Friction-Based Flexible Material Securing Mechanism
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Solution Overview
Problem
Existing solutions for securing flexible materials like waste bags often rely on rigid receptacles or hooks, which may not effectively prevent shearing or stretching, especially under load, and do not provide a secure and accessible way to hold thin flexible materials.
Innovation Solution
An apparatus comprising a first securing member with an outer circumference and a second securing member with an inner circumference, where the inner circumference is slightly smaller, creating static friction to immobilize the flexible material without shearing, and a backing support for added stability, allowing the material to be securely held without strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rigid receptacles or hooks are used to secure flexible materials, then the materials can be held in place, but the materials are susceptible to shearing and stretching under load
Solution Approach 1:
The securing members are designed to be flexible rather than rigid, allowing them to conform to the flexible material being secured. This dynamic adaptation enables the members to distribute loads evenly across the material surface, preventing concentrated stress points that would cause shearing or stretching while maintaining secure holding under various load conditions.
Solution Approach 2:
The securing members utilize static friction through controlled contact pressure between the first and second members. By adjusting the pressure parameter and contact surface area, the system achieves reliable securing without rigid constraints, allowing the flexible material to be held securely while accommodating its natural movement and deformation characteristics.
2Reliability
If static friction is created between securing members to immobilize flexible material, then the material is secured without shearing, but the securing members require precise dimensional matching
Solution Approach 1:
The design utilizes static friction through controlled pressure between the first and second securing members. By optimizing the contact pressure and surface area parameters, the system achieves reliable immobilization of flexible materials without requiring extremely tight dimensional tolerances. The friction-based mechanism provides a tolerance buffer that accommodates normal manufacturing variations.
Solution Approach 2:
The securing system is divided into two separate members (first and second securing members) that can be manufactured independently. This segmentation allows each member to be produced with standard tolerances, and the friction-based interaction between them compensates for dimensional variations, eliminating the need for complex precision matching while achieving reliable immobilization.
3Stability of the object's composition
If a backing support is added to the securing apparatus, then stability is improved, but the device complexity increases
Solution Approach 1:
The backing support is integrated with one of the securing members rather than being a completely separate component. This merging approach provides the necessary stability and support function while minimizing the increase in device complexity. The integrated design allows the backing support to work in conjunction with the friction-based securing mechanism without requiring additional complex assembly or adjustment procedures.
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 apparatus effectively secures flexible materials by creating static friction between the outer and inner circumferences, preventing shearing and allowing the material to be immobilized without strain, even under heavy loads, while maintaining accessibility for easy installation and removal.
Implementation Method 1
creates static friction between the outer circumference and the inner circumference
Data Source
AI summary
An apparatus for securely holding a flexible material has a first securing member has a first outer circumference and a first shape, and a second securing member having a second inner circumference and a second shape Wherein the second inner circumference is about the same size, or slightly smaller than, the first member's first outer circumference, such that the second member positioned upon the first member creates static friction between the first outer circumference and the second inner circumference. The apparatus has a backing support that is in physical connection with, or incorporated as part of, either the first member or the second member. A thin flexible material, such as a plastic waste bag, placed between the first member and the second member is secured by positioning the first member and second member together, the positioning and static friction not shearing the flexible material. The static friction between the first outer circumference and the second inner circumference secures and immobilizes the thin flexible material contained within.