Elastic Band with Interwoven Cloth and Latex Layers
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Solution Overview
Problem
Conventional elastic bands used for exercise are prone to breakage due to insufficient reinforcement and suffer from elasticity fatigue over time, limiting their random stretching and retraction capabilities.
Innovation Solution
An elastic band constructed with multiple warps, latex yarns, and latex threads interweaved with elastic layers, reinforced by a sewing machine with frames and steel buckles, allowing for enhanced durability and elasticity through specific weaving patterns and material combinations such as rubber threads or thermoplastic rubber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional elastic band structure is used, then manufacturing is simple, but durability is poor and breakage occurs easily
Solution Approach 1:
The elastic band is divided into multiple functional layers including elastic layers, reinforcement layers, and cover layers, with each layer serving a specific purpose. The elastic layers provide stretchability while reinforcement layers prevent breakage, and cover layers protect the internal structure. This segmentation allows the band to achieve high durability without excessive overall complexity.
Solution Approach 2:
The elastic band combines multiple materials with different properties: elastic materials (latex or TPR) for stretchability, reinforcement materials (nylon, polyester, or elastic threads) for strength, and cover materials for protection. This composite structure resolves the contradiction by integrating materials that individually address different requirements, achieving both durability and manageable complexity.
2Duration of action of moving object
If elastic band is stretched repeatedly, then exercise functionality is achieved, but elasticity fatigue occurs over time
Solution Approach 1:
Reinforcement layers are pre-integrated into the elastic band structure before use, positioned strategically at high-stress areas. These reinforcement layers act as a cushion against potential failure, preventing elasticity fatigue from developing into breakage even after repeated stretching cycles during exercise usage.
Solution Approach 2:
The patent specifies optimal parameter ranges including stretching ratio (100%-400%), width (1-11 cm), thickness (0.4-5 cm), and length (50-500 cm) to ensure the elastic band maintains reliability throughout its service life. These parameter optimizations allow the band to withstand repeated stretching while maintaining consistent elastic performance.
3Reliability
If multiple layers and materials are used, then durability and elasticity are improved, but manufacturing complexity increases
Solution Approach 1:
Multiple functional layers are combined into a single integrated elastic band structure through continuous manufacturing processes. The elastic layers, reinforcement layers, and cover layers are merged during production rather than assembled separately, which maintains breakage resistance while simplifying the manufacturing process and reducing assembly complexity.
Solution Approach 2:
The sewing machine with multiple frames and steel buckles performs multiple functions simultaneously: it guides multiple warps, interweaves different materials, and secures the layered structure in a single integrated process. This multi-functional approach handles the complexity of multiple layers and materials while maintaining manufacturing efficiency.
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 solution provides a durable and elastic band with improved resistance to breakage and elasticity fatigue, allowing for a stretching ratio of up to 400% and suitable dimensions for various exercise applications.
Implementation Method 1
multiple latex yarns, and plural latex threads which are interweaved so as to produce the elastic band... the multiple elastic layers are interweaved by the multiple warps, the multiple latex yarns, and the plural latex threads
Data Source
AI summary
An elastic band contains: multiple warps, multiple latex yarns, and plural latex threads which are interweaved so as to produce the elastic band. The multiple warps include a plurality of cloth layers formed on side surfaces and bottoms of the multiple warps respectively, and the multiple warps include multiple elastic layers arranged among the plurality of cloth layers individually. The multiple elastic layers are interweaved by the multiple warps, the multiple latex yarns, and plural latex threads. A sewing machine includes multiple frames and multiple steel buckles so that the multiple warps are inserted through multiple frames repeatedly, and the multiple warps, the multiple latex yarns and the plural latex threads are inserted through the multiple steel buckles repeatedly so as to produce the elastic band.