Flexible Cable Guide Link Assembly to Prevent Hinged Tower Cable Chafing

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Solution Overview

Problem

Cables extending across hinged towers face chaffing issues due to the hinge mechanism, which can lead to damage and maintenance challenges when servicing equipment mounted on these towers.

Innovation Solution

A flexible cable guide link assembly made of non-metallic material, such as Fiberglass Reinforced nylon, is attached across the hinge axis to protect cables from chaffing by articulating and routing them through the hinge assembly, using a design that includes inner and outer gussets to secure the assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cables are routed directly across the hinge assembly, then the tower structure remains simple and accessible, but the cables are subjected to chaffing and damage from the hinge mechanism

Engineering Contradiction:
Improvecable integrityVSAvoidcable routing structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A flexible cable guide link assembly serves as an intermediary component between the hinge assembly and the cables. This guide link protects the cables from direct contact with the hinge mechanism while maintaining the necessary articulation movement, thus preventing cable chaffing without requiring complete redesign of the tower structure

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The cable guide link is constructed as a flexible assembly that can bend and articulate along with the tower sections. This flexibility allows the guide link to accommodate the movement of the hinge while continuously protecting the cables routed through it, preventing chaffing during articulation

Inventive Principle:
Principle #30Flexible shells and thin films

2Ease of operation

If the tower sections are hinged to allow articulation for equipment access, then equipment servicing becomes easier, but cables extending across the hinge are exposed to chaffing and wear

Engineering Contradiction:
Improveequipment accessibilityVSAvoidcable chaffing
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The flexible cable guide link assembly acts as a protective intermediary that enables the hinge articulation needed for equipment access while simultaneously shielding the cables from the harmful chaffing effects of the hinge mechanism

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The cable guide link is designed as a dynamic, flexible component that moves with the hinge articulation. This allows the tower to maintain its ease of operation for equipment servicing while the guide link continuously adapts its position to protect cables during movement

Inventive Principle:
Principle #15Dynamics

3Reliability

If a rigid cable protection structure is used across the hinge, then cable protection is maximized, but the structure loses flexibility during articulation

Engineering Contradiction:
Improvecable protectionVSAvoidarticulation flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The cable guide link employs a flexible construction that can bend and articulate through the hinge range of motion. This flexibility ensures the structure adapts to articulation movements while the guide link maintains continuous cable protection throughout the motion range

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The cable guide link transitions from a static protection structure to a dynamic component that moves with the hinge articulation. This dynamic behavior allows the structure to maintain both cable protection and articulation flexibility simultaneously

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12421748B2Flexible cable guide link assemlby for a hinged tower
Publication Date: 2025.09.23 GREAT PLAINS TOWER PROD LLC
  • US12421748B2 patent drawing
  • US12421748B2 patent drawing
  • US12421748B2 patent drawing

AI summary

A tower includes a base section; a tower section hinged to the base section; a hinge assembly between the base section and the tower section, the hinge assembly defines a hinge axis about which the tower section hinges relative to the base section; and a flexible cable guide link assembly attached to the tower section such that the flexible cable guide link assembly extends across the hinge axis and into the base section.