Tripartite Hair-Friendly Swimming Cap Design
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Solution Overview
Problem
Existing swimming caps fail to provide a combination of roominess, watertightness, comfort, and inconspicuousness, leading to reduced popularity among recreational swimmers and potential health benefits due to issues like deformation of hairstyles, compromised tightness, and durability problems with zippers and straps.
Innovation Solution
The Hair-Friendly Swimming Cap features a tripartite main body with a spherical upper portion, a spherical middle portion for stability, and a concave lower portion, along with a clamping annular band and seepage-prevention strips to maintain hairstyle shape and prevent water entry, using lightweight and waterproof materials with a secure yet comfortable fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cap uses a tight-fitting design to ensure watertightness, then water sealing is improved, but hairstyle deformation and comfort deteriorate
Solution Approach 1:
The cap is divided into three distinct portions: a lower concave portion for head contact, a middle spherical portion for hair accommodation, and an upper spherical cap portion for voluminous hairstyles. This segmentation allows each section to serve its specific function - the lower portion ensures watertightness through close head contact, while the middle and upper portions provide increasing space to maintain hairstyle shape without deformation.
2Shape
If the cap uses rigid material segments to accommodate hair volume, then hairstyle shape is maintained, but comfort and inconspicuousness deteriorate
Solution Approach 1:
The cap is constructed from flexible, stretchable material that forms a thin film structure. This allows the cap to conform to the head shape and accommodate various hairstyles without rigid support, providing comfort while maintaining an inconspicuous, low-profile appearance. The flexibility enables the cap to adapt to different head sizes and hair volumes without requiring bulky rigid segments.
3Reliability
If the cap uses zippers and straps to ensure tightness, then watertightness is improved, but durability and comfort deteriorate
Solution Approach 1:
The design removes problematic mechanical fastening elements such as zippers and straps from the cap structure. Instead, watertightness is achieved through the elastic properties of the material and the contoured fit of the three portions against the head. This extraction of harmful mechanical components eliminates their durability issues and comfort problems while maintaining effective water sealing.
4Shape
If the cap is designed to be roomy to accommodate hairstyles, then hairstyle shape is maintained, but watertightness and comfort deteriorate
Solution Approach 1:
The cap applies different spatial characteristics to different regions: the lower concave portion provides a tight, conforming fit for watertightness at the head-contact area, while the middle and upper portions progressively increase in volume to accommodate hairstyles. This local differentiation of spatial quality allows the cap to be roomy where needed for hair while maintaining tightness where needed for water sealing.
Data Source
AI summary
An article of swim gear consisting of a cap for protecting the hair during the practice of recreational swimming or other aquatic sports. The cap comprises a main body whose tripartite structure allows the accommodation of the hair without squeezing it, thus maintaining the shape of the hairdo. The cap also comprises an internal positioning-blocking unit consisting of an annular band attached to the rim of the cap by only one of its edges, which gently holds the cap to the user's head, and a seepage-prevention strip cantilevered over the outer face of the annular band, which stops and absorbs the water that could seep under the edge of the cap in the areas of neck and temples. Three embodiments of the cap are described and graphically illustrated.