Sewing machine with automatic needle threader

A sewing machine and sewing needle technology, applied in the field of sewing machines, can solve the problems of difficulty in improving the threading efficiency of sewing needles and the like
CN1746366AInactive Publication Date: 2006-03-15BROTHER KOGYO KK
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BROTHER KOGYO KK
Publication Date
2006-03-15
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A sewing machine includes a needle bar (11) holding a sewing needle (19) having an eye hole (19a), a needle threading mechanism (17) including a threading hook (74) passing a needle thread (10) through the eye hole (19a) of the sewing needle, a presser bar (12) with a presser foot (20) attached to its lower end, a vertically moving mechanism (80) vertically moving the presser bar (12), a drive mechanism (83) driving the vertically moving mechanism (80), a threading operation unit (25) operating the needle threading mechanism (17), and a drive mechanism controlling unit (C) controlling the drive mechanism (83) vertically moving the presser bar (12) to a position where interference between the presser foot (20) and threading hook (74) is avoided when the needle threading operation unit (25) unit is operated.
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Description

technical field

[0001] The invention relates to a sewing machine which has a sewing needle threading mechanism capable of automatically passing the sewing thread through the eyelet of the sewing needle. Background technique

[0002] A conventional sewing machine has many threading parts (thread tension adjuster, thread take-up spring, thread take-up lever, needle bar thread guide, etc.) through which the upper thread from the bobbin passes. After passing through these threading parts in a predetermined order and path, the upper thread passes through the eyelet of a sewing needle connected to the needle bar. Some conventional sewing machines also have automatic needle threaders, which have a suture grip and a threading element to hold the end of the upper thread so as to automatically thread the upper thread through the eye of the needle. In the above-mentioned sewing machine, when the thread holder holding the upper thread moves the upper thread to a turning position near t...

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
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