Self-Cutting Undercut Anchor for Faster Blind-Hole Fastening
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Solution Overview
Problem
The production of undercut anchors in existing technologies is time-consuming and costly, requiring specialized tools and trained personnel, and is prone to errors and material damage, especially when dealing with harder materials.
Innovation Solution
The development of an undercut anchor that can independently create the undercut in the joining partner by rotating and spreading its arms, eliminating the need for a separate undercut facade drill and simplifying the installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a separate undercut facade drill is used to create the undercut, then the undercut can be formed, but the process becomes time-consuming and costly
Solution Approach 1:
The patent combines the functions of the anchor body and the undercut-forming tool into a single integrated component. The anchor body itself includes cutting edges that form the undercut during installation, eliminating the need for a separate undercut facade drill. This merging of functions directly resolves the technical contradiction by reducing the number of steps and tools required.
Solution Approach 2:
The anchor body performs the undercut formation function for itself during the installation process. As the anchor is inserted and expanded, its cutting edges automatically create the undercut in the substrate. This self-service approach eliminates the need for specialized external tools and trained personnel, thereby reducing installation time and cost.
2Manufacturing precision
If a separate undercut facade drill is used, then the undercut can be created, but specialized tools and trained personnel are required
Solution Approach 1:
The patent integrates the undercut-forming capability directly into the anchor body structure. The cutting edges are formed as integral parts of the anchor body, combining the functions of the anchor and the undercut drill into one component. This eliminates the need for specialized external tools and reduces device complexity.
Solution Approach 2:
The anchor body creates its own undercut during installation without requiring external specialized equipment. The cutting edges on the anchor body perform the undercut formation function automatically as the anchor is inserted and expanded, making the process accessible to personnel without specialized training.
3Manufacturing precision
If a separate undercut facade drill is used, then the undercut can be formed, but the risk of material damage and errors increases
Solution Approach 1:
The patent combines the anchor body and undercut-forming function into a single integrated component. This integration ensures that the undercut is formed precisely at the correct location and depth during the anchor installation process itself, eliminating errors that could occur from separate operations and reducing the risk of material damage.
Solution Approach 2:
The anchor body creates its own undercut during installation, ensuring precise and consistent undercut formation without the risks associated with separate drilling operations. This self-service approach eliminates the need for multiple operational steps that could introduce errors or cause material damage, thereby improving fastening reliability.
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 allows for a simpler, more reliable, and cost-effective fastening process, as the undercut anchor can create the necessary undercut itself, reducing the need for specialized tools and trained personnel, and ensuring a stable and secure form-fit connection.
Implementation Method 1
pressing the undercut shoulders into this undercut of the joining partner in order to realize a captive connection
Data Source
AI summary
An undercut anchor 2; 30, which facilitates the formation of a corresponding undercut in a blind hole for receiving the undercut anchor 2; 30, is formed to independently cut or form this undercut by rotating and spreading the undercut anchor 2; 30. Furthermore, a setting tool for forming this undercut at the bottom of the blind hole in the joining partner is proposed. Finally, a method of forming an undercut at the bottom of a blind hole using the setting tool is disclosed.