| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a driving device for a sewing machine capable of driving a sewing machine stably by stably specifying an operation amount of a pedal.SOLUTION: A driving device 31 includes: a lever 32 capable of rotating within a predetermined range according to a pedal operation; a magnet 33 fixed at the lever 32; a Hall element, which is an element for detecting a magnetic field of the magnet 33, arranged oppositely at a position different from a flat surface where the magnet 33 which moves according to the rotation of the lever 32 passes; and an amplifier 35 for outputting a signal for driving a sewing machine on the basis of the magnetic field in the direction vertical to the flat surface detected by the Hall element. When the lever 32 rotates within the predetermined range and the magnet 33 moves, a relative position of the Hall element with respect to the magnet 33 moves at a central part in the magnetization direction of the magnet 33, when the magnet 33 and the Hall element are viewed from the direction vertical to the flat surface.</p> |
