Patent ID: 7430997

Claim:
A variable valve operating device for an engine to adjust a valve lift and a valve timing of the engine, said variable valve operating device comprising: a rocking cam which is rocked by a cam provided on a rotatable cam shaft; a rocking cam support member that rockably supports said rocking cam; a valve which is opened and closed by a rocking motion of said rocking cam; a rocking position changing unit that moves said rocking cam support member to change a rocking position of said rocking cam; and a lock unit that can fix said rocking cam support member so as not to move during a valve-opening period of said valve, wherein said lock unit comprises: a support base that movably supports said rocking cam support member; an external force applying unit that applies an external force to said rocking cam support member; and a fixing and holding unit that integrally holds said rocking cam support member on said support base when said external force applying unit applies the external force to said rocking cam support member.