Rear Package Tray Support Member Flange Rigidity
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Solution Overview
Problem
Existing rear package tray structures for vehicles, particularly in medium and small-sized vehicles, face challenges in enhancing rigidity without increasing the size of side and upper members due to limited space, leading to constraints in design and potential durability issues at connection points.
Innovation Solution
A rear package tray structure featuring a support member with a reinforcing flange that extends along one side edge, connecting the side and upper members with an inclined configuration, including a first and second reinforcing flange, and a reinforcing panel for welding, which enhances rigidity without enlarging the members' sizes, allowing for improved vehicle body design and space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If separate reinforcing members or higher rigidity metal plates are added to improve vehicle body rigidity, then rigidity is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent integrates the reinforcing function directly into the support member by adding a flange structure, merging the support and reinforcement functions into a single component. This eliminates the need for separate reinforcing members while maintaining improved rigidity.
Solution Approach 2:
The support member is segmented into functional portions: a support body for structural support and a flange for reinforcement. This segmentation allows each portion to perform its specific function efficiently without requiring additional components.
2Strength
If the sizes of side members and upper member are increased to improve rigidity, then rigidity is improved, but the available space in medium and small sized vehicles is reduced
Solution Approach 1:
Instead of increasing the overall size of side members and upper members, the patent applies a localized flange structure at critical connection points. This provides reinforcement only where needed, maintaining rigidity without compromising interior or trunk space.
3Strength
If additional reinforcing members are mounted to improve rigidity, then rigidity is improved, but the design freedom for medium and small sized vehicles is limited
Solution Approach 1:
The reinforcing function is merged into the support member itself through the flange structure, providing rigidity improvement without adding separate components that would constrain design flexibility in medium and small sized vehicles.
Data Source
AI summary
A structure of a rear package tray for a vehicle, which is mounted on body panels which vertically stand at both sides of a floor panel and positioned between an interior room and a trunk room of a vehicle. The structure includes: a side member mounted on the body panel with a front side member which is positioned at a relatively front side, and a rear side member which is positioned at a relatively rear side, coupled to each other; an upper member disposed at an upper side of the side member in a horizontal direction of a vehicle body; and a support member having one side connected to the upper member and the other side connected to the side member with an inclination to be spaced apart from a connection portion of the side member and the upper member. A reinforcing flange protrudes in a horizontal direction along one side edge of the support member.