Core-Sheath Rope Mechanical Interlocking
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Solution Overview
Problem
Existing core-sheath ropes suffer from poor connection stability between the core and sheath, leading to relative displacement, uneven load distribution, and potential cracking, with existing solutions like adhesives or additional threads either failing to provide durable stability or stiffening the rope, and the core having low dimensional stability.
Innovation Solution
The core-sheath rope design incorporates standing threads braided into the inner sheath, with bridge threads at thread change points to enhance integration and connection, and varying thread properties like color and fineness to facilitate better load distribution and knotting, while maintaining flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive bonding is used to prevent core-sheath displacement, then connection stability is improved, but the rope becomes stiff and difficult to knot
Solution Approach 1:
The patent replaces chemical adhesive bonding with a mechanical interlocking system. Threads from the core are individually woven into the hollow braid structure of the sheath, creating a mechanical connection that prevents displacement without requiring adhesives. This mechanical integration maintains flexibility and knotting ability while ensuring connection stability.
2Reliability
If cross threads are added to connect core and sheath, then connection stability is improved, but device complexity increases
Solution Approach 1:
The patent merges the core and sheath structures by integrating core threads directly into the sheath's hollow braid. Instead of adding separate cross threads as a distinct component, the core threads become part of the sheath's编织 structure through individual weaving, creating a unified composite structure that improves connection stability without adding separate complex elements.
3Strength
If core strands are encased together by the sheath, then structural integrity is improved, but force transmission to individual strands is insufficient
Solution Approach 1:
The patent segments the core-strand integration approach by individually weaving each core thread into the sheath rather than encasing the entire core bundle together. This segmentation allows each core thread to be independently connected to the sheath, ensuring that force is transmitted effectively to each individual strand while maintaining the overall structural integrity of the composite rope.
Data Source
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AI summary
The present invention relates to a core-sheath rope (1) comprising a textile core (2) having one or more filler threads (21-28) extending in the longitudinal direction of the rope, an outer sheath (3) in the form of a hollow braid, and an inner sheath (4), surrounding the core (2), in the form of a hollow braid. The rope according to the invention is characterized in that at least a part of the filler threads of the core (21-26) is woven individually into the hollow braid (41, 42) of the inner sheath (4).