| 摘要 |
The present invention relates to a device for generating an electrical signal corresponding to the tensioning of a thread 5 in a sewing machine, with a pressure-sensitive, electrical resistor 10 being arranged in the path of the thread 5, with the resistance of the resistor 10 varying in relation to the pressure or the force which is exerted on the same and the resistor 10 being coupled into an electronic circuit Fig. 4 for generating an electrical signal corresponding to the resistance of the resistor 10 and thereby to the force exerted on the same. <IMAGE> |
