Vehicle Door Belt Molding Segmentation for Surface Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional door belt moldings are difficult to separate for post-processing, prone to contamination and damage, and have increased weight due to integrated components and lack of a locking structure, making them hard to assemble and gentrify vehicles.
Innovation Solution
A door belt molding design with a weather strip mounted through a fixing groove and locker, and a mold mounted via a mold clip, allowing separation for surface processing and removing insert steel to reduce weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the weather strip and mold are integrated in the conventional door belt molding, then the structure is simplified, but the weather strip cannot be separated for post-processing and is prone to contamination and damage
Solution Approach 1:
The door belt molding is divided into separate components: the mold and the weather strip are no longer integrated but are positioned and fixed separately. This allows the mold to be processed independently for plating and painting while the weather strip remains separate, preventing contamination and damage during post-processing operations.
2Device complexity
If the door belt molding is fixed on the door panel without an additional locking structure, then the assembly is simpler, but the molding is prone to separation
Solution Approach 1:
The fixing grooves and lockers are pre-formed on the weather strip and mold components during manufacturing. These preliminary structural features enable reliable fixation to the door panel through snap-fit or interlocking mechanisms, ensuring the molding remains securely attached without requiring additional locking structures during assembly.
3Strength
If insert steel is used in the weather strip, then the strength is improved, but the weight of the door belt molding is increased
Solution Approach 1:
The weather strip is designed with optimized material parameters and geometric parameters (such as cross-sectional shape and thickness distribution) to achieve the required strength without relying on insert steel. This parameter optimization reduces the overall weight of the door belt molding while maintaining structural integrity and functional performance.
Data Source
AI summary
A door belt molding for a vehicle installed in a door panel of a vehicle kept close to a door glass may include a weather strip having a fixing groove and a locker formed in upper and lower portions of an external side to be mounted in a hem of the door panel and a plurality of contact lips disposed on an internal side to contact the door glass. The door belt molding may further include a mold having supporters formed at upper and lower ends to be installed in the door panel to surround the weather strip and a mold clip installed in the hem of the door panel through a cut portion of the weather strip to fix the mold to the door panel.