Wearable Ring With Recessed Cutting Blade

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Fishermen face challenges with the portability and safety of carrying a knife to cut fishing line, as it can be cumbersome and poses a danger when frequently used or forgotten, leading to potential accidents and the need for crude methods to cut lines.

Innovation Solution

A ring with a built-in cutting blade, featuring a semi-annular body, adjustable strap, and a cap with a gap to expose the blade, allowing for secure wearing on the finger and safe cutting of fishing lines without the need to remove a knife, with the blade being recessed to prevent accidental cuts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a fisherman carries a knife to cut fishing line, then the ability to cut line is improved, but the portability and safety are worsened due to the knife being cumbersome and posing danger when frequently used

Engineering Contradiction:

Improveability to cut lineVSAvoidsafety risk

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The cutting blade is integrated into the ring structure itself, merging the cutting function with the wearable ring. This eliminates the need to carry a separate knife while maintaining the cutting capability, thereby improving portability and reducing safety risks associated with carrying a loose knife.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The blade is recessed within the ring body, with only the cutting edge exposed through a gap. This nesting approach allows the blade to be stored safely within the ring structure when not in use, reducing the safety hazard while maintaining immediate accessibility for cutting operations.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Ease of operation

If a fisherman carries a knife to cut fishing line, then the cutting function is improved, but the device complexity and portability are worsened

Engineering Contradiction:

Improvecutting functionVSAvoidportability

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If a fisherman uses a traditional knife to cut line, then the cutting capability is improved, but the time response is worsened due to the need to reach for and open the knife

Engineering Contradiction:

Improvecutting capabilityVSAvoidtime to access cutting tool

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The blade is pre-positioned and exposed within the ring structure, eliminating the need to perform actions such as reaching for a knife, unsheathing it, or opening a blade. The cutting tool is already in its operational position, ready for immediate use, thereby eliminating the time loss associated with accessing a traditional knife.

Inventive Principle:

Principle #10Preliminary action

4Adaptability or versatility

If a fisherman forgets his knife, then the alternative cutting methods are simpler, but the reliability and effectiveness are worsened due to the need to use crude methods like teeth or rocks

Engineering Contradiction:

Improvealternative cutting methodsVSAvoideffectiveness of cutting

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The cutting blade is integrated into the ring structure itself, ensuring that the cutting function is always available whenever the ring is worn. This eliminates the risk of forgetting the cutting tool entirely, as the blade is a permanent part of the ring, thereby maintaining high reliability and effectiveness of cutting operations.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS9446528B1Ring with cutting blade

Publication Date: 2016.09.20 LINE CUTTERZ LLC

AI summary

A ring includes a ring body having a shoulder, a neck extending from the shoulder, and a cap extending from the neck and spaced apart from the shoulder, thereby defining a gap between the cap and the shoulder. A blade is mounted in both the cap and neck, and the blade has a curved edge extending from the head to the shoulder and into the gap.