Vehicle Pillar Trim Panel Wavy Reinforcing Ribs
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Solution Overview
Problem
Existing vehicle pillar interior trim panels face issues with deformation resistance and complex safety belt sliding plate structures, leading to increased manufacturing costs and inconvenient installation processes.
Innovation Solution
The proposed vehicle pillar interior trim panel features a wavy reinforcing rib structure with a first chute for sliding safety belts and third reinforcing ribs to prevent movement, along with non-detachable and detachable buckles for secure and easy installation, and pre-tightening structures for improved assembly convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the upper interior trim panel of the B pillar is made into an inverted draft structure to reduce the gap between the trim panel and door trim panel, then the gap is reduced, but the trim panel is easily extruded by the sealing strip to deform
Solution Approach 1:
The patent applies curvature by designing the reinforcing rib with an arc shape that extends from the front to the rear of the trim panel. This curved structure effectively resists the extrusion force from the sealing strip while maintaining the inverted draft configuration for gap reduction, thus resolving the contradiction between shape requirements and strength requirements
2Strength
If a rectangular frame with high strength is welded on the inner side of the pillar interior trim panel to prevent deformation, then the deformation resistance is improved, but the manufacturing cost and material cost greatly increase
Solution Approach 1:
Instead of using a complete rectangular frame, the patent segments the reinforcement structure into a single arc-shaped reinforcing rib that extends from the front to the rear of the trim panel. This segmented approach provides sufficient deformation resistance while significantly reducing material usage and manufacturing complexity compared to a full rectangular frame
Solution Approach 2:
The reinforcing rib is strategically positioned and shaped to provide local reinforcement exactly where the sealing strip exerts extrusion force. The arc shape and positioning optimize the structural efficiency, allowing reduced material usage while maintaining adequate strength
3Ease of operation
If the pillar interior trim panel is fixed to the vehicle body by screws to conveniently detach the trim panel, then the detachability is improved, but a detachable bulkhead cover needs to be arranged making the appearance unattractive
Solution Approach 1:
The patent extracts the fastening function from the visible bulkhead cover area by positioning the screw holes on the rear surface of the trim panel. This allows the detachability function to be achieved without requiring any visible detachable structures on the front appearance, thus resolving the contradiction between ease of operation and aesthetic appearance
4Adaptability or versatility
If the safety belt sliding plate structure is arranged on the upper interior trim panel to adjust the height of the safety belt, then the safety belt height adjustment function is added, but the sliding plate is prone to move during installation increasing the difficulty of installation
Solution Approach 1:
The patent applies preliminary action by providing pre-tightening structures that are activated during the installation process. These structures temporarily secure the sliding plate in position before final assembly, preventing unwanted movement during installation while maintaining the height adjustment function. This resolves the contradiction by preparing the system in advance to handle the installation challenge
Data Source
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AI summary
The present invention provides a vehicle pillar interior trim panel and a vehicle. The vehicle pillar interior trim panel includes an interior trim panel body (100) and flanges (110) arranged on both sides of the interior trim panel body (100); and opposite side walls of the two flanges (110) are provided with a plurality of first reinforcing ribs (111) distributed along the length direction of the flanges (110), and the first reinforcing ribs (111) are of arch-shaped structures arching toward the interior trim panel body (100). The adjacent first reinforcing ribs (111) are connected to each other to form a wavy reinforcing structure. There is a gap between the first reinforcing rib (111) and the interior trim panel body (100), which is formed as a first chute (120) along the length direction of the interior trim panel body (100); and the vehicle pillar interior trim panel further includes a safety belt sliding plate (200), and the side edges of the safety belt sliding plate (200) can be accommodated in the first chute (120) and slide along the length direction of the interior trim panel body (100). The deformation of the interior trim panel can be effectively resisted, the height of a safety belt is adjusted by the gap between the wavy reinforcing structure and the interior trim panel body (100), the sliding structure of the safety belt sliding plate (200) is simplified, and the material cost and the tooling cost are reduced.