Hinged Reusable Straw Design for Easy Cleaning and Assembly
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Solution Overview
Problem
Reusable drinking straws are often difficult to wash due to their design, and some models that attempt to address this issue are challenging to reassemble, limiting their acceptance in the market.
Innovation Solution
A reusable straw design featuring a pair of longitudinally extending straw body elements with a hinge that allows them to pivot between an assembled position for drinking and a splayed position for washing, along with a seal formed between the straw body elements to facilitate easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If reusable straws are made robust from metal or plastic, then durability is improved, but ease of washing deteriorates
Solution Approach 1:
The reusable straw is divided into two separate semicircular halves that can be detached from each other. This segmentation allows each half to be easily accessed and washed individually, solving the problem of difficult cleaning while maintaining the durability of robust materials.
2Reliability
If a seal is formed between straw body elements, then liquid-tight integrity is improved, but assembly complexity increases
Solution Approach 1:
The sealing function is merged with the structural connection between the two straw halves. The seal is integrated into the joint where the halves meet, combining the liquid-tight sealing requirement with the mechanical connection in a single unified feature rather than adding separate complex sealing mechanisms.
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 enables easy cleaning and assembly/disassembly of the straw, improving user experience and increasing the likelihood of market adoption by addressing the challenges of washability and reassembly.
Implementation Method 1
The extending second (insert) straw body element has an arcuate outer wall portion and a pair of resilient wings
Implementation Method 2
A hinge pivotally couples the base straw body element to the insert straw body element at a first longitudinal end of the of the straw
Data Source
AI summary
A straw composed of first and second straw body elements that are pivotally coupled at a first longitudinal end of the straw is described. The straw body elements can be pivoted between a stable drinking position in which a longitudinally sealed channel is formed between the straw body elements, and a splayed position suitable for washing internal channel wall portions of the straw body elements.