Patent ID: 7055477

Claim:
A valve actuation (VA) apparatus for an internal combustion engine, comprising: a shaft; a rocker arm coaxially swingably supported on the shaft, the rocker arm being swung by a torque transmitted from the engine to operate an engine valve, the rocker arm comprising a first arm to which the torque is transmitted and a second arm for operating the engine valve, the first and second arms being separate and distinct from each other, the first and second arms being swingable relative to each other; and a fixing device that fixes the first and second arms in a predetermined relative angle position, wherein the first and second arms have faces opposed to each other, wherein one of the faces is formed with a cylindrical protrusion arranged at an edge of a hole for receiving the shaft, and wherein the other face is formed with an engagement portion in which the protrusion is swingably engaged.