Curved Cover Glass Segmentation for Reliable Fixation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for fixing curved glass as a cover in automotive interior components or display units are unreliable due to the difficulty in forming openings or concave parts, leading to potential separation and breakage.
Innovation Solution
A curved cover glass with a plate-like glass body having a curvature radius of 10,000 mm or less and an average thickness of 5 mm or less, featuring openings or concave parts that allow for secure attachment using connecting mechanisms, such as drills with grindstones for forming these features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If only the outer periphery of the curved cover glass is fixed with an adhesive, then the fixing process is simple, but the cover glass may not be reliably fixed and gradual separation occurs
Solution Approach 1:
The invention divides the cover glass into multiple sections by providing openings or concave parts at specific positions. This segmentation allows connecting mechanisms to be inserted through or into the glass, creating multiple fixed points that distribute stress and prevent gradual separation, thereby improving fixing reliability while maintaining manufacturing simplicity.
Solution Approach 2:
The invention introduces connecting mechanisms (such as bolts or pins) as intermediary elements that pass through openings or fit into concave parts of the cover glass. These intermediaries provide reliable mechanical connection between the cover glass and the substrate, solving the reliability issue without complicating the overall fixing process.
2Reliability
If an opening is formed in the curved glass using conventional methods, then the glass can be fixed with connecting mechanisms, but the glass may be broken during forming an opening
Solution Approach 1:
The invention performs preliminary actions by forming openings or concave parts in the cover glass before final assembly. By preparing these features in advance on the curved glass surface, the subsequent insertion of connecting mechanisms becomes straightforward, improving fixing reliability while managing manufacturing complexity through staged processing.
Solution Approach 2:
The invention adapts the opening formation process to the curved surface of the cover glass by creating openings or concave parts that conform to the glass curvature. This approach allows connecting mechanisms to be integrated into the curved structure without causing stress concentrations that would lead to breakage, thus improving both reliability and manufacturability.
3Shape
If the cover glass is made thin for aesthetic appearance, then the design property is improved, but the mechanical strength is reduced
Solution Approach 1:
The invention segments the thin cover glass by providing openings or concave parts that allow connecting mechanisms to pass through or engage with the glass. This segmentation creates multiple anchor points that distribute mechanical loads, enabling the use of thin glass for aesthetic purposes while maintaining sufficient mechanical strength through the distributed connection system.
Solution Approach 2:
The invention applies local quality by concentrating the connecting mechanisms at specific locations (openings or concave parts) rather than requiring uniform thickness throughout. This allows the cover glass to be thin in most areas for aesthetic appearance while having localized reinforcement at connection points to maintain mechanical strength.
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
Enables reliable and easy fixation of the curved glass to automotive interior components or display units by providing openings or concave parts for connecting mechanisms, enhancing visibility and mechanical strength while preventing breakage.
Implementation Method 1
drills including a grindstone in a cutting part
Data Source
AI summary
A curved cover glass includes a plate-like glass body having a first surface, a second surface facing the first surface and at least one end face. The plate-like glass body has an average thickness of 5 mm or less. Among tangential directions on the first surface at an arbitrary point, when an X-axis is assumed to be a direction in which a first curvature radius R1 in cross-section of the first surface in an XZ plane is minimum, the first surface has a curvature part in which the surface is bent in the X-axis direction at least at one point on the first surface. The first curvature radius R1 is 10,000 mm or less. The curvature part includes at least one opening or concave part extending from the first surface to the second surface.