Board Fixture for Flush Adhesive Jointing
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Solution Overview
Problem
The existing methods for installing building boards are time-consuming, labor-intensive, and prone to errors, leading to non-flush joints, air leakage, and moisture issues due to screwing, which causes damage to the boards and increases energy losses and the risk of mold growth. Additionally, they result in repetitive strain injuries for installers and do not allow for easy adjustment or use of environmentally friendly adhesives.
Innovation Solution
A board fixture with a front and rear flange portion and a web portion that forms open spaces for receiving edge portions of building boards, allowing for the application and distribution of an adhesion agent to create a flush, air and moisture-proof joint without penetrating fixing devices, enabling the use of arbitrary board widths and facilitating alignment and assembly of multiple layers without underlying supports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screwing is used to install building boards, then the boards are securely fixed to the support, but the screw heads must be drawn far into the board surface requiring filling work, and there is a risk of crushing the plaster material which jeopardizes cohesive force
Solution Approach 1:
The invention extracts the harmful screwing operation from the installation process and replaces it with adhesive bonding. The adhesive is applied to the support structure and bonds the building boards directly without penetration, eliminating screw head depression filling and material crushing while maintaining secure fixation.
Solution Approach 2:
The mechanical screwing system is replaced with a chemical bonding system using adhesive. The adhesive creates a bond between the support and building boards through chemical adhesion rather than mechanical penetration, eliminating the need for screw heads and associated finishing work while preserving the cohesive force of the plaster material.
2Productivity
If sheet metal studs are used to support building boards, then the installation is simplified, but the flange creasing caused by screwing causes the next building board to end up non-flush with the first board
Solution Approach 1:
The invention removes the screwing operation that causes flange creasing from the installation process. By using adhesive bonding instead of mechanical fastening, the flange remains undamaged and maintains its original shape, ensuring that adjacent building boards end up perfectly flush with each other while preserving installation efficiency.
Solution Approach 2:
The adhesive is applied to the flange before the building board is positioned, creating a bond that prevents flange deformation and creasing during installation. This preliminary action protects the flange from the harmful effects of subsequent screwing operations on adjacent boards, ensuring consistent flush mounting across all boards.
3Stability of the object's composition
If screws are used to attach building boards, then the boards are securely fixed, but board movements due to swelling and shrinking create gaps between screw attachments and screws damage the moisture repellent coating
Solution Approach 1:
The mechanical screw fixation system is replaced with adhesive bonding that distributes stress more evenly across the board surface. The adhesive bond accommodates board swelling and shrinking movements without creating gaps or damaging the moisture repellent coating, eliminating air leakage paths and moisture intrusion risks while maintaining secure fixation.
Solution Approach 2:
The invention changes the bonding mechanism from localized mechanical penetration (screws) to distributed chemical adhesion (adhesive). This parameter change allows the bond to flex with board dimensional changes due to humidity variations, maintaining continuous coverage and preventing air and moisture infiltration while preserving the integrity of the moisture repellent coating.
4Strength
If traditional screwing methods are used, then building boards are installed on the joist structure, but the process is time-consuming and work-intensive requiring about 50 screws per board
Solution Approach 1:
The invention replaces the time-consuming mechanical screwing process with a faster adhesive bonding process. Instead of drilling and driving 50 screws per board, the adhesive is applied to the support structure and the board is positioned, creating a secure bond in a single operation that significantly reduces installation time and labor intensity while maintaining fixation strength.
Solution Approach 2:
The invention extracts the repetitive and time-intensive screwing operation from the installation process. By using adhesive bonding, the complex multi-step screwing process (drilling, positioning, driving, checking) is replaced with a simple apply-and-position operation, dramatically increasing productivity while ensuring secure board fixation.
5Shape
If building boards are joined with screws, then they are securely attached, but the screw heads must not leave a bump on the board surface requiring filling of screw head depressions and board joints
Solution Approach 1:
The invention replaces the mechanical screwing process that creates surface depressions with adhesive bonding that leaves the board surface completely intact. The adhesive is applied beneath the board edge or to the support structure, eliminating the need for screw heads and the subsequent filling and sanding work required to restore surface smoothness for painting or wallpapering.
Solution Approach 2:
The invention removes the entire screwing operation and associated surface damage from the installation process. By using adhesive bonding, there are no screw heads to protrude or create depressions, eliminating the need for any surface preparation work such as filling and sanding, thereby preserving the original smoothness of the building board surface.
6Object-affected harmful factors
If adhesive is used to join building boards, then environmentally friendly bonding is achieved, but the adhesive must be properly distributed to ensure strong bonds between boards and to the support
Solution Approach 1:
The invention segments the adhesive application into multiple controlled zones: adhesive is applied to the support structure in a pattern that ensures proper distribution, and additional adhesive may be applied to the board edge. The board fixture with openings further segments the adhesive application, allowing it to be distributed through specific channels to ensure complete and uniform bonding between the board, fixture, and support.
Solution Approach 2:
The board fixture acts as an intermediary device that facilitates proper adhesive distribution. The fixture with its openings and channels guides the adhesive from the application point to the bonding interfaces, ensuring uniform distribution and complete coverage without requiring complex manual application techniques, thereby achieving strong bonds while maintaining environmental benefits.
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
A board fixture (1) for flush joining of building boards (19, 24), said board fixture comprising a front flange portion (2), a rear flange portion (3) and a web portion (4) connecting the flange portions (2, 3), wherein the flange portions (2, 3) and the web portion (4) form open spaces (5, 6) for receiving an edge portion (20, 25) of the building boards (19, 24). The web portion (4) comprises openings (7, 15) for allowing an adhesion agent (22) to spread between the first open space (5) and the second open space (6) for the formation of an adhesion joint (26) between the edge portions (20, 25) of the building boards (19, 24). The front flange portion (2) comprises openings (12, 16) to allow application of the adhesion agent (22) into the spaces (5, 6).