Birds Beak Bracket Self-Locating Bolster Attachment
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Solution Overview
Problem
Conventional methods for securing the 'birds beak' area of a vehicle fascia to a front end module bolster are inefficient, leading to inconsistent seam flushness and increased costs due to reliance on expensive sonic welding, which can fail under vehicle vibrations.
Innovation Solution
A fascia attachment system featuring a bracket with self-locating structures that securely engage with the bolster, allowing for precise orientation and attachment without direct coupling to the headlamp assembly, using reinforcing features and locator tabs to ensure a snug fit and easy servicing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sonic welding is used to secure the birds beak area to the headlamp assembly, then the fascia can be attached to provide seam coverage, but the welding joints fail under vehicle vibrations and incur high manufacturing costs
Solution Approach 1:
The patent replaces the sonic welding process with a mechanical fastening system consisting of a bracket, fastener, and self locating structures. The bracket engages with the bolster through locator structures that provide precise positioning without requiring thermal or ultrasonic energy, thereby eliminating the reliability issues of sonic welding under vibration while reducing manufacturing complexity and cost.
2Manufacturing precision
If the birds beak area is directly coupled to the headlamp assembly, then seam coverage is achieved, but the assembly complexity increases and servicing becomes difficult
Solution Approach 1:
The patent segments the fascia attachment system into distinct modular components: a bracket separate from both the fascia and the headlamp assembly, fasteners for securement, and self-locating structures for positioning. This segmentation allows the birds beak area to be precisely positioned relative to the bolster while maintaining independence from the headlamp assembly, thereby achieving seam flushness without increasing overall assembly complexity.
Solution Approach 2:
The bracket serves as an intermediary component between the birds beak area of the fascia and the bolster. It provides a dedicated mounting structure with self-locating features that simplify the attachment process, eliminate the need for direct coupling to the headlamp assembly, and maintain precise seam alignment through its engineered engagement features.
3Ease of manufacture
If conventional fastening methods are used without self-locating structures, then the bracket can be attached to the bolster, but positioning precision and orientation consistency are poor
Solution Approach 1:
The bracket incorporates self-locating structures including locator tabs and locator through-bores that automatically engage with corresponding features on the bolster during installation. This self-service positioning mechanism ensures precise orientation and location of the bracket without requiring complex alignment procedures or additional positioning equipment, thereby achieving high manufacturing precision while maintaining attachment simplicity.
Data Source
AI summary
An attachment system for connecting a vehicle fascia birds beak element to a vehicle front end module bolster includes a bracket having a fascia-engaging portion and a bolster-engaging portion. The bolster-engaging portion includes one or more bracket locator structures configured for engaging cooperating structures disposed on the bolster to self-orient the bracket in a predetermined orientation. The system further includes a vehicle front end module bolster having a bracket-engaging portion that includes one or more bolster locator structures configured for engaging cooperating structures disposed on the bracket to self-orient the bracket in the predetermined orientation.