Multi-Strand Hanger Ring Geometry for Clear Sling Angle Ranges
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Solution Overview
Problem
Users find it difficult to accurately determine the angle of inclination in suspension rings for multi-strand slings, which complicates the assessment of load capacity, as existing designs do not provide clear visual differentiation between angle ranges and their corresponding load-bearing capacities.
Innovation Solution
The suspension ring features smaller inner curves than half its width, with a central segment of the connecting leg connected via a rectilinear section at an angle between 50° to 75° to the longitudinal center line, separating the angle ranges of 0° to 45° and 45° to 60°, allowing the chain strands to position themselves in optically distinct areas corresponding to specific load capacities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the connecting leg is designed as a semicircular arc, then the chain strands can position themselves according to the angle of inclination, but it is difficult for the user to determine the angle of inclination and assess the load capacity
Solution Approach 1:
The connecting leg is segmented into three distinct regions: a first arcuate region for angles 0°-30°, a second arcuate region for angles 30°-60°, and a central region for angles greater than 60°. This segmentation allows users to easily determine the angle of inclination by identifying which region the chain strand occupies, directly resolving the difficulty of angle assessment.
Solution Approach 2:
Different regions of the connecting leg are given distinct geometric properties (different arc radii and angles) to correspond to specific angle ranges. The first arcuate region has a larger radius and spans 0°-30°, the second arcuate region has a smaller radius and spans 30°-60°, and the central region has specific curvature characteristics for angles >60°. This local differentiation enables intuitive visual assessment of load capacity.
2Difficulty of detecting and measuring
If the curves on the inside of the suspension ring are larger than half the inner width, then the chain strands can position themselves along the curve, but the angle ranges cannot be clearly separated visually
Solution Approach 1:
The connecting leg is divided into distinct angular regions with clear geometric boundaries. The first arcuate region corresponds to 0°-30° inclination, the second arcuate region corresponds to 30°-60° inclination, and the central region corresponds to angles greater than 60°. This segmentation creates visually distinct zones that make it easy to detect and measure the angle of inclination.
3Stability of the object's composition
If the connecting leg has a large radius of curvature, then the chain strands can position themselves smoothly, but the separation between angle ranges 0°-45° and 45°-60° becomes unclear
Solution Approach 1:
The connecting leg is segmented into regions with different curvature characteristics. The first arcuate region has a larger radius suitable for 0°-30° angles, while the second arcuate region has a smaller radius for 30°-60° angles. This segmentation maintains smooth positioning within each range while providing clear visual separation between angle ranges.
Solution Approach 2:
Different sections of the connecting leg have locally optimized curvature properties. The first arcuate region has a larger radius of curvature to accommodate smaller angles smoothly, while the second arcuate region has a smaller radius to provide better angular resolution for larger angles. This local differentiation achieves both smooth positioning and precise angle determination.
Data Source
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AI summary
A suspension ring (1) for multi-strand hangers comprises two parallel straight legs (2) which are connected to one another at their respective ends by arcuate connecting legs (3), the lower connecting leg (3) being symmetrical to the longitudinal center line (M-M) of the suspension ring (1). and in the central area (5) of its extension as well as in the two areas (6) of its junctions with each of the two legs (2) is rounded in the shape of a segment of a circle. The radii (r1, r2) of the curves on the inside of the suspension ring (1) are smaller than half the inner width (B) of the suspension ring (1), but larger than half the diameter (d) of the legs (2), and the circular section The central area (5) at each of its ends is connected to the area (6) in the form of a segment of a circle where it opens into the adjacent leg (2) via a rectilinear intermediate section (7) of the connecting leg (3), which is at an angle (δ) in the range of 50° to 75° to the longitudinal center line (M-M) of the suspension ring (1).