| 摘要 |
PROBLEM TO BE SOLVED: To provide an anchor member for fastening which can be easily inserted into a mounting hole relating to a fixed member, such as a concrete skeleton, a resin material, and a light metal, or the like, without using a press jig, and which can be fixed to the mounting hole with small fastening torque without using the press jig or the like. SOLUTION: The anchor member for fastening comprises an anchor body having a shaft and a tapered portion, a nut screwed with the anchor body, and a crimping sleeve covering the tapered portion of the anchor body. The tapered portion has a large-diameter end having a diameter smaller than the external diameter of the shaft, and a small-diameter end having a diameter smaller than that of the large-diameter end and connected to the shaft, while the outer peripheral surface of the tapered portion is formed in an almost conical tapered surface. The crimping sleeve is provided with a crimping portion composing a tapered gib in cooperation with the tapered portion of the anchor body, and when the nut is fastened, the tapered gib acts, so that the tapered portion presses the crimping portion radially outward. As a result, the crimping portion is pressure-fixed to the inner peripheral surface of the mounting hole. COPYRIGHT: (C)2011,JPO&INPIT |
