Under-Cabinet Mobile Device Charging with Automatic Cable Rewind

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Solution Overview

Problem

Existing systems for charging and storing mobile broadband devices fail to provide continuous charging while maintaining visual accessibility and aesthetics, often resulting in cluttered spaces due to tangled cords and invasive designs.

Innovation Solution

A system for under-cabinet mounting of mobile broadband devices with an adjustable shelf and automatic cable rewind mechanism, allowing devices to be charged and used while maintaining visual access, with cord management that keeps cables untangled and out of sight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If devices are placed on countertops for charging and use, then visual accessibility is improved, but space clutter increases

Engineering Contradiction:
Improvevisual accessibilityVSAvoidcountertop space
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The system transitions the charging location from the horizontal countertop surface to the vertical under-cabinet space. By utilizing the previously unused vertical dimension beneath upper cabinets, the system provides device placement and charging functionality without occupying valuable countertop area, thereby resolving the contradiction between accessibility and space utilization.

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

Solution Approach 2:

The charging system is nested within the existing cabinet structure, specifically utilizing the space under upper cabinets. This nesting approach allows the charging station to be housed within an existing architectural element, providing device accessibility while maintaining a compact footprint that does not encroach on functional countertop space.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If charging cords are extended for device use, then device accessibility is improved, but cord tangling and aesthetic issues worsen

Engineering Contradiction:
Improvedevice accessibilityVSAvoidcord organization
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The system employs a dynamic cord management mechanism featuring a spring-loaded retractable reel that automatically adjusts cable length. As devices are moved for use, the cord extends to provide necessary reach; when devices return to the charging station, the cord automatically retracts and winds onto the reel. This dynamic adjustment prevents cord tangling and maintains aesthetic appearance throughout device operation cycles.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cord management system operates autonomously through a spring-loaded reel mechanism that automatically winds and stores the charging cable when not in use. This self-service cord retraction eliminates the need for manual cord management by users, preventing tangling and maintaining neat appearance without requiring user intervention.

Inventive Principle:
Principle #25Self-service

3Shape

If devices are stored in drawers or carrying cases for charging, then cord management is improved, but visual accessibility and space utilization worsen

Engineering Contradiction:
Improvecord organizationVSAvoidvisual accessibility
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The system abandons the traditional horizontal drawer or case storage approach in favor of utilizing the vertical under-cabinet dimension. This dimensional shift allows devices to remain visible and accessible on an open shelf while charging, eliminating the need for enclosing devices in drawers or carrying cases that would block visual access.

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

Solution Approach 2:

The under-cabinet shelf assembly serves multiple functions simultaneously: it provides device placement, visual display, charging capability, and cord management in a single integrated structure. This multi-functionality eliminates the need for separate storage containers like drawers or cases, as the shelf itself performs all necessary functions while maintaining device visibility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Shape

If furniture is modified to include charging drawers, then cord management is improved, but space invasion and aesthetic flexibility worsen

Engineering Contradiction:
Improvecord organizationVSAvoidspace adaptability
Core Design Contradiction:
ShapeVSAdaptability or versatility

Solution Approach 1:

The system separates cord management functionality from the main shelf structure by using an independent retractable reel mechanism. This segmentation allows the cord management component to operate autonomously within the under-cabinet space without requiring modification of furniture structures, thereby maintaining adaptability to various kitchen layouts and preserving aesthetic flexibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The retractable cord reel acts as an intermediary mechanism that bridges the power source and the mobile device without requiring direct integration into furniture structures. This intermediary approach allows cord management to function independently of any specific furniture modification, enabling the system to adapt to different kitchen configurations and maintain aesthetic versatility.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 allows for continuous charging and use of mobile broadband devices with full visual access, reduces clutter, and manages cords effectively, accommodating multiple devices and varying dimensions, while being aesthetically pleasing and adaptable to different spaces.

Implementation Method 1

a spring-loaded reel that automatically winds and stores the charging cable

Methodology Applied
Scientific EffectSpring mechanism: Spring

Data Source

PatentUS10554033B2Under cabinet mobile broadband device charging and use system
Publication Date: 2020.02.04 GIRDZIS TIMOTHY J
  • US10554033B2 patent drawing
  • US10554033B2 patent drawing
  • US10554033B2 patent drawing

AI summary

The present invention provides a system for the charging and use of mobile broadband devices, keeping the devices visually accessible while avoiding infringement of useful space. A user of the system has full operation of their mobile broadband devices where under cabinet mounted. The present invention makes use of a rewind assembly for the organization and use of the charging cable for mobile broadband devices which provides for a winding of the charging cable onto an automatic rewind.