Patent ID: 7677850

Claim:
A plastic clip comprising a pin, and a bush having a hollow portion formed to receive the pin therein, wherein the pin has a flange and has a shank adapted to be received into the hollow portion of the bush in a non-fastened position, causing no expansion in an outer diameter of the bush, and then to be moved from the non-fastened position, to a fastened position causing an expansion in the outer diameter of the bush, by pushing the pin in an axial direction of the bush; wherein the bush has a flange and has a generally annular-shaped bush body having the hollow portion formed to receive the pin shank therein; wherein the pin and the bush are adapted to be pre-assembled to one another with the pin shank housed in the bush body; wherein the bush body and the bush flange have an opening in a peripheral wall thereof and adapted to receive therein the pin shank in a direction orthogonal to an axial direction of the bush body; wherein a thin-walled portion is formed in the bush body at a position opposed to the opening in a circumferential direction of the bush body; wherein the bush body has two rigid semi cylindrical portions on opposite sides of the thin-walled portion in the circumferential direction, respectively; wherein two semicircular discs at first ends of the semi cylindrical portions, respectively, serve as the bush flange; wherein the pin shank has a rod portion adapted to be housed in the hollow portion of the bush body and held within the bush body after the pin is pre-assembled to the bush, and a protruding portion is formed on an outer peripheral surface of the rod portion so as to extend in a longitudinal direction of the rod portion, and to protrude in a radially outward direction of the bush body to close the opening when the pin is pre-assembled to the bush, the protruding portion including a narrow region near a distal end of the pin shank remote from the pin flange and having a first, relatively small circumferential length, and adapted to close the opening in such a manner as to cause no expansion in an outer diameter of the bush body when the pin is in the non-fastened position, and a wide region adjacent to the bush flange and having a second, relatively-large circumferential length, and adapted to close the opening when the outer diameter of the bush body is expanded with the pin in the fastened position.