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Technology Offer |
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| Title : BOTTOM THREAD SUPPLY DEVICE DETECTING RESIDUAL THREAD FOR A SEWING MACHINE |
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Status |
Patented |
Part |
Mech/Metal |
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Conditon |
Licensing |
Estimated Cost |
0 US$ |
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Disclosed herein is a bottom thread supply device for sewing machines.
The bottom thread supply device of the present invention includes a light source (500) and a light receiving sensor (110). When the light source (500) radiates light onto a bobbin (300), around which a bottom thread is wound, if there is no remaining thread, the light receiving sensor (110), which is disposed in a central portion of a rotary hook (100), detects the light, thus generating a signal to let a user know that there is no remaining thread. As such, when there is no remaining thread, the present invention automatically lets the user know this thanks to the operation of the light receiving sensor, thus preventing unproductive or defective sewing, thereby increasing productivity and preventing economic loss.
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 Images 1)
WO2006049383A1[1].pdf |
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