Wall Anchor Retention Structure to Prevent Over-Threading
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Solution Overview
Problem
Existing wall anchor systems require multiple tools and operations to hang objects, and self-drilling anchors can cause the anchor to thread deeper into the wall when installing fasteners, leading to inefficiencies and potential damage.
Innovation Solution
A wall anchor system with an anchor member and fastener member that includes a cutting feature, threads for insertion, and a snap-fit or twist-lock mechanism for secure engagement, allowing for easy installation and removal without additional torque.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a self-drilling anchor with external threads is used, then the anchor can be installed by screwing into the wall, but the anchor may undesirably continue to thread deeper into the wall when installing the fastener
Solution Approach 1:
The anchor body is divided into distinct functional zones: a threaded intermediate portion for wall insertion, a body portion with internal passage for fastener reception, and a head portion. This segmentation allows the threaded portion to engage the wall while the smooth body portion prevents further unwanted threading when the fastener is installed.
Solution Approach 2:
The smooth body portion of the anchor acts as an intermediary element between the threaded portion and the fastener. It transmits the fastening force from the fastener to the wall while its smooth surface prevents the anchor from threading deeper into the wall during fastener installation.
2Reliability
If traditional drilling and anchoring methods are used, then proper anchor installation is achieved, but multiple tools and operations are required
Solution Approach 1:
The patent combines multiple functions into a single anchor component: the anchor body includes both the threaded intermediate portion for wall engagement and the internal passage for fastener reception. This merging eliminates the need for separate drilling and anchoring operations, as the single anchor piece performs both functions.
Solution Approach 2:
The anchor is designed as a multi-functional component that can be installed in both drilled holes and directly into the wall using its self-drilling threaded portion. The same anchor body also provides the internal passage for receiving various fasteners, making it universally applicable to different installation scenarios.
Data Source
AI summary
A wall anchor system includes an anchor member installable into a hollow wall. The anchor member includes a body having a first end that extends to a second end through an intermediate portion. The body includes an internal passage having a fastener retaining feature provided adjacent the first end. A fastener member is operatively engageable with the anchor member.