| 摘要 |
1. A drawer withdrawal device provided with an external rail (1), which is fixedly fitted to a piece of furniture (44), a push rail (2), which is fitted laterally to the drawer (45), and a central rail (28), there being provided for synchronous control on the inside surfaces of the external rail (1) and of the push rail (2) respectively one rack (33, 34), which extends over the total length thereof and in which there engages bilaterally a single gear (37), which is mounted in the central zone of the central rail (28), and the external and push rails being furthermore designed in such a way that the longitudinal edges (50) of the central rail (28) project slidably therein, and there being provided stops (9, 10, 26, 27) for limiting the withdrawal path, characterised by the combination of the following features, namely to the effect that the racks (33, 34) are located in the central zone of the external rail (1) and the push rail (2), and that the two longitudinal edges (40, 41) of the external rail (1) and the longitudinal edges (42, 43) of the push rail (2) are formed so as to be U-shaped so that the free legs of the U-shaped edges are directed inwardly at a distance from and extending parallel to the rail inside surfaces, and that the central rail (28) is designed as a solid one-part body, whose longitudinal edges have strip-like lugs (50), which project slidably into the U-shaped edges (40 to 43) of the external rail (1) and the push rail (2), and that the stops for limiting the withdrawal path are formed by respectively two bolts (9, 10; 26, 27), which sit in the external rail (1) and the push rail (2) and which project from the inside surfaces of the external and push rails and engage in respectively two longitudinally extending grooves (29, 30) in the central rail (28), and that the grooves (29, 30) end a short distance from the faces of the central rail (28), and that the external rail (1) is provided with straps (11 to 14) which project outwardly from the longitudinal edges and comprise pins (15 to 18). |
