| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a frame allowing to easily put a rainproof sheet on a freight car and to remove the same. SOLUTION: 1 and 2 are attached on an angle bar supporting a guard frame. 3 and 5 to be a ridge material are fastened on a two-by-four method material 4 available on the market with screws. 6 and 7 are fastened on a two-by-four method material 4 to form a bundle receiving a ridge. A frame (figure 3) is completed by inserting the ridge material into parts of 2 and 6 and a gable shape (figure 4) for good water drain can be formed by putting the rainproof sheet on the same.</p> |
