Collapsible Bed Frame Rotating Connectors for Tool-Free Assembly
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Solution Overview
Problem
Existing collapsible bed frames are not user-friendly due to the need for assembly and disassembly with tools, requiring time and effort, and the risk of losing disassembled parts, which complicates the process of expanding or contracting the frame.
Innovation Solution
A collapsible bed frame design featuring rotatably connected lateral and longitudinal bar units with integrated connectors that allow the frame to expand and contract without disassembly, using a system of first and second longitudinal bar units and supporting pieces with receptacles for easy assembly and disassembly, eliminating the need for tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If bed frame components are disassembled for shipping to save space and reduce cost, then shipping volume and cost are reduced, but assembly and disassembly require tools and time, and parts may be lost
Solution Approach 1:
The bed frame is divided into modular components (lateral bars, longitudinal bars, connectors, supporting bars) that can be independently packaged and shipped. Each component is designed with specific connection interfaces that enable tool-free assembly through simple snap-fit or insert mechanisms, eliminating the need for screws and bolts while maintaining structural integrity.
Solution Approach 2:
Connectors serve as intermediary elements between lateral and longitudinal bars, providing a standardized interface that simplifies assembly. The connectors include integrated features such as recesses, protrusions, and guiding structures that align components and secure connections without requiring external tools or fasteners.
2Strength
If traditional connectors are used requiring screws and bolts, then connection strength is sufficient, but assembly requires tools and disassembled parts must be stored carefully
Solution Approach 1:
Multiple functions are merged into single integrated components. Connectors combine joining, alignment, and locking functions in one element. Supporting bars integrate connection points and structural support. This consolidation eliminates the need for separate fasteners (screws, bolts, nuts) and reduces the total number of parts, enabling tool-free assembly while maintaining connection strength through engineered interlocking mechanisms.
Solution Approach 2:
The connection system is designed to be self-assembling without external tools. Components feature self-aligning geometries (recesses matching protrusions, guiding edges, tapered interfaces) that automatically position parts correctly during assembly. The connectors include self-locking features that secure joints through simple insertion or snapping actions, making the assembly process intuitive and tool-independent.
3Volume of moving object
If bed frame is designed to be collapsible for storage, then storage space is reduced, but traditional designs require complete disassembly which is time-consuming
Solution Approach 1:
The bed frame employs dynamic, movable connections instead of fixed rigid joints. Longitudinal bars are designed to slide within connectors or along guided paths in lateral bars, enabling smooth expansion and contraction motions. This dynamic design allows the frame to transition between collapsed and expanded states through simple pushing or pulling actions, dramatically reducing the time and effort required compared to traditional disassembly procedures.
4Stability of the object's composition
If supporting bars are permanently fixed, then structural stability is maintained, but flexibility for different configurations is reduced
Solution Approach 1:
Supporting bars are designed with movable, adjustable connections at both ends, allowing them to be positioned at various locations along the longitudinal bars. The connection mechanisms include sliding interfaces, adjustable clamps, or snap-fit positions that enable the supporting bars to be repositioned according to different bed configurations (single bed, double bed, storage bed). This dynamic positioning capability maintains structural stability in each configuration while providing versatility for different uses.
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 design enables easy expansion and contraction of the bed frame without tools, reducing assembly time and storage space, while ensuring that all parts remain connected, thus enhancing user convenience and reducing the risk of lost components.
Implementation Method 1
an end of a corresponding first or second longitudinal bar unit is supported by the supporting piece and rotatably connected with the supporting piece by a fastener through the hole
Data Source
AI summary
A collapsible bed frame includes a plurality of lateral bar units, a plurality of first longitudinal bar units, and a plurality of second longitudinal bar units. The plurality of lateral bar units includes first and second outer lateral bar units and at least one inner lateral bar unit. A collapsible bed frame also includes a plurality of first connectors, each having a body and a supporting piece. The body is fixedly connected with an end of the first or second outer lateral bar unit, and the supporting piece is rotatably connected with an adjacent first or second longitudinal bar unit. The collapsible bed frame can contract and expand while the lateral and longitudinal bar units are connected with each other.