| 摘要 |
A method of manufacturing a U-section guide rail (3) for slidably receiving the edges (2) of a generally vertically movable shutter or door-like member (1), the guide rail including an engagement element (4) for coaction with a latching mechanism (5) intended for connection to a shutter hoist element, e.g. to a hoist line or a hoist belt, wherein the latching mechanism is adapted to be moved into and out of latching engagement with the engagement element (4) when the tension force acting on the latching mechanism (5) is removed therefrom or when a tension force is applied thereto, and wherein the method comprises the steps of extruding a U-section guide rail (3) with an undercut groove (6, 8) in its bottom wall; extruding a profiled element (15) having a tooth-like configuration in cross-section; separating from the profiled element (15) transversely thereto individual sections (13) that have a width which enables the sections to fit into the undercut groove (6, 8); and inserting the thus formed individual sections (13) into the undercut groove (6, 8) sequentially such as to form a continuous tooth-like configuration that faces towards an edge (2) of the movable shutter. <IMAGE> |
