Rail for cabinets
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Solution Overview
Problem
Existing furniture components for locking panels in cabinets require tools for assembly and may lead to incorrect installation, lacking stability and ease of use.
Innovation Solution
A locking rail system with interlocking tongues and grooves that engage panels in multiple directions, allowing tool-free assembly and enhanced stability, comprising a first and second locking device with perpendicular tongues and an interconnecting extension, made of sheet metal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional locking components are used to connect panels, then the panels can be locked together, but tools are required for assembly and installation becomes complex
Solution Approach 1:
The locking rail system enables self-service assembly through its self-explanatory geometry. The locking tongues and grooves are designed to fit together intuitively without requiring tools or specialized installation knowledge. The panels and locking rail can be assembled by simply aligning and pressing the components together, making the system user-friendly and tool-free
Solution Approach 2:
The locking system is divided into separate modular components: locking tongues integrated into the panels and a separate locking rail with corresponding grooves. This segmentation allows each component to be manufactured independently and assembled easily, reducing installation complexity while maintaining secure locking functionality
2Stability of the object's composition
If traditional locking methods are used, then panels can be connected, but stability in multiple directions is insufficient
Solution Approach 1:
The locking system provides stability in three dimensions by engaging panels in multiple directions. The locking tongues extend in perpendicular directions to lock panels both horizontally and vertically, while the locking rail provides additional vertical restraint. This multi-directional engagement creates a stable three-dimensional locking structure without complex mechanisms
Solution Approach 2:
Multiple locking functions are merged into a single integrated locking rail component. The rail combines horizontal locking engagement with vertical positioning and restraint functions, eliminating the need for separate locking mechanisms for each direction and achieving multi-directional stability through a unified structure
3Reliability
If conventional locking rails are used, then panels can be locked, but the risk of incorrect installation increases
Solution Approach 1:
The geometry of the locking tongues and grooves is designed to be self-explanatory and intuitive. The fitting surfaces and engagement features naturally guide correct alignment, making it obvious how the components should be assembled. This eliminates ambiguity and prevents incorrect installation without requiring additional guides or complex positioning mechanisms
4Productivity
If traditional panel connection methods are used, then panels can be joined, but manufacturing and installation time increases
Solution Approach 1:
The locking tongues are pre-integrated into the panels during panel manufacturing, and the locking rail is designed with pre-formed grooves and engagement features. This preliminary preparation of locking features eliminates the need for on-site assembly operations such as drilling, screwing, or complex fastening, allowing rapid installation by simply aligning and pressing the components together
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
A locking rail (1) for locking of a first and a second panel (2,3) in a horizontal position is described. The first and second panel (2,3) each comprises an essentially vertical panel surface and an essentially horizontal edge surface. The locking rail (1) comprises a first and a second locking device (4,4') which are configured to engage the edge surface of 5 the first and the second panel (2,3), respectively, and an interconnecting extension (5) which extends between said first and second locking device (4,4'). The first and second locking device (4,4') each comprises a first locking tongue (6,6') which extends essentially perpendicular to the interconnecting extension (5). The first locking tongue (6) of the first locking device (4) is configured for locking of the first panel (2) in a first 10 horizontal direction (D2) and the first locking tongue (6') of the second locking device (4') is configured for locking of the second panel (3) in the first horizontal direction (D2). The locking rail also comprises a first locking part (7,7') which extends essentially perpendicular to the interconnecting extension (5).