Edge Protector End Cap Insertion Mechanism
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Solution Overview
Problem
Existing edge protector designs with C-shape cross sections and end caps face issues with rainwater entry due to uneven glass support and poor retentivity, as well as difficulties in end cap insertability and secure attachment, particularly caused by interference between the inner lip and end cap components.
Innovation Solution
An edge protector design featuring an inner lip portion and an engaged portion on the edge protector body, combined with a cantilevered beam-shaped rod portion on the end cap that intersects the direction of insertion, allowing for non-interfering insertion and secure attachment, and an insertion portion longer than the rod portion to facilitate easy positioning and prevent disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the end cap is inserted from the end surface of the edge protector body, then the insertability is improved, but the inner lip portion and end cap interfere with each other during insertion
Solution Approach 1:
The groove is divided into two distinct portions: a first groove portion and a second groove portion. This segmentation allows the inner lip portion and the rod portion to occupy different spatial zones during insertion, eliminating interference while maintaining secure engagement. The first groove portion receives the rod portion, while the second groove portion accommodates the inner lip portion, enabling independent movement paths.
Solution Approach 2:
The solution introduces a longitudinal dimension to the groove structure, extending it along the length of the edge protector body. This dimensional expansion creates separate reception spaces for different components at different longitudinal positions, allowing the end cap to be inserted without component interference while maintaining all necessary engagement functions.
2Ease of operation
If the inner lip portion is resiliently deformed during insertion, then the end cap can be inserted, but the retentivity of the inner lip portion for holding the door outer panel is lowered
Solution Approach 1:
The groove is divided into a first groove portion and a second groove portion positioned at different longitudinal locations. The inner lip portion engages with the door outer panel in the second groove portion, while the rod portion engages with the end cap in the first groove portion. This spatial segmentation ensures that the inner lip portion does not need to deform excessively, maintaining its retentivity while allowing end cap insertion.
Solution Approach 2:
The rod portion acts as an intermediary element that facilitates end cap insertion without requiring the inner lip portion to deform. The rod portion engages with both the end cap and the edge protector body, transferring the insertion force and enabling the end cap to be secured without compromising the inner lip portion's engagement with the door outer panel.
3Ease of manufacture
If adhesive agent or calking is used for attachment, then the end cap can be attached to the edge protector body, but squeezing out of adhesive agent or disconnection of end cap may occur
Solution Approach 1:
The solution replaces chemical attachment methods (adhesive agent or calking) with a purely mechanical engagement system. The rod portion features an engaging portion that fits into an engaged portion on the edge protector body, creating a positive mechanical lock. This mechanical system eliminates the problems of adhesive squeezing out or calking disconnection, providing reliable and permanent attachment.
Data Source
AI summary
An end cap includes a lid portion configured to close an end surface of an edge protector body, an insertion portion provided to the lid portion and configured to be inserted from the end surface of the edge protector body to the side of a bottom portion of a groove with respect to an inner lip portion, and a cantilevered beam-shaped rod portion provided on the lid portion, configured to be inserted from the end surface of the edge protector body between the inner lip portion and a notched groove (an engaged portion), and provided at a distal end side thereof with a projection (an engaging portion) engageable and disengageable with respect to the notched groove.