摘要 |
PROBLEM TO BE SOLVED: To facilitate tilting operation by arranging a bar member in the tilting direction of a column shaft, and constituting an oblong hole formed at the upper part of the bar member, and a tilting bracket fixed to a column shaft, in such a way as to be selectively put in a fixed state and a fixing released state by the operation of a locking lever. SOLUTION: When a locking lever 13 in a tilting device 1 is operated into a lock position (a), a protruding key part 29 protrusively provided on the end face side of a base boss part 14 of the lever 13 is not fitted into an oblong hole part 9 of a bar member 8, so that the top face of the protruding key part 29 is brought into pressure contact with the relative outer end face of the bar member 8 by the spring force of a disc spring 17. Large frictional force therefore acts between the relative opposed faces of the bar member 8 and a tilting bracket 12, and a column shaft 6 is locked into a required tilt angle position. When the locking lever 13 is then operated into an unlock position on the rear side to fit the protruding key part 29 into the inner width edge part of the oblong hole 9 of the bar member 8, the column shaft 6 can be tilted and adjusted. |