Triangular Stay for Motorcycle Electric Component Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional stays for saddle riding vehicles face challenges in achieving compactification and ensuring strength and rigidity, especially when electric components are intensively arranged ahead of the head tube, making them susceptible to heat damage and external influences.
Innovation Solution
A stay with a triangular-shaped first frame body is disposed on the front portion of the body frame, featuring a first electric-component supporting portion positioned inwardly, and a frame-body supporting portion that couples the apex of the first frame body to the body frame, enhancing strength and rigidity while allowing for compact arrangement of electric components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric components are intensively arranged ahead of the head tube, then heat damage avoidance is improved, but the space is limited and susceptible to external influence
Solution Approach 1:
The patent relocates electric components from the limited space ahead of the head tube to a rearward position on the body frame, utilizing underutilized spatial dimensions. This dimensional shift allows intensive arrangement of electric components in a larger, more protected area while maintaining heat damage avoidance and reducing external influence susceptibility.
2Strength
If a rigid cowl brace extends forward from the electric component cover, then strength and rigidity are ensured, but the front-rear length of the vehicle becomes long
Solution Approach 1:
Instead of extending the rigid support structure forward from the electric component cover as in conventional designs, the patent inverts the arrangement by positioning the electric components rearward on the body frame and supporting them from behind. This inversion maintains the necessary strength and rigidity through the rigid cowl brace while significantly reducing the front-rear length of the vehicle.
3Volume of moving object
If electric components are arranged ahead of the head tube, then compactification is attempted, but the arrangement is susceptible to external influence
Solution Approach 1:
The patent nests the electric components within the body frame structure, positioning them in a rearward location that is protected by the vehicle's overall structural framework. This nesting approach maintains compactification by utilizing internal space efficiently while shielding the electric components from external influences such as debris, water, and physical impacts.
Data Source
AI summary
A motorcycle includes a stay, which supports an electric component, an exterior component, and the like, on a front portion of a head tube of a body frame. The stay includes an upper-portion triangular frame body having a triangular shape from a V-shaped portion of a main stay and an upper stay, and at least a part of an ECU supporting portion, which supports an ECU, is disposed inward of the upper-portion triangular frame body. One apex of the upper-portion triangular frame body is positioned on a vehicle front side.