FIELD: instrument making.
SUBSTANCE: invention relates to link chains. Proposed link chain consists of separate, hooked one after the other, horizontal links and flat chain links arranged vertically. Flat chain vertical link features rounded-off sections jointing link shoulders together. Every aforesaid rounded-off section comprises a constant-diametre round-cross-section arc-like part. Cross section of aforesaid shoulders feature their shape approximating to semicircle. Flat chain vertical links feature, in the zone of shoulders, cross section area-to-cross section area on arc-like parts of rounded-off sections varying from 0.55 to 0.85. The flat chain vertical link height-to-rounded-off section diametre ratio varies from 2.4 to 2.1.
EFFECT: reduced height of vertical links at high load-carrying capacity.
12 cl, 10 dwg
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