Wedge-and-Receiver Bed Frame Connection for Tool-Less Assembly
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Solution Overview
Problem
Conventional bed frames require tools for assembly, which can be inconvenient and difficult, especially when tools are not available at the site of installation, and existing three-dimensional connection systems lack diversity in materials and geometric configurations for secure tool-less assembly.
Innovation Solution
A system using a wedge and receiver mechanism, where the wedge fits into the receiver to securely connect side rails and cross members of a bed frame without tools, utilizing the weight of the load to stabilize the connection, with various embodiments using different materials and geometric configurations such as cylindrical or segmented designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional bed frames are assembled at the site, then the bed frame can be set up at the intended location, but tools are required for assembly which can be difficult and complicated
Solution Approach 1:
The patent replaces traditional mechanical fastening systems (screws, bolts, and tools) with a wedge-based mechanical insertion system. The wedge component is simply inserted into the receiver to secure the connection between bed frame components, eliminating the need for complex assembly tools while maintaining structural integrity.
Solution Approach 2:
The wedge and receiver system is designed to be self-assembling without requiring external tools. The wedge is manually inserted into the receiver, and the connection is secured through the mechanical interaction between these two components, allowing the bed frame to be assembled by the end user without specialized equipment.
2Ease of operation
If plastic wedge and receiver components are used for tool-less assembly, then assembly is convenient, but additional materials and geometric configurations are needed for diverse applications
Solution Approach 1:
The patent describes multiple embodiments of the wedge and receiver system using different materials (plastic, metal, wood) and geometric configurations (tapered, cylindrical, segmented). This universal design allows the same basic wedge-and-receiver mechanism to be adapted for various bed frame components and assembly requirements, maintaining ease of tool-less assembly while providing versatility for different applications.
3Reliability
If the wedge and receiver connection is made secure, then the bed frame stability is improved, but the connection mechanism becomes more complex
Solution Approach 1:
The wedge component is designed with an asymmetric tapered geometry that allows it to be easily inserted into the receiver in one direction while providing a secure, locked connection when fully inserted. The asymmetric shape creates mechanical interlocking that ensures stability without requiring additional complex fastening mechanisms.
Solution Approach 2:
The patent describes cylindrical and curved geometric configurations for the wedge and receiver components. These curved surfaces facilitate smooth insertion while creating friction and mechanical interference that secure the connection, providing stability through the geometry of the curved interfaces rather than through complex additional mechanisms.
Data Source
AI summary
A connection system for use in joining structural members of a bed frame together. One of the structural members has a wedge and the other of the structural members has a cavity formed in a receiver. The wedge has a plurality of exterior surfaces that contact with a plurality of interior surfaces formed in the cavity. The wedge may be comprised of a plurality of wedge segments that enter into a plurality of openings in the receiver. The interfitting of the wedge into the receiver make a solid connection that is enhanced by weight of the bedding positioned thereon. The connection resists twisting forces as well as lateral and fore and aft forces.