Insulated Eyehook With Interlocking Gate And Switch Mechanism

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Solution Overview

Problem

Conventional eyehooks are heavy, conductive to electricity, and may cause injuries, while improved designs with insulating layers compromise structural strength and safety mechanisms can lead to pinching issues and damage upon impact.

Innovation Solution

An eyehook design featuring a main hook, gate, and switch with insulating coats and a pivotally connected pin system that distributes force without generating rotation torque, enhancing structural strength and safety by preventing accidental activation and reducing the risk of damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the eyehook is made of rigid metal to offer good durability, then the structural strength is improved, but the weight increases and it becomes conductive to electricity

Engineering Contradiction:

Improvestructural strengthVSAvoidweight

Core Design Contradiction:

StrengthVSWeight of moving object

Solution Approach 1:

The eyehook combines metal main body (for strength) with insulating coating material (for electrical insulation and weight reduction). This composite structure allows the product to simultaneously achieve high structural strength while reducing weight and providing electrical insulation protection.

Inventive Principle:

Principle #40Composite materials

2Strength

If the eyehook is made of rigid metal to offer good durability, then the structural strength is improved, but it becomes conductive to electricity causing safety hazards

Engineering Contradiction:

Improvestructural strengthVSAvoidelectrical conduction hazard

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #40Composite materials

3Object-affected harmful factors

If less metal is used to reduce weight and improve insulation, then the electrical insulation is improved, but the structural strength decreases making the eyehook prone to damage

Engineering Contradiction:

Improveelectrical insulationVSAvoidstructural strength

Core Design Contradiction:

Object-affected harmful factorsVSStrength

Solution Approach 1:

Inventive Principle:

Principle #40Composite materials

4Reliability

If the safety structure is designed to prevent falling, then the safety function is improved, but the user may get pinched while trying to deactivate the safety

Engineering Contradiction:

Improvesafety functionVSAvoidease of deactivation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a gate component as an intermediary between the user and the locking mechanism. The gate can be opened to release the locked state, providing a safe and controlled method to deactivate the safety function without direct access to internal moving parts that could cause pinching.

Inventive Principle:

Principle #24Intermediary (Mediator)

5Reliability

If the switch is positioned to prevent accidental activation, then the safety reliability is improved, but the structure becomes more complex

Engineering Contradiction:

Improvesafety reliabilityVSAvoidstructural complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the switch mechanism with the gate structure, integrating the safety activation and deactivation functions into a unified system. The gate serves dual purposes: as a protective barrier and as the operational interface for deactivating the safety lock, thereby reducing overall structural complexity.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20180038408A1eyehook

Publication Date: 2018.02.08 YOKE INDAL CORP

AI summary

An eyehook includes a main hook, a gate, and a switch. The main hook includes a first portion, a second portion, and has an opening thereon. The gate is pivotally connected to the second portion, and movable between a first and a second position. When the gate is moved to the second position, the opening is closed. A first main body is clad in a first insulating coat which has a first abutting portion. The switch is pivotally connected to the first portion, and movable between a third and a fourth position. A second main body of the switch is clad in a second insulating coat. The switch abuts against the first abutting portion when moved to the third position to prevent the gate from moving toward the first position. The switch includes a covering portion covering the first abutting portion when the gate is moved to the first position.