Glass Corner Protector Structure for Impact Stress Reduction
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Solution Overview
Problem
Sheets of glass and other brittle materials often break during handling and transportation due to direct contact with hard objects, leading to significant damage and risk of injury, with 75% of breakages occurring at the corners.
Innovation Solution
A corner protector with side walls connected by perpendicular bridging walls, featuring internal recesses and channels to absorb impacts, and an adhesive pad for secure attachment, designed to reduce stress on the protected corners and prevent direct contact with the corner junctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a corner protector is applied to protect glass corners, then the risk of damage and injury is reduced, but the device complexity increases
Solution Approach 1:
The corner protector is divided into multiple functional components: side walls for structural support, bridging walls for impact distribution, recesses for stress reduction, and adhesive pads for attachment. This segmentation allows each component to address specific protection needs while maintaining overall simplicity.
Solution Approach 2:
The corner protector acts as an intermediary between the glass sheet and external impact sources. It absorbs and distributes impact forces before they reach the vulnerable corner regions, thereby protecting both the glass and handlers without requiring complex protective systems.
2Ease of manufacture
If the corner protector structure is simplified, then the ease of manufacture improves, but the protection effectiveness decreases
Solution Approach 1:
Multiple protective functions are merged into a single integrated corner protector structure. The side walls, bridging walls, recesses, and adhesive pads work together as one unit that can be manufactured separately and applied to each corner, achieving both ease of manufacture and effective protection.
Solution Approach 2:
The corner protector incorporates local structural features such as recesses at the junction of bridging walls and channels along the side wall-bridging wall junctions. These localized modifications specifically target stress concentration points without requiring complex overall structure, maintaining ease of manufacture while enhancing protection effectiveness.
3Strength
If the corner protector uses rigid structures, then the strength improves, but the ability to absorb impacts decreases
Solution Approach 1:
The corner protector incorporates curved surfaces and rounded transitions, particularly at the junctions between side walls and bridging walls. These curved geometries distribute impact forces more effectively compared to sharp angles, enhancing impact absorption while maintaining structural strength through the curved arch forms.
Solution Approach 2:
The recesses and channels built into the corner protector structure serve as pre-designed cushioning zones that absorb impact energy before it reaches the glass corner. These features are incorporated during manufacturing and provide built-in shock absorption without requiring additional cushioning materials or complex mechanisms.
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
Substantially reduces the risk of damage and injury by distributing impact forces across the edges of the protected article, preventing corner breakage and allowing easy application and removal while maintaining secure attachment.
Implementation Method 1
an adhesive pad which adheres to the protected article in use to hold the corner protector in place
Data Source
AI summary
A corner protector, e.g. for a sheet of glass, has a pair of generally triangular side walls connected by a pair of substantially perpendicular bridging walls. The internal faces of the bridging walls are substantially flat and are separated by a recess. Internal channels are provided along the junction between the side walls and the bridging walls. The margins of the side walls which extend between the outer ends of the bridging walls are curved such that they are mutually offset from each other for most of their length. At least one of the side walls contains a through-aperture for receiving an adhesive pad which adheres to the protected article in use to hold the corner protector in place. A finger notch provides access to an edge of the adhesive pad to facilitate peeling in order to remove the corner protector.