发明名称 |
Device for making braid openings in cuts of garments |
摘要 |
A two-needle sewing machine includes a machine casing having a sewing head mounting the needles, a work support plate, and a ripping knife supported in the sewing head and working between the needles to form an elongated slot of a braid opening in a cut garment piece. A supporting bar is guided in the machine casing for longitudinal displacement perpendicular to the work support plate, and is rotatable into different angular positions. A single angular cross-section cutting knife is mounted on the supporting bar and serves as a tool for making diverging corner cuts at the opposite ends of the elongated slot. Air-operated piston-cylinder actuators are provided to rotate the supporting bar between two positions spaced angularly by 180 DEG , and to displace the supporting bar longitudinally to effect the diverging corner cuts. The sewing head mounts a sliding foot arrangement for moving the work in a direction opposite to the normal work feeding direction.
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申请公布号 |
US4075954(A) |
申请公布日期 |
1978.02.28 |
申请号 |
US19760748227 |
申请日期 |
1976.12.07 |
申请人 |
PFAFF INDUSTRIEMASCHINEN GMBH |
发明人 |
HINTZEN, PETER;WILLENBACHER, ERICH |
分类号 |
D05B3/10;D05B27/04;D05B35/06;D05B37/02;(IPC1-7):D05B3/10 |
主分类号 |
D05B3/10 |
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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