Interlocking Construction Profiles That Preserve Rigidity

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Solution Overview

Problem

Existing construction structures face challenges in maintaining structural integrity and efficiency due to deformation issues, particularly when using mixed auxiliary structures with perpendicular profiles, which require numerous joint pieces and increase installation time and cost, while compromising the moment of inertia and load capacity.

Innovation Solution

A profile system that joins primary and secondary profiles without the need for additional joint pieces, maintaining continuity by aligning perforations near the neutral fiber and elevating secondary profile support points, allowing for a durable and efficient coupling mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If mixed auxiliary structures with perpendicular profiles are used to support large loads or large spans, then the load capacity and span capability are improved, but the number of joint pieces increases significantly, increasing installation time and cost

Engineering Contradiction:
Improveload capacityVSAvoidnumber of joint pieces
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent merges the joint piece function into the profile itself by integrating locking mechanisms directly into the C-shaped and U-shaped profile structures. This eliminates separate joint pieces while maintaining the mixed auxiliary structure's load capacity and span capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The profile design incorporates multiple functions within single structural elements - the C-shaped and U-shaped profiles simultaneously provide structural support, connection, and positioning functions, reducing the need for specialized joint pieces for each connection type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If perforations are made in primary profiles to facilitate secondary profile fixing, then the ease of installation is improved, but the moment of inertia and load capacity of primary profiles are reduced

Engineering Contradiction:
Improveease of installationVSAvoidmoment of inertia
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The patent applies local quality by making perforations only in the web of the C-shaped profile (the vertical section), avoiding perforations in the wings (horizontal sections) where the moment of inertia is most critical. This localized approach allows easy secondary profile fixing while preserving the primary profile's structural integrity.

Inventive Principle:
Principle #3Local quality

3Strength

If the bottom of primary and secondary profiles are at the same level to improve mechanical behavior, then the rigidity is improved, but the profiles interfere with each other, requiring more complex joint solutions

Engineering Contradiction:
ImproverigidityVSAvoidjoint complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent resolves the interference issue by using the vertical dimension - the C-shaped profile extends below the U-shaped profile level, creating a stepped arrangement. This dimensional differentiation eliminates interference while maintaining rigidity through the integrated locking mechanism that connects profiles at different levels.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Manufacturing precision

If adjustment of profile separation is carried out during installation to prevent separation, then the positioning accuracy is improved, but the installation time increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoidinstallation time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent incorporates preliminary action by including adjustment features (such as adjustable positioning elements) in the profile design that allow for quick separation adjustment during installation. This preliminary design of adjustment capabilities enables both accurate positioning and reduced installation time by eliminating complex post-installation adjustments.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4493773B1Profile system for a construction structure and installation procedure
Publication Date: 2026.03.25 PLADUR GYPSUM SAU
  • EP4493773B1 patent drawingFigure 1
  • EP4493773B1 patent drawingFigure 2
  • EP4493773B1 patent drawingFigure 3a~3b

AI summary

Profile system (4) of a primary profile (1) and a first secondary profile (2) where the system comprises a primary element (10) with a primary web (11) with a perforation (12) where a protrusion (17) separates a locking slot (13) and a passage slot (14) and at least one primary wing (15), where the web (11) and/or wing (15) comprise a locking flange (16); a first secondary element (20) with a secondary web (21), at least one secondary wing (22), and a groove (24) adaptable to the locking flange (16) of the primary element (10) located in the web (21) or the wing (22); where the first secondary element (20) is inserted into the passage slot (14) and is configured to tilt to the locking slot (13), by aligning the groove (24) on the locking flange (16) and its installation procedure.