| 摘要 |
The system and method of the present invention includes an upper frame mounted on a support structure, such as a truck, building, or billboard, three adjustable frame assemblies mounted on the support structure below the upper frame, and sheet material having an upper sheet tab inserted into the upper frame and lower, right, and left sheet tabs inserted into the adjustable frame assemblies. The frame assemblies can be adjusted to vary the tension in the sheet material between the upper frame and the adjustable frame assemblies. The method includes the steps of inserting the upper sheet tab into the upper frame, inserting the right, left, and lower sheet tabs into the adjustable frame assemblies, and adjusting the adjustable frame assemblies so that the sheet material is pulled taut between the upper frame and the adjustable frame assemblies. |
