Corner Insert Assembly for Sheet Panel Gap Sealing
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Solution Overview
Problem
Existing methods for finishing sheet panel corners, such as welding or folding, are either cost-inefficient or aesthetically unsatisfactory, and may expose sharp edges or lead to gap growth over time.
Innovation Solution
A corner insert assembly comprising a body portion with an outer surface to cover gaps, a shank with angled wedge surfaces, and a retention clip with a cutout and locking devices, which secures the insert in place and prevents movement, eliminating the need for welding and providing an aesthetically pleasing contour.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding is used to finish the corner, then the corner edge is securely joined, but the manufacturing cost increases due to polishing requirements and higher grade steel
Solution Approach 1:
A corner insert piece is introduced as an intermediary component between the two corner edge portions. This insert provides a pre-formed continuous surface that eliminates the need for welding and subsequent polishing, while also preventing corrosion without requiring higher grade steel throughout the entire assembly.
Solution Approach 2:
The corner finishing function is segmented into a separate insert component rather than being integrated into the main corner edges. This allows the insert to be manufactured independently with the specific properties needed for corrosion resistance and surface continuity, while the main structure can use standard materials.
2Ease of manufacture
If corner edges are simply folded leaving a gap, then manufacturing is simpler, but sharp edges may be exposed and aesthetic quality deteriorates
Solution Approach 1:
The corner insert acts as a mediator that covers the gap between folded corner edges, eliminating exposed sharp edges and providing a continuous aesthetic surface. The insert is designed to conform to the folded corner geometry while maintaining a smooth outer surface.
Solution Approach 2:
The corner insert is pre-formed with the appropriate shape and surface characteristics before installation. This preliminary preparation ensures that when the corner edges are folded and the insert is applied, the harmful sharp edges are immediately covered and the aesthetic surface is already in place.
3Ease of operation
If a gap is left between corner edge portions, then assembly is easier, but the gap grows over time leading to aesthetic degradation
Solution Approach 1:
The corner insert serves as a stable intermediary component that fills and secures the gap between corner edges. Once installed, it prevents the gap from growing over time while maintaining the ease of initial assembly through simple insertion or attachment mechanisms.
Solution Approach 2:
The corner insert is designed to self-secure in the gap through features such as friction fit, deformation locking, or attachment mechanisms that automatically engage when the insert is placed in position, eliminating the need for additional fastening operations while preventing gap growth.
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
The corner insert assembly effectively covers gaps, prevents sharp edges, and maintains a smooth aesthetic by securely locking into place, eliminating the need for welding and reducing the risk of gap growth.
Implementation Method 1
a wedge portion connected to the shank and including first and second angled wedge surfaces. The first and second wedge surfaces are adapted to engage the wings of the retention clip.
Data Source
Figure 1-1~1-2
Figure 2-1~2-3
Figure 3-1~3-2
AI summary
A folded sheet panel assembly includes a gap (140) formed in a corner region which is filled with a corner insert member (200). A retention clip (300) is attached to the corner insert to retain the corner insert once installed in the gap. The retention clip (300) includes outwardly flaring wing portions (302,304) which press upon inner surfaces of the sheet panel to fix the installed position of the corner insert. The corner insert includes a locking device (260) which engages a surface of the retention clip to limit or prevent movement of the corner insert relative to the retention clip.