JPS63175581U

JPS63175581U -

Info

Publication number: JPS63175581U
Application number: JP6755987U
Authority: JP
Priority date: 1987-05-06
Filing date: 1987-05-06
Publication date: 1988-11-15

Description

[Brief explanation of the drawing]

第１図は本発明の一実施例によるカール矯正装
置付ミシンの斜視図、第２図は第１図のミシン本
体の拡大斜視図、第３図は同実施例の布押えの昇
降機構の周辺部を示す斜視図、第４図はエアーバ
ルブを示す断面図、第５図は同実施例の空気圧回
路である。１……ミシン本体、７……布押え、１１……踏
み板、１３……連結機構、１９……エアーバルブ
（第２のエアーバルブ）、３１……エアーポンプ
、４５……押え昇降機構、７１……エアーバルブ
（第１のエアーバルブ）、１０３……上ノズル、
１０５……下ノズル。 FIG. 1 is a perspective view of a sewing machine with a curl straightening device according to an embodiment of the present invention, FIG. 2 is an enlarged perspective view of the sewing machine body of FIG. 1, and FIG. FIG. 4 is a sectional view showing the air valve, and FIG. 5 is a pneumatic circuit of the same embodiment. DESCRIPTION OF SYMBOLS 1... Sewing machine body, 7... Presser foot, 11... Step board, 13... Connection mechanism, 19... Air valve (second air valve), 31... Air pump, 45... Presser foot lifting mechanism, 71 ... Air valve (first air valve), 103 ... Upper nozzle,
105...Lower nozzle.

Claims

[Claims for Utility Model Registration] Curling correction of edge edges of fabric in which a nozzle is installed in front of the seam forming point to spray compressed air against the outward or inward curls that occur at the edges of fabric. The sewing machine is equipped with an air pump and a pneumatic circuit that is connected between the air pump and the nozzle to supply and cut off compressed air, and the pneumatic circuit is interlocked with the lifting and lowering of the presser foot. A first air valve is actuated by a coupling mechanism that supplies compressed air to the nozzle when the presser foot is in the raised position, and a mechanical coupling mechanism that supplies compressed air to the nozzle when the sewing machine is driven. and a second air valve for supplying air to the nozzle.