| 摘要 |
The door panels are connected to one another along their edge parts, and at least one of them (4) works movably in conjunction with the upper frame part formed as a rail when the panel is folded towards the open or closed position. The rail (2) is formed as a right-angled holed profile, with a longitudinal slot (2a) facing the door panel. Each panel top (4b') of its edge part (4b) works with a component (6) extending through the slot (2a) and inserting in the rail. This component has wheels (10, 12, 13) which run longitudinally adjacent to the slot on surfaces (2c) orientated on the inside of the rail. - Further wheels (14) run along inner counterposed surfaces, forming a right angle with the running surfaces adjacent to the slot. |
