Bracket Plug Connector for Tool-Free Shelf Assembly and Rearrangement
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Solution Overview
Problem
Existing storage systems require separate screws for connecting shelves to cantilevered brackets, necessitating tools for installation, leading to potential damage, reduced shelf lifespan from repeated rearrangement, and an aesthetically unpleasing appearance with visible screw heads.
Innovation Solution
A connector element with an insert inside the U-shaped bracket and a dowel extending into the shelf, combined with a coupling sleeve and lock plug, allows for tool-free assembly and rearrangement, providing a hidden and secure connection without visible fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate screws are used for connecting the shelf to the bracket, then the connection is secure and reliable, but the assembly requires tools and skilled personnel, and the screw heads are visible creating an aesthetically unpleasing appearance
Solution Approach 1:
The connector element merges the functions of the screw and the bracket into a single integrated component. The connector element comprises an insert arranged inside the U-shaped cross-section of the bracket and a dowel extending from the insert into the shelf, eliminating the need for separate fixing elements and tools for installation
Solution Approach 2:
The insert is nested inside the U-shaped cross-section of the bracket, with the dowel extending from the insert into the shelf. This nested structure provides a secure connection while keeping the fastening mechanism hidden from view, creating an aesthetically pleasing appearance
2Reliability
If screws are used for connecting the shelf to the bracket, then the connection is secure, but repeated unscrewing and rescrewing wears the screw holes in the shelf, reducing the shelf lifespan
Solution Approach 1:
The connector element is designed with a dowel that inserts into a coupling sleeve in the shelf in a single action. This preliminary design eliminates the need for repeated unscrewing and rescrewing operations, preventing wear on the shelf holes and extending the shelf lifespan
Solution Approach 2:
The connector element is designed as a disposable or replaceable component that can be easily removed and reinstalled without damaging the shelf. The coupling sleeve and dowel design allows for tool-free assembly and disassembly, preventing cumulative damage to the shelf structure
3Reliability
If screws are used for connecting the shelf to the bracket, then the connection is secure, but the head of the screw extends from the outer surface of the bracket, creating a visual disadvantage and potential scratching risk
Solution Approach 1:
The screw head is extracted from the visible exterior and replaced with a hidden connector element. The insert is arranged inside the U-shaped cross-section of the bracket, and the dowel extends into the shelf, eliminating the need for visible screw heads on the outer surface of the bracket
Solution Approach 2:
The insert is nested inside the U-shaped cross-section of the bracket, concealing the fastening mechanism within the bracket structure. This nested arrangement provides a secure connection while maintaining a clean, aesthetically pleasing appearance without protruding elements
Data Source
AI summary
A storage system comprises a shelf (5) supported by a cantilevered bracket (4) and a connector element (6), connecting the bracket (4) with the shelf (5). The bracket (4) has a U-shaped cross-section. The connector element (6) comprises an insert (9), which is arranged inside the U-shaped cross-section of the bracket (4) and a dowel (10), which extends from the insert (9) into the shelf (5).