Plasterboard Corner with Adhesive Strip for Angular Fixation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional preformed plasterboard corner pieces with cardboard facing face challenges such as large volume during transport, risk of breakage, and inefficient on-site gluing, which often result in imprecise and weak angular joints, especially when using double-sided adhesive tape.
Innovation Solution
A specially milled cross-section in plasterboards with a rectangular countersink and a triangular countersink allows for precise fixation using a double-sided adhesive strip without a foam layer, combined with traditional gluing for durable bonding, ensuring a rigid and precise angular joint without gaping seams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional preformed corner pieces are glued at the manufacturer, then precise angular fixation is achieved, but large volume during transport and risk of breakage occur
Solution Approach 1:
The corner piece is divided into two separate parts: the plasterboard substrate and the adhesive strip. The adhesive strip is applied to the corner piece at the manufacturer, but the actual bonding occurs at the construction site when the corner piece is installed. This segmentation allows the corner piece to be transported in a compact flat state rather than pre-assembled, reducing transport volume while maintaining precision through the specialized adhesive application.
Solution Approach 2:
The adhesive strip is pre-applied to the corner piece at the manufacturer in a controlled environment, preparing it for precise installation. This preliminary action ensures the adhesive is positioned correctly before the corner piece is transported and installed, combining the benefits of factory preparation with on-site installation flexibility.
2Ease of operation
If double-sided adhesive tape is used for gluing, then ease of operation is improved, but bonding strength and durability deteriorate
Solution Approach 1:
The adhesive strip uses a unique formulation without a foam layer, which changes the physical parameters of the adhesive. This non-foaming characteristic allows for precise positioning and visible alignment during installation (improving ease of operation) while maintaining strong bonding capability through the specific adhesive composition and application method.
Solution Approach 2:
The adhesive strip acts as an intermediary element between the corner piece and the substrate. It provides a controlled bonding interface that combines the ease of adhesive application with the strength of mechanical bonding, serving as a mediator that bridges the gap between simple installation and strong attachment.
3Strength
If traditional gluing methods are used on site, then bonding strength is achieved, but manufacturing precision and angular accuracy deteriorate
Solution Approach 1:
The adhesive strip is pre-applied at the manufacturer in a controlled environment, ensuring precise positioning and alignment. This preliminary action transfers the precision requirements from the on-site installation to the factory setting, where angular accuracy can be maintained while still allowing for strong bonding during installation.
4Shape
If V-shaped groove is used for corner pieces, then traditional appearance is maintained, but gaping joints and variable opening occur
Solution Approach 1:
Instead of using a V-shaped groove that creates gaping joints, the invention inverts the approach by using a flat surface with a precisely applied adhesive strip. This inversion eliminates the gaping joint problem while maintaining the traditional corner appearance through the adhesive strip's positioning and the corner piece's design.
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
This method enables the production of preformed corner pieces of various sizes and shapes with precise angular fixation and enhanced durability, matching the strength of traditional V-milled parts while maintaining a sharp outer edge and preventing gaps in the inner corner joint.
Implementation Method 1
an adhesive strip or other means of connection by gluing
Implementation Method 2
additionally gluing in a durable manner the angle thus formed by means of a traditional glue
Data Source
Figure 1~2
Figure 3~5
Figure 6~10
AI summary
The gypsum board (1) has cardboard facings with a recess, allowing the folding of a cardboard (3) in a zone of the recess, containing a padding tape (5), where the recess is formed by a rectangular countersunk hole (7) up to the middle of the board (1). A groove (6) arranged in one of the sides of the countersunk hole extends up to an opposed edge of the board (1) without completely traversing the board (1), and an adhesive material is applied on the other side of the countersunk hole.