Stackable Storage Modules With Snap-Fit Curtain Cabinet Assembly
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Solution Overview
Problem
Existing storage units with deformable curtains face challenges in superimposing multiple modules without increasing height, requiring complex assembly and tools, which can be hazardous and tedious, especially when trying to avoid curtain jamming.
Innovation Solution
A storage cabinet design featuring side walls as cassettes with deformable curtains that can slide in and out, allowing for quick attachment and detachment of modules using snap-fastening means without tools, enabling easy assembly and adaptation to single or stacked configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If storage units are assembled using traditional screwing or clamping methods, then the assembly is secure and reliable, but the assembly process becomes long, tedious, and requires tools and multiple people
Solution Approach 1:
The patent replaces traditional mechanical fastening systems (screws, clamps) with a snap-fit mechanism. The upper module has engagement protrusions that fit into corresponding recesses in the lower module, allowing tool-free assembly by simply pressing the modules together until they click into place. This substitution eliminates the need for screwdrivers or clamping tools and enables single-person assembly.
Solution Approach 2:
The snap-fit connection system is designed to be self-aligning and self-securing. The engagement protrusions automatically guide the modules into correct alignment during assembly, and the elastic deformation of the plastic components provides automatic locking without requiring additional fastening operations. The system serves itself by utilizing the material's elastic properties to maintain the connection.
2Ease of operation
If storage units are designed for easy tool-free assembly, then assembly becomes simple and rapid, but the structural strength and reliability may be compromised
Solution Approach 1:
The patent utilizes composite construction by combining rigid plastic components (the main module bodies) with elastic plastic elements (the engagement protrusions and recesses). The rigid parts provide structural strength and stability, while the elastic parts provide flexibility for assembly and secure locking. This composite approach allows the snap-fit connection to achieve both ease of assembly and sufficient connection strength.
Solution Approach 2:
The engagement surfaces incorporate curved and rounded features rather than sharp angles. The engagement protrusions have rounded tips and the recesses have curved entry paths, which facilitate smooth insertion and distribution of assembly forces. This curvature prevents stress concentration and enhances the mechanical strength of the connection while maintaining ease of assembly.
3Quantity of substance
If multiple storage modules are superimposed to maximize space utilization, then storage capacity increases, but the total height increases and may create unusable excess height
Solution Approach 1:
The patent transitions from vertical stacking (increasing height in one dimension) to horizontal arrangement (increasing capacity across multiple dimensions). By designing modules that can be placed side-by-side on the same level rather than stacked vertically, the system maximizes storage capacity while maintaining a compact height profile suitable for standard room dimensions.
4Adaptability or versatility
If deformable curtains are used in storage units, then flexibility and adaptability are improved, but assembly becomes more delicate and risks curtain jamming
Solution Approach 1:
The patent divides the storage system into separate, pre-assembled modules, each with its own curtain already installed and tested. This segmentation allows the curtain to be assembled with its housing in a controlled factory environment where it can be properly positioned and tested, eliminating the risk of jamming during end-user assembly. The pre-assembled modules are then simply connected together using the snap-fit mechanism.
Data Source
Figure 1~3
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Figure 5
AI summary
The furniture (1) has lateral wall (10) arranged under a cassette enclosing a deformable curtain (5). An external face of an upper wall (3) has imprints (3.3, 3.6) for receiving a finish plate (9), in case of utilization of the furniture into a single module or constituting a lower wall (2) of the furniture, in case of utilization of the furniture into superimposed modules. Top and bottom parts of the upper wall have rapid fixation units, where one of the fixation units forms a part of one of the imprints of the external face of the wall.