Heavy-duty hoist chain
A chain has interconnected links each formed by at least one endlessly and continuously circularly woven sheath of tubular shape and circular cross section made of plastic warp yarns and plastic weft yarns surrounding a core. These plastic warp and weft yarns are made of filaments of high tensile strength with a fineness-related maximum tensile strength of at least 5 cN/dtex.
1. A chain comprised of interconnected links each formed by at least one endlessly and continuously circularly woven sheath of tubular shape and circular cross section made of plastic warp yarns and plastic weft yarns surrounding a core, the plastic warp and weft yarns being made of filaments of high tensile strength with a fineness-related maximum tensile strength of at least 5 cN/dtex.
2. The chain according to claim 1 , wherein the plastic warp and weft yarns are multifilament yarns made of plastic filaments.
3. The chain according to claim 1 , wherein the plastic warp and weft yarns are formed from thermoplastics based on polyethylene, polyamide, polyethylene terephthalate, or polypropylene.
4. The chain according to claim 1 , wherein the plastic warp and weft yarns are made from an ultra-high molecular weight thermoplastic polyolefin.
5. The chain according to claim 1 , wherein a fineness of the plastic warp and weft yarns is at least 20 dtex.
6. The chain according to claim 1 , wherein ends of an outer layer of the sheath are braided in a direction of lay.
7. The chain according to claim 1 , wherein the links have a tensile or breaking strength of at least 1 kN.
8. The chain according to claim 1 , wherein the links interlock directly or are coupled to one another by connectors.
9. A method comprising providing the chain according to claim 1 for storing, securing, lifting, and handling cargo and vehicles.