Patent ID: 7575390

Claim:
A coupling device for connecting a first member with a first hole to a second member with a second hole, comprising: a clip including a flange part, a shaft part with an encircling groove projecting from an upper surface of the flange part to be inserted into the first hole, and a locking leg projecting from a lower side of said flange part to be inserted into the second hole, said flange part projecting laterally outwardly from the shaft part and being integrally formed with the shaft part and the locking leg as one unit, and a cap capable of coupling with the shaft part through said encircling groove, said cap comprising a coupling part for coupling with said encircling groove on an inner side, and having a shape for covering said shaft part and first hole so as to be nearly unobservable when installed on said shaft part, wherein said cap has a semicircular shape, and includes an upper wall less than a full circle, a perimeter wall covering a periphery of the upper wall, and an inner wall situated under the upper wall and having a guide groove and a main hole communicating with the guide groove, said main hole having an inner diameter greater than a width of the guide groove, said perimeter wall extending downwardly from the periphery of the upper wall beyond the inner wall to cover three sides of the cap so that when the cap is assembled with the shaft part, the perimeter wall extends partly along an outer periphery of the flange.