Patent ID: 7444967

Claim:
A variable valve device for an internal combustion engine, the device comprising: a camshaft which is rotatably provided in an internal combustion engine while having a cam; a rocker shaft which is arranged next to the camshaft; a valve is driven by the cam; a cam follower rocker which is rotatably provided in the rocker shaft, and is rocked by following the cam; a valve drive rocker which is rotatably provided in the rocker shaft next to the cam follower rocker, and drives the valve, either a body of the cam follower rocker or a body of the valve drive rocker is made of an iron-based metal material, and the other body is made of a material different from the iron-based metal material, heat treatment being not required in the different material; and a switching portion which makes the valve drive rocker in a drive state by rendering the cam follower rocker abut on the valve drive rocker, makes the valve drive rocker in a non-drive state by canceling the abutment, and is able to switch the valve drive rocker between the drive state and the non-drive state.