Appliance Door Handle Mounting With Soft Inserts and Hidden Fastening
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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 soft material end inserts with recessed portions and threaded openings, allowing secure attachment to the refrigerator door without scratching, and including a clip system for easy assembly and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional handle mounting arrangements use screws extending through handle pieces and frames, then secure attachment is achieved, but assembly becomes difficult and witness lines appear that detract from aesthetic appearance
Solution Approach 1:
The handle assembly is divided into separate components: a handle body, end inserts, and attachment members. 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 as a single complex piece requiring multiple screws.
Solution Approach 2:
The end inserts are nested within cavities at the ends of the handle body. The attachment members are then inserted through the handle body and engage with the end inserts, creating a nested assembly structure that simplifies mounting while maintaining secure attachment.
2Strength
If conventional handle mounting arrangements use screws and covers, then attachment is achieved, but witness lines appear that detract from aesthetic appearance
Solution Approach 1:
The attachment members are extracted from the visible exterior of the handle assembly. They are positioned such that they engage with the end inserts from the interior or side, removing the visual evidence of fastening hardware from the exterior surface and eliminating witness lines that would detract from appearance.
Solution Approach 2:
The end inserts serve as intermediary components that mediate between the handle body and the attachment members. They provide a interface that allows secure mechanical attachment while remaining hidden or integrated into the handle design, thus maintaining aesthetic appearance.
3Strength
If hard material end inserts are used for handle mounting, then secure attachment is achieved, but the refrigerator door surface may be scratched during installation
Solution Approach 1:
The end inserts are made from soft, non-marring materials such as rubber, plastic, or other polymers that provide sufficient friction and mechanical engagement for secure attachment while being gentle on the refrigerator door surface. This composite material approach combines the structural integrity needed for attachment with the surface protection needed during installation.
Solution Approach 2:
The material hardness parameter of the end inserts is changed from hard materials (metal, hard plastic) to soft materials (rubber, flexible polymer). This parameter change maintains adequate attachment security through increased friction and deformation capability while eliminating the harmful effect of surface scratching during installation.
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 secure, aesthetically pleasing, and easily assembled handle mounting system that prevents surface damage during installation, enhancing the overall appearance and usability of refrigerator handles.
Implementation Method 1
The end insert is formed from a soft material that will not scratch the refrigerator door when the handle assembly is mounted to the refrigerator
Implementation Method 2
each end insert includes a threaded opening that receives the attachment member or screw. In this embodiment, the screw acts upon a base member to retain and draw the handle assembly against the refrigerator door
Data Source
AI summary
A handle assembly for mounting to a door of an appliance 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.