| 摘要 |
"Pre-frame" formwork for making door or window or similar placeholders in a wall, to be created by in-situ pouring of concrete, or prefabricated, and consisting of panels (2, 3, 4, 5) having dimensions corresponding to those of the placeholder and connected together at their ends by corner assembly elements (6, 7, 8, 9), characterized in that each of the latter is a one-piece component having two arms, (10, 11) of quadrilateral section, forming relative to each other a first angle corresponding to that of two adjacent panels (2, 3 - 3, 4 - 4, 5 - 5, 2) to be assembled and a second angle corresponding to a rake or batter to be given to these panels relative to the plane of the wall, in such a way as to create a slope and thus facilitate the subsequent striking of the "pre-frame" (1). |
