Expansion Anchor With Setting Control Element
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing expansion anchors lack a reliable method to verify if the expansion tabs are sufficiently expanded after installation, which can result in an inadequate clamping effect.
Innovation Solution
Incorporating a setting control element that moves longitudinally with the expansion element, allowing for precise control and verification of the expansion tabs' position, which can be easily integrated into the anchor's design without interfering with the expansion process, and can be partially removed after engagement for a flush fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an expansion element is provided to push the expansion tabs laterally, then the expansion action is achieved, but the position of the expansion element cannot be determined with sufficient precision after insertion
Solution Approach 1:
A setting control element is introduced as an intermediary component that is shifted by the expansion element during insertion. This setting control element serves as a visible indicator to determine the position of the expansion element without requiring complex measurement systems. The setting control element translates the internal expansion element position into an externally observable state.
2Reliability
If the setting control element is made to indicate the expansion element position, then the position verification is enabled, but the device structure becomes more complex
Solution Approach 1:
The setting control element is designed to perform multiple functions: it indicates the position of the expansion element, can be used to control the insertion depth, and after engagement can be partially removed to allow flush mounting. This multi-functionality reduces the need for separate components for each function.
Solution Approach 2:
The setting control element is designed to be temporarily part of the assembly during installation and verification, then can be partially removed after engagement to enable flush mounting. This allows the setting control element to serve its indication purpose during installation and then be discarded from the final configuration.
3Ease of operation
If the setting control element is guided in a channel or recess, then the movement path is defined and jamming is prevented, but the manufacturing complexity increases
Solution Approach 1:
The main part is segmented to include a separate channel or recess that guides the setting control element. This segmentation allows the channel to be formed as a distinct feature, which can be manufactured using standard machining operations, and prevents interference between the setting control element and other components.
Data Source
AI summary
An expansion anchor is disclosed. The expansion anchor has an elongated main part having a receiving area extending substantially in the longitudinal direction, into which an expansion element can be inserted in the longitudinal direction, to press expansion tabs laterally from an initial position to an expanded position. At least one setting control member can be moved in the longitudinal direction on the expansion anchor and it is moved by movement the expansion element relative to the main part.