| 摘要 |
The present invention relates to a connection structure and a connection method for a fire door not requiring a reinforcement and a connection member. The connection structure comprises front and rear panels facing each other, which are made of metal and formed into a rectangular shape; and is configured to connect the front and rear panels by bending top and bottom portions of the front and rear panels to overlap each other manyfold after bending and connecting sides of the front and rear panels. The connection method includes: forming a fold portion (13) at the top and bottom of the front panel (10) and a shoulder groove (23) at the top and bottom of the rear panel (20) after preparing the front and rear panels (10, 20); bending the fold portion (13) to be fixed at the shoulder groove (23) after overlapping the front and rear panels (10, 20) manyfold, whereby a separate reinforcement and connection member are not required for the fire door connection and painting work can be easier. Therefore, a separate reinforcement and connection member are not required for the fire door connection structure and painting work can be easier for workers. |
