Bed Frame Wedge-Insert Assembly for Tool-Free Snap-Fit Connection
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Solution Overview
Problem
Conventional bed frames are heavy, cumbersome to assemble, and require tools, with sharp metal edges that can injure users during assembly and high shipping costs due to their weight and complex assembly processes.
Innovation Solution
A bed frame assembly using lateral and longitudinal bars with triangular slots and wedge inserts that snap together intuitively, eliminating the need for tools and providing a sturdy, lightweight structure that prevents mattress sliding without edge attachments, utilizing hollow rectangular metal bars and hook-and-loop fastening for wooden slats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional bed frames use angle iron and multiple cross bar members, then structural strength is improved, but weight and assembly complexity increase
Solution Approach 1:
The bed frame is divided into modular components: a base frame with four legs, and separate lateral and longitudinal bars that can be assembled together. This segmentation allows each component to be optimized independently and reduces the overall weight while maintaining structural integrity through the wedge insert connection system.
Solution Approach 2:
The invention uses composite construction combining metal bars (for structural strength) with wooden slats (for mattress support). The lateral and longitudinal bars are made of metal to provide strength, while the wooden slats provide the necessary support surface, creating a lightweight yet sturdy composite structure.
2Stability of the object's composition
If conventional bed frames use multiple cross bar members and angle iron, then structural stability is improved, but assembly difficulty increases
Solution Approach 1:
The wedge inserts are designed to be self-aligning and self-securing. When the lateral or longitudinal bar is inserted into the base frame, the wedge insert automatically wedges into the triangular slot, creating a secure connection without requiring tools or complex assembly steps. The system serves itself by using the insertion motion to create the locking mechanism.
Solution Approach 2:
The triangular slot and wedge insert act as an intermediary mechanism between the metal bars. This intermediary connection system simplifies the assembly process by providing a intuitive snap-fit interface, eliminating the need for bolts, screws, or complex joining methods while maintaining frame stability.
3Stability of the object's composition
If conventional bed frames use edge attachments with sharp metal edges, then mattress positioning is improved, but user safety deteriorates
Solution Approach 1:
The invention completely removes the harmful edge attachments with sharp metal edges from the design. Instead of using traditional edge guards or stops, the wedge insert system provides mattress positioning through the structural integrity of the assembled frame, eliminating the need for separate edge components that pose injury risks.
4Ease of operation
If conventional bed frames are assembled at the location of the bed, then final configuration is achieved, but shipping efficiency deteriorates
Solution Approach 1:
The bed frame is segmented into compact components that can be efficiently packed for shipping. The base frame, lateral bars, and longitudinal bars are separated and can be nested or stacked in a compact arrangement, reducing shipping volume and weight costs while allowing final assembly at the customer's location.
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 solution enables easy, tool-free assembly of a lightweight yet sturdy bed frame that fits in a compact shipping box, preventing mattress sliding and reducing assembly complexity and shipping costs, while ensuring user safety from sharp edges.
Implementation Method 1
The wedge insert has a slanted outer surface that contacts an inside slanted surface of the triangular slot when the wedge insert is lodged in the triangular slot
Implementation Method 2
The wedge insert is lodged in the triangular slot, preventing the bar from detaching from the support leg
Data Source
AI summary
A bed frame includes legs, bars and wooden slats. Each leg has first and second sides that meet each other at an edge. A first slot is disposed on the first side adjacent to the edge, and a second slot is disposed on the second side adjacent to the edge. Each bar has two wedge inserts. A first wedge on a lateral bar fits into the first slot, and a second wedge on a longitudinal bar fits into the second slot. The lateral bar is perpendicular to the leg while the first wedge is lodged in the first slot, and the longitudinal bar is perpendicular to the leg while the second wedge is lodged in the second slot. The first slot and the second slot are disposed between the lateral bar and the longitudinal bar while the first and second wedge inserts are lodged in the first and second slots.