| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a joint structure capable of shortening its joint part while securing its reference strength. <P>SOLUTION: A distance BL4 from a cylinder side joint surface 23 to a cylinder side key groove 26 nearest to the cylinder side joint surface 23 is set so that tensile strain which is generated in the cylinder side key groove 26 farthest from the cylinder side joint surface 23 when external force operates on an axial joint part 10 and a cylindrical joint part 20 is greater than tensile strain which is generated in an axial side key groove 16 nearest to an axial side joint surface 13 when external force operates on the axial joint part 10 and the cylindrical joint part 20. <P>COPYRIGHT: (C)2012,JPO&INPIT |
