Height-Adjustable Dish Rack Handle for Ergonomic Dishwasher Operation
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Solution Overview
Problem
Users of household dishwashers often need to bend or kneel to pull out the lower rack, which can be inconvenient and strains the body.
Innovation Solution
A height-adjustable handle for the lower rack in household dishwashers, which can be shifted from a starting position to an operating position using a locking device, allowing for ergonomic handling without the need to bend or kneel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the lower rack is located near the bottom of the wash tub, then the dishwasher can accommodate more dishes, but the user must kneel or bend down to pull it out or push it back in
Solution Approach 1:
The handle is designed to be height-adjustable, allowing users to dynamically change the handle position to a comfortable height. This enables the lower rack to maintain its capacity while providing ergonomic operation at various heights, resolving the contradiction between storage capacity and user comfort.
Solution Approach 2:
The handle height parameter can be changed to different positions using the locking device. This parameter change allows the same lower rack structure to serve both purposes: maintaining dishes capacity when the handle is in the original position and providing ergonomic operation when the handle is adjusted to a higher position.
2Ease of operation
If a height-adjustable handle is added to the lower rack, then ergonomic handling is improved, but the device complexity increases
Solution Approach 1:
The handle is segmented into multiple components: a handle body, a locking device, and a height-adjustment mechanism. This segmentation allows each component to perform its specific function independently, making the overall system manageable despite the increased complexity, while enabling ergonomic operation.
Solution Approach 2:
The locking device is designed to automatically lock the handle at the selected height position without requiring additional tools or complex mechanisms. The handle itself serves to activate the locking mechanism, reducing the need for external components and minimizing the increase in device complexity.
Data Source
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AI summary
The invention relates to a crockery basket (12), in particular a lower basket, for a household dishwasher (1), with a basket-shaped washware holder (15), a handle (20) arranged on the washware holder (15) and a locking device (27), the handle (20) is height-adjustable, the handle (20) being displaceable from an initial position (AP) into at least one operating position (BP) for height adjustment, and the handle (20) being both in the initial position (AP) and in the at least one operating position (BP) can be locked using the locking device (27).