VALVE OPENING/CLOSING TIMING CONTROLLER

摘要

PROBLEM TO BE SOLVED: To realize a valve opening/closing timing controller which prevents such defective operation that a wound coil part of a spring runs on a guide part during operation of the spring energizing a lock member. SOLUTION: The valve opening/closing timing controller is equipped with a retraction groove part 34 formed on a rotating transmission member 3 and housing a lock plate 80 which is energized toward a rotating member 2 by a coil spring 81; a spring housing hole 35 communicating with the retraction groove part 34, housing the coil spring 81 and provided with the guide part 35a for guiding the coil spring 81 in an axial direction; and a receiving part 23 which is formed on the rotating member 2 and which a head part 80a of the lock plate 80 is set into when the relative position of the rotating member 2 and the rotating transmission member 3 corresponds to a predetermined position. Length A of the guide part 35a in the axial direction is set larger than a clearance B between wound coils adjacent to each other in an axial direction of the coil spring 81. COPYRIGHT: (C)2005,JPO&NCIPI