Internal Pivoting Door Sealing Profile With Flexible Stop Block
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Solution Overview
Problem
Interior swing doors in vehicles experience rapid wear of sealing profiles due to friction between the door leaf and the horizontally extending sealing element during opening and closing, leading to reduced tightness and potential water or air ingress.
Innovation Solution
The design incorporates a vertically running sealing profile on the door leaf that avoids contact with the horizontal sealing element by pivoting beneath it, along with a stop block and flexible section to ensure a gap and enhance sealing, reducing friction and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door leaf pivots during opening and closing, then the door can open and close the interior space, but the vertical sealing profile contacts the horizontal sealing element causing friction and wear
Solution Approach 1:
A stop block is introduced as an intermediary element between the vertical sealing profile and the horizontal sealing element. The stop block includes a flexible section that makes contact with the horizontal sealing element first during door opening/closing, preventing the vertical sealing profile from contacting the horizontal sealing element, thus eliminating friction and wear on the sealing profiles while still allowing the door to pivot freely
Solution Approach 2:
The flexible section of the stop block is positioned to make preliminary contact with the horizontal sealing element before the vertical sealing profile would otherwise contact it. This preliminary action prevents the harmful contact between sealing profiles during the door's pivoting movement, protecting them from wear while maintaining operational functionality
2Reliability
If the vertical sealing profile is the full height of the door leaf, then it provides complete sealing coverage, but it contacts the horizontal sealing element during pivoting causing friction
Solution Approach 1:
The stop block with its flexible section serves as a mediator that intercepts the horizontal sealing element's path during door pivoting. This prevents the vertical sealing profile from making contact with the horizontal sealing element, eliminating friction while the vertical sealing profile maintains its full height for complete sealing coverage
Solution Approach 2:
The stop block extracts or removes the harmful interaction between the vertical and horizontal sealing elements from the system. By introducing this separate component, the harmful friction contact is eliminated while the sealing profiles themselves remain intact and fully functional for their sealing purpose
3Reliability
If the horizontal sealing element overlies the upper region of the door leaf, then it provides sealing protection, but it gets contacted and pushed outwards by the door leaf during pivoting
Solution Approach 1:
The stop block acts as an intermediary that absorbs the outward pushing force during door pivoting. The flexible section contacts the horizontal sealing element and prevents it from being pushed outwards by the door leaf, while the horizontal sealing element maintains its protective overlying position for sealing
Solution Approach 2:
The flexible section of the stop block provides beforehand cushioning or protection for the horizontal sealing element. It is positioned to intercept and absorb the outward force before it can act on the horizontal sealing element, preventing displacement while maintaining the sealing element's protective function
Data Source
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AI summary
Inward-swinging door (100), comprising: a door leaf (120a, 120) and a portal (150) in which the door leaf can pivot into an interior space, wherein the door leaf extends at least partially beyond a surface formed by the portal and the door leaf in the closed state during the pivoting movement, wherein the portal has a sealing element (160) extending horizontally in its upper region, which overlaps an upper region of the door leaf in the closed state of the inward-swinging door, wherein the door leaf has at least one door leaf element (130a, 130b) and at least one vertically extending sealing profile (140a, 140b) which is attached to the door leaf element and, in the closed state, abuts another sealing profile (140a, 140b) or the portal, wherein the vertically extending sealing profile has a lower height than the door leaf element, so that the vertically extending sealing profile (140a,140b) passes under the horizontally extending sealing element (160) during a pivoting movement of the door leaf without touching the horizontally extending sealing element.