| 摘要 |
PROBLEM TO BE SOLVED: To provide a fastener provided with an anti-loosening function only by two components of a processed component of a male screw and a processed component of a female screw.SOLUTION: A fastener is composed of a male body 10 and a female body 20, the male body 10 includes a male body base portion 13, and a male body shaft portion 14 vertically disposed on an inner surface of the male body base portion 13 and having a male screw 15, and the female body 20 is composed of a female body base portion 23 and a female body shaft portion 24 having a diameter larger than the male body shaft portion 14. A shaft hole 25 is formed on an outer surface 22 of the female body base portion 23 while penetrating through the female body shaft portion 24, a slit groove 26 is formed to divide a part from the outer surface 22 of the female body base portion 23 to a part of the female body shaft portion 24 along an axial direction of the shaft hole 25, and a female screw 28 having a diameter narrower than a diameter of the male screw 15 of the male body shaft portion 14 is formed on a part of the shaft hole 25 by a depth of the split groove 26. A width of the female body base portion 23 is expanded, and the force to bring the female screw 28 into pressure-contact with the male screw 15 acts, when the male screw 15 and the female screw 28 are engaged with each other.SELECTED DRAWING: Figure 1 |
