sewing machine

A technology for sewing machines and sewing machine presser feet, which is applied in the field of sewing machines and can solve the problems of not being able to stably maintain the edges of the base

Active Publication Date: 2018-12-07
YKK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the base bending member of Patent Document 1, although the sides of the base can be folded into a U shape, since there is no guide member or holding member for maintaining the folded state of the base between the base bending member and the needle, Therefore, when sewing with a needle, it may not be possible to hold the edge of the bent base stably

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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Embodiment Construction

[0062] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

[0063] figure 1 It is a perspective view showing a part of a sewing machine according to an embodiment of the present invention, figure 2 It is an enlarged perspective view showing the sewing mechanism and the periphery of the guide piece in the sewing machine according to the embodiment of the present invention.

[0064] In the description below, the figure 1 , figure 2 The near front side is the left side, and the far side is the right side. In addition, the extending direction of the needle is defined as the vertical direction, the base side of the needle is defined as the upward direction, and the needle tip side is defined as the downward direction. In addition, the direction in which the base sheet and the slide fastener chain are conveyed is defined as the transport direction, the upstream side along the transport direction is defined as the transp...

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Abstract

The invention provides a sewing machine comprising a sewing mechanism (1). The sewing mechanism (1) comprises a needle (11) with a needle hole through which yarns (13) can pass through; a sewing machine presser foot (12) for pressing a sewing sheet (F) and a substrate sheet (B) which are to be sewed by the needle; the sewing sheet (F) and the substrate sheet (B), on one hand are moved in a set direction, on the other hand pass through the sewing mechanism (1) to be sewed; the sewing mechanism also comprises a substrate sheet guiding mechanism which is provided with a bending guiding part (2) and a guiding sheet (3), wherein the bending guiding part (2) guides the substrate sheet (B) by bending the substrate sheet (B), and the guiding sheet (3) extends by protruding more than the end part, at the sewing mechanism side, of the bending guiding part (2) does and guides the substrate sheet (2) which is kept in a bending state between the sewing machine presser foot (12) and the sewing sheet (F). Therefore, the substrate is bent and the bending state of the substrate can be steadily kept until sewing is started.

Description

technical field [0001] This invention relates to sewing machines, and more particularly to sewing machines for sewing zippers against a bent base panel. Background technique [0002] When sewing a slide fastener chain to a backpack base or the like, it is generally necessary to bend the backpack base or the like and to sew the slide fastener chain while maintaining this state. Patent Document 1 discloses a sewing machine capable of conveying a base with respect to a sewing needle while bending the base. Patent Document 1 specifically discloses a sewing machine having a base bending member 25 configured to bend the base into a U shape while guiding the base, where the base bending member has a U shape. Shaped folded edge portion 29, and constituted such that the edge of the base enters the U-shaped folded edge portion 29, and as the U-shaped folded edge portion 29 is bent relative to the flat portion in the base bending member 25, the The sides of the base are also folded i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B23/00D05B35/06
Inventor 川户卓真泽田敏昭
Owner YKK CORP
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