| 摘要 |
PCT No. PCT/DE86/00290 Sec. 371 Date Mar. 3, 1987 Sec. 102(e) Date Mar. 3, 1987 PCT Filed Jul. 16, 1986 PCT Pub. No. WO87/00496 PCT Pub. Date Jan. 29, 1987.An articulated element of a track comprising two parallel faces consisting of two superimposed parts with holes for articulation bolts. The contact sides of the articulation parts have teeth which mesh with one another and move parallel to the pivoting plane. To lengthen the articulation element, the teeth move transversely and are undercut in such a way that under the effect of a tractional force they bring together the parts of the faces of the articulation elements. To facilitate the manufacture of this articulation element and to reduce its cost, the flanks (9,10) of the teeth (5) and the toothspaces (1) are straight over the whole of their length and end freely on their longitudinal side (7 and 8). The first flanks (9) of the teeth 51 and of the toothspaces (6), which are subjected to tensile forces during rotation of the track are set at right angles to the longitudinal direction of the track articulation, whereas the other flanks (10) of the teeth (5) and toothspaces (6) which are not subjected to tensile forces, are arranged at an acute angle in relation to one another in the longitudinal direction.
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