Cooling Device Drawer Roller Assembly for Easy Movement and Durability
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Solution Overview
Problem
Current cooling devices with drawers are cumbersome to pull out and push back in, especially when full, due to the lack of efficient movement mechanisms, leading to user strain and potential damage to rollers and casings from heavy loads.
Innovation Solution
A cooling device design featuring rollers mounted on a single piece casing with a hollow cylindrical shaft, allowing easy assembly and rotation, and a fixing element that secures the casing to the body with minimal parts, preventing jamming and facilitating effortless drawer movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rollers are used to facilitate drawer movement, then ease of operation is improved, but device complexity increases due to multiple components (rollers, shafts, casings)
Solution Approach 1:
The patent combines the roller, shaft, and casing into a single integrated roller assembly unit that is pre-assembled and then mounted to the drawer. This merging of components into a modular unit reduces the overall device complexity while maintaining the ease of operation benefit, as the integrated unit functions as a complete movement facilitation system without requiring separate assembly of multiple discrete parts.
2Reliability
If multiple fixing elements are used to secure rollers and casings, then reliability is improved, but ease of manufacture deteriorates due to complex assembly
Solution Approach 1:
The roller, shaft, and casing are merged into a single pre-assembled unit that attaches to the drawer as one component. This integration ensures reliable attachment through a unified mounting structure while dramatically simplifying the manufacturing and assembly process, as the integrated unit requires only single-step installation rather than multiple separate fixing operations.
3Ease of manufacture
If rollers are exposed without casing, then ease of manufacture is improved, but object-affected harmful factors increase due to vulnerability from outside effects
Solution Approach 1:
The roller is nested within the hollow cylindrical shaft, which is in turn nested within the protective casing. This nested structure provides comprehensive protection for the roller against external harmful factors such as dust, moisture, and physical damage, while the hollow shaft design maintains ease of manufacture by allowing simple sequential assembly of the nested components.
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
Enables easy and strain-free movement of drawers with reduced risk of damage to rollers and casings, while allowing for inexpensive and quick assembly with a single fixing element, enhancing user convenience and durability.
Implementation Method 1
rollers positioned on the shaft such that they can rotate around the central axis of the shaft
Implementation Method 2
rollers that facilitate the movement of the drawer (4) situated on it
Data Source
Figure 1~2
Figure 3~5
Figure 6~8
AI summary
The present invention relates to a cooling device (1) comprising one or more rollers (6) easily assembled on the cabin (2), that facilitate the movement of the drawers (4) situated on it.