Plasterboard Attachment Assembly for Heavy-Load Front-Side Mounting
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Solution Overview
Problem
Conventional attachment systems for plasterboard walls are inadequate for supporting high loads, require complex operations to install, and often compromise the stability and structure of the wall, especially when trying to attach heavy objects like radiators or shelves.
Innovation Solution
An attachment system comprising a single-piece plastic plate with a bushing and a single-piece metal counter-plate, where the bushing is integrated into the plate and allows the counter-plate to rotate, providing a stable and removable solution that can be installed on the front side of the plasterboard without accessing the rear, using a through hole of circular shape with a diameter between 20-50 mm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional dowels are used for plasterboard attachment, then installation is simple, but the attachment cannot support high loads and can only be used once
Solution Approach 1:
The attachment system is divided into separate components: a plate with an integrated bushing that remains in the wall, and a removable counter-plate with a support element. This segmentation allows the system to be reused by removing and reattaching the counter-plate, while the bushing provides stable, high-strength anchoring in the plasterboard wall.
Solution Approach 2:
The bushing is integrated into the plate, forming a nested structure where the bushing is embedded within the plate body. This integrated design simplifies installation (the entire assembly is inserted through the wall) while providing robust load-bearing capacity through the combined structure of the plate and bushing.
2Strength
If dowels with expanding elements are used, then load-bearing capacity increases, but the attachment cannot be removed and reused
Solution Approach 1:
The system separates the permanent anchoring function (bushing in the plate) from the removable attachment function (counter-plate with support element). The bushing remains embedded in the wall providing stable anchoring, while the counter-plate can be removed and reattached, enabling reuse without compromising load-bearing capacity.
Solution Approach 2:
The counter-plate and support element can be removed from the wall and recovered for reuse. The bushing remains in the wall as a permanent fixture, but the main attachment components are recoverable, allowing the system to be adapted and reused in different positions or applications.
3Ease of manufacture
If square or rectangular apertures are made in the wall for plate insertion, then the plate can be installed, but complex operations are required that affect wall quality and stability
Solution Approach 1:
The bushing has a circular cross-section that matches a simple circular hole in the plasterboard wall. This curved geometry allows for easy drilling and installation using standard circular drill bits, avoiding the need for complex square or rectangular aperture cutting operations that would damage the wall structure.
Solution Approach 2:
Instead of inserting a square plate through a square hole (which requires complex cutting), the system uses a circular bushing integrated into the plate that passes through a simple circular hole. The square or rectangular support function is achieved through the counter-plate design rather than the aperture shape, inverting the approach to simplify wall preparation.
4Strength
If multiple dowels are installed to support heavy loads, then load capacity increases, but the installation process becomes more complex and time-consuming
Solution Approach 1:
The plate integrates multiple functional elements into a single component: the bushing for wall insertion, the support element receptacle, and the mounting interface. This merging allows the entire attachment assembly to be installed as one unit through a single circular hole, improving productivity while maintaining the load support capacity needed for heavy loads like radiators.
Data Source
Figure 1
Figure 2a~2b
Figure 3~4
AI summary
Attachment system for plasterboard, comprising at least a plate (14) able to be positioned on a first side (26) of a plasterboard wall (25) and at least a counterplate (17) able to be positioned on a second side (24) of the plasterboard wall (25), opposite the first side (26), and able to be screwed to a support element (29) associated with the plate (14), the counter-plate (17) is configured to rotate with respect to the support element (29) from at least a position of insertion in the plasterboard wall (25) and at least a resting position on the second side (24), obtained following the screwing and clamping of the support element (29).