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Sewing machine needle

A sewing machine and machine needle technology, applied in the field of sewing machine needles, can solve problems such as large gaps

Inactive Publication Date: 2004-05-26
ORGAN NEEDLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the top portion of the existing sewing machine is tapered, the gap between the needle and the needle drop hole is inevitably very large.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Sewing machine needle
  • Sewing machine needle
  • Sewing machine needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] A preferred embodiment of the present invention will be described with reference to the accompanying drawings.

[0020] First refer to Figures 1A-1F , shows an embodiment of the sewing machine needle of the present invention.

[0021] In the drawings, reference numeral 1 denotes a needle shank, reference numeral 2 denotes a needle eye formed near a needle tip 5 on the distal end portion of the needle shank 1, and reference numeral 3 denotes a front edge along the surface of the needle shank. The long groove formed on the side, reference numeral 4 represents a slope. The sewing machine needle according to the present invention is as Figure 1B As shown, it is configured so that on the predetermined length L of the needle eye 2 from an edge 6 close to the needle tip 5 toward the needle tip 5, when the direction perpendicular to the direction in which the needle eye 2 extends from the side of the needle When viewed from the direction, the needle bar 1 has a straight lin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

A sewing machine needle capable of preventing stitch skipping and fabric yarn breakage, irrespective of high-speed and multifunction sewing machines and diversified materials being used. Over a predetermined length from an edge, closer to a needle point, of a needle eye toward the needle point, a blade has a straight profile extending parallel to a longitudinal axis of the needle as viewed from a side of the needle in a direction orthogonal to a direction in which the needle eye extends. Over a predetermined length from the straight profile portion toward the needle point, the profile of the blade is a flat cross-section in which the thickness thereof in the direction in which the needle eye extends is larger than the width thereof in the direction orthogonal to the direction in which the needle eye extends. In a needle point portion following the flat cross-section portion and extending to the needle point, the blade has a sectional shape of a perfect circle.

Description

technical field [0001] The present invention relates to a sewing machine needle which has less possibility of causing stripping or textile yarn breakage, despite the high speed and multifunctional sewing machines and the variety of materials used. Background technique [0002] Sewing machines used in sewing are broadly classified into industrial sewing machines and household sewing machines. [0003] From the viewpoint of pursuing productivity, industrial sewing machines are generally used at high rotational speeds, which can reach 8000 rpm. In automatic industrial sewing machines, seams are formed in multiple directions and stitches, which are important for seam formation, tend to become unstable under the action of sewing thread with a certain twist angle. [0004] A fabric supply device of an automatic sewing machine such as a pattern sewing machine or a cycle sewing machine uses an X-Y table in order to realize multi-directional sewing. When a top of the rotating hook ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B85/02D05B85/00
CPCD05B85/00
Inventor 户谷丰
Owner ORGAN NEEDLE CO LTD
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