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Threading device of sewing machine

A sewing machine and threading technology, applied in the field of sewing machines, can solve the problem that the threading hook cannot hook the thread and the like

Inactive Publication Date: 2003-10-15
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the position of the needle is changed depending on the material of the thread or the twisting method, etc., the threading hook sometimes cannot catch the thread

Method used

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  • Threading device of sewing machine
  • Threading device of sewing machine
  • Threading device of sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. refer to figure 1 and Fig. 2, which schematically shows a sewing machine 10 to which the threading device of the present invention is applied. The sewing machine 10 includes: a sewing bed portion 12, which has a horizontal plane; a post 14, which stands upright from the right end of the bed portion 12; and a sewing arm 16, which extends from the post 14 and a machine head 18, which is located at the left end of the arm 16. A needle shank 26 extends downwardly from the head 18 . A sewing needle 36 is detachably connected to the lower end of the needle bar 26 . The head 18 has enclosed a needle bar driving mechanism 28 for moving the needle bar up and down, a needle bar swinging mechanism 30 for making the needle bar 26 horizontally swing, and a needle bar swinging mechanism 30 for making the needle bar drive mechanism 28 horizontally swing. A needle thre...

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PUM

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Abstract

A sewing machine includes a sewing needle having an eye, a threading hook passed through the eye of the needle, a traveling mechanism for traveling the threading hook so that the threading hook is advanced through the eye of the needle and retreated through the eye of the needle, a thread holding member for holding the thread, a moving mechanism for moving the thread holding member between a first position where the thread holding member is close to the threading hook having been advanced through the eye of the needle and a second position where the thread holding member is away from the threading hook having been advanced through the eye of the needle, and a speed reducing mechanism for reducing a moving speed of the thread holding member moved near the threading hook having been advanced through the eye of the needle.

Description

technical field [0001] The present invention relates generally to sewing machines, and more particularly to sewing machines provided with a threading hook for passing thread through the eye of a needle. Background technique [0002] JP-B-7-71596 discloses a threading device for sewing machines, which includes: a threading hook that allows passage through the eye of the needle; a threading rod that supports the hook; position, the rotating member rotates the hook; a holding member, the holding member is used to hold the needle thread in two positions; a moving mechanism, the moving mechanism moves the holding member near the eye of the needle; and an operating member, The threading rod can be moved up and down and rotated by operating the operating member. [0003] In the above threading device, when the user operates the operating member quickly, the moving speed of the hook will increase. Depending on the environment where the sewing machine is installed and the material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B87/02
CPCD05B87/02
Inventor 深尾博昭
Owner BROTHER KOGYO KK