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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: 2018-11-13
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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Examples

Experimental program
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Embodiment Construction

[0058] [Sewing Machine Outline]

[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 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 horizontal and perpendicular to the Y-axis direction is referred to as the X-axis. As for the direction (front-back direction), the vertical up-down direction is defined as the Z-axis direction (up-down direction).

[0060] like figure 1 As shown, the sewing machine 10 is a so-called lockstitch sewing machine, which has: a sewing machine frame 2, which supports the overall structure; a sewing needle up and down movement mechanism (illustration omitted), which makes the needle bar ...

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PUM

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Abstract

The invention provides a sewing machine in which proper vertical movement of a sewing needle is performed by using an inching rotary disc. The sewing machine comprises a sewing needle vertical movement mechanism which passes by an upper shaft via a sewing machine motor to make a needle bar holding the sewing needle to move vertically, and a control device which controls the rotation movement of the upper shaft realized by the sewing machine motor. The sewing machine is provided with an inching rotary disc which enables drive of the sewing machine motor through rotation operation so as to adjust the upper shaft angle of the upper shaft. The control device performs control to set part of the range of the upper shaft angle to be a first adjusting interval in which the drive of the sewing machine motor is enabled with a stipulated resolution relative to the rotation operation of the inching rotary disc and set the other part of the range of the angle except for the first adjusting intervalor all the angle range to be a second adjusting interval in which the drive of the sewing machine motor is enabled through motion different from that in the first adjusting interval.

Description

technical field [0001] The present invention relates to a sewing machine which appropriately adjusts the position of a sewing needle. Background technique [0002] A sewing machine generally has a pulley connected to an upper shaft on the outside of the sewing machine frame, and by rotating the pulley, a sewing needle can be moved up and down (for example, refer to Patent Document 1). [0003] Thereby, at the time of operation such as alignment of the needle drop position, the height adjustment of the sewing needle is performed by carefully applying the rotation operation to the pulley. [0004] In addition, in the case of sewing with the feeling of hand sewing or trial sewing, a method of use is performed in which the pulley is rotated a plurality of times to perform sewing corresponding to several stitches. [0005] Patent Document 1: Japanese Unexamined Patent Publication No. 2013-252162 [0006] Due to the heavy work load of the rotation operation of the above-mentione...

Claims

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Application Information

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IPC IPC(8): D05B55/14D05B19/12
CPCD05B19/12D05B55/14
Inventor 杵渊直树中山元
Owner JUKI CORP
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