Dish washer with loading frame
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Solution Overview
Problem
Dishwashers face issues with the durability and ease of use of accommodating containers due to the high load on rollers, which can lead to breakage or deformation, causing inconvenience and reducing the spatial efficiency and durability of the washing system.
Innovation Solution
The design incorporates a loading frame with a rotatable shaft and a roller frame that disperses the load across both ends of the shaft, supported by a support frame and extension frames, allowing for improved movement and reduced risk of roller damage, along with a catching groove and protrusion for axial stability, and injection-molded construction for light weight and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-point roller support is used for the accommodating container, then the structure is simple, but the roller is prone to breakage or deformation due to high concentrated load
Solution Approach 1:
The single-point roller support is segmented into a dual-end shaft support structure with rollers at both ends of the shaft. This distributes the load from the accommodating container across two separate rollers instead of concentrating it on one roller, reducing the risk of roller breakage or deformation while maintaining structural simplicity
Solution Approach 2:
The support structure transitions from a single-point (0D/1D) support to a distributed linear support along the shaft axis. By extending the support along the shaft dimension with rollers at both ends, the load is distributed across a longer dimension, reducing concentrated stress on individual rollers and improving reliability
2Device complexity
If the shaft is not supported at both ends, then the structure is simpler, but the roller experiences higher stress and is more prone to failure
Solution Approach 1:
The shaft support configuration is segmented into two distinct support points at opposite ends of the shaft. Each end is independently supported, creating two separate load-bearing zones that distribute the mechanical stress away from the roller, thereby improving the roller's effective load capacity without significantly increasing overall structural complexity
Solution Approach 2:
The dual-end shaft support configuration acts as a preventive measure that distributes and cushions the load before it can concentrate on a single roller. By establishing support at both ends beforehand, the system prevents excessive stress buildup that would lead to roller failure, rather than reacting to stress after it occurs
Data Source
AI summary
A dish washer includes: a main body; a tub positioned in the inside of the main body, wherein an object that is to be washed is washed in the tub; and an accommodating container positioned in the inside of the tub and accommodating the object that is to be washed, wherein the accommodating container includes: a frame forming an accommodating space in which the object that is to be washed is accommodated; and a shaft rotatably supporting a roller configured to move the accommodating container, wherein both ends of the shaft are supported on the frame.