Position detector and position control method for a moving body

摘要

In a position detector (30), a ring gear (46) rotates with a motor output shaft and a specified rotation position is detected by a move contact (50) and fixed contacts (60). When the output shaft rotates thereafter, holding a carrier (56) by a wave washer (58) is released and the transmission of rotation of the output shaft to the ring gear (46) is dropped. Therefore, by rotating the output shaft sufficiently at the time of assembling, an initial state, in which a protrusion section (52) abuts a protrusion (40) and the move contact (50) contacts the fixed contact (60), is set automatically.