| 摘要 |
<p>PURPOSE:To detect torque simply with high reliability and at a low cost by gaining large displacement in the axial direction of the shaft from small rotational displacement between an input shaft and an output shaft. CONSTITUTION:An input and an output shaft 11, 12 capable of relatively rotationally displacing and a gear shaft 20 parallel to this are provided. A gear mechanism 21 for rotation transmission to transmit the rotation between these shafts is provided and a helical gear 24 in the part of this is constituted movably in the axial direction of the shaft for taking out the displacement. On the displacement taking out part side and a fixed part 40 facing to it, a permanent magnet 32 for detecting the displacement of the displacement taking out part in the axial direction and a position detection sensor means 34 using a Hall element 33 are provided.</p> |
