Elevator Flat Cable Patent Features Multi-Stage Tension and Pressure-Resistant Structure
A patent (CN104616761B) describes an elevator flat cable with a multi-stage tension and pressure-resistant structure to protect conductors from external stress and enhance durability.
Key Innovations:
Flexible Core: Each cable core includes multiple conducting wires stranded around a flexible core with an axial through-hole. This reduces weight and provides cushioning space for deformation.
Polyester Fiber Enhancement Layer: A lapping layer and polyester fiber enhancement layer protect the cable core and improve its strength.
Reinforcing Cores: Two first reinforcing cores are located at both sides of the cable bundle for enhanced side protection. Multiple second reinforcing cores are positioned between adjacent cables.
Tensile Strength Differentiation: The tensile strength of the first reinforcing cores is greater than that of the second reinforcing cores to protect the cable sides from tearing.
The structure ensures uniform stress distribution, making the cable difficult to stretch or break, with a long service life and stable signal transmission.
