Leaktight Underpants Protective Assembly Seam Integration
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Solution Overview
Problem
Existing leak-proof pants with protective assemblies have multiple visible seams, which affect aesthetics and comfort due to increased friction with the skin, and their design does not optimize absorbency and fluid management effectively.
Innovation Solution
The protective assembly is integrated into the pant design by attaching the absorbent and draining layers to the side seams and waist edges, using pre-existing seams to minimize visible fastening, and incorporating an impermeable layer to enhance absorbency and prevent fluid leakage, while optimizing the placement of layers to reduce thickness and improve comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the protective assembly is attached to the fabric body using multiple seams, then the protective function is improved, but the visible seams increase affecting aesthetics and comfort
Solution Approach 1:
The patent merges the attachment seams of the protective assembly with the pre-existing side seams of the fabric body. The protective assembly is attached to the fabric body at the side seams, so that the attachment seams coincide with the side seams, making them invisible from the outside. This merging of seam locations resolves the contradiction by maintaining protective function while eliminating visible seams.
Solution Approach 2:
The patent uses the pre-existing side seams as an intermediary element to attach the protective assembly. Instead of creating new visible seams, the side seams serve as a mediator that provides both structural attachment and aesthetic concealment, allowing the protective assembly to be integrated without adding visible lines.
2Reliability
If multiple seams are used to attach the protective assembly, then the protective function is improved, but the friction with skin increases reducing comfort
Solution Approach 1:
By merging the attachment seams with the pre-existing side seams, the patent reduces the total number of seams inside the panty. Fewer seams mean less friction with the skin, thereby improving comfort while maintaining the protective function through the integrated attachment method.
3Reliability
If the absorbent layer and draining layer are positioned to extend front to back, then the absorbency is improved, but the thickness increases
Solution Approach 1:
The patent applies local quality by positioning the absorbent layer specifically at the back of the pants and the draining layer at the front, rather than uniformly distributing them. This localized arrangement optimizes absorbency in the crotch area while minimizing overall thickness, as each layer is placed only where it is most needed for fluid management.
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
This design reduces visible seams, enhances absorbency, minimizes skin friction, and effectively manages fluid losses, providing improved comfort and aesthetic appeal while maintaining or improving the protective function of the pants.
Implementation Method 1
the absorbent layer absorbs more fluid loss
Implementation Method 2
the draining layer further wicks fluidic losses to the absorbent layer
Implementation Method 3
the draining layer further wicks fluidic losses to the absorbent layer
Implementation Method 4
The impermeable layer makes it possible to prevent excessive fluid losses from piercing the tissue body
Data Source
Figure 1a~1b
Figure 2a~3d
Figure 4a~5e
AI summary
Leaktight underpants (100) comprise a fabric body with a waist opening (120) and a pair of leg openings (110, 111). They comprise a front part and a rear part, the front and rear parts being fastened together by lateral seams (150, 151). The leaktight underpants (100) comprise, in the crotch part (160), a protective assembly, the protective assembly comprising an absorbent layer (300) and a draining layer (200), which are fastened to the edge portion of each leg opening (110, 111). The absorbent layer (300) or the draining layer (200) is fastened to the lateral seams (150, 151) of the front or rear parts of the fabric body, only the absorbent layer (300), or only the draining layer (200), being fastened to the rear edge or to the front edge, respectively, delimiting the waist opening (120).