| 摘要 |
<p>A novel extrudable frame construction for use with top-hanging sign panels (11) in which the panel is fitted into the upper frame (12) by inserting an upper edge of the panel, provided with a rib (20), from the front at an angle to the plane of the frame and then moving the panel into the suspended condition in which the rib rests on a flange (14) provided within the upper frame. The use of a rearward rib (20) resting on a rear flange (14) provides significant advantages, as does the use of an upwardly projecting lip (21) of the flange. Box-sign forms of the frame are also described, as are devices and methods for assisting assembly/disassembly of frames, mounting/demounting of panels, restriction of undesired movement of panels within frames, and provision of an attractive front appearance to frames.</p> |
