Patent ID: 8967102
Filing Date: 2015-03-03
Classification: F01L

Abstract:
1. A valve timing control device, comprising: a drive side rotating member that rotates in synchronization with an engine crankshaft; a driven side rotating member, disposed so as to be rotatable relative to the drive side rotating member on the same axis as the drive side rotating member, that rotates together with a camshaft that opens and closes at least one of an inlet valve and exhaust valve of an engine; and a locking mechanism that locks a relative rotation phase of the drive side rotating member and driven side rotating member at a lock phase, wherein the locking mechanism includes a regulating body, and n (n is a positive integer) stepped portions with which the regulating body engages, allowing relative rotation bringing the relative rotation phase nearer to the lock phase and regulating the relative rotation whereby the relative rotation phase is distanced from the lock phase, the relative rotation phase is regulated in steps from a most retarded phase or most advanced phase until reaching the lock phase by the regulating body engaging sequentially with a plurality of stepped portions, and a positional relationship between the stepped portions and the regulating body is set so that among a plurality of the relative rotations, from a first relative rotation from the most retarded phase or most advanced phase to a first relative rotation phase regulated by a first stepped portion of the n stepped portions to a last relative rotation from an n