Corner Profile Expansion Joint for Precise Wall-Floor Transitions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing expansion joint profiles fail to provide a durable, high-quality transition between adjacent walls and floors, especially at corners with non-exact right angles, and often result in unsightly or uneven edges, particularly when relative movements occur.
Innovation Solution
A corner profile expansion joint design featuring two profile parts with contact legs and joint webs, utilizing an elastic silicone filling material that adheres without additional adhesives, allowing for flexible angle adjustments and assembly without additional structural components, forming a one-piece prefabricated unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional expansion joint profiles are used at corners, then the corner area can be covered, but the transitions form unsightly or uneven edges and fail to provide durable, high-quality transitions between adjacent walls or floors
Solution Approach 1:
The expansion joint profile is divided into two separate profile parts (first profile part and second profile part) that can be independently attached to adjacent walls or floors. Each profile part has its own contact leg and joint web, allowing precise fitting to surfaces while maintaining a clean, uniform edge appearance. The segmentation enables each component to be optimized for its specific function while contributing to overall durability.
2Manufacturing precision
If expansion joint profiles are designed for exact right angles, then precise corner coverage is achieved, but corners with non-exact right angles cannot be properly accommodated
Solution Approach 1:
The joint web is designed with variable thickness, being thickest at the corner and progressively thinner toward the free joint edge. This gradient in thickness allows the profile to accommodate various corner angles (from exact right angles to angles with maximum deviation of ±45°) while maintaining precise edge alignment and clean appearance. The elastic filling material further enables adjustment to match the specific angle of any corner.
Solution Approach 2:
The expansion joint profile incorporates elastic properties through the filling material and flexible joint web design, allowing the structure to dynamically adapt to different corner angles and relative movements between adjacent walls or floors. This dynamic capability enables the profile to maintain its function and appearance across a range of angular deviations without requiring precise pre-measurement or custom fabrication.
3Strength
If multiple additional structural components and adhesive materials are used to assemble expansion joint profiles, then structural integrity is improved, but assembly complexity and additional work steps increase
Solution Approach 1:
The expansion joint profile integrates multiple functions into a unified structure: the profile parts provide structural support and edge definition, the joint web creates the joint between profile parts, and the elastic filling material simultaneously bonds the components together and accommodates movement. This merging eliminates the need for separate adhesive materials and additional structural components, reducing assembly complexity while maintaining structural integrity.
Solution Approach 2:
The elastic filling material serves multiple functions simultaneously: it acts as the bonding agent between profile parts, provides structural reinforcement, accommodates relative movements, and seals the joint. This self-service capability of the filling material eliminates the need for additional adhesives and structural components, simplifying both the product design and installation process.
4Ease of operation
If expansion joint profiles require additional assembly work steps and adhesive materials, then installation flexibility is maintained, but productivity and ease of operation are reduced
Solution Approach 1:
The expansion joint profile is prefabricated as a complete, ready-to-install unit with all components (profile parts, joint web, and elastic filling material) already integrated. This preliminary assembly eliminates the need for on-site cutting, adhesive application, and component assembly, allowing installers to simply attach the complete profile to the corner. This significantly improves both ease of operation and productivity while ensuring consistent, high-quality results.
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 ensures a durable, high-quality, and aesthetically pleasing transition between walls and floors, accommodating various corner angles and movements, while eliminating the need for additional assembly steps and ensuring a clean, flush installation.
Implementation Method 1
An elastic filling material is arranged between the first and the second joint web, which closes the joint between the two joint webs
Implementation Method 2
The elastic filling material is in particular made of silicone and adheres to the joint webs without any additional adhesive material
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to an expansion joint profile (1) designed as a corner profile with a first profile part (2) having a first bearing leg (4) and a second profile part (3) having a second bearing leg (5), wherein the first bearing leg (4) is aligned at a right angle to the second bearing leg (5) in order to be brought into the fastening position adjacent to a corner in the intended use, wherein a first joint web (6) is formed on the first bearing leg (4) and a second joint web (7) is formed on the second bearing leg (5), which define a joint (10) between them which covers the corner in the intended use, and wherein an elastic filling material (8) is arranged between the first and the second joint web (6, 7) which closes the joint (10).