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Double-needle lockstitch sewing machine

A technology of lockstitch sewing machine and machine base, which is applied to sewing machine components, sewing machine casings, sewing machine collar mechanisms, etc., and can solve problems such as inability to form flat seams

Inactive Publication Date: 2020-11-24
泰科尼卡株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, in this circular sewing machine, the stitches of flat seams cannot be formed
In addition, in the past, there was no double-needle lockstitch machine dedicated to sewing cylindrical objects that can sew cylindrical objects with flat seams.

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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  • Double-needle lockstitch sewing machine
  • Double-needle lockstitch sewing machine
  • Double-needle lockstitch sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Hereinafter, a two-needle lockstitch sewing machine according to an embodiment of the present invention will be described in detail based on the drawings.

[0039] figure 1It is a perspective view of the twin-needle lockstitch sewing machine 1 according to the embodiment of the present invention. In addition, in the following description, the front side of a cloth feeding direction is called "front", and the back side is called "back" suitably. In addition, "left" and "right" used suitably in description mean the direction based on the state which faced the cloth feeding direction.

[0040] The two-needle lockstitch sewing machine 1 is a lockstitch sewing machine suitable for sewing tubular objects such as sleeves of clothes. Such as figure 1 As shown, the double-needle lockstitch sewing machine 1 has adopted a base portion 2, a pillar portion 6 erected upward from the base portion 2, an upper arm portion 7 disposed on the upper portion of the pillar portion 6, and a...

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

Provided is a double-needle lockstitch sewing machine with which it is possible to easily sew a fabric rolled in tubular shape by double-row lockstitching. The double-needle lockstitch sewing machinecomprises: a pair of needles (9) that reciprocate in a vertical direction; a pair of loop catchers (40) which are arranged respectively in correspondence to the pair of needles (9), and which rotate about a hook shaft (41) extending in the vertical direction to catch a loop of needle thread formed by the needles (9); a lower shaft (20) which is arranged forwardly, in a fabric-feeding direction, ofthe needles (9) and the loop catchers (40), extends in a horizontal direction, and rotates in conjunction with a main shaft (10) that drives the needles (9); and a connecting shaft (30) which extendsin the fabric-feeding direction and is connected to the lower shaft (20) and the hook shaft (41) in a power-transmittable manner to rotate. The loop catchers (40) are rotationally driven in conjunction with the vertical movement of the needles (9) as the rotating force of the lower shaft (20) is transmitted via the connecting shaft (30) to the hook shaft (41). In this way, it is possible to sew atubular article with two rows of lockstitch seams.

Description

technical field [0001] The invention relates to a double-needle lockstitch sewing machine, in particular to a double-needle lockstitch sewing machine suitable for sewing cylindrical objects. Background technique [0002] In the past, a double-needle lockstitch sewing machine is known, which is equipped with two needles and ring catchers respectively corresponding to the above two needles, through the cooperation of the above two needles and the two ring catchers to form two rows of lockstitch stitches ( For example, Patent Document 1, Patent Document 2). [0003] In such a two-needle lockstitch sewing machine, the upper arm is provided with a main shaft for moving the two needles up and down, and the base is provided with a lower shaft for rotating the two loop catchers. The lower shaft is provided below the upper arm portion on which the main shaft is provided, is disposed substantially parallel to the main shaft, is substantially perpendicular to the cloth feeding directi...

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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IPC IPC(8): D05B1/14D05B57/14D05B73/06
CPCD05B1/12D05B55/12D05B57/36D05B73/06D05B1/14D05B57/14D05B57/143D05B93/00
Inventor 荒井武夫
Owner 泰科尼卡株式会社
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