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sewing machine

A sewing machine and sewing needle technology, which is applied to sewing machine components, sewing machine needle holders, sewing equipment, etc., can solve the problem of determining the amount of up and down movement of difficult sewing needles.

Active Publication Date: 2022-03-08
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, it is difficult to uniformly determine the amount of vertical movement of the sewing needle corresponding to the rotation operation of the jog dial.

Method used

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Embodiment Construction

[0058] [Summary of sewing machine]

[0059] Hereinafter, embodiments of the present invention will be described in detail based on the drawings. figure 1 It is a perspective view which shows the whole structure of the sewing machine 10 which is this embodiment. In addition, in the following description, the direction which is horizontal and parallel to the longitudinal direction of the sewing machine arm portion 2a described later is referred to as the Y-axis direction (left-right direction), and the direction which is horizontal and orthogonal to the Y-axis direction is referred to as the X-axis The direction (front-rear direction), the vertical up-down direction is the Z-axis direction (up-down direction).

[0060] like figure 1 As shown, the sewing machine 10 is a so-called lockstitch sewing machine, and has: a sewing machine frame 2, which supports the overall structure; a needle up-and-down movement mechanism (not shown), which moves the needle bar 12 holding the sewing...

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PUM

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Abstract

Use the jog dial to perform proper up and down movement of the sewing needle. The sewing machine has: a sewing needle up and down movement mechanism, which moves a needle bar holding the sewing needle up and down from the sewing machine motor through the upper shaft; and a control device, which controls the rotation of the upper shaft by the sewing machine motor. There is a jog dial for adjusting the upper shaft angle of the upper shaft by rotating the sewing machine motor, and the control device performs control such that a part of the range of the upper shaft angle is set relative to the rotational operation of the jog dial. And the first adjustment section that drives the sewing machine motor with a predetermined resolution, sets a part or all of the angular range other than the first adjustment section as a second adjustment section that drives the sewing machine motor through a different action from the first adjustment section. .

Description

technical field [0001] The present invention relates to a sewing machine that appropriately adjusts the position of the sewing needle. Background technique [0002] A sewing machine generally has a pulley connected to the upper shaft on the outside of the sewing machine frame, and by rotating the pulley, the needle can be moved up and down (for example, see Patent Document 1). [0003] Thereby, at the time of alignment of the needle drop position, etc., the height of the sewing needle is adjusted by carefully applying a rotating operation to the pulley. [0004] In addition, in the case of sewing with a feeling of hand-sewing, trial sewing, or the like, a method of using the pulley is performed by applying a plurality of rotation operations to the pulley to perform sewing corresponding to several stitches. [0005] Patent Document 1: Japanese Patent Laid-Open No. 2013-252162 [0006] Since the above-mentioned rotational operation of the pulley requires a large work load, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B55/14D05B19/12
CPCD05B19/12D05B55/14
Inventor 杵渊直树中山元
Owner JUKI CORP