Adjustable Diaper Outer Cover for Leg and Waist Fit
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Solution Overview
Problem
Existing absorbent articles struggle with size adjustment mechanisms that fail to securely fit differently sized wearers, often requiring multiple product sizes and hidden adjustment systems that are difficult to locate and use, leading to fit issues and user dissatisfaction.
Innovation Solution
A diaper outer cover with adjustable leg gasketing and waist features, featuring elastic strips and adjustment systems like buckles, clips, and guides that allow independent adjustment of leg and waist fit, with visible signals for easy access and use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a disposable absorbent article is designed as a single piece with integrated absorbent core and backsheet, then manufacturing is simpler, but the article cannot be adjusted to fit different body sizes and shapes
Solution Approach 1:
The absorbent article is divided into two separate pieces: an absorbent core and a backsheet with outer cover. This segmentation allows each component to be independently sized and shaped, enabling the backsheet to be customized for different body sizes and contours while the absorbent core can be optimized for absorption. The separate pieces can be assembled together to create a customized fit without requiring complex integrated design.
Solution Approach 2:
The outer cover of the backsheet is made adjustable through features such as fasteners, snaps, or elastic elements that allow the cover to be resized or reconfigured. This dynamic adjustment capability enables the same backsheet design to accommodate various body sizes and shapes, providing versatility without increasing the fundamental structural complexity of the article.
2Adaptability or versatility
If the outer cover is made adjustable to fit different bodies, then adaptability improves, but the device complexity increases
Solution Approach 1:
The adjustable outer cover incorporates fastening mechanisms (such as snaps, hooks, or elastic) that serve multiple functions: securing the cover to the body, allowing size adjustment, and maintaining fit during movement. This multi-functionality provides adaptability across different body sizes without requiring multiple separate cover designs, thereby limiting the increase in structural complexity.
Solution Approach 2:
The outer cover is constructed from flexible materials that can be easily shaped and adjusted to different body contours. The flexibility of the material allows for simple adjustment mechanisms (such as elastic bands or soft fasteners) rather than rigid complex structures, enabling adaptability while keeping the added complexity minimal.
3Adaptability or versatility
If the absorbent article is designed as two separate pieces, then adjustability improves, but the risk of separation during use increases
Solution Approach 1:
The absorbent core and backsheet are connected through integrated fastening mechanisms such as adhesive bonds, mechanical interlocks, or overlapping sections with fasteners. These connection features ensure that the two separate pieces remain securely attached during use, preventing separation while still allowing the outer cover to be adjusted for different sizes. The merging of the connection function into the assembly process maintains reliability without compromising adjustability.
Data Source
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AI summary
A diaper outer cover includes a front lateral end (13) and a rear lateral end (19); a first longitudinal edge and a second longitudinal edge; and an adjustment system (400). The adjustment system has an adjustment strip (40) disposed in a leg gasketing system (52) or in a waist feature (50); and multiple engagement points (406). The adjustment system is selected from the group consisting of buckle mechanisms (420), snap mechanisms, lock and key mechanisms (426, 428), tying mechanisms (424), hook and loop mechanisms (405, 407), male and female mechanisms (412, 414) and combinations thereof.