Refrigeration device having a tray
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Solution Overview
Problem
Refrigeration devices with fixed shelves and pull-out components have rollers that remain inside when the shelf is not inserted, impairing the visual appearance of the interior.
Innovation Solution
A displaceable tray supported on rollers is integrated into the refrigeration device, allowing easy access and removal of items, with guide rails and locks to manage movement and prevent tipping or damage, and optional glass or rubber materials for aesthetics and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pull-out component with rollers is arranged on a fixed shelf, then ease of operation is improved, but visual appearance deteriorates due to visible rollers remaining in the interior
Solution Approach 1:
The rollers are extracted from the visible interior space and relocated to the outer peripheral region of the shelf. This allows the tray to be pulled out smoothly while keeping the rollers hidden from view when the tray is in its retracted position, thus maintaining both ease of operation and visual appearance.
2Reliability
If guide rails are added to guide the tray movement, then reliability is improved, but device complexity increases
Solution Approach 1:
The shelf is segmented into a central positioning surface for the tray and an outer peripheral region containing the guide rails. This segmentation allows the guide rails to be integrated into the shelf structure without interfering with the tray's movement, providing reliable guidance while maintaining a clean, simple appearance.
3Adaptability or versatility
If the positioning surface is used as a depositing surface, then versatility is improved, but stability deteriorates due to lack of guide elements
Solution Approach 1:
The guide rails act as an intermediary element between the tray and the shelf. They provide the necessary guidance and stability for tray movement while remaining positioned in the outer peripheral region, allowing the central positioning surface to serve dual purposes as both a depositing surface and a stable guide surface.
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
Enhances the visual appeal and usability of refrigeration devices by allowing easy access and removal of items without visible rollers, improving safety and reducing noise, while maintaining a clean and damage-free interior.
Implementation Method 1
a tray supported in a displaceable manner on rollers is arranged on the shelf
Implementation Method 2
the guide rail comprises guide surfaces which cooperate with roller side walls of the rollers
Implementation Method 3
a pull-out lock is provided, said pull-out lock limiting a displacement of the tray on the shelf in the pulled-out direction
Implementation Method 4
a push-in lock is provided, said push-in lock limiting a displacement of the tray on the shelf in the pushed-in direction
Implementation Method 5
the rollers are manufactured from rubber. As a result, the technical advantage is achieved that the displacement of the tray on the shelf results in only a small degree of noise development
Data Source
AI summary
The invention relates to a refrigeration device having an interior space, in which a compartment bottom is arranged. According to the invention, a tray movably supported on rollers is arranged on the compartment bottom. The invention further relates to such a tray.