Pivotable Roof Audio Layout for Outward Sound Projection
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Solution Overview
Problem
Off-road vehicles, particularly side-by-side vehicles, face limitations in audio system sound quality and external sound projection, as speakers installed on the roof typically emit sound only within the vehicle, requiring increased volume for external listening, which degrades sound quality.
Innovation Solution
A vehicle design featuring a pivotable roof that can open to expose the audio system speakers externally, allowing sound to project outward while maintaining a secure and supported structure, incorporating a blow-molded plastic roof with integrated audio system components and flexible attachments for secure closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If speakers are installed on the roof to project sound within the vehicle, then sound quality for occupants is improved, but external sound projection is limited and requires increased volume which degrades sound quality
Solution Approach 1:
The roof is designed to be movable between closed and open positions, allowing the audio system to dynamically adjust its sound projection direction. When open, speakers face outward for external sound projection; when closed, they face inward for cabin sound quality, resolving the contradiction between external projection and sound quality
2Illumination intensity
If the roof is made openable to expose speakers externally, then external sound projection is improved, but structural integrity and security are compromised
Solution Approach 1:
The roof is divided into separate sections that can move independently. The audio system is integrated into a specific roof segment that pivots open, while the remaining roof structure stays closed to maintain structural integrity and security
Solution Approach 2:
A pivot mechanism serves as an intermediary between the closed and fully open states. This mechanism allows controlled exposure of speakers while maintaining secure attachment points, resolving the contradiction between external sound projection and structural integrity
3Strength
If the roof structure is made complex to maintain security while openable, then structural integrity is maintained, but device complexity increases
Solution Approach 1:
The roof uses simple dynamic elements like hinges and latches that provide secure attachment in closed position while allowing easy opening. This dynamic design maintains structural integrity without requiring complex mechanical systems
Data Source
AI summary
A vehicle includes: a frame including a roll cage, a motor connected to the frame, a driver seat connected to the frame, and a roof extending at least in part above the driver seat. The roof includes an upper surface and a lower surface. At least part of the roof is pivotably connected to the roll cage about a roof pivot axis so that the at least part of the roof is pivotable from a closed position to an open position. In the closed position, the at least part of the roof covers a roof opening defined by the roll cage, and in the open position, the at least part of the roof at least partly exposes the roof opening.