Automobile Division Bar Segmentation for Glass Fit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing division bars for automobiles between movable and fixed door glasses are complex to manufacture due to embedded cores, leading to uneven surfaces and aesthetic issues caused by large differences in level between the door glass and quarter glass surfaces.
Innovation Solution
The division bar is composed of two separate members, an inner-cabin side member and an outer-cabin side member, where the outer-cabin side member is higher in rigidity and couples to the inner-cabin side member, with a core embedded in the inner-cabin side member that is bendable to fit the curvature of the outer-cabin side member, reducing the need for whole-bar bending and simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the division bar is made as a single integrated piece with an embedded core for rigidity, then the structural strength and rigidity are improved, but the manufacturing complexity increases and appearance quality deteriorates due to large level differences
Solution Approach 1:
The division bar is divided into two separate members: an inner-cabin side member and an outer-cabin side member. The inner-cabin side member contains the embedded core for rigidity, while the outer-cabin side member is designed separately to achieve a convex shape. This segmentation allows each member to be optimized independently, reducing overall manufacturing complexity while maintaining structural strength.
2Strength
If the division bar is made as a single integrated piece with an embedded core, then the structural rigidity is improved, but the appearance quality deteriorates due to large level differences between door glass and quarter glass surfaces
Solution Approach 1:
By separating the division bar into two members, the outer-cabin side member can be specifically designed with a convex shape to match the curvature of the door glass, while the inner-cabin side member maintains the embedded core for rigidity. This eliminates the level differences that occur in single-piece designs.
Solution Approach 2:
The inner-cabin side member is designed with an embedded core at specific locations where rigidity is needed, while the outer-cabin side member is designed with a convex shape at locations where appearance quality is critical. Each member has different local properties optimized for its specific function.
3Shape
If the entire division bar is subjected to bending to match door glass curvature, then the fit and appearance are improved, but the processing complexity and difficulty increase
Solution Approach 1:
Only the outer-cabin side member is subjected to bending to achieve the convex shape matching the door glass curvature, while the inner-cabin side member with the embedded core is processed separately. This segmentation of the bending process significantly reduces processing complexity compared to bending the entire division bar.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces processing complexity, improves the appearance by minimizing level differences between the door glass and quarter glass surfaces, and allows for easier adjustment during assembly.
Implementation Method 1
The core (35) extends in an upper and lower direction of an automobile body, and is bendable in an inner-cabin and outer-cabin direction
Implementation Method 2
The inner-cabin side lip (37) makes elastic contact with an inner-cabin side surface of the door glass (2) and the outer-cabin side lip (47) makes elastic contact with an outer-cabin side surface of the door glass (2)
Data Source
AI summary
A division bar for an automobile is provided between a movable door glass and a fixed quarter glass. The division bar includes an inner-cabin side member and an outer-cabin side member. The inner-cabin side member is formed by integrally molding a receiving part, an inner-cabin side lip, and a seal part. A core is embedded in the receiving part. The core is bendable in an inner-cabin and outer-cabin direction. The outer-cabin side member is formed by integrally molding an anchoring protrusion, an outer-cabin side lip, and a seal lip. The outer-cabin side member couples to the inner-cabin side member by fitting the anchoring protrusion into the receiving part with the outer-cabin side lip making elastic contact with an outer-cabin side surface of the door glass and with the seal lip making elastic contact with the seal part.