D - Textiles – Paper – 05 – B
Patent
D - Textiles, Paper
05
B
D05B 3/12 (2006.01) D05B 35/10 (2006.01)
Patent
CA 2050861
A trouser-fly piece serging apparatus includes a guide unit disposed upstream of a serging station and composed of a first elongate guide member extending at an angle relative to the path of movement of a trouser-fly piece being advanced by a serging unit, and a second elongate guide member extending parallel to the path of movement of the trouser-fly piece. The trouser-fly piece is guided by the first guide member into the serging station so that a trimming cutter disposed immediately upstream of the serging unit assumes a position to conform to a curvature of the leading end of a substantially arcuate trimming line passing across a corner of the leading end of the trouser-fly piece. Synchronous operation of the serging unit and the trimming cutter causes the trouser-fly piece to turn in one direction during which an arcuate corner which is trimmed by the trimming cutter and subsequently serged by the serging unit is automatically produced on the leading end of the trouser-fly piece. Then, the trouser-fly piece is guided by the second guide member, and as the trouser-fly piece is further advanced, a curved longitudinal edge of the trouser-fly piece including the trimmed arcuate corner is completely serged with an overedge or serge stitching.
La présente invention vise une machine à surfiler des braguettes de pantalons, comportant un guide disposé en amont d'un poste de surfilage et composé d'un premier élément allongé se prolongeant en angle par rapport au chemin de déplacement des braguettes, et un deuxième élément allongé parallèle au chemin de déplacement. Les braguettes sont guidées par le premier élément dans le poste de surfilage de manière qu'un couteau rafraîchisseur placé immédiatement en amont du poste adopte une position correspondant à la courbure d'une ligne de coupe sensiblement précise traversant un coin de l'amorce d'extrémité de la pièce, lequel est alors découpé puis surfilé selon une séquence d'opérations synchrones du couteau et de l'appareil à surfiler. Prise en charge par le deuxième élément de guidage, la pièce est par la suite entièrement surfilée et surjetée sur son bord longitudinal, le coin y compris.
Dudek Chet
Fukumoto Yasuhiro
Ishikawa Kiichiro
Gowling Lafleur Henderson Llp
Ykk Corporation
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