Guide Rail and Roller Assembly for Quiet, Stable Fridge Drawers
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Solution Overview
Problem
Existing guide arrangements for refrigerated goods containers in refrigeration devices often fail to provide quiet and efficient movement while preventing lateral displacement and tip-over, leading to noise and potential damage during pull-out.
Innovation Solution
A guide arrangement featuring a guide roller and rail with a radial guide profile and groove, along with a support roller, that allows for precise spatial guidance and reduced friction, enabling quiet and stable movement of the container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rollers are provided under the floor of the refrigerated goods container to enable easy pull-out, then the ease of operation is improved, but lateral displacement and tip-over of the container may occur
Solution Approach 1:
A guide rail is introduced as an intermediary element between the roller and the storage area. The guide rail has a running surface that guides the roller along a predetermined path, preventing lateral displacement while maintaining smooth pull-out motion. The guide profile acts as a mediator that constrains the roller's movement to the desired trajectory.
Solution Approach 2:
The guide profile is positioned at a specific distance from the guide roller to optimize the balance between ease of movement and lateral constraint. By adjusting the geometric parameters of the guide profile and its relative position, the system achieves both smooth operation and stability prevention.
2Stability of the object's composition
If guide arrangements are provided to prevent lateral displacement, then stability is improved, but noise is generated during pull-out
Solution Approach 1:
The running surface of the guide rail is positioned radially to the guide roller, creating optimal contact geometry that minimizes friction and noise. The axial positioning of the guide profile at a specific distance from the roller further optimizes the interaction, reducing noise while maintaining stability.
Solution Approach 2:
The guide roller is arranged embedded in the floor area, and the guide profile encompasses part of the roller's surface. This curved contact geometry distributes the load and reduces noise compared to flat surface contact.
3Stability of the object's composition
If the guide profile is positioned close to the guide roller for effective guidance, then lateral displacement prevention is improved, but the running surface area is reduced
Solution Approach 1:
The guide profile is positioned at an optimized distance from the guide roller that balances guidance precision with sufficient running surface area. This parameter optimization ensures both effective lateral constraint and adequate contact area for smooth operation.
Solution Approach 2:
The guide profile is arranged axially to the guide roller, utilizing the axial dimension for guidance while the radial dimension provides the running surface. This dimensional separation allows both functions to coexist without compromising either guidance precision or surface area.
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
The solution enhances the ease of pulling out refrigerated goods containers while minimizing noise and preventing lateral displacement and tip-over, ensuring efficient and safe handling.
Implementation Method 1
a guide roller (24) and a guide rail (26) for guiding the guide roller (24)
Implementation Method 2
a guide profile (28) arranged axially to the guide roller (24). The guide profile (28) is arranged at a distance from the guide roller (24) and also from the running surface (42)
Data Source
Figure 1~4
Figure 2
Figure 3
AI summary
The invention relates to guiding assembly (20) for guiding a container for refrigerated goods (14) in a refrigeration device (10), comprising a guiding roller (24) and a guiding rail (26) for guiding the guiding roller (24), wherein the guiding rail (26) has a running surface (42) arranged radial to the guiding roller (24) and a guiding profiled element (28) arranged axial to the guiding roller (24), which guiding profiled element is arranged at a distance from the guiding roller (24) and the running surface (42). The invention further relates to a combination (12) of a container for refrigerated goods (14) for a refrigeration device (10) and a bearing surface (16) for bearing the container for refrigerated goods (14) in a refrigeration device (10), wherein the combination (12) comprises the guiding assembly (20).