Patent ID: 8511631

Claim:
An assembling structure comprising: a mounting member including: a mounting seat; and a clip including: a head portion that is to be inserted into the mounting seat; and a leg portion that extends from one surface of the head portion and that is to be inserted into a mounted-side member, wherein the head portion includes; a neck portion that is to be inserted into the mounting seat; a first flange portion that outwardly protrudes from an upper-side circumference of the neck portion so that a lower face thereof abuts the mounting seat; and a second flange portion that outwardly protrudes from a lower-side circumference of the neck portion so that an upper face thereof abuts the mounting seat, wherein the mounting seat includes: an enlarged-diameter hole that has an inner diameter larger than an outer diameter of the neck portion; an introducing groove formed to communicate the enlarged-diameter hole with an outer peripheral of the mounting seat; and an inner projection that is formed such that portions of the inner projection disposed on opposite sides of a center axis of the enlarged-diameter hole downwardly protrude in an axial direction of the neck portion along a peripheral edge of the enlarged-diameter hole, wherein the upper face of the second flange portion includes: a first tapered face that radially-outwardly extends from the neck portion and is inclined such that portions of the first tapered face disposed on opposite sides of a center axis extending through the neck portion gradually extend toward the first flange portion as the first tapered face extends radially outward; a top portion that is continuous with the first tapered face and is closest to the first flange portion; and a second tapered face that radially-outwardly extends from the top portion and is inclined to gradually separate from the first flange portion, wherein the first tapered face abuts the inner projection in an assembled state in which the clip is assembled on the mounting seat, and wherein the inner projection includes a third tapered face inclined to gradually come close to the second flange portion along a radially inward direction.