| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a coupling device of a steering device and a coupling structure of a rotary member and a universal joint which can improve a contact state between the shaft-shaped rotary member and a yoke of the universal joint, and suppress the abrasion of a serration part.SOLUTION: A coupling device 6 of a steering device 1 comprises: a first universal joint 7 having a first yoke 61 coupled with an end part of a pinion shaft 50; and a middle shaft 60 coupled with the pinion shaft 50 through the first universal joint 7. The first yoke 61 comprises: an engagement part 611 in which an engagement hole 610 to be engaged with the pinion shaft 50 and first and second slits 611c, 611care formed; an enclosure member 65 disposed so as to surround the engagement part 611; and a bolt 66 for pressing a pressed part 611d between the first and second slits 611c, 611cin the engagement part 611, which is attached to the enclosure member 65. The enclosure member 65 presses the engagement part 611 from the opposite side of the bolt 66 by a reaction force of the pressing force of the bolt 66.</p> |
