Wallboard Anchor Thinwall Split Structure for Pull-Out Retention
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Solution Overview
Problem
Existing wall anchors for drywall and other friable wallboard materials face challenges in manufacturability and performance, particularly in terms of efficient installation and retention without pre-drilling, as well as effective expansion and retention mechanisms.
Innovation Solution
The anchor design features an elongated body with a driving end, a wall boring end, and a main body portion with threads, diametrically opposed thinwall segments, and cutting teeth, allowing for axial split and enhanced retention through thread engagement with the wallboard material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If diametrically opposed through slots are used in the anchor body wall to facilitate split, then ease of manufacture is improved, but structural strength deteriorates
Solution Approach 1:
The anchor body wall is segmented into thinwall segments by diametrically opposed through slots, allowing the wall to split axially during installation. This segmentation facilitates manufacturing while the segments maintain structural integrity through their connection to the anchor body core.
Solution Approach 2:
The thinwall segments are strategically positioned in specific regions of the anchor body wall where splitting is desired, while other regions maintain full wall thickness and strength. This local modification allows splitting functionality without compromising overall structural strength.
2Ease of operation
If the anchor body is designed to split axially during installation, then ease of operation is improved, but device complexity worsens
Solution Approach 1:
The thinwall segments are pre-formed in the anchor body during manufacturing, creating predetermined lines of weakness that will naturally split during installation. This preliminary preparation simplifies the installation operation while the manufacturing process handles the added complexity.
3Strength
If threads extend along regions of the main body portion, then retention strength is improved, but manufacturing precision requirements worsen
Solution Approach 1:
Threads are applied selectively to specific regions of the main body portion where retention strength is most needed, rather than uniformly across the entire anchor body. This localized threading improves retention while reducing the overall manufacturing precision requirements.
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 design facilitates easy installation without pre-drilling, provides strong retention against axial pull-out, and enhances manufacturability by utilizing thinwall segments for controlled expansion and stress relief.
Implementation Method 1
diametrically opposed first and second thinwall segments formed in the wall of the main body portion to facilitate axial split of the main body portion along lines of weakness created by the first and second thinwall segments
Implementation Method 2
at least one thread extending along regions of the main body portion
Implementation Method 3
thread engagement with the wallboard material
Implementation Method 4
wall boring end
Implementation Method 5
cutting teeth
Data Source
AI summary
An anchor for wallboard installation includes an elongated anchor body including a driving end and a wall boring end. The anchor body has a main body portion running from the driving end toward the wall boring end, and at least one thread extending along regions of the main body portion. The anchor body includes an internal bore surrounded by a wall of the main body portion. The anchor body includes diametrically opposed first and second thinwall segments formed in the wall of the main body portion to facilitate axial split of the main body portion along lines of weakness created by the first and second thinwall segments.