Toggle Anchor Assembly for Secure Hollow Wall Fastening
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wall anchor technologies are inadequate for securely fastening objects in hollow walls, particularly those made of friable materials like gypsum, as they often fail to provide a reliable and stable connection.
Innovation Solution
The proposed anchor assembly consists of a strap member, a spring member, a toggle member pivotally mounted to the strap, and a locking member that can be displaced between insertion and retention positions, allowing the toggle member to extend behind the wall at an angle and the locking member to abut the wall, securing it with a fastener.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional anchor assembly is used in hollow walls, then installation is simple, but the connection reliability is insufficient for securely fastening objects
Solution Approach 1:
The anchor assembly is divided into distinct functional segments: a toggle member with pivotable arms for penetration and anchoring, a spring member for biased movement, and a locking member for securing. This segmentation allows each component to perform its specific function efficiently while contributing to overall reliability without excessive complexity.
Solution Approach 2:
The toggle member incorporates pivotable arms that can dynamically change orientation during installation and loading. The spring member provides dynamic biased movement, allowing the assembly to adapt to wall variations and maintain reliable connection under different stress conditions.
2Reliability
If the toggle member is aligned with the strap for insertion, then insertion through the hole is easy, but the anchoring effectiveness behind the wall is reduced
Solution Approach 1:
The toggle member is preliminarily aligned with the strap member during insertion to facilitate easy passage through the wall hole. Once inserted, the spring member automatically biases the toggle member into a second position where the arms are angled relative to the strap, creating effective anchoring behind the wall without requiring manual adjustment.
Solution Approach 2:
The toggle member transitions dynamically from a first position (aligned with strap for insertion) to a second position (angled for anchoring). This automatic positional change ensures both easy insertion and effective anchoring without compromising either function.
3Reliability
If the locking member is displaced towards the wall to abut it, then the wall is imprisoned securely, but the installation process becomes more complex
Solution Approach 1:
The locking function is separated into a distinct locking member that can be independently displaced along the strap member. This segmentation allows the locking action to be performed separately from the insertion process, providing secure wall imprisonment while maintaining a relatively simple overall installation procedure.
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 solution provides a stable and secure fastening mechanism for hollow walls by effectively imprisoning the wall between the toggle member and the locking member, allowing for the secure attachment of fasteners and supporting objects without compromising the wall material.
Implementation Method 1
a spring member, a toggle member pivotally mounted to the strap member
Data Source
AI summary
An anchor assembly for walls comprises a toggle member and a strap member pivotally mounted together, and a locking member. In a first position, the toggle member is aligned with the strap member for insertion through the wall, whereas in a second position, the toggle member extends behind the wall at an angle relative to the strap member which extends from the toggle member through the hole in the wall. The locking member is adapted to be displaced along the strap member until it engages the wall and to be locked on the strap member. Therefore, the locking member and the toggle member are connected by the strap member and imprison the wall by abutting respectively the visible and hidden sides thereof. A fastener introduced through the locking member and the wall threadably engages an opening defined in the toggle member.