| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pulley device that improves the surface accuracy of a tool-hooking part of a sleeve and also shortens the processing time of the tool-hooking part, while reducing costs. <P>SOLUTION: In the one-way direction clutch built-in type pulley device 10, the cross-section shape of the tool-hooking part 11b is formed in an outer periphery shape of a figure defined by overlapping a hexagon and a circle one on top of another so that circular arcs having the same lengths protrude from each side of the hexagon. <P>COPYRIGHT: (C)2012,JPO&INPIT |
