Double-Layer Vehicle Body Cover for Tool Storage and Rigidity
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Solution Overview
Problem
Existing vehicle body covers in straddle-type vehicles face challenges in ensuring rigidity while accommodating on-vehicle tools, leading to increased weight and difficulty in maintaining appearance and proper tool storage, especially in models with limited space under the seat.
Innovation Solution
A vehicle body cover with a double structure, featuring a recessed frame cover and a side cover that forms storage portions for tools, enhancing rigidity through an uneven cross-section and forming a labyrinth structure to prevent foreign matter entry into the air intake.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the vehicle body cover is made thicker or provided with ribs to ensure rigidity, then the rigidity is improved, but the weight increases
Solution Approach 1:
The vehicle body cover is divided into multiple components: a frame cover, a side cover, and a rear cover. This segmentation allows each component to be optimized independently for rigidity and weight, avoiding the need for a single thick structure. The frame cover provides structural support while the side and rear covers can be thinner since they are supported by the frame cover.
Solution Approach 2:
Different parts of the vehicle body cover have different thicknesses and structural characteristics. The frame cover has a specific thickness designed for rigidity, while the side cover and rear cover can be thinner. This local optimization ensures rigidity where needed while minimizing weight overall.
2Adaptability or versatility
If a tool box is fixed to the backstay, then tool storage is improved, but the vehicle body cover becomes large and heavy
Solution Approach 1:
The tool storage function is merged with the vehicle body cover structure itself. The rear cover is designed with a recessed portion that forms a storage space, eliminating the need for a separate tool box. This integration reduces the overall weight compared to adding a separate tool box assembly.
Solution Approach 2:
The rear cover serves multiple functions: it provides appearance coverage, structural support, and tool storage. The recessed portion of the rear cover creates storage space while maintaining the cover's structural integrity and aesthetic function, making the component multi-functional and reducing overall system weight.
3Adaptability or versatility
If the vehicle body cover is made larger to accommodate tool storage, then tool storage capacity is improved, but the rigidity becomes difficult to ensure
Solution Approach 1:
The cover system is segmented into frame cover, side cover, and rear cover, with the frame cover providing the primary rigid structure. This segmentation allows the storage space to be created in the rear cover without compromising the overall rigidity, as the frame cover maintains structural strength.
Solution Approach 2:
The storage space is nested within the rear cover structure as a recessed portion. This nesting approach allows tool storage to be integrated into the existing cover structure without requiring additional external components that would compromise rigidity. The recessed portion is supported by the rigid frame cover.
Data Source
AI summary
A vehicle body cover that covers a vehicle body frame from an outside in a vehicle width direction under a seat. The vehicle body cover includes a frame cover positioned outside the vehicle body frame in the vehicle width direction, and a side cover positioned outside the frame cover in the vehicle width direction. The frame cover is recessed toward an inside in the vehicle width direction to form a storage portion for an on-vehicle tool. The side cover covers the storage portion from the outside in the vehicle width direction.