Pull-Out Refrigerator Container Rollers for Easy Cleaning
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Solution Overview
Problem
Existing refrigeration appliances face challenges in maintaining hygiene and ease of cleaning, particularly in the refrigerated goods container, due to the integration of bearing mechanisms that are not easily removable or cleanable.
Innovation Solution
A refrigeration appliance design featuring rollers rotatably arranged in intermediate housing components that are detachably attached to the refrigerated goods container, allowing for easy removal and reinstallation, which also shields against dirt and moisture ingress, and facilitates cleaning by allowing access to the interior cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rollers are integrated into the refrigerated goods container, then the container can be pulled out smoothly, but the rollers become difficult to clean and maintain hygiene
Solution Approach 1:
The roller assembly is divided into separate components: the roller itself, the intermediate housing component, and the bearing. This segmentation allows the roller and intermediate housing to be detached from the refrigerated goods container for cleaning, while the bearing remains in place on the container wall.
Solution Approach 2:
The roller and intermediate housing component are extracted as removable units from the refrigerated goods container. This extraction enables easy removal and cleaning of these components, preventing dirt and moisture accumulation while maintaining smooth pull-out operation when assembled.
2Reliability
If rollers are fixed in place, then they provide stable support, but they cannot be easily removed for cleaning
Solution Approach 1:
The bearing is designed with dynamic characteristics that allow it to be easily inserted and removed from the intermediate housing component. During normal operation, the bearing provides stable rotational support for the roller. For cleaning maintenance, the bearing can be quickly removed from the intermediate housing, enabling access to clean both the bearing and the intermediate housing cavity.
3Object-affected harmful factors
If the roller housing is sealed to protect against dirt ingress, then hygiene is improved, but cleaning access is reduced
Solution Approach 1:
The housing is segmented into the intermediate housing component that can be detached from the refrigerated goods container. This segmentation allows the intermediate housing to shield the bearing area from dirt and moisture during operation, while enabling easy removal for cleaning access to the cavity when needed.
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 design enhances hygiene by enabling easy cleaning of the refrigerated goods container, reduces the effort required to pull out or push in the container due to optimized rolling friction, and prevents tipping through balanced support, thus improving overall appliance maintenance and user experience.
Implementation Method 1
at least one roller which rolls on at least one counter-bearing surface of the inner container
Data Source
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AI summary
The invention relates to a refrigerator, in particular a domestic refrigerator, having an inner container (2) with a front opening (4), which can be closed by a door leaf, for the removal and/or insertion of refrigeration articles, and a pull-out refrigeration article container (3), as well as mounting means (5) for mounting the refrigeration article container (3) in the inner container (2) in a pull-out manner, the mounting means (5) having on opposite sides of the refrigeration article container (3) in each case at least one roller (8a, 8b) which rolls on at least one counter bearing face (14) of the inner container (2), the at least one roller (8a, 8b) being rotatably disposed in an intermediate housing component (7) which is detachably secured on the refrigeration article container (3).