HEIGHT ADJUSTING STRUCTURE OF SLIDING DOOR

PROBLEM TO BE SOLVED: To prevent the damage of a sliding door by spirally fitting a biting screw section with a crest edge to the outer circumference of a height adjusting member buried into the lower hole of the lower bar frame of the sliding door while forming a sliding head section at the front end of the height adjusting member. SOLUTION: A biting screw section 12 with a crest edge 12a is formed spirally to the outer circumference of a cylindrical rasp cut nut section 10, in which a female screw is formed to an inner circumferential edge. The bolt section 14 of a sliding rivet bolt 13 having a sliding head section 15 at a front end is screwed to the rasp cut nut section 10, and unified with adhesives, thus forming a height adjusting member T. When the height adjusting member T is clamped into a lower hole formed to the base of the lower bar frame of a sliding door by a driver, the crest edge bites into the inner circumferential surface of the lower hole and the biting screw section 12 is screwed into the lower hole, and the height adjusting member T is buried into the lower hole. When height is adjusted on a field, the driver is inserted into a driver groove formed to the sliding head section 15 and tuned reversely, and the sliding head section 15 is projected to a section lower than the base of the lower bar frame.