Cable Management System Using Conical Retraction Path

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Solution Overview

Problem

Existing retail display systems for electronic devices face challenges with tether management, including tangling, distortion, and incomplete retraction due to the coil diameter of curly-Q cords, which affects wear and retraction efficiency.

Innovation Solution

A cable management system featuring an elastically stretchable cable assembly housed in a coaxial tubular structure with a spring-loaded shuttle mechanism and an in-line swivel to minimize torsional strains and ensure complete retraction, combined with a mounting member for secure attachment and electrical coupling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a curly-Q cord is used for tethering, then the cord can retract and extend, but the coil diameter creates a larger footprint making it difficult for the cord to fully retract through the opening

Engineering Contradiction:
Improvecable retractionVSAvoidcoil footprint
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The patent transitions from a two-dimensional planar retraction path to a three-dimensional conical storage volume. The cord is guided to retract along a conical path defined by the frustoconical surface, allowing it to occupy a tapered volume that minimizes the horizontal footprint while enabling complete retraction through the opening.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The frustoconical surface acts as an intermediary guide between the cord and the opening. This intermediate structure directs the cord's retraction path, preventing it from forming a large horizontal coil while ensuring it fully retracts into the housing through the opening.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Area of stationary object

If the opening size is reduced to match the cord diameter, then the footprint is minimized, but individual coils catch on the opening's edge preventing full retraction

Engineering Contradiction:
Improveopening areaVSAvoidretraction completeness
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

Instead of reducing the opening to a minimal circular area, the patent uses the opening as the base of a three-dimensional conical volume. The frustoconical surface extends upward from the opening, creating a tapered path that guides the cord away from the opening edge, preventing coil catching while maintaining a compact overall structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If frequent handling occurs, then product swapping is facilitated, but tangling and distortions in the cord increase affecting cord wear and retraction ability

Engineering Contradiction:
Improveproduct swappingVSAvoidcord integrity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The frustoconical surface provides a self-g guiding mechanism that automatically directs the cord along a controlled path during both extension and retraction. This passive geometric constraint prevents tangling and distortion without requiring active control, accommodating frequent product swapping while protecting cord integrity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The conical geometry is pre-configured to anticipate and prevent tangling before it occurs. By providing a guided path from the outset, the system prevents distortions that would otherwise accumulate with frequent handling, maintaining cord integrity over time.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system effectively manages cable tension and retraction, reducing wear and tangling while ensuring the cable fully returns to its housing, enhancing durability and display efficiency.

Implementation Method 1

A spring is received in this space and biased to resist or oppose inward sliding movement of the shuttle by riding against a portion of the shuttle that extends through the slits into the cylindrical space.

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

When the cable assembly is pulled in tension, it likewise pulls the shuttle inwardly—further into the housing's inner tubular part. When this happens, the elastically stretchable portion of the first cable assembly (e.g., the coiled portion of the curly-Q cord, if used) travels with the shuttle until the shuttle reaches the end its path of travel.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUSRE47089E1Cable management systems for product display
Publication Date: 2018.10.16 MOBILE TECH INC
  • USRE47089E1 patent drawing
  • USRE47089E1 patent drawing
  • USRE47089E1 patent drawing

AI summary

A cable retraction mechanism for displaying merchandise mounted on a display post in a retail location. The cable retraction mechanism includes a cable assembly having a coiled or equivalent elastically stretchable section. The mechanism also includes a coaxial housing that is connected to a portion of the cable assembly. The reciprocating motion or action of the shuttle within the housing facilitates extension and retraction of the cable assembly in a manner that is independent of the coiled section.