| 摘要 |
PURPOSE:To stabilize the action of a hydraulic pivot by supporting the pin of the end of a lever in the opening and closing direction of a valve by the bracket of a cylinder head in a tappet valve device for supporting the back face of a rocker arm floatingly moved with the lever having a cam face. CONSTITUTION:The other side of the rocker arm 13 abutted at its end to a cam 11 and at the other end to a valve shaft 12 and floatingly moved is abutted at its end to a control cam 20 and at the other end to the back face of the rocker arm 13. On the side of the end of a lever 31 abutting to the rocker arm 13, a pin 31b is fixed and engaged with and guided by the groove 32b of the projecting section 32a formed to the bracket 32 extended from a cylinder head. The directions of the inclination of the groove 32b and the hydraulic pivot 19 abutting to the lever 31 are aligned to the inclined axis of the valve shaft 12. This leads to the elimination of the lateral directional stress of the swinging hydraulic pivot 19 of the lecer 31 resulting in stabilizing the action of the pivot.
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