Pet Absorbent Core Extension for Urine Leakage
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Solution Overview
Problem
Disposable absorbent articles for pets, especially males with urethral openings forward of the hind legs, often fail to cover the urinary organ effectively due to stiffness interfering with the hind legs, leading to urine leakage.
Innovation Solution
A rectangular absorbent article with a belt-like core and extension portions, elastic members, and position marks that can be wrapped around a pet's waist, ensuring the core covers the urinary organ without interfering with the hind legs, and includes pocket portions for flexibility and improved fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a belt-like absorbent article with a rectangular absorbent core is put on a male pet to cover the sex organ entirely, then the urinary organ is covered effectively, but the stiff absorbent core interferes with the hind legs of the pet
Solution Approach 1:
The absorbent core is divided into a main body portion and a rearward extension portion. The main body provides coverage of the urinary organ while the extension portion reaches backward to cover the base of the sex organ without interfering with the hind legs. This segmentation allows different portions of the absorbent core to serve different functions spatially.
Solution Approach 2:
The absorbent core extends in the longitudinal direction (from front to back of the pet's body) beyond the typical rectangular shape. This extension in the longitudinal dimension allows the absorbent core to reach the base of the sex organ while maintaining clearance from the hind legs, solving the coverage problem without the interference problem.
2Strength
If the absorbent core is made high in stiffness to maintain its shape, then the structural integrity is improved, but the absorbent core cannot appropriately cover the base of the urinary organ when wrapped around the pet's waist
Solution Approach 1:
The absorbent article incorporates elastic members that allow the stiff absorbent core to dynamically adjust and flex when wrapped around the pet's waist. This dynamic capability enables the absorbent core to conform to the pet's body contours and reach the base of the urinary organ while maintaining its structural integrity during normal use.
Solution Approach 2:
The absorbent core's effective stiffness is changed by introducing elastic members that modify its mechanical properties. The elastic members allow the absorbent core to become more compliant in specific directions (particularly around the hind legs and base of the sex organ) while maintaining sufficient stiffness in other directions to preserve its overall shape and function.
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 absorbent article effectively covers the entire urinary organ of pets, preventing urine leakage and ensuring a comfortable fit by offsetting the core and using elastic members for flexibility, while position marks aid in proper placement.
Implementation Method 1
an elastic member (61) attached to a vicinity of an inner edge of the pair of side sheets
Implementation Method 2
an absorbent core (4) disposed between the top surface layer (2) and the back surface layer (3)
Data Source
AI summary
An absorbent article for pet includes: a liquid permeable top surface layer, a liquid impermeable back surface layer, and an absorbent core disposed between the top surface layer and the back surface layer; the absorbent article for pet being configured to be in a belt-like shape and to be fit wrapped around a waist of a pet, in which the absorbent core includes: a belt-like absorbent core main body that extends from the first end portion side to the second end portion side in the longitudinal direction LD of the absorbent article for pet; and a first extension portion that extends outwards in a width direction from a first side edge in a central portion in the longitudinal direction of the absorbent core main body.