Voile dispersing mechanism for sartorius

Abstract

The present invention provides a yarn divider mechanism of a sewing machine. The yarn divider of the yarn divider mechanism does not interfere with the looper, and can surely perform conscious thread skipping, and at the same time, can prevent unintentional thread skipping, and can perform proper thread skipping. sewing. It has a looper (5) and a yarn divider (17), the looper (5) is synchronized with the up and down motion of the sewing needle (2), by surrounding the looper bar (7) ) swings and engages with the upper thread to perform an elliptical motion to form stitches; the yarn divider (17) reciprocates in a left and right direction approximately perpendicular to the cloth feeding direction to pick up the bottom thread of the above-mentioned looper Lead the above-mentioned upper thread. The above-mentioned yarn divider (17) is arranged to be able to move forward and backward between the following two positions, that is, to advance in the direction G that is substantially the same as the cloth feeding direction, to carry out the wire position of the wire, and to move from the wire position. This is the retracted position for retracting in the direction opposite to the feed direction.

Description

[0001] The present invention relates to a yarn divider mechanism of a double-thread overlock sewing machine and the like, and more particularly relates to a yarn divider mechanism of a sewing machine capable of intentionally jumping threads. Background technique [0002] For efficient production, sewing of jeans, casual pants (slacks) and the like is carried out, for example, through the following steps. That is, as shown in FIG. 8 , insert the end portion of the front and rear body panels 101 into the opening of the elongated belt panel 100 having a substantially U-shaped cross section, and the front and rear body panels 101 ... and the waist belt panel 100 are inserted into the opening. Only the predetermined distance A is sewn, then a jumper portion (non-sewn portion) where only the predetermined distance B is not sewn is formed, and only the predetermined distance A is sewn again, so that the sewing is continuously performed by so-called intermittent sewing. Then, in order...

AI Technical Summary

Problems solved by technology

[0008] However, once the yarn divider 42 is positioned on the upper side of the outermost peripheral track of the looper 41, there will be a limit for making the front end of the yarn divider 42 approach the looper 41, and the bottom thread of the looper 41 will be raised or the guide wire will become loose. erratic suturing, producing involuntary jumpers, and inability to perform proper suturing

[0009] And, in the yarn divider mechanism of the above-mentioned structure, the driven shaft side member 43a and the driving shaft side member 43b are returned to the connected state with the coil spring 45. Since the return time of the spring 45 is required, it is difficult to cope with sewing machines. The problem of high-speed operation

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