Covering Strip With Elastic Projections for Window Sealing
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Solution Overview
Problem
Existing covering strips for window frames, doors, and facades face challenges in easy mounting and achieving a good seal between elements, leading to heat loss and structural reinforcement issues.
Innovation Solution
A plastic covering strip with a bent upper surface and a middle wall forming an inner chamber, featuring elastically deflectable projections and a mounting element with specifically dimensioned tongues and recesses to ensure secure and stable attachment, preventing separation and enhancing thermal sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a covering strip is made rigid to ensure tight adhesion to profiles, then sealing performance improves, but mounting complexity increases
Solution Approach 1:
The covering strip is divided into a rigid main body (for sealing) and separate mounting elements with clips (for easy attachment). The mounting elements are detachably connected to the profile, allowing the main sealing structure to remain simple while the mounting function is independently simplified.
Solution Approach 2:
Mounting elements with clips serve as intermediaries between the covering strip and the profile. These clips can be easily attached to the profile and then receive the covering strip, simplifying the overall mounting process while maintaining the rigidity of the sealing structure.
2Ease of manufacture
If a covering strip uses simple construction for ease of manufacture, then manufacturing cost decreases, but structural rigidity and sealing capability deteriorate
Solution Approach 1:
The covering strip structure is segmented into a simple main wall body (easy to manufacture) and separate mounting elements (provide rigidity). This allows the main sealing structure to be manufactured simply while the mounting elements contribute to overall structural stability.
Solution Approach 2:
The covering set combines plastic material for the covering strip (easy to manufacture, good sealing) with metal or rigid plastic mounting elements (provide structural rigidity). This composite approach allows each component to be optimized for its specific function while maintaining manufacturing simplicity.
3Ease of operation
If mounting elements use clips for easy attachment, then ease of installation improves, but sealing effectiveness between covering strip and profile deteriorates
Solution Approach 1:
The mounting system is segmented into clips (for easy attachment) and a separate sealing interface (for effective sealing). The clips securely attach the mounting element to the profile, while the main wall of the covering strip forms the sealing surface, separating the mounting function from the sealing function.
Solution Approach 2:
The mounting element with clips acts as an intermediary that provides both easy attachment (through clips) and sealing support (through its structure that holds the covering strip). The clips simplify installation while the mounting element's design ensures the covering strip maintains proper sealing contact with the profile.
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 solution provides a simple, rigid, and securely mounted covering strip that adheres tightly to profiles, reducing heat loss and improving structural integrity by ensuring a tight seal between window or door elements.
Implementation Method 1
at least one of which is elastically deflectable
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
In a covering strip (1) of plastic mountable to a mounting element (3) and forming with the covering strip (1) a covering set (5), whereby the covering strip (1) of the set comprises a main wall (10) with an upper surface (11) bent in a region of outer edges (12, 13) and a middle wall (20) connected to the main wall (10) in the region of the outer edges (12, 13) and surrounding together with the main wall (10) a middle inner chamber (19), the middle wall (20) has a gap (21) extending parallel to a longitudinal axis (4) of the covering strip (1) and dividing the middle wall (20) into two parts or portions in the form of projections (22, 23) facing each other, at least one of which is elastically deflectable, whereas the mounting element (3) has a base (32) and a main part (31) having a cross-section placed in the middle of a contour of the middle inner chamber (19), whereby the mounting element (3) on opposite sides of the main part (31) has tongues (33, 34), lower surfaces (35, 36) of which are spaced from the lower surface (37) of its base (31) by a distance that is not smaller than the thickness (g) of the projections (22, 23), whereby the width (s) of the gap (21) is not greater than the distance (b) between the outer edges of the tongues (33, 34) located on the opposite sides of the main part (31) of the mounting element (3) and not smaller than the width (a) of the base (32) of the mounting element (3) to prevent separation of the covering strip (1) and the mounting element (3) after fixing the covering strip (1) onto the mounting element (3).