Wire Loop Hoist Anchor Structure for Low-Height Force Transfer
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Solution Overview
Problem
Existing hoist point anchors for elevator shafts often compromise between ease of manufacture, load performance, and versatility, typically resulting in bulky designs that limit headroom and efficiency in force transfer.
Innovation Solution
A compact hoist point anchor design where the base passes through the wire rope loop, allowing the wire rope to wind around a dedicated section of the base, thereby reducing the overall height and enhancing load performance and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional hoist point anchor designs with protruding fittings are used, then the mechanical connection between wire rope and base is achieved, but the overall height increases reducing headroom and versatility
Solution Approach 1:
The wire rope loop is positioned to wind around a dedicated section of the base, with the base passing through the loop. This nesting arrangement allows the mechanical connection to be located within the base itself, eliminating the need for protruding fittings and reducing the overall height of the anchor assembly.
Solution Approach 2:
The wire rope ends are arranged parallel to the contact surface rather than extending perpendicular to it. This dimensional reorientation allows the wire rope loop to be integrated within the base structure, reducing the vertical profile while maintaining the mechanical connection functionality.
2Length of stationary object
If compact design with base passing through wire rope loop is used, then overall height is reduced improving headroom, but manufacturing complexity increases
Solution Approach 1:
The base is designed with a dedicated section specifically for the wire rope loop to wind around, creating a distinct functional zone. This segmentation allows the base to be manufactured as a single piece with an integrated wire rope retention feature, simplifying assembly while achieving the compact design.
3Length of stationary object
If wire rope ends are arranged parallel to contact surface, then overall height is reduced, but force transfer efficiency may be compromised
Solution Approach 1:
The base has a dedicated section with specific geometric features designed to optimize the wire rope loop configuration. This localized design ensures that the wire rope is properly positioned and constrained, maintaining efficient force transfer from the wire rope to the base despite the parallel arrangement of the wire rope ends to the contact surface.
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a hoist point anchor comprising a base (10), wherein the base has a contact surface (11) for contacting a ceiling (1) and wherein the base has a plurality of anchor holes (19) for receiving anchor bolts for anchoring the base to the ceiling 1, and a wire rope forming a wire rope loop for attaching a hook, wherein the wire rope loop is attached to the base. According to the invention, the base passes through the wire rope loop.