Rollable Reciprocal Frame Vault With Movable Joint Modules
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Solution Overview
Problem
Existing RF systems fail to achieve a vault structure and are limited in their ability to transform into a self-supporting, easily transportable, and space-efficient form.
Innovation Solution
A rollable framework design based on a Reciprocal Frame (RF) system with two-degree-of-freedom modules, utilizing cylindrical and prismatic joints to create a vault form by controlling degrees of freedom and curvature, allowing easy transportation and deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional RF system with simple joints is used, then the structure is easy to manufacture, but it cannot transform into a vault form and lacks mobility
Solution Approach 1:
The patent applies dynamics by transforming the static RF system into a kinetic structure with movable joints. The cylindrical and prismatic joints enable the structure to dynamically change its configuration between rolled and vaulted forms, allowing adaptation to different spatial requirements while maintaining structural integrity throughout the transformation process.
Solution Approach 2:
The vault structure is segmented into multiple RF modules, each capable of independent movement through cylindrical and prismatic joints. This segmentation allows the structure to be divided into manageable units that can be assembled, disassembled, and transformed independently, facilitating both the vault form creation and ease of transportation.
2Volume of moving object
If the RF system is made static with simple joints, then the structure is stable, but it occupies large space during storage and transportation
Solution Approach 1:
The patent implements nesting by allowing the RF modules to be collapsed and rolled into a compact cylindrical form for storage and transportation. The modular design enables each section to be nested within others, significantly reducing the volume occupied during transport while maintaining the ability to reconstruct the stable vault structure when deployed.
3Adaptability or versatility
If rotational and sliding joints are added to achieve vault form, then the structure becomes movable and transformable, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing joints that perform multiple functions: cylindrical joints provide both rotational movement and structural connection, while prismatic joints enable both sliding transformation and load bearing. These multi-functional joints reduce the need for separate specialized components, managing complexity while achieving transformability.
4Volume of moving object
If the structure is designed for easy transportation by folding, then it occupies less space, but the manufacturing complexity increases
Solution Approach 1:
The structure is divided into standardized RF modules that can be manufactured independently using conventional techniques. Each module is designed with integrated cylindrical and prismatic joints that are straightforward to fabricate, allowing mass production of identical units that can be easily assembled and folded for transportation without requiring complex custom manufacturing processes.
Data Source
AI summary
Disclosed is a rollable framework based on the RF (Reciprocal Frame) system, which can be used as post-disaster emergency structures, fair stands, industrial tents, or roof shells to meet the shelter needs of architecture, military, non-governmental organizations, and can be used as a vault by opening the closed rollable form.