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Sewing machine pressor foot

A sewing machine and presser foot technology, which is applied to the presser foot field of sewing machines, can solve problems such as difficult and complicated loading and unloading operations, and achieve a good crease effect.

Inactive Publication Date: 2009-05-13
YAMATO SEWING MASCH MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to correctly select the auxiliary pressing member 21 suitable for various conditions, and in order to exchange the selected auxiliary pressing member 21, there is a problem that complicated loading and unloading operations are frequently forced.

Method used

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  • Sewing machine pressor foot
  • Sewing machine pressor foot
  • Sewing machine pressor foot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be described in detail below based on drawings showing preferred embodiments. figure 2 It is a perspective view of the main part structure of the sewing machine provided with the presser foot of the present invention.

[0026] The illustrated sewing machine is a 2 Needles Covering Chain Stich Machine. Presser Bar 10 and Needle Bar 40 hang down from the front end of the sewing machine arm A. The presser foot 1 is provided with two needles 4 and 4 via a needle clamp (Needle Clamp) 41 at the lower end of the needle bar 40 . In addition, a needle plate 3 is mounted on the front end portion of the sewing machine table B located below the sewing machine arm A. As shown in FIG. The bottom of the needle plate 3 has a looper (looper) and a conveying mechanism not shown in the figure.

[0027] The above-mentioned presser foot 1 is lowered on the needle plate 3 together with the press bar 10, and the cloth W fed from the front on the sewing machine ta...

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PUM

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Abstract

To equalize a force balance between the pressing force at a folded part of cloth by an auxiliary presser foot and the pressing force in the vicinity of the position of needle location by a main presser foot, irrespective of sewing conditions, and thereby to perform excellent hem stitching under various sewing conditions. The auxiliary presser foot pressing the folded part of the cloth is fitted to one side in the direction of the width of the main presser foot pressing the cloth over an appropriate width on both sides of needle location holes, so that it can swing around a support pin located along the front edge. The rear part of the auxiliary presser foot is urged downward by a pressing spring interposed between a pressing screw and the foot and thereby the auxiliary presser foot is moved up and down against the urge of the pressing spring in conformity with the sewing conditions such as the thickness, hardness and gliding difficulty of the cloth.

Description

technical field [0001] The invention relates to a presser foot of a sewing machine, which is assembled on a sewing machine and clamps a cloth (Sewing Cloth) between needle plates (Stitch Plate) on a machine bed (MachineBed), More specifically, it relates to a presser foot of a sewing machine, which is mounted on a sewing machine for creases, and has an auxiliary presser for clamping a folded portion of a cloth on one side in the width direction. Background technique [0002] For example, in the sewing of T-shirts, in the state where the waist and cuffs are designed as cylindrical parts, the edge of the target fabric is folded back to the back side through a predetermined width, and the edge is sent to the needle drop position, and the The folded edge is sewn to the crease on the surface side of the fabric (HemmingOperation). [0003] In sewing with a sewing machine, in general, a needle plate mounted on the sewing machine table and a presser foot lowered to the needle plate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B29/06D05B29/12D05B29/08
Inventor 水崎隆林田高幸
Owner YAMATO SEWING MASCH MFG CO LTD