Cookware Handle Core Structure for Heat-Insulated Grip

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Solution Overview

Problem

Existing handles for utensils like pans are uncomfortable due to non-contoured grips and high heat conductivity, leading to user fatigue and increased manufacturing costs, while also requiring excessive materials for rigidity.

Innovation Solution

A handle design featuring a core with bifurcated beams and a grip that surrounds the core, using less material for structural support, which reduces heat transfer and enhances ergonomic comfort by incorporating thermally insulating materials and apertures for heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a thick metal shaft or bar is used for the handle, then structural rigidity is improved, but heat conductivity increases causing discomfort to the user

Engineering Contradiction:

Improvestructural rigidityVSAvoidheat conductivity

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The handle is divided into multiple structural components: a metal shaft for rigidity, a plastic grip for heat insulation, and apertures for heat dissipation. This segmentation allows each component to address specific requirements without compromising others.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The handle combines metal and plastic materials to achieve both structural rigidity and thermal insulation. The metal shaft provides the necessary strength while the plastic grip layer reduces heat conduction to the user's hand.

Inventive Principle:

Principle #40Composite materials

2Strength

If a thick metal shaft is used for the handle, then structural rigidity is improved, but manufacturing cost increases

Engineering Contradiction:

Improvestructural rigidityVSAvoidmanufacturing cost

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The handle is segmented into a metal shaft and a plastic grip that can be manufactured separately and then assembled. This allows each component to be optimized for its specific function and manufactured using appropriate processes, reducing overall cost.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The metal shaft and plastic grip are combined in a single handle assembly where the plastic grip is molded onto the metal shaft. This merging provides both structural and thermal functions in one integrated component.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of manufacture

If a non-contoured grip configuration is used, then manufacturing simplicity is improved, but user comfort deteriorates

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoiduser comfort

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The grip portion is formed with contoured, curved surfaces that conform to the natural shape of the user's hand. This ergonomic design improves comfort while the plastic material allows for complex shaping without significantly increasing manufacturing difficulty.

Inventive Principle:

Principle #14Spheroidality (Curvature)

4Ease of manufacture

If less material is used in the handle, then manufacturing cost is reduced, but structural rigidity may deteriorate

Engineering Contradiction:

Improvemanufacturing costVSAvoidstructural rigidity

Core Design Contradiction:

Ease of manufactureVSStrength

Solution Approach 1:

The handle structure is segmented to place material only where needed: metal for structural rigidity in the shaft, and plastic for thermal insulation in the grip. This reduces overall material usage while maintaining necessary strength.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different materials and thicknesses are used in different portions of the handle. The metal shaft has sufficient thickness for rigidity, while the plastic grip provides thermal insulation. Apertures are strategically placed to reduce material while maintaining structural integrity.

Inventive Principle:

Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The handle provides improved comfort and reduced heat conduction, maintaining structural rigidity with less material, thus reducing manufacturing costs and enhancing user experience during high-temperature use.

Implementation Method 1

apertures for heat dissipation

Methodology Applied

Scientific EffectHeat dissipation: Convection

Implementation Method 2

thermally insulating materials

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS7490732B2Handle

Publication Date: 2009.02.17 VOLLRATH

AI summary

A handle is disclosed. The handle is for use with a utensil or tool such as a pan or other cookware. The handle comprises a core and may comprise a grip. The core comprises a base mounting portion coupled to the base and a grip portion including a first member and a second member spaced apart from the first member. Each of the first and second members include a vertical dimension greater than its horizontal dimensions. Bridge portions may extend between the first and second spaced apart members. The grip at least partially surrounds the grip mounting portion and may be overmolded to the core or slid on as a sleeve.