Dishwasher
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Solution Overview
Problem
The existing dishwasher designs face challenges with the deformation of accommodating containers due to gravity, leading to difficulties in smooth draw-out and insertion, and restricted space utilization, especially when accommodating large-sized tableware.
Innovation Solution
The dishwasher incorporates a support holder on the front portion of the accommodating container to be supported on the guide rail and inner wall of the tub, along with rollers on the rear portion, providing three-point support to prevent deformation and enhance movement and space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the accommodating container is supported only by guide rollers at the rear portion, then the structure is simple, but the front end portion deforms under gravity causing difficult draw-out and insertion
Solution Approach 1:
The support function is segmented into two distinct components: guide rollers at the rear portion and a support holder at the front portion. This segmentation allows each component to perform its specific function optimally - the guide rollers provide rotational support while the support holder provides direct structural support, together resolving the deformation issue without excessive complexity
Solution Approach 2:
The support holder acts as an intermediary element between the accommodating container and the guide rail. It transfers the load from the front portion of the container to the guide rail, preventing deformation while maintaining the simplicity of the overall structure through a single additional component
2Volume of moving object
If the front end portion of the accommodating container is deformed, then the structure adapts to space constraints, but the accommodating space for large-sized tableware is narrowed
Solution Approach 1:
The support holder provides an upward support force that counteracts the downward gravitational force causing deformation. This anti-weight effect maintains the container's shape stability, ensuring the full accommodating volume is available for large-sized tableware without deformation-induced space loss
3Stability of the object's composition
If the accommodating container is made more rigid to prevent deformation, then the shape stability improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
Instead of making the entire accommodating container more rigid, the solution extracts the shape-stabilizing function into a separate support holder component. This allows the container itself to remain simple and easy to manufacture, while the support holder provides the necessary structural support to prevent deformation
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
This solution stabilizes the accommodating container, ensuring smooth draw-out and insertion, and improves space utilization by distributing the load evenly, allowing for the accommodation of larger items.
Implementation Method 1
at least one roller rotatably mounted on the rear portion of the accommodating container so that the accommodating container is movable along the guide rail
Implementation Method 2
a support holder formed on the front portion of the accommodating container to be supported on at least one of the guide rail and the inner wall of the tub
Implementation Method 3
distributing the load evenly
Data Source
AI summary
A dishwasher having a structure to prevent deformation of an accommodating container includes a main body, a tub provided inside the main body and including an opening, a door provided to open and close the opening of the tub, a guide rail mounted on an inner wall of the tub, an accommodating container provided to accommodate tableware and be movable along the guide rail, and including a front portion facing the opening and a rear portion, at least one roller rotatably mounted on the rear portion of the accommodating container so that the accommodating container is movable along the guide rail, and a support holder formed on the front portion of the accommodating container to be supported on at least one of the guide rail and the inner wall of the tub.