Cable Hanger Gripping Structure for Variable-Diameter Fiber Cables
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Solution Overview
Problem
Existing cable hangers are inadequate for securing fiber optic cables due to their greater variety of diameters and increased weight, which results in higher load and stress, and are not suitable for coaxial cables with fewer diameters.
Innovation Solution
The design of a cable hanger with a base panel, arms, locking projections, and gripping members that spread apart to securely hold cables, featuring cantilevered or serpentine gripping members that provide a higher gripping force, and flexible configurations to accommodate various cable diameters, including fiber optic cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If traditional cable hangers with cantilevered tabs or fixed-pinned beams are used, then the structure is simple and easy to manufacture, but the gripping force is insufficient for heavy fiber optic cables
Solution Approach 1:
The hanger employs dynamic gripping members that can deflect and adapt to cable diameter variations. The gripping members are designed to flex under load and automatically adjust their gripping force, transitioning from a static structure to a dynamic system that responds to applied forces and cable dimensions.
Solution Approach 2:
The gripping members are designed with variable geometric parameters including different lengths, thicknesses, and deflection characteristics. By changing these parameters, the hanger can accommodate different cable diameters and weight classes, optimizing gripping force for each specific application without requiring multiple fixed designs.
2Adaptability or versatility
If cable hangers are designed for specific cable diameters, then the gripping force is optimized for that diameter, but the adaptability to various cable diameters (especially fiber optic cables) is reduced
Solution Approach 1:
The gripping members are designed to dynamically adapt to different cable diameters through elastic deflection. When a cable is inserted, the gripping members flex to conform to the cable's outer diameter, maintaining reliable contact and gripping force across a range of diameters without requiring precise pre-adjustment for each cable type.
Solution Approach 2:
The hanger is divided into multiple independent gripping members rather than a single rigid gripping structure. This segmentation allows each gripping member to independently deflect and adapt to the cable diameter, providing versatile accommodation while maintaining gripping reliability through the collective action of multiple flexible elements.
3Quantity of substance
If multiple cable hangers are stacked to secure more cables, then the cable capacity increases, but the load and stress on each hanger and the mounting structure increases
Solution Approach 1:
The dynamic gripping members distribute loads more effectively by flexing to match cable dimensions, optimizing force distribution across the contact surface. This reduces stress concentrations and allows for more efficient load bearing, enabling safer stacking of multiple hangers to increase cable capacity at each mounting point.
Data Source
AI summary
A cable hanger includes: a base panel having opposed ends; a pair of arms, each of the arms attached to a respective end of the base panel and having a free end; a pair of locking projections, each of the locking projections attached to a respective free end of the arms; and a pair of gripping members, each gripping member attached to a respective arm, each gripping member having opposed ends, wherein one of the ends of each gripping member is fixed to the arms and the other of the ends of each gripping member is fixed to the arm or to the base panel. The arms and locking projections are configured to spread apart to enable insertion of a cable between the arms, wherein the gripping projections engage and grip the cable, and wherein the locking projections are configured to be inserted into the aperture of the supporting structure.