Wire Rope Hoist Anchor With Nested Loop for Low-Height Load Transfer
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Solution Overview
Problem
Existing hoist point anchors are not easily manufacturable, lack versatility, and have suboptimal load performance due to protruding fittings and inefficient force transfer.
Innovation Solution
A hoist point anchor design where the base pierces through the wire rope loop, allowing a compact and efficient mechanical connection, with a flat contact surface for ceiling attachment and integrated ferrules for end region fixation, reducing overall height and enhancing force transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If protruding fittings are used to connect wire rope to base, then connection strength is improved, but overall height increases and versatility decreases
Solution Approach 1:
The wire rope loop is nested through the base structure, with the base passing through the loop and ferrules positioned within recesses in the base. This nesting arrangement allows the connection components to be contained within the base footprint rather than protruding outward, reducing overall height while maintaining connection strength through the interlaced arrangement.
Solution Approach 2:
The connection design transitions from a vertical protruding arrangement to a horizontal planar arrangement. The wire rope loop passes through the base in a horizontal plane, and ferrules are positioned within recesses, shifting the connection geometry from the vertical dimension to the horizontal dimension. This reduces overall height while preserving connection integrity through the interlaced arrangement.
2Reliability
If protruding fittings are used for wire rope connection, then connection reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The base and wire rope loop are merged into an interlaced arrangement where the base passes through the loop and ferrules are integrated within recesses in the base. This merging eliminates the need for separate protruding fittings and their associated complex assembly procedures, simplifying manufacturing while maintaining connection reliability through the direct interlaced connection.
Solution Approach 2:
The design extracts the protruding fitting components and replaces them with ferrules that are contained within recesses in the base. By taking out the protruding elements and repositioning them within the base structure, the design simplifies manufacturing by eliminating complex fitting assemblies while maintaining connection reliability through the interlaced arrangement.
3Length of stationary object
If compact design is implemented by passing base through wire rope loop, then overall height is reduced and versatility is improved, but force transfer efficiency may worsen
Solution Approach 1:
The wire rope loop forms a curved loop structure that passes through the base, creating a smooth curved path for force transfer. The ferrules are positioned within recesses that accommodate the curved geometry of the wire rope ends. This curved arrangement maintains efficient force transfer by avoiding sharp angles or discontinuities while achieving compact overall height.
Solution Approach 2:
The wire rope is pre-formed into a loop configuration before being positioned through the base, and ferrules are pre-positioned within the recesses to accommodate the wire rope ends. This preliminary preparation ensures that force transfer paths are optimized before final assembly, maintaining efficient load performance while achieving the compact interlaced design.
Data Source
AI summary
A hoist point anchor includes a base where the base has a contact surface for contacting a flat ceiling and where the base has a plurality of anchor holes emerging at the contact surface for receiving a plurality of respective anchor bolts for anchoring the base to the flat ceiling. A wire rope forms a wire rope loop for attaching a hook where the wire rope loop is attached to the base. The base passes through the wire rope loop.