Plastic Rear View Mirror Clipping and Adhesive Attachment
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Solution Overview
Problem
Current methods for attaching plastic-based mirror panes in rear view mirror assemblies for motor vehicles are complex and costly, lacking a simple and effective solution.
Innovation Solution
A rear view mirror assembly design featuring a plastic mirror pane with variable thickness and a carrying element, utilizing injection molding for production, with clipping means such as flanges and pressure tabs for secure attachment, and adhesive pads for reinforcement, allowing for a single-step assembly process and enhanced mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current attachment methods are used for plastic mirror panes, then the mirror pane can be attached to the support structure, but the attachment process becomes complex and costly
Solution Approach 1:
The patent integrates multiple attachment functions into a single clip structure. The clip combines mechanical engagement features (shoulders, engagement surfaces) and adhesive application capabilities in one component, eliminating the need for separate attachment mechanisms and reducing overall assembly complexity while maintaining secure bonding of the mirror pane to the support structure
Solution Approach 2:
The clip is designed as a multi-functional element that simultaneously provides mechanical support, structural alignment, and adhesive bonding. It features engagement surfaces for mechanical attachment, shoulders for positioning, and integrated adhesive application capabilities, allowing one component to perform multiple attachment functions that would otherwise require separate systems
2Weight of moving object
If plastic material is used for mirror pane, then weight is reduced and impact resistance is improved, but attachment difficulty increases
Solution Approach 1:
The clip features localized engagement surfaces and shoulders positioned at specific locations on the mirror pane. These local structural features concentrate the attachment forces at optimal points, providing secure mechanical bonding while accommodating the plastic material's properties. The localized design allows easy attachment without requiring complex overall restructuring of the mirror pane
Data Source
Figure 1~3
Figure 4~6
AI summary
Rear view mirror assembly comprising a mirror pane (10), a mirror pane carrying element (20), a cover (60), and supporting means (61) associated with the carrying element (20) and the cover (60) that comprise of supporting elements (65) formed on an inner surface (62) of the cover (60) extending perpendicular to an inner surface of the mirror pane (10). It also includes reinforcing ribs (16) in portions of the mirror pane (10) to be received into slots (50) of the carrying element (20). Clipping means are provided for coupling the mirror pane (10) to the carrying element (20) which comprise a number of flanges (31) and a number of corresponding openings (33) whose plane is mutually perpendicular.