Wireless Earset Cable Winding Mechanism for Tangling Prevention
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Solution Overview
Problem
Conventional wireless earsets with cases have exposed wires that tend to get twisted or tangled, making them inconvenient for storage and use.
Innovation Solution
The design incorporates a case with rotating winding devices and a stopper mechanism that allows the audio cable to be wound around the circumference of the winding devices, keeping it inside the case when not in use and retracting it when needed, using a combination of gears, helical springs, and asymmetrical inclined surfaces to manage the rotation and retraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wire connecting the case and receiver is exposed outside the case, then the earset can be used wirelessly with the receiver, but the wire becomes twisted or tangled during maintenance and storage
Solution Approach 1:
The wire is extracted from the external environment and stored within the case when not in use. The winding device allows the wire to be retracted into the case housing, separating the wire from the external space where it could tangle, while still allowing it to be deployed when needed for wireless operation.
Solution Approach 2:
The wire is nested within the case structure through the winding device. The wire winds around the winding spool that is housed inside the case, allowing the wire to be contained within the case boundaries when not in use, preventing external tangling while maintaining accessibility.
2Reliability
If a wire is provided to connect the case and receiver, then audio signal transmission is enabled, but the wire exposes outside and causes maintenance issues
Solution Approach 1:
The wire management function is extracted from the case structure and implemented through a dedicated winding device. This separate mechanism allows the wire to be independently managed - stored when not needed for transmission, and deployed when required, improving both reliability of signal transmission and ease of maintenance.
Solution Approach 2:
The wire connection transitions from a static exposed state to a dynamic state where it can be wound and unwound as needed. The winding device provides dynamic control over wire deployment, allowing the wire to be retracted during maintenance and extended during use, improving both transmission reliability and maintenance convenience.
3Object-generated harmful factors
If the wire is kept inside the case, then tangling is prevented, but the wire needs to be retracted and extended mechanism is required
Solution Approach 1:
The winding device is merged with the case structure, integrating the wire management function into the existing case housing. The winding spool, housing, and wire form an integrated assembly that prevents tangling without requiring a completely separate mechanism, thus reducing overall device complexity while achieving tangling prevention.
Solution Approach 2:
The winding device is designed to be manually operated by the user through a winding operation. The user themselves performs the retraction and extension of the wire by rotating the winding spool, eliminating the need for complex automatic retraction mechanisms while still achieving tangling prevention.
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 solution effectively keeps the audio cable inside the case when not in use, preventing tangling and enhancing user convenience by allowing the earset to be worn without exposing the cable, thus improving mobility and ease of use.
Implementation Method 1
a helical spring comprising one end coupled to the shaft and the other end spirally wound around the shaft and coupled to the rotation housing
Implementation Method 2
a first gear formed in an outer circumference; a second winding device rotatably mounted in the case, the second winding device comprising a second gear formed in an outer circumference to engage with the first gear
Implementation Method 3
a stopping projection formed in an outer surface of at least one of the first and second winding devices, the stopping projection comprising a first inclined surface and a second inclined surface formed in asymmetry
Data Source
AI summary
There is disclosed a wireless sound equipment includes a case; a first holder and a second holder provided in both sides of the case, respectively; a first receiver and a second receiver coupled to and decoupled from the first holder and the second holder, respectively; a first winding device gear rotatably mounted in the case, the first winding device comprising a first gear formed in an outer circumference; a second winding device rotatably mounted in the case, the second winding device comprising a second gear formed in an outer circumference to engage with the first gear; a first audio cable connected between the first receiver and the first winding device to be wound around the circumference of the first winding device; and a second audio cable connected between the second receiver and the second winding device to be wound around the circumference of the second winding device.