Pivoting Crab Cracker With Multi-Size Recesses and Shell Cutter

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Solution Overview

Problem

Conventional crab cracking tools are inadequate for handling shells of different sizes and thicknesses, often damaging the meat while attempting to extract it, and lack a cutting tool for easier access.

Innovation Solution

A crab cracking tool with pivotally connected members featuring different diameter openings and a cutting tool with a blade for precise cracking and cutting through shells without damaging the meat, allowing for efficient access to crab meat in various shell sizes and thicknesses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single opening design is used in conventional crab cracking tools, then the device structure is simple, but it can only handle a single size of crab or crustacean leg, reducing versatility

Engineering Contradiction:

Improveability to handle different sizes and thicknesses of shellsVSAvoidstructure with multiple openings and pivotally connected members

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The tool is divided into two separate members (first member and second member) that are pivotally connected, allowing each member to be independently designed with specific functions. The first member contains first and second openings for different sized shells, while the second member contains a third opening and a cutting tool, enabling specialized handling of various shell types and sizes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The crab cracking tool is designed with multiple openings of different diameters (first opening, second opening, third opening) to accommodate various sizes and thicknesses of crab shells and crustacean legs. The pivotally connected members allow the tool to function both as a cracking device and as a cutting device, providing multi-functionality in a single tool.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If conventional cracking methods are used without a cutting tool, then the device structure is simple, but it cannot easily retrieve meat from thinner leg portions without damaging the meat

Engineering Contradiction:

Improveease of retrieving meat from thinner leg portionsVSAvoiddevice with cutting tool and pivotally connected members

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The second member is equipped with a cutting tool specifically positioned for addressing thinner leg portions, while the first member with larger openings handles the main body cracking. This localized specialization allows the cutting function to be applied precisely where needed without requiring the entire tool to be overly complex.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The cutting tool is designed to make preliminary incisions in thinner leg portions before the cracking action is applied. This preliminary cutting action facilitates easier meat retrieval by creating initial access points, preventing meat damage during the subsequent cracking process.

Inventive Principle:

Principle #10Preliminary action

3Strength

If forceful cracking is applied to thick shells, then the shell can be opened, but the meat inside may be damaged

Engineering Contradiction:

Improveability to crack thick shellsVSAvoiddamage to meat inside the shell

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The pivotally connected members act as intermediaries that distribute and control the cracking force. The first member with its larger openings can accommodate thick shells while the pivotal connection allows for controlled force application, preventing excessive localized pressure that would damage the meat.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The tool utilizes dynamic motion through the pivotal connection between members, allowing the cracking action to be applied progressively rather than as a single static force. This dynamic approach enables the user to apply increasing force gradually, cracking thick shells effectively while minimizing the risk of sudden forceful impact that could damage the meat.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS9949496B2Crab cracking tool

Publication Date: 2018.04.24 ANDERSON JR THEODORE

AI summary

A crab cracking tool. The crab cracking tool includes a first member having a first handle connected to a first head portion and a second member having a second handle connected to a second head portion. The first head portion includes a first recess, a second recess, and a first gripping portion and the second head portion includes a third recess, a fourth recess, and a second gripping portion. A cutting tool disposed on the second member extends outwardly from a first end of the second head portion. The cutting tool includes an inner edge having a blade thereon. The inner edge is oriented inwardly toward an outer side of the second member defining an opening therebetween. The first member is pivotally secured to the second member, such that the first second members are configured to pivot between a closed position and an open position.