| 摘要 |
PROBLEM TO BE SOLVED: To suppress the looseness of the spline-fitting of an extensible shaft and also suppress sliding resistance. SOLUTION: On a countershaft 2 as this extensible shaft, the end part 14a of an inner shaft part 14 is inserted into a fitting hole 13b at the end part 13a of an outer shaft part 13 for spline fitting. An elastic deformation part 18 is formed on the outer shaft part 13 by local pressing, and the diameter reduced part 13e of the outer shaft part 13 corresponding to the elastic deformation part 18 is tightened by a generally annular tightening member 19. The contact engagement part 18b of the elastic deformation part 18 is engaged with the corresponding portion 14c of the inner shaft part 14 without radial looseness and allows the relative sliding of the inner shaft part 14. Since a clearance is left after spline-fitting at a part of the shaft in the circumferential direction, the sliding resistance can be suppressed. COPYRIGHT: (C)2005,JPO&NCIPI
|
