| 摘要 |
PURPOSE: A canopy structure is provided to prevent winkles on a plastic roof by improving the combining structure of a roof panel. CONSTITUTION: A canopy structure comprises a plurality of frames(20), a roof panel(30) and a cover(40). The plurality of frames is made of metal. The plurality of frames is arranged in a row. The roof panel is fixed to the frame. The roof panel is made of plastic material and swells or contracts according to the change of an outer temperature. The cover is arranged to support the upper surface of the roof panel. |
