Earphone Spiro-Device for Automatic Wire Retraction

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Solution Overview

Problem

Conventional earphones face issues with wire protection and storage, leading to potential breakage and inconvenience in carrying and storing, as the existing methods of winding and using a rubber band or rolling wire seat are not satisfactory.

Innovation Solution

An earphone spiro-device with a rolling axle, rotating element, and controlling element that allows the earphone wire to be rolled up within an electrical device, featuring a spiral trough for the wire and a holding element to manage the wire length, utilizing a motor or torsion spring for automatic winding and unwinding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the wire is left loose without protection, then the earphone is simple to use, but the wire is vulnerable to breakage and has short service life

Engineering Contradiction:
Improvewire service lifeVSAvoidwire protection structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The wire is nested within the electrical device body through a retractable mechanism. The wire extends from an outlet on the device housing and can be retracted back into the device, allowing the wire to be protected inside the device while remaining accessible when needed. This resolves the contradiction by providing protection without requiring external accessories or complex separate storage structures.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If the wire is wound around a rolling wire seat, then the wire collection is convenient, but the accessory is inconvenient for carrying and storing

Engineering Contradiction:
Improvewire collection convenienceVSAvoidexternal accessory structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The wire storage function is merged with the electrical device itself. Instead of using a separate rolling wire seat accessory, the device housing incorporates the wire storage capability directly. The wire extends from an outlet on the device and can be retracted back into the device body, combining the functions of the device and wire management into a single integrated unit. This eliminates the need for external accessories while maintaining ease of wire collection.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If the wire is wound outside the electrical device, then the earphone can be carried, but the appearance becomes inartistic and the inner cording may break

Engineering Contradiction:
ImproveportabilityVSAvoidinner electric cording durability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The wire is nested within the electrical device housing rather than being exposed externally. The wire extends from an outlet on the device when needed and can be retracted back into the device body for storage. This nesting approach protects the inner cording from breakage while maintaining portability, as the wire is safeguarded inside the device structure rather than being vulnerable when wound externally.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 earphone spiro-device effectively prevents wire breakage and enhances convenience by automatically collecting and storing the earphone wire within the electrical device, eliminating the need for external accessories and maintaining a compact appearance.

Implementation Method 1

The rotating element can be a torsion spring. The controlling element can be a button for releasing the rotating torsion of the torsion spring by pressing the button.

Methodology Applied
Scientific EffectTorsion spring: Torsion Spring

Data Source

PatentUS7801322B2Earphone spiro-device
Publication Date: 2010.09.21 INVECTEC APPLIANCES CORPORATION
  • US7801322B2 patent drawing
  • US7801322B2 patent drawing
  • US7801322B2 patent drawing

AI summary

An earphone spiro-device is used in an electrical device for rolling up the wire of the earphone. The earphone spiro-device includes a rolling axle, a rotating element and a controlling element. The surface of the rolling axle has a spiral trough for containing the wire of the earphone. The rotating element can drive the rolling axle in the specified direction and then roll the wire of the earphone along the spiral trough. Also, the controlling element can control the rotation of the rolling axle.