| 摘要 |
PROBLEM TO BE SOLVED: To provide a valve opening/closing timing control device which enlarges a changeable range of a relative rotation phase between a driving side rotation member and a driven side rotation member.SOLUTION: A valve opening/closing timing control device 10 includes: an outer rotor 11 which rotates synchronously with a crank shaft 1 of an engine E; an inner rotor 12 which is arranged coaxially with the outer rotor 11 and rotates synchronously with a cam shaft 3; a first lock member 31 and a second lock member 32 which are accommodated into the inner rotor 12 and advance and retract in parallel to a shaft center X; a first lock hole 33 formed on a rear plate 15 and a second lock hole 34 formed on a front plate 14, so as to be fitted when the first lock member 31 and the second lock member 32 are protruded; and a spring 35 which protrudes the first lock member 31 and the second lock member 32 with a biasing force. When viewing along a shaft center X, at least a part of the first lock member 31 and at least a part of the second lock member 32 are arranged so as to be superimposed on each other. |
