Domestic oven

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Solution Overview

Problem

Modern built-in ovens face challenges in attaching a slim handle to the glass door without compromising aesthetics, as screw holes near the top edge can lead to glass breakage and result in a poor aesthetic appearance.

Innovation Solution

A hinged door design featuring an elongated element positioned between the glass panel and the handle, with vertical metal bars glued to the glass panel, allowing for secure attachment of the handle while maintaining a flush and aesthetically pleasing appearance, using materials like plastic, metal, or ceramic, and optionally incorporating a metal cover or serigraphy for enhanced aesthetics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screw holes are placed near the top edge of the glass panel to attach a slim handle, then the handle can be attached securely, but the glass panel is at risk of breaking and the aesthetics are compromised

Engineering Contradiction:
Improvehandle attachment securityVSAvoidglass breakage risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

An intermediate element is introduced between the glass panel and the handle. This intermediate element has holes positioned away from the glass edge, allowing screw attachment while the element itself absorbs the mechanical stress, preventing glass breakage. The intermediate element acts as a mediator that decouples the handle attachment function from the glass panel structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If screw holes are placed at a sufficient distance from the glass edge to prevent breakage, then glass integrity is maintained, but the handle cannot be properly attached and aesthetics are poor

Engineering Contradiction:
Improveglass breakage preventionVSAvoidhandle attachment security
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The intermediate element serves as a mediator that provides proper hole positioning for secure handle attachment while maintaining safe distance from the glass edge. The element transfers the attachment load away from the glass, ensuring both glass integrity and reliable handle mounting.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 solution provides a flexible and aesthetically pleasing method to attach a slim handle to the oven door, addressing the issue of glass breakage and poor aesthetics, while offering manufacturers and consumers flexibility in design variants.

Implementation Method 1

The one or more vertical bars are positioned orthogonal to the elongated element, and are coupled to the external glass panel with a glue

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Data Source

PatentUS10422536B2Domestic oven
Publication Date: 2019.09.24 WHIRLPOOL CORP
  • US10422536B2 patent drawing
  • US10422536B2 patent drawing

AI summary

A domestic oven is provided having a hinged door with a handle. The hinged door includes at least one external glass panel coupled to one or more vertical bars defining a structure of the hinged door and an elongated element is coupled to an upper edge of the at least one external glass panel. The elongated element is positioned between the structure and the handle with at least one external glass panel interposed therein.