Refrigerator Handle Assembly With Soft End Inserts for Scratch-Free Mounting

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Solution Overview

Problem

Conventional refrigerator handle mounting arrangements are difficult to assemble, aesthetically unappealing, and can damage the appliance's surface during installation, lacking a secure and easy-to-mount solution.

Innovation Solution

A handle assembly mounting arrangement featuring end inserts with recessed portions and threaded openings, made from soft materials to prevent scratching, allowing secure attachment to the refrigerator door without requiring screws to be threaded through the handle, using clips and fasteners for easy assembly and alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional handle mounting arrangements use screws extending through the handle piece and frame, then secure attachment is achieved, but assembly becomes difficult and witness lines appear that detract from aesthetic appearance

Engineering Contradiction:
Improveattachment securityVSAvoidassembly complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The handle assembly is divided into separate components: a handle body, end inserts, and mounting brackets. The end inserts are separate pieces that fit into cavities at the ends of the handle body, allowing the handle to be assembled in segments rather than requiring complex one-piece construction with internal screw mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The mounting function is extracted from the main handle body and placed into separate end inserts and brackets. These brackets are designed to engage with the refrigerator door independently, while the handle body simply connects to the brackets. This separation simplifies the main handle structure and makes assembly more straightforward.

Inventive Principle:
Principle #2Taking out (Extraction)

2Strength

If conventional handle mounting arrangements use screws and covers, then secure attachment is achieved, but witness lines appear that detract from aesthetic appearance

Engineering Contradiction:
Improveattachment securityVSAvoidaesthetic appearance
Core Design Contradiction:
StrengthVSShape

Solution Approach 1:

The visible mounting elements (screws and covers) are extracted from the final assembled appearance. The brackets are designed to be concealed behind the handle body or along its edges, so that when the handle is properly assembled, no mounting hardware is visible from the front, maintaining a clean aesthetic appearance while still providing secure attachment.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The end inserts are nested within cavities at the ends of the handle body, and the brackets are positioned to be partially concealed by the handle structure. This nesting arrangement allows the mounting components to be hidden within or behind the main handle body, eliminating visible witness lines while maintaining structural integrity.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Strength

If hard materials are used for handle mounting components, then structural strength is achieved, but scratching or damaging the refrigerator outer surface occurs during construction

Engineering Contradiction:
Improvestructural strengthVSAvoidsurface scratching
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The end inserts are made from a soft material specifically at the portions that contact the refrigerator door surface during installation and in the final assembled state. This local use of soft material at the contact points prevents scratching, while the rest of the handle assembly can use harder materials for structural strength. The soft material is applied only where needed to prevent damage.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The handle assembly uses composite construction with different materials for different functions. The main handle body and brackets use hard materials for structural strength, while the end inserts use soft materials for surface protection. This combination of materials in a single assembly achieves both structural integrity and surface protection without compromising either requirement.

Inventive Principle:
Principle #40Composite materials

4Adaptability or versatility

If multiple pieces are used to form the handle, then flexibility in design is achieved, but assembly becomes difficult and time-consuming

Engineering Contradiction:
Improvedesign flexibilityVSAvoidassembly time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The handle is segmented into a handle body and end inserts that fit into cavities, creating modular components that can be manufactured independently and assembled straightforwardly. The segmentation allows for design flexibility while maintaining simple assembly through cavity-fit connections rather than complex fastening mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The end inserts combine multiple functions: they provide mounting surfaces for the brackets, maintain the structural integrity of the handle ends, and protect the refrigerator surface. By combining these functions into single components rather than separate elements, the design achieves versatility without proportionally increasing assembly complexity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10401079B2Handle assembly for a refrigerator
Publication Date: 2019.09.03 WHIRLPOOL CORP
  • US10401079B2 patent drawing
  • US10401079B2 patent drawing
  • US10401079B2 patent drawing

AI summary

A handle assembly for mounting to a door of a refrigerator includes a main body member having first and second end portions separated by an intermediate portion. Each of the first and second end portions includes a cavity adapted to receive an end insert formed of soft material. Each of the end inserts includes an attachment member. The handle is mounted to a front face of the door through interengagment of the attachment members and base members provided on the door without scratching the surface of the door.