| 摘要 |
<p>A barrier is formed from at least one elongate rail and at least one vertical upright member. The elongate rail includes a web and a pair of opposed side walls which extend from the web to define a rail channel. Each upright member includes an aperture formed therein. In one implementation, a pin extending from a clip is inserted into the aperture, and the upright member, with the clip, is at least partially situated within the rail channel, wherein the clip is welded to an inside surface of the rail channel. In another implementation, a pin is inserted through the aperture, and the upright member, with the pin, is at least partially situated within the rail channel, wherein opposed ends of the pin are welded to an inside surface of the opposed side walls of the rail channel. The pin and aperture form a pivot point allowing the upright member to rotate with respect to the elongate rail. In a fence implementation, this allows the barrier to be racked in order to follow undulating terrain.</p> |
