Vehicle Side Structure Partition Member Recess Rib Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle body side structures face complexity in installing partition members due to complicated joint shapes between center pillars and side sills, leading to insufficient filling space for filler and rigidity issues with longer ribs.
Innovation Solution
A vehicle body side structure with a partition member featuring a tubular recess portion and a rib extending downward from the recess portion, allowing easy attachment to the side sill, creating a sufficient filling space while reducing rib length and enhancing structural rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If a rib is extended downward from the main body part to create filling space, then the filling space for filler is sufficient, but the rib length increases causing insufficient rigidity and manufacturing difficulty
Solution Approach 1:
The patent introduces a recess portion that extends in the vehicle width direction (lateral dimension) rather than only extending the rib in the vertical direction. This dimensional change allows the filling space to be expanded laterally while keeping the rib length short, thereby maintaining rib rigidity while achieving sufficient filler volume
Solution Approach 2:
The filling space is segmented into two dimensions: vertical extension through the rib and lateral extension through the recess portion. This segmentation allows the space to be sufficiently large without requiring an excessively long rib, thus resolving the contradiction between filling space volume and rib rigidity
2Volume of stationary object
If a rib is extended downward from the main body part to create filling space, then the filling space for filler is sufficient, but the manufacturing complexity increases
Solution Approach 1:
The recess portion and rib are merged into a single integrated structure formed from the main body part. This merging allows both features to be created in one molding process rather than requiring separate manufacturing steps, thereby reducing manufacturing complexity while achieving sufficient filling space
3Ease of operation
If the partition member is attached to the side sill via engagement part, then the installation is easier, but the rib length must be increased to create sufficient filling space
Solution Approach 1:
Instead of increasing rib length in the vertical direction, the patent expands the filling space laterally through the recess portion. This dimensional change allows sufficient filler volume to be achieved without increasing rib length, thereby maintaining both easy installation and short rib length
Data Source
AI summary
A vehicle body side structure includes: a side sill extending in a vehicle front-rear direction; a center pillar outer part that extends upward from the side sill; a center pillar inner part arranged on a vehicle width direction inner side of the center pillar outer part; and a partition member arranged in a hollow space defined by the center pillar outer part and the center pillar inner part, the partition member extending in the vehicle front-rear direction. The partition member includes: a main body part; a recess portion having a tubular shape, the recess portion being formed by the main body part being partially recessed downward; and a rib extending downward from a lower face of the recess portion, the rib being in abutment with an upper face of the side sill.