Hooked Absorbent Pad Layout for Easy One-Hand Positioning
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Solution Overview
Problem
Existing absorbent pads for adult diapers and underwear are difficult to attach and position correctly, often leading to displacement, bending, and misalignment, especially for elderly and disabled individuals, due to inadequate hooking mechanisms and lack of rigidity.
Innovation Solution
The absorbent pad features a longitudinal design with a liquid-retaining absorber, a liquid-permeable top sheet, a liquid-impermeable bottom sheet, and elastic rising sheets with hook members that are easily attachable and detachable, allowing for secure attachment and easy replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If horizontally long belt-like hooking means are provided at both ends in the front-back direction, then the absorbent pad can be attached to the wearing article, but the region without absorbent core has low rigidity and is easily bent during manufacturing and packaging
Solution Approach 1:
The hooking means is designed with non-uniform width along its length, creating local quality variations. The wider sections provide enhanced rigidity and structural stability in regions prone to bending during manufacturing and packaging, while the narrower sections reduce material usage and allow for flexible attachment to the wearing article.
2Reliability
If horizontally long belt-like hooking means are provided at both ends, then attachment is possible, but alignment of the entire hooking means is difficult and misalignment occurs
Solution Approach 1:
The absorbent pad is pre-folded in half along the front-back center line before attachment. This preliminary folding action brings the two hooking means into predetermined alignment, eliminating the need for complex alignment procedures and ensuring accurate positioning on the wearing article.
3Ease of operation
If the absorbent pad is peeled off in the front-back direction to avoid twisting, then twisting is prevented, but strong force is required and it is difficult to operate with one hand
Solution Approach 1:
The hooking means is divided into multiple discrete hooks distributed along the front-back direction rather than a continuous belt. This segmentation allows the absorbent pad to be removed by peeling off individual hooks sequentially, reducing the force required at any one time and enabling one-handed operation.
4Ease of operation
If the absorbent pad is folded in half at the front-back center line, then hook members are arranged outside for easy attachment, but the rising sheets must be fixed with adhesive near both ends
Solution Approach 1:
The rising sheets serve dual functions: they provide the elastic rise function and simultaneously act as the substrate for attaching the hook members. By merging these functions into a single component, the overall structural complexity is reduced while maintaining ease of attachment.
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 design enables easy and secure attachment to wearing articles with minimal force, reducing the risk of misalignment and leakage, and is suitable for one-handed operation by elderly or disabled users.
Implementation Method 1
left and right rising sheets provided with rising portions that are provided with an elastic body to expand and contract in the front-back direction and rise along left and right ends of the top sheet
Implementation Method 2
the left and right rising sheets being fixed with an adhesive near both ends of the left-right direction and near both ends of the front-back direction of the top sheet except for the rising portions
Implementation Method 3
the hook member including a collection of hook pieces that are detachably hooked on a wearing article
Implementation Method 4
a liquid-permeable top sheet covering an upper surface of the absorber
Implementation Method 5
a liquid-impermeable bottom sheet covering a lower surface of the absorber
Implementation Method 6
a liquid-retaining absorber with a longitudinal direction as the front-back direction
Data Source
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AI summary
Provided is an absorbent pad that is easy to attach to and position on a wearing article. An absorbent pad 1 with a longitudinal direction as a front-back direction of a wearer includes: a hook member 8 having a length in the front-back direction of 20 mm or more and 50 mm or less and a width in the left-right direction of 10 mm or more and 20 mm or less, the hook member 8 comprising a collection of hook pieces that are detachably hooked on a wearing article; and a hook member fixing region having a length in the front-back direction of 20 mm or more and 50 mm or less and a width in the left-right direction of more than 30 mm and less than 70 mm, and in which a plurality of the hook members 8 are fixed parallel at intervals of less than 50 mm in the left-right direction of the absorbent pad 1; the hook member fixing region is a region obtained by projecting each center region in the left-right direction of both a front end portion and a back end portion of an absorber 2,3 onto a wear-facing surface 5d.