Adjustable Seal Trigger Mechanism for Housing Modification
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Solution Overview
Problem
Existing door seals with adjustable triggers face challenges in adjusting the trigger without disassembling the seal, particularly when the housing is shortened, as known solutions either require dismantling or are cumbersome to reinsert the guide elements.
Innovation Solution
A dual-trigger mechanism where a first trigger part is slidably guided within the housing and a second trigger part is rotatably mounted on the first, allowing adjustment of the trigger's position relative to the rod without disassembly, using complementary contours and a spring-like mechanism for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the trigger is guided through the housing with a complementary cross-sectional contour, then the trigger is properly guided during actuation, but the trigger cannot be rotated to adjust the stroke after assembly
Solution Approach 1:
The trigger is divided into two separate parts: a first trigger part that provides guidance through complementary contours with the housing, and a second trigger part that can be rotated on the first trigger part to adjust the stroke. This segmentation allows the guidance function and adjustment function to be independent of each other.
Solution Approach 2:
The second trigger part is rotatably mounted on the first trigger part, creating a nested structure where one component is mounted on another. This allows the adjustment mechanism to be integrated within the guided trigger structure without interfering with the guidance function.
2Ease of operation
If the trigger and rod are adjusted outside the housing before assembly, then the trigger can be adjusted, but the adjustment process becomes cumbersome when the housing is shortened
Solution Approach 1:
By separating the guidance function (first trigger part) from the adjustment function (second trigger part), the system allows adjustment to be performed independently of the housing length, eliminating the need to disassemble and reassemble guide elements when the housing is modified.
Solution Approach 2:
The first trigger part acts as an intermediary between the housing and the second trigger part, providing a stable guided structure that remains unaffected by housing modifications while allowing the adjustment mechanism to operate independently.
3Reliability
If a bearing and guide element is inserted into the housing to guide the trigger, then the trigger is guided and supported, but the guide element is lost or must be laboriously removed when the housing is shortened
Solution Approach 1:
The guidance function is merged into the trigger structure itself through the complementary cross-sectional contours of the first trigger part and housing, eliminating the need for separate removable guide elements that would be lost or difficult to reinstall.
Solution Approach 2:
The first trigger part serves multiple functions: it provides guidance through complementary contours, supports the rotatable second trigger part, and maintains its functionality regardless of housing length modifications, making the system universally adaptable.
Data Source
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AI summary
Automatically lowering seal - with a housing (1), - with a sealing strip (2, 3) comprising a retaining strip (2) and a sealing profile (3), - with a mechanism by which the sealing strip (2, 3) is movably mounted in the housing (1), - wherein the mechanism has a trigger (4, 5) and a rod (6), - wherein the trigger (4, 5) and the rod (6) are connected to each other, - wherein the relative position of the trigger (4, 5) to the rod (6) is adjustable, - wherein the trigger (4, 5) has a first trigger part (4) and a second trigger part (5), - wherein the first trigger part (4) is slidably guided by the housing (1) and wherein the second trigger part (5) is not slidable relative to the first trigger part (4), but is rotatably mounted on or in the first trigger part (4).