Abstract: The present disclosure relates to a link chain for use underground in mining. The link chain is produced from a steel material and has horizontal links and vertical links. Each horizontal link and each vertical link have sides running parallel to each other and connected to one another at the ends by means of rounded portions. Each side has a smaller cross-sectional area than the cross-sectional area of each rounded portion. The cross-sectional area of the sides of the horizontal link has a smaller width, with the same or smaller height, than the cross-sectional area of the rounded portion, and the cross-sectional area of the sides of the vertical link has a smaller height, with the same or smaller width, than the cross-sectional area of the rounded portion.

Abstract: The invention relates to a plowing device having a plow chain which is guided inside a channel (2) having an inner radius (A1) and the chain links of which each have chain bends (5) and chain limbs (6) connecting the latter. In cross section, the chain limbs (6) each have an outside radius that extends along a chord length, wherein the inner radius (A1) of the channel (2) and the outer radius of the chain limbs (6) have a ratio of 1:0.8 to 1:1.2 in relation to one another.

Abstract: The invention relates to a plowing device having a plow chain which is guided inside a channel (2) having an inner radius (A1) and the chain links of which each have chain bends (5) and chain limbs (6) connecting the latter. In cross section, the chain limbs (6) each have an outside radius that extends along a chord length, wherein the inner radius (A1) of the channel (2) and the outer radius of the chain limbs (6) have a ratio of 1:0.8 to 1:1.2 in relation to one another.