| 摘要 |
PROBLEM TO BE SOLVED: To simplify a structure of a rocker arm, and to reduce the size of the rocker arm in a width direction.SOLUTION: A variable valve train 1 includes a rocker arm 30 having a roller arm 31 and a side arm 41 to drive a valve 7, and a switching device 60 for switching a driving state of the valve 7 by displacing a switching pin 66 between a connection position striding over a portion between the roller arm 31 and the side arm 41 and a non-connection position not striding over the portion therebetween by oil pressure change in a hydraulic chamber 73. The roller arm 31 has a roller shaft 36 pivotally supporting a roller 38, and the switching pin 66 and the hydraulic chamber 73 are provided in an inside of the roller shaft 36.SELECTED DRAWING: Figure 6 |
