Patent ID: 7959537

Claim:
A valve timing control apparatus configured to be transmitted with torque from a crankshaft and controlling a camshaft to manipulate a valve timing of at least one of an intake valve and an exhaust valve of an internal combustion engine, the valve timing control apparatus comprising: a first rotary member configured to rotate in conjunction with the crankshaft and having a first gear portion; a second rotary member configured to rotate in conjunction with the camshaft and having a second gear portion that is shifted from the first gear portion with respect to an axial direction; a planetary rotary member having a third gear portion and a fourth gear portion, which are configured to be eccentrically meshed respectively with the first gear portion and the second gear portion so as to unitarily perform a planetary motion thereby to change a relative phase between the first rotary member and the second rotary member; a planetary carrier configured to support the planetary rotary member from a radially inner side; and a biasing member interposed between the planetary rotary member and the planetary carrier to bias the planetary rotary member radially outward, wherein the first gear portion and the third gear portion therebetween define a first-third meshed portion, the second gear portion and the fourth gear portion therebetween define a second-fourth meshed portion, the second-fourth meshed portion has a backlash, which is larger than a backlash of the first-third meshed portion, the planetary rotary member is in contact with the biasing member at a contact portion having a center position with respect to the axial direction, and the center position is located on a radially inner side of the second-fourth meshed portion.