Rotatable Bone-Conductive Acoustic Device for Headwear
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Solution Overview
Problem
Current bone-conductive earphones integrated into head wearable equipment lack a large adjustable range and comfort, with existing solutions offering limited adaptability and often causing discomfort due to small adjustment ranges and exposure of adjustment structures.
Innovation Solution
A head-mounted bone-conductive acoustic device featuring a rotation structure with a rotating shaft bracket and connecting member, allowing the bone-conductive earphone or microphone to be rotatably connected to the head wearable equipment, utilizing a gasket for damping and friction to secure the device in place, providing a wide range of adjustments and enhanced comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If elastic material is used to produce clamping portion for adjusting bone-conductive earphone position, then adaptability to different head forms is improved, but adjustable range is limited and discomfort occurs due to severe clamping
Solution Approach 1:
The bone-conductive earphone is designed with a rotatable connection structure that allows dynamic adjustment of its position and orientation. The rotation structure enables the earphone to move from an initial position to different angular positions, providing continuous adaptability without relying on elastic deformation that causes discomfort.
2Adaptability or versatility
If guiding rod structure is used to adjust bone-conductive earphone position, then position adjustment is enabled, but adjustment structure is exposed and not aesthetically pleasing
Solution Approach 1:
The rotation structure is designed with nested components where the bone-conductive earphone housing contains the rotation mechanism. The rotation structure includes a first rotation component connected to the earphone housing and a second rotation component connected to the head-wearable equipment, with both components nested within each other to enable rotation while maintaining a compact, aesthetically pleasing appearance without exposed adjustment mechanisms.
3Length of moving object
If groove and push-pull guiding rod structure is used for position adjustment, then length adjustment is enabled, but adjustment range is very small and hair pinching occurs causing discomfort
Solution Approach 1:
Instead of limiting adjustment to a single linear dimension (push-pull motion), the invention introduces rotational degrees of freedom. The bone-conductive earphone can rotate around multiple axes, transforming the adjustment from one-dimensional linear motion to multi-dimensional angular motion, thereby dramatically expanding the adjustment range and enabling adaptation to various head forms and wearing positions.
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 solution enables a large adjustable range and strong adaptability of the bone-conductive acoustic device, ensuring high comfort and wide application across various head forms and facial structures, preventing slippage and exposure issues.
Implementation Method 1
utilizing a gasket for damping and friction to secure the device in place
Implementation Method 2
utilizing a gasket for damping and friction to secure the device in place
Data Source
Figure 1~2B
Figure 3A
Figure 3B
AI summary
The present disclosure provides a head wearable equipment with an adjustable bone-conductive acoustic device movably connected to the head wearable equipment and the moving manner at least includes rotation. A technical effect of adaptive adjustment according to the wearer's head form or facial shape can be realized via the structural arrangement of the adjustable bone-conductive acoustic device, with the characteristics of a large adjustable range, strong adaptability, high comfortability and a wide range of application.