Knife Belly Hook for Safe Skinning and Blade Strength

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Solution Overview

Problem

Existing knives with hooks on the spine side pose a risk of injury during use and weaken the blade, as they require pulling the knife towards the body, and the hook's placement near the tip compromises the knife's strength and effectiveness for skinning.

Innovation Solution

A knife with a belly hook positioned on the blade side near the handle, allowing for simultaneous cutting and skinning by applying downward pressure for cutting and forward movement for skinning, reducing the risk of injury and maintaining blade strength.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a hook is positioned on the spine side of the knife near the tip, then skinning function is provided, but the blade strength is weakened and injury risk increases

Engineering Contradiction:

Improveskinning functionVSAvoidblade strength

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

The hook is inverted from the conventional spine-side position to the belly-side position near the handle. This inversion allows the hook to engage the hide while the blade pushes forward away from the body, rather than pulling toward the body. The hook is positioned on the belly side opposite the spine, integrated into the blade structure, allowing simultaneous cutting and skinning without compromising blade strength

Inventive Principle:

Principle #13The other way round (Inversion)

2Adaptability or versatility

If a hook is positioned on the spine side of the knife, then skinning function is provided, but the risk of injury to the user increases

Engineering Contradiction:

Improveskinning functionVSAvoidinjury risk

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The knife operation is inverted from pulling toward the body to pushing away from the body. The belly hook positioned near the handle engages the hide while the user pushes the knife forward, directing the cutting force away from the user's body. This eliminates the injury risk associated with spine-side hooks that require pulling motion toward the user

Inventive Principle:

Principle #13The other way round (Inversion)

3Length of moving object

If the hook is positioned near the knife tip, then skinning reach is improved, but the blade becomes weaker and less effective

Engineering Contradiction:

Improveskinning reachVSAvoidblade effectiveness

Core Design Contradiction:

Length of moving objectVSStrength

Solution Approach 1:

The knife blade is segmented into distinct functional zones: the tip portion for cutting with full blade strength, and the belly hook near the handle for skinning. This segmentation allows each portion to be optimized for its specific function - the tip maintains full structural integrity for cutting, while the hook provides dedicated skinning capability without compromising the overall blade strength

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of positioning the hook near the tip as in conventional designs, the hook is inverted to the belly side near the handle. This allows the full length of the blade to remain structurally sound for cutting, while the hook provides the skinning function at a position that does not compromise blade strength or effectiveness

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS8992289B2Knife with hook for skinning and methods of using the same

Publication Date: 2015.03.31 RAMOS RUBEN MADRID

AI summary

A knife having a hook incorporated into the blade for skinning, wherein the hook is a belly hook that is positioned on the belly side or under side of the knife opposite a finger guard area. Methods of the using the knife include steps for using the cutting edge to cut and using the hook to cut by pressure applied away from the user's body.