| 摘要 |
<p>In a variable valve gear, a second connecting section (107) is configured such that a fifth side surface (109) separated further from a second side surface (97) than a fourth side surface (105) is formed under the fourth side surface (105). As a result, when measured in the direction of a rocker shaft (33), the second connecting section (107) has a smaller width at the lower part thereof which is on the intake valve side than the upper part thereof which is on the slipper surface (59) side. Also, a guide surface (111) is formed at the lower part of the fourth side surface (105), and the guide surface (111) is coaxial with an engaging hole (91), has the same diameter as the engaging hole (91), and has a circular arc shape having an arc shorter than the arc of a semicircle. Even if a connecting pin (50) is advanced with a through-hole (47) and the engaging hole (91) not accurately aligned with each other, the front end of the connecting pin (50) is guided to the engaging hole (91) through the guide surface (111). This extends a time period in which the connecting pin (50) can be advanced, and as a result, the connecting pin can be connected with improved reliability.</p> |
