Front Wheel Frame Stiffness via Integrated Lower Arm Mounting
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Solution Overview
Problem
Conventional front wheel supporting frame structures of saddle-ride type vehicles lack sufficient stiffness and weight reduction, with existing designs often requiring additional reinforcement members that increase weight and complexity.
Innovation Solution
The proposed front wheel supporting frame structure incorporates a main frame, upper and lower arms, and a lower frame, with specific connection and extension portions that enhance stiffness and reduce weight by integrating the lower frame with the main frame's extending portions, allowing for improved load distribution and reduced arm load through increased intervals and reinforcement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional front wheel supporting frame structures are used, then the structure is simpler, but the stiffness is insufficient
Solution Approach 1:
The patent integrates the lower frame with the main frame by forming an extending portion from the main frame that directly connects to the lower frame, eliminating the need for separate reinforcement members. This merging approach enhances frame stiffness while avoiding increased structural complexity.
2Strength
If additional reinforcement members are added to improve stiffness, then the frame stiffness increases, but the weight increases
Solution Approach 1:
The extending portion is formed integrally from the main frame, combining the functions of the main frame and reinforcement members into a single structural element. This integration achieves the required stiffness without adding separate reinforcement components, thereby preventing weight increase.
3Weight of moving object
If the lower frame is integrated with the main frame's extending portions, then the weight is reduced, but the manufacturing complexity increases
Solution Approach 1:
The extending portion is formed as an integral part of the main frame through a single molding process. This merging approach actually simplifies manufacturing by reducing the number of separate components that need to be produced, assembled, and fastened, thereby improving ease of manufacture while achieving weight reduction.
Data Source
AI summary
A front wheel supporting frame structure of a saddle-ride vehicle includes a main frame, upper and lower arms and a lower frame. The main frame has a front portion and a rear portion. The main frame includes an upper connection portion, a lower connection portion, and an extending portion. The extending portion extends downward. The upper arm has an upper front end portion and an upper rear end portion. The upper rear end portion is movably connected to the upper connection portion. The lower arm has a lower front end portion and a lower rear end portion. The lower rear end portion of is movably connected to the lower connection portion. The lower frame includes a bottom portion and an upright portion. The bottom portion extends in the vehicle front-rear direction. The upright portion has a top portion connected to the extending portion.