Wave-Shaped Anchor Sleeve for Higher Crosswise Load Capacity
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Solution Overview
Problem
Existing anchors face challenges in achieving high load values, especially under crosswise loads, while being cost-effective and easy to handle, as they often require significant material and may not efficiently distribute forces.
Innovation Solution
The anchor features a wavy-shaped sleeve with alternating wave peaks and valleys, allowing for systematic deformation under crosswise loads, and an expansion area on the bolt that converts axial forces into radial forces for enhanced anchoring, using a bolt with an expansion element supported axially on the sleeve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional solid sleeve is used, then the anchor structure is simple and easy to manufacture, but the load values under crosswise loads are not sufficient and material usage is high
Solution Approach 1:
The patent applies this principle by using a thin-walled sleeve with a wavy shape instead of a solid sleeve. The wavy configuration allows the thin-walled structure to flex and deform systematically under crosswise loads, providing high load values while using significantly less material. The wave peaks and valleys create a flexible yet strong structure that can absorb and distribute crosswise forces effectively.
Solution Approach 2:
The patent applies this principle by introducing a wavy shape with curved surfaces instead of a straight cylindrical form. The wave peaks and valleys create varying curvature along the sleeve, which systematically deforms under crosswise loads to enhance load-bearing capacity. The curved geometry allows for more efficient stress distribution and material utilization compared to a straight sleeve.
2Strength
If expansion elements with webs are used, then the maximum radial extension and anchoring are improved, but the device complexity increases
Solution Approach 1:
The patent applies this principle by combining the expansion element with the sleeve into a single integrated component. The expansion element is formed as one piece with the wavy sleeve, eliminating the need for separate webs or additional anchoring components. This integration maintains the radial extension capability while reducing device complexity by removing unnecessary parts and simplifying the overall structure.
Solution Approach 2:
The patent applies this principle by designing the wavy sleeve to perform multiple functions simultaneously. The same wavy structure that provides flexibility and load-bearing capacity under crosswise loads also serves as the expansion element that provides radial extension and anchoring. This multi-functionality eliminates the need for separate expansion mechanisms and webs, reducing device complexity while maintaining anchoring strength.
3Quantity of substance
If a wavy-shaped sleeve is used, then material usage is reduced and load values under crosswise loads are improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies this principle by optimizing the geometric parameters of the wavy shape, such as wave amplitude, wavelength, and wall thickness, to achieve the desired balance between material reduction and manufacturing feasibility. By carefully selecting these parameters, the sleeve can be manufactured with standard tolerances while still providing the intended flexibility and load-bearing performance, avoiding excessive 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
This design achieves improved load values under crosswise loads, reduces material usage, and ensures reliable anchoring with efficient force transmission, making the anchor cost-effective and easy to manufacture while maintaining high functionality.
Implementation Method 1
the sleeve has a wavy shape with axial wave peaks in which the outer radius of the sleeve as well as the inner radius of the sleeve each have a maximum, and with wave valleys in which the outer radius of the sleeve as well as the inner radius of the sleeve each have a minimum
Implementation Method 2
an expansion area on the bolt that converts axial forces into radial forces for enhanced anchoring
Data Source
AI summary
An anchor having a sleeve, a bolt which passes through the sleeve and at least one expansion element that is positioned in front of the sleeve and that is axially supported on the sleeve, whereby the bolt has an expansion area for the expansion element, is provided. According to the invention, it is provided for the sleeve to have a wavy shape with axial wave peaks in which the outer radius of the sleeve as well as the inner radius of the sleeve each have a maximum, and with wave valleys in which the outer radius of the sleeve as well as the inner radius of the sleeve each have a minimum.