| 摘要 |
PURPOSE: A pin with adjustable diameter is provided to minimize assembly error and reduce costs, by adjusting diameter of the coupling pin for coupling multiple part components. CONSTITUTION: A pin comprises a coupling pin member(10) shaped as a rod to be inserted into the hole formed at a part component, and which has a screw coupling portion(17) with a screw thread formed at the center of the coupling pin member, a tapered surface(15) formed at both sides of the screw coupling portion, and a plurality of gaps(19) formed in a lengthwise direction at the tapered surface; and a diameter adjustment member having a conical portion with a side contacting the tapered surface of the coupling pin member, a male screw portion formed at the conical portion to be coupled with the screw coupling portion, and a rotatable portion formed into a rod shape at the other side of the conical portion, and which rotates to permit the male screw portion to be screwed into the screw coupling portion. The diameter adjustment member pushes the tapered surface such that the diameter of the coupling pin member increases.
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