Contoured Reinforcement Band for Lightweight Baking Trays

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Solution Overview

Problem

Industrial baking trays face structural weakness and weight issues due to repeated thermal and mechanical stresses, leading to high energy consumption and premature wear, necessitating a lightweight yet effective reinforcement solution.

Innovation Solution

A contoured reinforcing band with a unique multiple S-shaped cross-sectional geometry is integrated around the perimeter of the baking tray, providing structural strength while minimizing material usage and weight, fabricated from metals like carbonized steel or aluminum.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a rigid metal band is used to reinforce the baking tray, then structural strength is improved, but weight increases significantly

Engineering Contradiction:

Improvestructural strengthVSAvoidtray weight

Core Design Contradiction:

StrengthVSWeight of moving object

Solution Approach 1:

The reinforcing band is segmented into discrete reinforcement elements positioned at specific high-stress locations (corners and edges) rather than using a continuous solid band. This segmentation maintains structural strength while reducing the total material quantity and weight of the reinforcement.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Reinforcement is applied locally at critical stress points (corners and edges) where it is most needed, rather than uniformly across the entire tray. This localized reinforcement approach provides adequate strength while minimizing overall weight addition.

Inventive Principle:

Principle #3Local quality

2Strength

If a rigid metal band is used to reinforce the baking tray, then structural strength is improved, but energy input required for heating increases

Engineering Contradiction:

Improvestructural strengthVSAvoidheating energy input

Core Design Contradiction:

StrengthVSUse of energy by moving object

Solution Approach 1:

By segmenting the reinforcement into discrete elements rather than using a continuous solid band, the total thermal mass of the tray is reduced. This segmentation allows heat to penetrate and distribute more efficiently across the tray surface, reducing the energy input required for heating while maintaining structural integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The reinforcement structure is designed with changed parameters (discrete elements with specific geometries) that optimize the balance between structural strength and thermal properties, allowing for reduced heating energy while maintaining tray strength.

Inventive Principle:

Principle #35Parameter changes

3Weight of moving object

If material quantity is reduced to decrease weight, then weight is improved, but structural strength deteriorates

Engineering Contradiction:

Improvetray weightVSAvoidstructural strength

Core Design Contradiction:

Weight of moving objectVSStrength

Solution Approach 1:

Material is concentrated at local critical points (corners and edges) where structural strength is most needed, rather than distributing material uniformly. This local quality approach ensures adequate strength with minimal total material usage, achieving weight reduction without compromising structural integrity.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The reinforcement elements incorporate curved and contoured geometries that provide superior structural efficiency compared to straight lines. These curved forms distribute stress more effectively, maintaining strength while using less material.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentEP2566337B1Industrial baking tray with contoured reinforcement band

Publication Date: 2015.11.18 AMERICAN PAN CO

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Figure 3A~3B

AI summary

An industrial or commercial baking tray that includes a baking surface; a walled portion surrounding the baking surface and formed integrally therewith; and a contoured reinforcing band positioned around the perimeter of the walled portion, wherein the top edge of the walled portion has been adapted to enclose at least a portion of the contoured reinforcing band; and wherein the cross-sectional geometry of the contoured reinforcing band is operative to impart strength and stability to the baking tray while reducing the overall mass of the reinforcing band.