Patent ID: 7021260

Claim:
A rocker arm capable of being rocked by a cam to actuate a valve of an internal combustion engine, said rocker arm comprising: an arm body prepared from a single plate material by means of a press work and having a length and a width, said arm body including a pair of side walls opposite to each other and a connecting wall bridging between the opposite side walls and also having a pivot support portion, defined at a location generally intermediate of the length of the arm body, about which the rocker arm undergoes a rocking motion, and first and second ends opposite to each other; a roller rotatably mounted on the first end of the arm body and engageable with the cam; and an overlapped structure including an end overlap piece formed integrally with a side portion of the connecting wall adjacent the second end of the arm body, said end overlap piece being bent backwardly to overlap the connecting wall to thereby define an adjustment element, said adjustment element having a mounting hole defined therein for adjustably receiving therein a valve driving member.