Vehicle Window Resin Frame Mold Release
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Solution Overview
Problem
The existing methods for attaching a resin frame to a glass plate for vehicles face challenges with mold release resistance and throughput, especially when the resin frame has a complicated shape, leading to potential detachment from the adhesive and reduced production efficiency.
Innovation Solution
A plate-like body with a resin frame attached to a vehicle, where the resin frame has projections that face inwardly and are molded with specific adhesive placement to reduce mold release resistance, allowing for the attachment of a complicated shape without reducing throughput, and featuring a design with no adhesive between certain inner surfaces and the peripheral edge areas to prevent unintended detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the resin frame has a complicated shape with multiple obliquely projecting portions, then the functional performance is improved, but the mold release resistance increases causing the resin frame to detach from the adhesive
Solution Approach 1:
The patent extracts the problematic obliquely projecting portions from the resin frame design. By removing these specific geometric features that cause high mold release resistance, the invention maintains the essential functional performance while eliminating the detachment issue during demolding
Solution Approach 2:
Instead of making the resin frame projections more complex to improve function, the invention inverts the approach by simplifying the projection geometry. The resin frame projections are designed with reduced complexity and lower mold release resistance, while functional requirements are met through alternative design configurations
2Reliability
If the curing time of the resin material is extended to prevent detachment, then the attachment reliability is improved, but the production throughput is reduced
Solution Approach 1:
The invention applies preliminary action by designing the resin frame with optimized projection geometry before the molding process. The projections are configured to have low mold release resistance from the start, eliminating the need for extended curing times to prevent detachment, thus maintaining both reliability and throughput
3Reliability
If adhesive is applied to the entire peripheral edge area, then the attachment reliability is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent applies local quality by concentrating the adhesive application to specific critical areas rather than the entire peripheral edge. The adhesive is applied locally at the base portions of the resin frame projections where attachment is most critical, reducing manufacturing complexity while maintaining sufficient attachment reliability
Solution Approach 2:
The invention extracts unnecessary adhesive application areas from the manufacturing process. By removing adhesive application from non-critical regions and retaining it only where needed at projection bases, the invention simplifies the manufacturing process while preserving attachment reliability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables the efficient attachment of a resin frame with a complicated shape to a vehicle window without reducing production throughput, ensuring the resin frame remains securely attached and maintains effective water prevention without aesthetic issues.
Implementation Method 1
injecting a resin material into the cavity space to produce a glass plate with the resin frame integrally molded thereto
Implementation Method 2
attempt is made to extend the time for curing the resin material during molding of the resin frame
Implementation Method 3
an adhesive is disposed only between the peripheral edge area of the main surface on a car-exterior side and the inner surface of the resin frame which faces the peripheral edge area of the main surface on the car-exterior side
Data Source
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AI summary
A plate-like body (12) with a resin frame (14) attached thereto for a vehicle includes two main surfaces (12A, 12B) and an end part (12C) connecting the two main surfaces, and a resin frame integrally molded to a peripheral edge area of the plate-like body; the resin frame (14) including a main part (16) having a plurality of inner surfaces (18, 20, 22) facing the two main surfaces (12A, 12B) and the end part (12C), and a plurality of projections (24, 26, 28, 30, 32) obliquely projecting from the main part in a direction opposite to the plate-like body; and the resin frame having no adhesive between the peripheral edge area and an inner surface close to the projections.