Drawer Sliding System with Lacquer Coating to Reduce Friction and Cost
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Solution Overview
Problem
Existing drawer sliding systems require expensive components like metal rails and bearings to achieve low friction and robust operation, making them costly and inefficient for manufacturing and use.
Innovation Solution
A drawer sliding system with a sliding surface coated in a lacquer comprising a resin and a lipophilic composition coating, applied to materials like aluminum or steel, which reduces friction and eliminates the need for expensive components by providing a low-friction, long-lasting sliding solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal rails and bearings are used to achieve low friction and robust operation, then the drawer sliding system achieves reliable and smooth movement, but the manufacturing cost and component expense increase significantly
Solution Approach 1:
The patent replaces the mechanical rolling system (rails and bearings) with a direct sliding system using a lacquer coating on the sliding surface. The lacquer layer provides low-friction sliding through its material properties rather than mechanical rolling elements, eliminating the need for expensive metal rails and bearings while maintaining reliable drawer operation
Solution Approach 2:
The patent changes the surface property parameter by applying a lacquer coating with specific friction characteristics. The lacquer layer transforms the sliding surface from high-friction metal-to-metal contact to low-friction lacquer-to-metal contact, achieving smooth drawer movement through material property modification rather than complex mechanical components
2Reliability
If complex guiding systems with multiple components are used, then the drawer movement is well-controlled and stable, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent extracts and eliminates the complex guiding system components (rails, bearings, rollers) from the drawer assembly, retaining only the essential sliding interface. The simplified system uses a single sliding surface with lacquer coating instead of multiple interlocking mechanical components, reducing device complexity while maintaining movement stability through the low-friction coating
Solution Approach 2:
The patent merges the functions of multiple components (guiding, lubrication, friction reduction) into a single integrated sliding surface with lacquer coating. Instead of separate rails for guidance and bearings for friction reduction, the lacquer-coated surface performs all functions simultaneously, simplifying the overall drawer construction
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 system achieves significant reduction in sliding friction, lasting through numerous cycles without the need for replenishment, and is cost-effective by utilizing common materials, thus addressing the expense and efficiency issues of prior systems.
Implementation Method 1
The lacquer is in turn at least partly coated with a lipophilic composition coating to provide a slide layer with lowered friction
Implementation Method 2
The aluminum bar may have an anodized oxide surface layer onto which the lacquer is applied
Implementation Method 3
The Honny process or one of its derivatives may be used to obtain such anodized, lacquered surfaces... electrophoretically, preferably anaphoretically coated with an acrylic resin
Data Source
Figure 1a~1b
Figure 2a~4b
Figure 5a~5b
AI summary
A sliding system (100, 200, 300, 400, 500, 600) for a drawer (5a-c) is provided. The sliding system comprises at least two parts being moveable relative each other and adapted for together forming a connection between the drawer (5a-c) and an associated cabinet (3), wherein one of said at least two parts comprises at least one sliding surface being coated with a lacquer comprising a resin, wherein said lacquer in turn is at least partly coated with a lipophilic composition coating to provide a slide layer with a lowered friction.