Unlock instant, AI-driven research and patent intelligence for your innovation.

Thread Hooking Device for a Hemming Device of a Sewing Machine

a technology of hemming device and thread hooking device, which is applied in the direction of needle bars, sewing apparatus, textiles and paper, etc., can solve the problems of disengagement or even breakage of thread hooking members

Active Publication Date: 2014-12-18
TSENG HSIEN CHANG
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a device for a sewing machine that automatically hooks and inserts thread when a guide portion is slid along. This simplifies the process of sewing and improves efficiency.

Problems solved by technology

For instance, there is an automatic thread hooking device which is provided with a pivotable thread hooking member, wherein the thread cannot be fully enclosed after being hooked and is very likely to disengage from the thread hooking member or even break during the hemming operation.

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thread Hooking Device for a Hemming Device of a Sewing Machine
  • Thread Hooking Device for a Hemming Device of a Sewing Machine
  • Thread Hooking Device for a Hemming Device of a Sewing Machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016]The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention.

[0017]Referring to FIGS. 1-3, a thread hooking device for a hemming device of a sewing machine in accordance with a preferred embodiment of the present invention is shown, wherein the hemming device includes a swing arm 11 with one end connected to and moved by a drive shaft 10, and at another end of the swing arm 11 are provided a first hook 20 and a second hook 30. The present invention is characterized in that at the middle of the first hook 20 is provided with a thread hooking member 40, and a return member 50 which is hooked between the first hook 20 and the thread hooking member 40 to make the thread hooking member 40 return to its original position automatically. On the thread hooking member 40 is provided a stop member 60 which cooperates...

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
Login to View More

PUM

No PUM Login to View More

Abstract

A thread hooking device for a hemming device of a sewing machine is provided with a swing arm driven to move by a drive shaft. The first hook is formed with a guide portion on which being slidably mounted a thread hooking member 40 located at a second end of the guide portion. The thread hooking member is formed a thread hooking portion, the thread is inserted into the thread groove via the thread hooking portion and then extends out of the thread hole. The thread guiding member moves from the second end of the guide portion to the first end of the guide portion, when the thread hooking is aligned to the first end of the guide portion, the thread is inserted through the thread hole, moving the thread hooking member to the second end of the guide portion makes the thread insert in the thread groove.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to an automatic thread hooking device, and more particularly to a thread hooking device for a hemming device of a sewing machine.[0003]2. Description of the Prior Art[0004]A sewing machine is usually provided with an upper thread hook in order to perform hemming. In order for the thread on the upper thread hook to be quickly inserted and guided, many automatic thread hooking devices have been invented. For instance, there is an automatic thread hooking device which is provided with a pivotable thread hooking member, wherein the thread cannot be fully enclosed after being hooked and is very likely to disengage from the thread hooking member or even break during the hemming operation.[0005]The present invention has arisen to mitigate and / or obviate the afore-described disadvantages.SUMMARY OF THE INVENTION[0006]The primary objective of the present invention is to provide a thread hooking devi...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): D05B87/02
CPCD05B87/02D05B57/00
Inventor TSENG, HSIEN-CHANG
Owner TSENG HSIEN CHANG