Triangular ATV Frame with Double Wishbone Suspension
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Solution Overview
Problem
Existing all terrain vehicles with double wishbone type suspension face challenges in improving body frame rigidity while maintaining a simple structure and reducing manufacturing costs.
Innovation Solution
The design incorporates a body frame with triangular frame parts and a double wishbone type suspension system, where the upper arm is pivotably supported on the first and second frames, and the lower arm on the third frame, with a shock absorber supported at the top of the triangular frame part, enhancing rigidity and allowing for a lighter and cost-effective construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a triangular frame part with double frames is used to improve body frame rigidity, then frame rigidity is improved, but vehicle weight increases and manufacturing costs increase
Solution Approach 1:
The patent merges the functions of multiple frames into a single integrated triangular frame structure. The first frame extends downward to the front side, the second frame extends downward to the rear side from the upper end of the first frame, and the third frame connects the lower ends, creating a unified rigid structure that eliminates the need for separate double frame assemblies while maintaining structural integrity and rigidity.
Solution Approach 2:
The triangular frame part serves multiple functions simultaneously: it provides structural rigidity, supports the double wishbone type suspension system, and acts as the primary load-bearing structure. The frame configuration integrates shock absorption, wheel suspension, and structural support functions into a single multi-functional component system.
2Strength
If a triangular frame part with double frames is used to improve body frame rigidity, then frame rigidity is improved, but manufacturing costs increase
Solution Approach 1:
The patent combines multiple frame elements into a single triangular frame structure that can be manufactured as one integrated component or module. This reduces the number of separate parts that need to be produced, stored, and assembled, thereby lowering manufacturing complexity and costs while achieving the required rigidity through the triangular geometric configuration.
Solution Approach 2:
The frame is segmented into three distinct but connected elements (first frame extending to front, second frame extending to rear, third frame connecting lower ends) that form a triangular configuration. This segmentation allows for optimized manufacturing of individual frame elements while maintaining the overall rigid structure through their geometric arrangement.
3Strength
If a complex frame structure with multiple frames is used, then body frame rigidity is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple frame functions into a single triangular frame assembly, reducing device complexity. Instead of using separate double frame structures, the invention integrates all necessary frame elements into one coherent triangular configuration that provides equivalent or superior rigidity with fewer components and simpler assembly requirements.
Solution Approach 2:
The frame structure utilizes three-dimensional spatial arrangement of the triangular configuration, where the first frame extends in one direction, the second frame extends in another direction from the upper end, and the third frame connects the lower ends. This 3D geometric arrangement provides rigidity through spatial distribution rather than through increased complexity of individual components.
Data Source
AI summary
An all terrain vehicle includes a front wheel, a body frame and a double wishbone type suspension for suspending the front wheel. The body frame has a triangular frame part formed into the shape of a triangle in side view of the vehicle. The triangular frame part includes a first frame extending downward to the front side of the vehicle, a second frame extending downward to the rear side of the vehicle from an upper end of the first frame and a third frame connected to a lower end of the first frame and a lower end of the second frame. The double wishbone type suspension includes an upper arm, which is pivotably supported on the first frame and the second frame so as to be swingable, and a lower arm, which is pivotably supported on the third frame so as to be swingable.