Variable valve mechanism

A variable valve mechanism that changes a lift characteristic of a gas exchange valve of an engine, the variable valve mechanism comprising:

• a cam fixed to a camshaft configured to rotate in association with rotation of a crank shaft of the engine;
• a swinging arm disposed between the cam and the valve, the swinging arm including a first end portion and a second end portion, the first end portion configured to be actuated via the cam so as to open the valve;
• a mover configured to move the second end portion;
• a regulator pivotally coupled to the first end portion via a swinging shaft extending parallel to the camshaft, the regulator configured to regulate a lateral displacement of the first end portion relative to the valve when the second end portion is moved via the mover;
• and
• a connector configured to pivotally connect the second end portion to the mover so as to enable the swinging arm to pivot about the swinging shaft when the second end portion is moved via the mover.