Lifting Hook Asymmetric Extension Prevents Chain Slack Rotation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hooks in transport systems for assembly lines often rotate or move undesirably when there is slack in the chain, leading to improper load bearing, hook failure, component damage, or chain binding due to supporting components along non-designated areas.
Innovation Solution
A hook design featuring a coupling portion with a base and extension that maintains the hook in an upright orientation through a notch and lip configuration, preventing rotation and ensuring secure coupling to the component, even when there is slack in the chain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple hook design is used to couple components to conveyors, then the device complexity is reduced, but the hook rotates or moves undesirably when there is slack in the chain, leading to improper load bearing and potential failure
Solution Approach 1:
The hook incorporates an asymmetric extension with a notch that engages a corresponding feature on the component. This asymmetric geometry prevents rotation and unwanted movement of the hook when the chain is slack, while maintaining a relatively simple overall structure. The extension protrudes from one side of the base and engages a matching notch in the component, creating a keyed connection that eliminates rotational freedom without adding complex mechanisms.
2Reliability
If the hook is designed to remain stable and upright, then the reliability improves, but the device complexity increases due to additional structural features
Solution Approach 1:
The hook is segmented into distinct functional portions: a base for receiving the component, an extension with a notch for preventing rotation, and a coupling portion for attaching to the conveyor chain. This segmentation allows each portion to be optimized for its specific function while maintaining manufacturability. The extension is integrated with the base but serves a distinct anti-rotation function, adding minimal complexity while significantly improving reliability.
3Ease of operation
If the hook allows free movement when slack, then the ease of operation improves for coupling, but the hook may support components along non-designated areas, causing damage or failure
Solution Approach 1:
The extension with the notch is pre-configured on the hook to engage a corresponding feature on the component during the coupling process. This preliminary engagement of the anti-rotation feature ensures that the hook is properly oriented and constrained before the component is fully supported by the conveyor. By establishing the correct orientation early in the coupling process, the design prevents subsequent misalignment or rotation that could cause the component to be supported along non-designated areas.
Data Source
AI summary
A hook for lifting a component is described herein. The hook includes a coupling portion configured for coupling to a chain, and a base extending from the coupling portion. The base defines an opening sized to receive a first portion of the component therein, and includes an extension extending from a lower surface of the base. The extension at least partially defines a notch sized to receive a second portion of the component therein. The extension is oriented to engage the second portion of the component to facilitate maintaining the hook in an upright orientation.