| 摘要 |
PURPOSE: To accomplish meshing without any backlash in a toothed shaft profile by cutting a nipper type slit in an intermediate bush end and spreading it radially when it is pressed to a return stopper. CONSTITUTION: An expansion leg 29 is inserted into a gap between teeth in an outside face toothed shaft profile 34 in a rotary shaft terminal end 12' until it is brought tight contact with adjacent tooth side faces without any backlash. At the same time, in this process, a flange end of a bush terminal end 26" with a slit is pressed to a return stopper 44 placed on a rotary shaft 12, and compression force in this process beats a resistant force F1 , which is divided into a horizontal constituent and a vertical constituent. Then, a distance (a) between a working point of the resistant force F1 and the outer circumference of the rotary shaft 21 generates rotation moment, and according to this action, the expansion leg 27 is bent outward. Consequently, an outside face toothed shaft profile 28 part of an intermediate bush 26 touching the expansion leg 27 is pressed into an inside face toothed shaft profile 30 in a shaft end 10' so as to be tightly meshed without any backlash. |
