Sewing machine

A technology for sewing machines and objects to be sewn, applied in sewing machine components, sewing equipment, cloth feeding mechanisms, etc., can solve problems such as adverse effects of sewing quality, poor feeding, and unstable sewing action, and prevent poor feeding. , to achieve the effect of sewing quality and stable fabric feeding

Active Publication Date: 2017-07-21
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the above-mentioned conventional sewing machine feeds the cloth while clamping the cloth with the three cloth guide plates, the material to be sewn is stretched when the cloth is fed, whic

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0045] [Outline of Embodiments of the Invention]

[0046] Below, based on Figure 1 to Figure 5 , the sewing machine 10 as the first embodiment of the present invention will be described.

[0047] figure 1 is a perspective view of the sewing machine 10 viewed obliquely from the upper left, figure 2 It is an oblique view viewed obliquely from above the left proximal side, image 3 It is a plan view around the needle drop position. The sewing machine 10 is a so-called overlock sewing machine.

[0048] In addition, in the following description, the horizontal and upstream side of the feeding direction of the sewn object is referred to as the "near end side", and the horizontal and downstream side of the sewing object's feeding direction is referred to as the "far end side", A direction that is horizontal and goes toward the distal end side to become the left-hand side is referred to as "left side", and a direction that is horizontal and goes toward the distal end side and b...

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PUM

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Abstract

The present invention corrects the curl of the sewed object. The sewing machine includes first and second lower nozzle ports (311, 321) which are located at the lower side of the sewed object, and eject air at the upstream in the feeding direction of the sewed object relative to the drop needle positions (P1, P2) and the drop needle position side relative to the end part of the sewed object subjected to sewing toward two different directions of the end portion side. The first and second lower nozzle ports are at the upstream side of the feeding direction of the sewed object. The ejection direction of the first lower nozzle port (311) is orthogonal to the feeding direction of the sewed object when viewed in plan view, and the ejection direction of the second lower nozzle port (321) is inclined with respect to the feeding direction of the sewed object when viewed from above. The curl generated at the end side portion of the sewed object can be effectively horizontally extended by ejecting the air in two different directions, and the sewing can be performed without sewing the edge portion.

Description

technical field [0001] The present invention relates to a sewing machine suitable for sewing curled objects. Background technique [0002] Depending on the material of the object to be sewn, sometimes curls are likely to occur at its edge, and if the object to be sewn is directly sewn by a sewing machine, the needle may be dropped from above the curled portion and sewed directly. If the curled edge portion is sewn in as described above, the sewn object must be discarded, or all the sutures must be dismantled and re-sewn, and in any of the above cases, a very large loss will be caused. [0003] Therefore, in the existing sewing machine, the end edge of the object to be sewn composed of the upper cloth and the lower cloth is clamped while using the three cloth guide plates protruding from the front end to the upstream side of the cloth feeding direction. In feeding, the edge part after curling is corrected by the side edge part of a cloth guide plate, and sewing is performed ...

Claims

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Application Information

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IPC IPC(8): D05B35/02
CPCD05B35/02
Inventor 佐藤邦彰中岛穗纯
Owner JUKI CORP
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