Rotating Suspension Point for Concrete Anchors
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Solution Overview
Problem
Existing rigging, hoisting, and suspension assemblies lack flexibility to accommodate both metal and concrete structures and cannot utilize common threaded fasteners or concrete anchors of varying lengths, leading to issues with misalignment and anchor bending when securing to non-flat surfaces.
Innovation Solution
A rotating suspension point assembly featuring a base with a tubular structure, a flanged bushing with a concave surface, and a convex washer, allowing for misalignment and the use of any anchor length, along with securing plates for additional stability, enabling rotation and pivoting without captive fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed bushing is secured directly to the concrete or steel structure using a captive threaded fastener or concrete anchor, then the base is generally flush and perpendicular to the structure, but if the concrete or steel structure is not flat, or if the hole to accept the threaded fastener or concrete anchor is not drilled perpendicular to the surface, subsequent tightening of the threaded fastener or concrete anchor will result in bending of the threaded fastener or concrete anchor, rendering the assembly not fit for service
Solution Approach 1:
The patent introduces a rotating base that can pivot and rotate relative to the structure, transforming the fixed alignment system into a dynamic one. This allows the base to self-adjust to misaligned anchors and non-flat surfaces, eliminating the bending issue while maintaining proper operational alignment.
Solution Approach 2:
The patent employs a spherical interface between the rotating base and the fixed bushing, allowing rotational movement in multiple directions. This spherical geometry enables the base to accommodate angular misalignments and non-perpendicular drill holes without compromising the structural integrity of the anchor.
2Ease of operation
If existing rotating rigging, hoisting and suspension assemblies include a fixed bushing secured to components or structures, then the assembly provides rotation and pivoting, but the base is generally flush and perpendicular to the structure to which it is secured, limiting flexibility for non-flat surfaces
Solution Approach 1:
The rotating base with spherical interface provides dynamic adjustment capability, allowing the assembly to adapt to various surface conditions while maintaining rotation and pivoting functionality. The base can tilt and rotate to achieve proper orientation regardless of the underlying surface geometry.
Solution Approach 2:
The assembly is divided into distinct functional segments: a fixed bushing portion that interfaces with the structure, a rotating base portion that provides movement capability, and a spherical interface that connects them. This segmentation allows each component to perform its specific function independently, with the spherical interface acting as a universal adapter for various surface conditions.
3Adaptability or versatility
If existing suspension assemblies are designed with captive threaded fasteners or concrete anchors of specific lengths, then the assembly can be secured to structures, but existing assemblies are not designed with flexibility to facilitate applications to both metal and concrete structures or with the ability to utilize common threaded fasteners or concrete anchors of any length
Solution Approach 1:
The fixed bushing is designed with a universal threaded bore that can accommodate various types of anchors (threaded fasteners, concrete anchors) of different lengths and specifications. This universal design allows the same assembly to be used on both metal and concrete structures without modification, eliminating the need for structure-specific designs.
Solution Approach 2:
The rotating base design decouples the orientation requirements of the structure from the operational requirements of the rigging components. This dynamic configuration allows the use of common anchors of any length that protrude through the structure, as the rotating base can always achieve proper alignment regardless of the anchor's orientation or length.
Data Source
AI summary
A rotating suspension point assembly permits rotation and other movement of the assembly relative to the axis of an anchor to which it is attached. The rotating suspension point assembly comprises a base, a flanged bushing having a main portion with internal clearance to allow misalignment of an anchor and having a flange portion where the main portion extends away from the flange portion, and a washer aligned with the flange portion of the flanged bushing.