| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a device which eliminates a need of a screw cutting operation, which abolishes a spacer and which can adjust the height of a guide post component by a method wherein a protrusion part is formed on the inner circumferential face of a screw-part insertion hole at an adjusting nut molded with an elastic member. SOLUTION: A rose-shaped protrusion part 14c is formed on the inner circumferential face of an insertion hole 14b into which a screw part 12a of a shaft 12 is inserted on a resin adjusting nut 14. When the rose-shaped protrusion part 14c is assembled and adjusted, the adjusting nut 14 is turned with reference to the shaft 12, a screw is formed according to the screw shape of the screw part 12a of the shaft 12. In addition, a straight part 12b whose diameter is smaller than that of the screw part 12a is formed at the upper part of the screw part 12a of the shaft 12, and a guide hole 14d which is guided to the straight part 12b is made in the upper part of the insertion hole 14b in the adjusting nut 14. A guide post component 11 is inserted into the shaft 12, the adjusting nut 14 is turned against the urging force of a spring 13, and the height position of the guide post component can be adjusted and fixed.</p> |
