Clip Lock Fastener System for Tool-Free Furniture Assembly
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Solution Overview
Problem
Current fastening systems for furniture and cabinets are inefficient, requiring tools and instructions for assembly, leading to lengthy assembly times, potential loosening of fasteners, and visible fasteners that detract from the product's aesthetic value.
Innovation Solution
A fastener system featuring compressible clips and slots that allow for tool-less assembly, pre-installation, and secure locking without visible fasteners, using a body with center support sections and compressible clips that expand to lock into corresponding slots, ensuring stability and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional cam-locks and screws are used for assembly, then the furniture can be assembled with basic tools, but the assembly time becomes excessively long and requires multiple people and detailed instructions
Solution Approach 1:
The fastening system is divided into separate components: a fastener body with compressible clips that can be pre-installed in one panel, and a corresponding slot in another panel. This segmentation allows pre-assembly of components at the factory and rapid field assembly by simply inserting panels together without tools or instructions.
Solution Approach 2:
The compressible clips are pre-installed into the fastener body at the factory before shipping. This preliminary action eliminates the need for consumers to install fasteners during assembly, reducing assembly time and complexity while maintaining secure connections.
2Productivity
If cam-locks are used to join wood parts, then the furniture can be assembled flat-packed, but the fasteners become visible after assembly which detracts from aesthetic value
Solution Approach 1:
The compressible clips are nested within the fastener body and correspond to slots routed into the panels. When assembled, the clips are concealed within the panel thickness, making the fastening system invisible from the exterior while maintaining flat-pack shipping capability.
3Ease of operation
If cam-locks are used for furniture assembly, then the fasteners can be installed, but they gradually loosen and come apart after assembly is completed
Solution Approach 1:
The compressible clips utilize elastic deformation as a key parameter change. When inserted into the slot, the clips deflect elastically to engage with the slot walls, creating a friction-fit connection that maintains constant contact pressure. This elastic parameter change ensures the connection remains tight and stable over time without loosening.
4Ease of manufacture
If traditional fasteners are used, then the assembly process can be completed, but it requires tools and detailed instructions which increases complexity and time
Solution Approach 1:
The fastening system is designed to be self-explanatory and tool-free. The compressible clips automatically engage with the slot through simple insertion, requiring no tools, adjustments, or detailed instructions. This self-service design eliminates the time loss associated with reading instructions and using tools while maintaining ease of manufacture.
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 rapid assembly of furniture and cabinets, maintains stability by preventing fastener loosening, and provides an invisible fastening solution, enhancing the product's appearance and reducing assembly complexity and time.
Implementation Method 1
compressible clips that expand to lock into corresponding slots
Data Source
AI summary
A friction fit clip fastening system that creates a firm and invisible connection between panels or substrates without the use of tools or glue, comprising a fastener and mating rout. The fastener has a clip element that allows it to clip and connect to a mating rout. Different routs are used for different embodiments of the fasteners. The rout is formed directly in the panel face or edge or formed on a substrate by a router bit that has three cutting edges. The connections made by the friction fit clip fastening system are invisible. The fasteners can be installed at the manufacturing site so the user simply clips or slides the fasteners into the appropriate slot or rout when assembling. The friction fit fastening system is easily removable from the panels making assembling and disassembling quick and easy because the fastener is made of one piece. The friction fit clip fastening system can also be permanent if the permanent rout is used.