| 摘要 |
The threshold is let into the floor below the leaves (7), on which are holders (6) with sliding components (5) working in guide grooves (3). It is of modular construction, with profiled guides (1) parallel to the leaves and bearing against each other via their lengthwise sides, together with distance-pieces (2) and spacers (4). These are pref. in frictional contact with each other. The guides can be of conventional C- or L-section, or of sheet-metal bent into shape, two opposite ones together forming the groove. The distance-pieces can be situated only at the screwed joints, or can extend for the entire threshold length, and they can slope towards one side of the door frame. <IMAGE> |
