Spool rotation angle measuring device for variable damper dampers of automotive suspension devices

摘要

The present invention discloses a spool rotation angle measuring device for a damping force variable damper of a vehicle suspension system. The disclosed invention relates to a stepping motor 4 mounted on the upper end of a damper 3 provided on a vehicle body 1 and connected between a spool 5 for varying the area of a flow path rotated by the stepping motor 4 A connecting rod 6; A driving gear (7) fitted to the outer periphery of the connecting rod (6); A driven gear (8) engaged with the drive gear (7); And a potentiometer 9 which is fitted in the driven gear 8 and outputs a voltage corresponding to the rotation angle of the driven gear 8 to measure the rotation angle of the spool 5 .