Chain Link Adapter for Hoist Safety Cable Wear Prevention
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Solution Overview
Problem
Conventional safety cables threaded through chain links and hooks in hoists are prone to wear and failure when the connector between the chain and hook fails, compromising their effectiveness in preventing object drops during lifting.
Innovation Solution
A connector system that includes a base portion with a chain opening for the chain to freely move and a top portion that secures the safety cable, allowing it to be thicker and stronger, reducing wear points and maintaining connection between the chain and object even if the hook disconnects from the chain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the safety cable is threaded through the chain link and hook, then the safety cable can provide a safety mechanism, but the safety cable becomes susceptible to wear and may fail when the connector fails
Solution Approach 1:
The patent introduces a connector as an intermediary component between the chain and hook that provides dedicated cable access points. This mediator allows the safety cable to connect to the chain without threading through the chain link itself, eliminating the wear problem while maintaining the safety function. The connector serves as the intermediary that resolves the conflict between safety effectiveness and cable durability.
2Strength
If the safety cable is made thicker and stronger, then the cable can support the object better, but the cable cannot be threaded through the chain link opening
Solution Approach 1:
The patent segments the connection system into distinct components: the chain, the connector, and the hook. By dividing the system this way, the connector can provide a larger, dedicated opening for the safety cable that is independent of the chain link opening. This segmentation allows the use of thicker, stronger cables without being constrained by the limited size of chain link openings, while still enabling easy installation through the connector's dedicated cable access points.
Data Source
AI summary
A system for providing safety to a hoist having a hook and a chain. The system includes a safety cable threaded through an opening of the hook or an object to be lifted. The system includes a connector connected to the safety cable and the chain such that when the hook and the chain of the hoist are disconnected, the object remains connected to the chain via the connector and safety cable. The connector includes a base portion having a chain opening configured to receive the chain, and a first cable opening configured to receive the safety cable. The connector includes a top portion configured to be coupled to the base portion and cover a portion of the chain opening such that the base portion and the top portion, when coupled together, remain at a substantially fixed position along the length of the chain.