| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a crankshaft that has a simple structure for easily increasing the load bearing capacity of a web portion adjacent to a journal portion provided with a thrust receiving member, against a thrust load, and reducing the weight, and to provide a method for manufacturing the same. <P>SOLUTION: A pin holding mold 31 adjacent to a journal holding mold 30 holding the journal portion J to which the thrust receiving member TM is mounted, is arranged on a side facing the journal holding mold 30 and opposite to a direction in which a pin P is eccentric relative to the journal portion J held by the journal holding mold 30, and is provided with a protrusion 46 for applying pressure to a part w of a row material 10 which becomes the web portion, at a portion between the journal holding mold 30 and the pin holding mold 31 so that an end portion of the web portion near the journal portion J is protruded. <P>COPYRIGHT: (C)2012,JPO&INPIT |
