| 摘要 |
FIELD: construction.SUBSTANCE: invention relates to a plastic dowel (6) for fixation of a rail with a sleeper (1), in particular, a concrete sleeper, with a substantially cylindrical body of the dowel, having at the side of the head a rod section (7), preferably adjoining the collar (8) of the dowel at the bottom, and at its extension - external thread (9), with the help of which it is screwed out from the sleeper or screwed into it, and equipped below the rod section (7) with internal thread (10) to accept a sleeper screw (4; 4a, 4b). The rod section (7) inside, in a transition to the internal thread (10), has a spiral-like ledge (13), reducing the internal diameter on the part of the length of the rod section (7) and stretching at least along a part of the circumference.EFFECT: even transfer of forces at a sleeper, simplicity of assembly and replaceability, reduced danger of cracking and besides, various uses.9 cl, 12 dwg |
