| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate the assembling of a shaft having a major diameter key lock collar by providing a protruding part on either one of a first shaft and a second shaft, providing a recessed part to be slid and engaged with the protruding part in connection on the other shaft, and also providing a means for regulating the sliding resistance between the protruding part and the recessed part. SOLUTION: A female serration part 20a as recessed part is formed on the lower end inside of an input shaft 20. On the other hand, a male serration part 23a as protruding part is formed on the upper end outside of a sensor shaft 23. Further, a retainer ring 25 having a circumferentially partially cut ring shape and formed of spring steel is arranged on the outer circumference of the input shaft 20. According to this structure, since the sensor shaft 23 can be easily connected to the input shaft 20 after the sensor shaft 23 as the first shaft is inserted to a lower housing, a large-sized key lock collar can be mounted on the circumference of the input shaft 20.</p> |
