| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate the replacement of a lubricant in a semi-enclosed space 51 by a simple structure. <P>SOLUTION: In a crankshaft 35, there is provided a lubrication passage 53 whose one end communicates with the semi-enclosed space 51 and the other end is opened inward in the radial direction from one end, and therefore, a large centrifugal force based on the rotation of the crankshaft 35 works on the lubricant positioned in the vicinity of the one-end opening of the lubrication passage 53. As a result, after the lubricant stored in a gear apparatus is sucked from the other-end opening of the lubrication passage 53, the lubricant flows in the lubrication passage 53, is discharged from the one-end opening and supplied to the semi-enclosed space 51. <P>COPYRIGHT: (C)2011,JPO&INPIT |
