| 摘要 |
PCT No. PCT/CH80/00100 Sec. 371 Date May 4, 1981 Sec. 102(e) Date May 4, 1981 PCT Filed Aug. 29, 1980 PCT Pub. No. WO81/00732 PCT Pub. Date Mar. 19, 1981.Each road surface element (1) has a cut-out portion (3), which is delimited by means of section (4b) of a plate (4). The cut-out portion (3) is traversed by a bolt (6). A locking piece (2), which has two catches (26) on its lower side is inserted into the chamber formed by the cut-out portions of two adjacent elements and is then rotated so that the catches (26) come to rest beneath the bolts (6). The two elements are then locked together and forces are transmitted through the two locking portions and the catches (26) to the bolt (6) and thus from one element to the other. The upper surface of the locking piece (2) is level with the surface of the two elements. Application more particularly to the production of temporary road surfaces, for example, during road detours or for use in construction excavations. |
