Adjustable Dishwasher Rack Assembly for Variable Dish Heights
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Solution Overview
Problem
Conventional dishwashers lack the ability to adjust the height of their rack assemblies, limiting their adaptability to different types and sizes of dishes, which results in inefficient use of space within the washing tub.
Innovation Solution
The dishwasher incorporates a frame with adjustable basket positions, allowing baskets to be set at different heights by rotating them 180° or exchanging them between symmetrical basket receiving spaces, enabling the accommodation of various-sized dishes and improving space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the rack assembly has a fixed height structure, then the device complexity is reduced, but the adaptability to different dish sizes and types deteriorates
Solution Approach 1:
The rack assembly incorporates adjustable height mechanisms that allow the rack position to be dynamically changed according to different washing needs. The rack can be moved between multiple height positions along the guide rails, transforming from a static fixed-structure to a dynamic adjustable-structure, thereby resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The rack assembly is divided into separable components including the rack body, guide rails, and locking mechanisms. This segmentation allows independent adjustment of the rack height while maintaining the overall structural integrity, enabling adaptability without requiring complete structural redesign.
2Adaptability or versatility
If the rack assembly has a fixed height structure, then the ease of operation is improved, but the space efficiency of the washing tub deteriorates
Solution Approach 1:
The rack assembly incorporates adjustable height mechanisms that allow the rack position to be dynamically changed according to different washing needs. The rack can be moved between multiple height positions along the guide rails, transforming from a static fixed-structure to a dynamic adjustable-structure, thereby resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The rack assembly includes self-locking mechanisms that automatically secure the rack at selected height positions without requiring additional tools or complex operations. The user can simply adjust the rack to the desired position and the locking mechanism automatically engages, making the adjustment process intuitive and easy to operate.
3Ease of operation
If multiple cutlery and culinary tools are placed in a line separated from each other, then the ease of operation for loading is improved, but the space efficiency deteriorates
Solution Approach 1:
The rack assembly features nested or stacked arrangements for cutlery and culinary tools, where smaller items can be placed in compartments or holders that utilize vertical space. This nesting approach allows multiple items to be accommodated in a compact configuration, increasing the quantity of items that can be washed simultaneously while maintaining ease of loading through organized compartments.
Data Source
AI summary
A dishwasher is provided in which heights of basket(s) of a rack assembly may be easily changed. The dishwasher may include a frame configured to be inserted into and withdraw from a washing tub and plurality of basket positioning device configured to receive and support basket(s) at different heights.