Cord-Tangle-Resistant Auricle-Clamping Sound Output Device

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Solution Overview

Problem

Existing sound output devices with cords attached to the earpiece often suffer from usability issues due to cord tangling, making it difficult to quickly attach or detach the device.

Innovation Solution

The sound output device features a pair of attachment portions that sandwich the auricle, with each portion having a first and second pressing surface, and can be elastically deformed to engage with each other, preventing cord entanglement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a cord is connected to the sound output device for signal transmission, then electrical connectivity is achieved, but cord tangling occurs and attachment/detachment becomes difficult

Engineering Contradiction:
Improveelectrical connectivityVSAvoidattachment and detachment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The sound output device is divided into separable components: a wearable unit and a case unit. The wearable unit can be detached from the case unit, allowing the cord to be housed within the case when not in use, preventing tangling while maintaining electrical connectivity through a connector that engages between the two units.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A connector serves as an intermediary element between the wearable unit and the case unit. This connector enables electrical signal transmission when the units are coupled, while also serving as a release mechanism that allows easy detachment by pulling the connector, thus solving both connectivity and ease of operation requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Volume of moving object

If the sound output device is made small for portability, then it can be easily carried, but the attachment structure becomes more complex

Engineering Contradiction:
Improvedevice sizeVSAvoidattachment structure
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The attachment structure is merged with the case unit itself. The case unit houses the attachment portion that engages with the wearable unit, combining the functions of protection, storage, and attachment into a single integrated structure. This eliminates the need for separate attachment mechanisms, reducing overall complexity despite the compact size.

Inventive Principle:
Principle #5Merging (Combining)

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

This design enhances usability by allowing easy attachment and detachment while preventing cord entanglement, ensuring a stable and convenient user experience.

Implementation Method 1

the attachment portion is elastically deformable in directions in which both of end portions in the longitudinal direction are separated from each other and contact each other

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12348922B2Sound output device
Publication Date: 2025.07.01 AMBIE CORP
  • US12348922B2 patent drawing
  • US12348922B2 patent drawing
  • US12348922B2 patent drawing

AI summary

The present technology is to improve usability. Provided is an attachment portion which includes a first pressing portion and a second pressing portion to be pressed against both surfaces of an auricle respectively and is attached to an ear in a state of sandwiching the auricle. A pair of the attachment portions is provided, and the pair of attachment portions can be engaged with each other. With this structure, the pair of attachment portions can be engaged with each other when not in use and the like, entanglement between cords or between the cords and the attachment portions can be prevented, and usability can be improved.