Prefabricated shelf assembly
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Solution Overview
Problem
Conventional shelf assemblies face challenges such as requiring tool-assisted bolt fastening, difficulty in bearing high loads, complex manufacturing, poor utilization, fixed shapes, and exposed coupling grooves, limiting design versatility and appearance.
Innovation Solution
A prefabricated shelf assembly with a main body comprising a vertical frame and horizontal frame, using fitting protrusions and holes for easy assembly and adjustment, and an assembly kit with various brackets for customizable installation, including an outer-wall unit and door unit for enhanced stability and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bolt fastening method is used to attach the shelf, then the shelf can be securely fixed, but it requires tool assistance and complicates the assembly process
Solution Approach 1:
The patent replaces the traditional bolt fastening mechanism with a click-lock mechanism featuring a pressing portion and groove structure. This substitution eliminates the need for tools while maintaining secure fixation through geometric interlocking and elastic deformation of the pressing portion, resolving the contradiction between reliable fixation and ease of assembly.
Solution Approach 2:
The shelf components are designed to self-align and self-lock through the pressing portion engaging with the groove. The elastic pressing portion automatically adjusts to secure the connection without requiring external tools or complex assembly procedures, enabling tool-free assembly while ensuring stable fixation.
2Ease of manufacture
If a coupling protrusion structure is used to fix the shelf, then the shelf can be attached, but it has difficulty bearing high loads and complicates manufacturing
Solution Approach 1:
The connection structure is divided into distinct functional elements: a pressing portion with pressing surface, a groove structure with bottom surface and side walls, and a pressing hole. This segmentation allows each component to be optimized independently - the pressing portion for ease of manufacture and the groove structure for load distribution - resolving the contradiction between manufacturing simplicity and load-bearing capacity.
Solution Approach 2:
The connection mechanism combines elastic material properties of the pressing portion with the rigid geometric structure of the groove. The elastic pressing portion deforms to engage the groove while distributing loads across multiple surfaces (pressing surface, bottom surface, side walls), creating a composite structure that maintains strength without complicating manufacturing.
3Ease of manufacture
If the shelf is designed with fixed shape and configuration, then manufacturing is simplified, but design versatility and adaptability to different installation environments are limited
Solution Approach 1:
The shelf system incorporates adjustable elements including the pressing portion that can engage at different positions along the groove, and the support plate with adjustable support surfaces. This dynamic adjustability allows the same manufactured components to adapt to various installation environments and design requirements without requiring custom manufacturing, resolving the contradiction between manufacturing simplicity and installation flexibility.
4Ease of operation
If the coupling groove is exposed to the outside for easy assembly, then assembly is simplified, but the appearance quality deteriorates
Solution Approach 1:
The pressing portion is nested within the groove structure during assembly, with the pressing hole positioned to allow access while the pressing surface remains concealed or integrated into the overall design. This nesting arrangement enables easy assembly through the pressing hole while maintaining clean, high-quality appearance by hiding the coupling groove from external view.
Data Source
AI summary
Provided is a prefabricated shelf assembly. The prefabricated shelf assembly enables a shelf to be conveniently and rapidly assembled, enables the assembled shelf to be firmly maintained, and allows an outer wall and a door to be assembled as a user desires, thus realizing a high-quality product, and allows the length of the shelf to be adjusted via an assembly kit or allows a plurality of shelves to be optionally arranged and then be assembled depending on an installation environment, and adopts a coupling method using a fitting protrusion and a fitting hole, so that the shelf may be re-assembled by separating only a support plate even when the assembly has been completed, and thereby the height of a storage part can be easily changed.