Adjustable Dishwasher Rack Base for Flexible Loading Volume
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Solution Overview
Problem
Domestic dishwasher racks often lack flexibility in loading volume adjustment, as the available space above an upper basket may not be utilized efficiently, particularly with existing flatware drawers that do not allow for adequate expansion.
Innovation Solution
A rack design featuring a base with articulated portions that can be folded out and adjusted in length, allowing for increased loading volume by pivoting or telescoping, and a locking apparatus to maintain desired states, enabling the base to be parallel or angled relative to the insertion plane, thereby accommodating different loading configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the base is made fixed and rigid, then structural stability is improved, but loading volume flexibility deteriorates
Solution Approach 1:
The base is divided into multiple portions (first portion, second portion, third portion) that can be independently articulated and adjusted. This segmentation allows each portion to be positioned independently to create different loading configurations while maintaining overall structural integrity through the articulation connections.
Solution Approach 2:
The base transitions from a fixed structure to a dynamic, adjustable structure through the introduction of articulations. The base portions can be pivoted between different positions (folded-in and folded-out states) to adapt the loading volume to different washing needs, while the locking apparatus maintains stability when a configuration is selected.
2Volume of moving object
If the base is folded out to increase loading volume, then space utilization is improved, but device complexity increases
Solution Approach 1:
The base is segmented into multiple articulated portions that can be independently adjusted. This allows the loading volume to be increased in a controlled manner by folding out specific portions, rather than requiring a complete base redesign, thereby managing complexity through modular adjustment.
Solution Approach 2:
When the base portions are folded in, they nest together in a compact configuration within the rack structure. This nesting capability allows the base to occupy minimal space when not in use, while providing expanded loading volume when needed, effectively managing the complexity-volume trade-off.
3Adaptability or versatility
If telescopic elements are added to change portion length, then loading volume adjustability is improved, but manufacturing complexity increases
Solution Approach 1:
The base portions are segmented into telescopic elements that can be manufactured as separate components. This segmentation allows for standardized manufacturing of individual telescopic sections that can be assembled together, reducing overall manufacturing complexity compared to creating a single complex adjustable structure.
Solution Approach 2:
The telescopic elements enable continuous parameter changes in the base portion lengths, allowing the loading volume to be adjusted to match various washing requirements. This parameter adjustability is achieved through relatively simple telescopic mechanisms rather than requiring multiple discrete base configurations.
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 adjustable rack design enhances loading capacity by allowing the base to be expanded vertically or maintained in various states, optimizing space utilization and versatility, especially when transitioning between flatware drawer and upper basket configurations.
Implementation Method 1
the articulations provided allow the base to be lowered for example downward by the pivoting or folding of the articulations
Implementation Method 2
the at least one portion has at least two elements that can telescope into one another
Data Source
AI summary
A rack for a domestic dishwasher includes a frame and a base. The base can be swung and folded out in order to increase a loading volume of the rack. The base includes a first portion articulated to a first side of the frame via a first articulation, and a second portion articulated to a second side of the frame opposite the first site via a second articulation, and articulated to the first portion via a third articulation. The second portion is configured to change its length between the second and third articulations.