Wire Mesh Helix with Variable Pitch Angles for Load Adaptation
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Solution Overview
Problem
Existing wire mesh technologies fail to achieve optimal load-bearing capacity and adaptability to specific stress geometries, particularly with high-strength steel wires, and lack efficient methods for producing wire meshes with tailored mechanical properties.
Innovation Solution
A wire mesh design featuring coils with varying pitch angles and bending point geometries, manufactured using a bending device that adjusts leg lengths and curvature, allowing for high tensile strength, rigidity, and adaptable mechanical properties, optimized for specific loads and stress patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If wire mesh is made from high-strength steel with conventional geometries, then material strength is improved, but load-bearing capacity and adaptability to specific stress geometries remain insufficient
Solution Approach 1:
The patent applies local quality by varying the pitch angle along different sections of the helix. Specifically, the helix has a first pitch angle in a first section and a second pitch angle in a second section, allowing different regions to be optimized for specific load conditions. This enables the wire mesh to have tailored mechanical properties in different areas, improving overall load-bearing capacity while using high-strength steel material.
Solution Approach 2:
The patent utilizes parameter changes by modifying the pitch angle parameter along the helix length. The transition from a first pitch angle to a second pitch angle creates varying curvature and stiffness characteristics, allowing the structure to adapt to different stress geometries and improve reliability under various loading conditions while maintaining high tensile strength.
2Productivity
If wire mesh geometry is standardized for manufacturing efficiency, then productivity is improved, but adaptability to different stress conditions deteriorates
Solution Approach 1:
The patent applies dynamics by implementing a variable pitch angle design where the helix transitions from a first pitch angle to a second pitch angle along its length. This dynamic geometric variation allows the wire mesh to be manufactured using automated processes while achieving tailored mechanical properties for different stress conditions, thus maintaining productivity without sacrificing adaptability.
Solution Approach 2:
The variable pitch angle helix design provides multi-functionality by enabling a single wire mesh structure to handle multiple types of loading conditions. The different pitch angle sections can be optimized for tension, compression, or lateral loads, making the manufacturing process more versatile and reducing the need for multiple standardized geometries.
3Reliability
If helix pitch angle is increased to improve load-bearing capacity, then strength is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-planning the pitch angle variation along the helix during the design stage. The transition from first pitch angle to second pitch angle is predetermined, allowing manufacturing equipment to follow a programmed path that achieves the desired geometric complexity without requiring complex real-time adjustments, thus improving load-bearing capacity while controlling manufacturing complexity.
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
The solution provides a wire mesh with enhanced load-bearing capacity, high tensile strength, and adjustable mechanical properties, enabling flexible adaptation to different stress conditions and reducing the need for extensive testing.
Implementation Method 1
at least one first leg, at least one second leg and at least one bending point connecting the first leg and the second leg are produced by bending
Data Source
Figure 1~3
Figure 4a~4d
Figure 5a~5d
AI summary
The invention relates to a wire mesh (10a; 10b; 10c), in particular a safety net, with several interwoven helixes (12a, 14a; 12b; 12c), of which at least one helix (12a; 12b; 12c) is made of at least one single wire, a wire bundle, a wire strand, a wire rope and/or another longitudinal element (16a; 16b; 16c) with at least one wire (18a; 18b; 18c) and has at least one first leg (20a; 20b; 20c), at least one second leg (22a; 22b; 22c) and at least one bending point (24a; 24b; 24b) connecting the first leg (20a; 20b; 20c) and the second leg (22a; 22b; 22c). 24c) includes, wherein in a frontal view the first leg (20a; 20b; 20c) runs perpendicular to a principal extension plane of the helix (12a; 12b; 12c) at least with a first inclination angle (26a; 26b; 26c) with respect to a longitudinal direction (28a; 28b; 28c) of the helix (12a; 12b; 12c).It is proposed that, in a cross-sectional view parallel to the main extension plane of the helix (12a; 12b; 12c) and perpendicular to the longitudinal direction (28a; 28b; 28c) of the helix (12a; 12b; 12c), the bending point (24a; 24b; 24c) runs at least sectionally with a second angle of inclination (30a; 30b; 30c) different from the first angle of inclination (26a; 26b; 26c) with respect to the longitudinal direction (28a; 28b; 28c) of the helix (12a; 12b; 12c).