Gypsum Wall Hanger Tooth Structure for Heavy Load Support
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Solution Overview
Problem
Existing hangers designed for wooden walls or chipboards are not suitable for gypsum wallboards, and expansion bolts used for heavier loads in gypsum wallboards leave un-aesthetic holes when removed.
Innovation Solution
A hanger with an intermediate flat plate and attachment tooth elements, featuring a 'S'-shaped design with sabre-shaped wing tooth elements and a bent hook portion, allowing secure attachment and removal without damaging the wall, capable of supporting loads exceeding 25 kg without leaving holes or marks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an inclined central pin is used to attach a hanger to the wall, then the hanger can be easily attached to wooden walls or chipboards, but it is not suitable for gypsum wallboards
Solution Approach 1:
The attachment means features three projecting tooth elements with different configurations: a central tooth element and two wing tooth elements with sabre shapes. Each tooth element is designed to interact differently with the gypsum wallboard material, creating localized engagement points that distribute stress and prevent pull-out, thereby adapting the single attachment device to the specific requirements of gypsum wallboards.
Solution Approach 2:
The attachment means is divided into multiple separate tooth elements (central and two wings) rather than a single pin. This segmentation allows each tooth to independently engage with the wallboard, providing multiple anchoring points that collectively secure the hanger to gypsum wallboards, which cannot be achieved with a single inclined pin.
2Strength
If expansion bolts or plugs are used to support heavier pictures in gypsum wallboards, then the load-bearing capacity is increased, but holes are created in the wall that remain visible after removal
Solution Approach 1:
The design extracts the harmful expansion mechanism from the attachment system. Instead of using expansion bolts that require pre-drilled holes and create visible damage upon removal, the invention uses projecting tooth elements that penetrate the wallboard surface minimally and can be removed cleanly, taking out the expansion function while retaining the load-bearing capability through the tooth engagement geometry.
Solution Approach 2:
The hanger is designed as a temporary, removable attachment device that can be installed and removed multiple times without permanent damage to the wallboard. The tooth elements are configured to provide sufficient holding power during use but allow clean removal, making the hanger suitable for temporary displays or rentals where wall aesthetics must be preserved.
3Device complexity
If the hanger is designed with a simple inclined pin for easy attachment, then the device complexity is reduced, but the attachment means cannot provide secure engagement with gypsum wallboards
Solution Approach 1:
The attachment means employs asymmetric tooth element configurations, particularly the wing tooth elements with sabre shapes that have different geometries on each side. This asymmetry allows the teeth to engage the wallboard material in a specific direction with high friction and mechanical interlocking, providing secure engagement while maintaining a relatively simple overall structure that can be manufactured as a single piece.
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 hanger provides secure attachment and removal from gypsum wallboards without causing damage, supporting heavy loads while maintaining aesthetics.
Implementation Method 1
the two wing tooth elements will be bended sidewise when the hanger is attached to a wallboard
Implementation Method 2
the blunt angle is straightened out during mounting or pressing the attachment means into the wallboard
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a hanger (10) for attachment to wallboards (13), preferably made of gypsum or the like. The hanger (10) is at one end provided with attachment means (11) intended to be forced into said wallboard (13). The attachment means (11) comprises at least one, preferably three attachment tooth elements (14A,14B,14C). At its opposite end, the hanger (10) end is provided with a hook shaped body (12), for example intended for suspension of objects. In its unattached state the hanger (10) has a substantially "S"-formed shape, the attachment means (11) having a substantially straight portion, that an intermediate flat plate portion (15) is positioned between said attachment means (11) and a bent hook part (16) positioned at the opposite end of the hanger (10), said flat plate portion (15) forming an angle of approximately 90° with the attachment means and a blunt angle with said bent hook portion (16), the portion of the bent hook portion (16) positioned adjacent the flat plate portion (15) also being flat and straight.