Vehicle Mirror Holder Grooves for Bonding Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Variations in manufacturing lead to inconsistent gap sizes between the mirror plate and holder, causing fluctuations in adhesive bonding strength, which deteriorates the holding performance of the mirror plate, especially under vibrations or exposure to rain and wind.
Innovation Solution
A holder attached mirror with a plate-shaped mirror holder featuring parallel first grooves on its surface to accommodate manufacturing errors, allowing for even deformation and air escape, thereby stabilizing the adhesive bonding and preventing air accumulation, and complemented by second grooves to prevent molding defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the mirror holder surface is made smooth and flat for proper adhesive bonding, then bonding strength is improved, but manufacturing variations cause gap size variations that deteriorate bonding strength
Solution Approach 1:
The invention changes the surface geometry parameter of the mirror holder by forming grooves on the bonding surface. These grooves allow the holder to deform and adapt to variations in the mirror plate back surface, compensating for manufacturing tolerances. The grooved surface maintains adequate bonding strength while accommodating gap size variations that would otherwise occur with a smooth flat surface.
2Strength
If adhesive sheet is applied to bond mirror plate and holder, then holding performance is improved, but air accumulation between adhesive and holder deteriorates bonding strength
Solution Approach 1:
The invention extracts air from the bonding interface by forming grooves that serve as air escape passages. During the bonding process, air can escape through these grooves rather than being trapped between the adhesive sheet and the holder surface, preventing air accumulation that would otherwise deteriorate bonding strength.
3Strength
If mirror holder is made to precisely fit mirror plate for optimal bonding, then bonding strength is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The invention introduces flexibility into the mirror holder bonding surface through grooves, allowing the rigid plastic holder to dynamically adapt its shape during bonding. This enables the holder to accommodate mirror plate variations without requiring ultra-precise manufacturing tolerances, thereby reducing manufacturing complexity while maintaining bonding strength.
Data Source
AI summary
A holder attached mirror for a vehicle is provided, in which a mirror plate is fixed to a plate-shaped mirror holder by an adhesive sheet, including a plurality of first grooves parallel to each other, which are formed on the surface of the mirror holder attached with the adhesive sheet on the surface of the mirror holder side to which the adhesive sheet is attached.