| 主权项 |
1. A multi-piece snap-in fastener adapted to adjoin a surface element to a backing panel, the fastener comprising:
a single piece docking base of tray-like construction adapted for adhesive bonding connection to one side of the surface element, the docking base including a pair of opposing lateral sidewalls disposed in raised relation adjacent an interior surface, the interior surface defining a depressed interior portion of the docking base extending in spanning relation between the lateral sidewalls, the lateral sidewalls each including at least one inboard protuberance element projecting in overlying relation to the interior surface, wherein the docking base further includes a pair of opposing end wall elements, at feast portions of said end wall elements occupying positions in the width dimension of the docking base inboard from said inboard protuberance elements, the lateral sidewalls and end wall elements cooperatively defining a discontinuous raised perimeter disposed in raised relation about said interior surface; and a displaceable clip head including at least one male projection element extending outwardly from one side of a support platform, the male projection element being adapted for snap fit insertion through an acceptance opening in the backing panel, the support platform being configured for press fit insertion into the docking base in nesting relation between the lateral sidewalls, the support platform including outboard protuberance elements projecting outwardly from lateral sides of the support platform such that during insertion of the support platform between the lateral sidewalls, the outboard protuberance elements pass over said inboard protuberance elements and the lateral sidewalls flex outwardly and rebound such that the outboard protuberance elements are disposed in underlapping relation to opposing said inboard protuberance elements projecting from the lateral sidewalls. |
