiently long relative to the surface structure of the lower face of the underlying workpiece and at a frequency sufficiently high relative to the inertia of the workpieces that the workpieces will move horizontally relative to the table without substantial friction. An edge of each of the workpieces is engaged in a respective one of the slots and jets of gas are directed from the plates at an angle against the workpieces to hold up the upper and middle plates while urging the workpiece edges into the respective slots substantially out of contact with the plates.
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申请公布号 |
US4590876(A) |
申请公布日期 |
1986.05.27 |
申请号 |
US19840684010 |
申请日期 |
1984.12.20 |
申请人 |
BERLIN OBERBEKLEIDUNG |
发明人 |
MENCKE, HELMUT;GRUENER, HANS-JUERGEN;OERTMANN, PETER;NERLICH, HORST;GRABASCH, HEINZ |
分类号 |
D05B33/00;D05B35/10;(IPC1-7):D05B35/10 |
主分类号 |
D05B33/00 |
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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