Extendable Polygonal Frame for Controlled Area and Volume Change
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Solution Overview
Problem
Existing technologies do not effectively utilize extendable arms to change the area or volume of frames and three-dimensional structures in a controlled and efficient manner.
Innovation Solution
A variable area frame and three-dimensional structure design that incorporates extendable arms with pivotally coupled cross units and a coupling mechanism allowing for the extension and contraction of sides, enabling the adjustment of area and volume through the movement of these arms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If extendable arms are used to change the area or volume of frames and three-dimensional structures, then the area or volume can be adjusted, but the structure becomes more complex
Solution Approach 1:
The patent applies dynamics by making the frame structure movable and adjustable through extendable arms with cross units that can pivot and extend/contract. This allows the frame to dynamically change its area and volume while maintaining structural integrity through the coupling mechanism between adjoining arms.
Solution Approach 2:
The extendable arms are segmented into multiple cross units, each consisting of two rigid members connected by a middle coupling shaft. This segmentation allows independent extension and contraction of each unit, enabling controlled area adjustment while distributing structural complexity across modular components.
2Productivity
If multiple cross units are connected to form extendable arms, then the area can be effectively changed, but the number of parts increases
Solution Approach 1:
The patent merges multiple cross units into a single extendable arm structure, where adjoining arms are coupled through a shared coupling mechanism. This combining approach allows coordinated extension and contraction of multiple units simultaneously, improving area change efficiency while reducing the number of independent control systems needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design allows for the controlled change of area and volume of frames and structures, providing versatility in applications such as toys, architectural structures, and other uses by maintaining similarity in shape while adjusting size.
Implementation Method 1
two rigid members crossing each other to form an X-shape via a middle coupling shaft
Implementation Method 2
an end coupling portion that pivotally couples ends of adjoining ones of the cross units
Data Source
AI summary
A variable area frame includes: extendable arms forming each side of a polygonal frame; and a coupling mechanism that couples adjoining two of the extendable arms so that these two extendable arms can move together, in order to allow adjoining two sides of the polygonal frame to extend and contract together. Each extendable arm includes a plurality of cross units each formed by pivotally coupling two rigid members, which cross each other to form an X-shape, via a middle coupling shaft, and an end coupling portion that pivotally couples ends of adjoining ones of the cross units.