Knife Grip With Blade Spine Platform And Forefinger Guide
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Solution Overview
Problem
Current knife grip designs fail to provide a comfortable, secure hold for both thumb and forefinger, leading to slippage and discomfort during culinary tasks, especially when wet or oily, and do not adequately support the forefinger's proximal phalanx, resulting in blisters and reduced control.
Innovation Solution
A knife grip with raised guides and depressions on the blade's base and spine, specifically designed to form a form-fitting grip that securely holds the thumb and forefinger, with a platform on the spine to support the forefinger's proximal phalanx, preventing slippage and providing leverage for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the user places thumb and forefinger on the back edge of the knife blade to achieve precise control, then control precision is improved, but the flat blade surface causes finger slippage and discomfort
Solution Approach 1:
The patent applies local quality by creating specific textured regions on the blade surface where the thumb and forefinger contact. These localized areas have increased friction properties while the rest of the blade maintains its original smooth surface, thus improving grip stability only where needed without affecting overall blade functionality.
Solution Approach 2:
The blade surface is segmented into distinct functional zones: a textured grip area for finger placement, a smooth transition zone, and the cutting edge area. This segmentation allows the grip-enhancing texture to be confined to specific locations, preventing slippage while maintaining the blade's overall performance characteristics.
2Reliability
If conventional handle designs with bolsters or platforms are used, then grip stability is improved, but the forefinger must stretch to full extension causing joint stress
Solution Approach 1:
Instead of extending the handle forward to reach the finger (conventional approach), the patent inverts the solution by bringing the grip-enhancing surface to the finger by texturing the blade surface itself. This eliminates the need for finger extension while maintaining secure contact between the finger and the knife.
3Reliability
If fingers are inserted through holes in the blade to grip the knife, then grip stability is improved, but blisters and sores form on the fingers
Solution Approach 1:
The patent extracts the harmful aspect of direct finger contact with the blade edge by removing the need for fingers to pass through or contact the narrow internal edges. Instead, the textured surface is applied only to the external back edge surface where fingers naturally rest, eliminating exposure to harmful sharp edges while maintaining grip stability.
4Reliability
If a control knob is added to the blade to prevent finger slippage, then grip stability is improved, but the knob can separate from the knife and be lost
Solution Approach 1:
The patent merges the grip-enhancing function directly into the blade structure by applying texture to the blade's back edge surface. This integration eliminates the need for separate control knobs or attachments, reducing device complexity while maintaining improved grip stability. The texture becomes an inherent part of the blade rather than an add-on component.
Data Source
AI summary
A grip for a knife, the knife characterized by a handle, a blade, a blade spine, and a blade edge, said grip comprising a forefinger grip located on a first face of the blade, said forefinger grip comprising a first forefinger guide, a second forefinger guide, and a forefinger retaining area configured to retain a first portion of a forefinger of a user; a thumb grip located on the second face of the blade, said thumb grip comprising a thumb guide and a thumb retaining area configured to retain a thumb of the user; and a platform located on the blade spine, said platform configured to provide support for a second portion the forefinger of the user.