| 摘要 |
The connecting flange is to be fitted at the end of a duct portion. In the four sheet-metal angle profiles (18) thereof, four corner angles (1) of flat design are inserted by means of their legs (13, 14) and locked in. Each angle profile (18) has at least one web (9) and at least one slot (4, 6) is provided in the respective leg (13 and 14, respectively) of the corner angle (1) assigned to the angle profile (18). The corner angle (1) is pushed onto the angle profile (18) such that the web (9) of the angle profile (18) is located in the slot (4, 6) of the corner angle (1). This results in a connecting flange which, owing to savings in material, can be produced inexpensively but, nevertheless, such that it does not warp. <IMAGE> |
