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Sewing Machine

a sewing machine and leading end technology, applied in the field of sewing machines, can solve the problems of inability to realize the desired adjustment of no sewing machine capable of realizing such a minimized and waste, and achieve the effect of reducing the length of the leading end portion

Inactive Publication Date: 2013-06-20
TOKAI IND SEWING MACH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an improved sewing machine with a cutting device that can securely cut the excess leading end of sewing material after a sewing operation. This allows for a shorter leading end portion of the sewing material, which reduces the likelihood of it getting in the way during the next sewing operation. The machine also allows for adjustment of the length of the leading end portion based on the type of sewing material and object being sewn. Overall, the invention improves the efficiency and accuracy of sewing machines and ensures a reliable sewing process.

Problems solved by technology

Because such a portion of the sewing material that could not be sewn onto the sewing object is discarded after being cut manually by the human operator, that portion of the sewing material would result in a considerable waste.
However, no sewing machine capable of realizing such a minimized length of the leading end portion and desired adjustment of the length of the leading end portion has not been proposed yet.

Method used

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Examples

Experimental program
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Embodiment Construction

[0026]The following describe in detail a preferred embodiment of the present invention with reference to the accompanying drawings.

[0027]FIG. 1 is a plan view showing a preferred embodiment of an embroidery sewing machine of the present invention, FIG. 2 is a front view of an example of a supply stand S, and FIG. 3 is a plan view showing a stored state of an original fabric N on the supply stand S. Hereinbelow, a preferred embodiment of a multi-head embroidery sewing machine having a plurality of machine heads will be described with primary reference to FIGS. 1 to 3. Note that, in FIG. 1, the multi-head embroidery sewing machine is shown with an upper section of a machine frame 1 recessed and thus illustration of the later-described machine heads (see FIGS. 4 and 5) is omitted.

[0028]A plurality of machine heads are provided on the front surface (corresponding to the lower end side in FIG. 1 and the surface closer to a reader of FIG. 2) at predetermined intervals along a left-right d...

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PUM

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Abstract

A pulling device is configured to grip, after cutting of a sewing material, a suitable portion of the sewing material by means of a grip member, where a leading end portion of the sewing material having been pulled out from a guide device, and pull back the sewing material by movement of the grip member having the sewing material gripped thereby. Thus, the leading end portion of the sewing material, pulled out and extending from the guide device more than necessary, can be minimized to a length necessary for the sewing material to be reliably sewn onto a sewing object at an initial stage of a next sewing operation. In this way, it is possible to minimize a length of a portion of the sewing material that was heretofore wasted without being sewn onto the sewing object.

Description

BACKGROUND[0001]The present invention relates to sewing machines of a type provided with a cutting device that, in response to completion of a sewing operation where a tape or cord or other elongated sewing material having been guided by a guide device to a needle drop position is sewn by lock stitching onto a sewing workpiece or sewing object (e.g., fabric) through loop stitching, pulls out the sewing material from the guide device and cuts the pulled-out elongated sewing material.[0002]Heretofore, there have been known sewing machines of a type which includes: a vertically-driven needle bar; a sewing needle fixed to the lower end of the needle bar; a rotary member mounted concentrically with the needle bar and freely rotatable about the axis of the needle bar; and a guide device (guide) fixed to the rotary member for guiding an elongated sewing material (e.g., string-shaped embroidering material, such as a tape or cord) to a needle drop position of the sewing needle. The sewing ma...

Claims

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Application Information

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IPC IPC(8): D05C11/20D05B65/02
CPCD05B65/02D05C7/08D05B37/04D05C11/20D05B35/00
Inventor MATSUMOTO, MITSUNORI
Owner TOKAI IND SEWING MACH CO LTD