Dome-Shaped Shutter Storage Device for Multi-Directional Load Support
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Solution Overview
Problem
Existing storage devices, such as indoor crime prevention shutters, cannot effectively support loads from multiple directions, leading to deformation and reduced usability when external forces are applied, limiting the ability to protect stored objects.
Innovation Solution
A storage device with a vertically divided dome-shaped shutter, an arc-shaped lower portion reinforcing member, and a housing with bearing and support portions that allow the shutter to rotate and support loads from multiple directions, ensuring the shutter can protect objects even under external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional shutter structure is used, then the device complexity is low, but the shutter cannot support loads from multiple directions and deforms under external forces
Solution Approach 1:
The shutter is divided into multiple independent support elements (first support portion, second support portion, third support portion, fourth support portion) that can independently bear loads from different directions. This segmentation allows the shutter to support multi-directional loads while maintaining a relatively simple overall structure, resolving the contradiction between strength and device complexity.
Solution Approach 2:
The invention transitions from a conventional planar shutter structure to a three-dimensional dome-shaped structure with support portions extending in multiple spatial dimensions. This dimensional change enables the shutter to resist loads from various directions simultaneously, significantly improving load support capability without proportionally increasing complexity.
2Reliability
If the shutter structure is reinforced to support external forces, then the strength increases, but the manufacturing complexity and cost increase
Solution Approach 1:
The dome-shaped shutter is segmented into multiple standardized support portions (first, second, third, fourth support portions) that can be manufactured independently and then assembled. This segmentation enables modular manufacturing, improving reliability through reinforced structure while maintaining ease of manufacture via standardized components.
Solution Approach 2:
Each support portion is designed to serve multiple functions: structural support, load bearing, and directional resistance. This multi-functionality reduces the total number of components needed, simplifying manufacturing while achieving high reliability through the reinforced dome structure.
3Adaptability or versatility
If a dome-shaped shutter with multiple support portions is used, then the shutter can support loads from multiple directions, but the device complexity increases
Solution Approach 1:
The dome-shaped shutter is divided into four main support portions positioned at different orientations, each capable of independently supporting loads from specific directions. This segmentation provides adaptability to multi-directional loads while keeping the structure organized and manageable, preventing excessive complexity.
Solution Approach 2:
The dome-shaped geometry naturally distributes loads from multiple directions across the curved surface and into the support portions. This spherical curvature provides inherent structural efficiency, enabling multi-directional load support with a relatively simple geometric form, thus improving adaptability without proportionally increasing complexity.
4Strength
If the shutter is made more rigid to prevent deformation, then the strength increases, but the ease of operation decreases
Solution Approach 1:
The shutter is segmented into multiple independent support portions that can move or adjust independently. This segmentation allows the overall structure to maintain high rigidity and deformation resistance while individual segments can accommodate operational movements, preserving ease of operation despite increased strength.
Data Source
AI summary
A storage device includes a shutter having a vertically divided dome shape formed by cutting a one-end-closed cylindrical shape at two planes, the one-end-closed cylindrical shape being formed by closing an upper end of a cylindrical portion whose axis line is along an up-down direction, an arc-shaped lower portion reinforcing member which has a higher rigidity than the cylindrical portion, a housing, which includes an opening portion, the opening portion being opened and closed by the shutter rotating around the axis line, a bearing portion provided in the housing, which suspends and supports the ceiling surface portion, a lower end support portion, which supports a lower surface of the lower portion reinforcing member at a plurality of locations; and an inner side support portion, which supports an inner peripheral surface of the lower portion reinforcing member at a plurality of locations.