Pet Diaper Asymmetric Marking for Waist Fit
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Solution Overview
Problem
Existing disposable diapers for pets often fail to conform to the varying waist shape of pets, leading to gaps and poor fitting quality due to inconsistent waist sizes in the front-back direction.
Innovation Solution
The design includes a waistline direction aligned with the pet's waist, a cross direction orthogonal to it, and a binding portion with visible mark portions on the backsheet to guide proper placement, allowing the user to adjust the diaper's size to match the pet's waist shape, with options for head-side and crotch-side mark positioning to accommodate different size variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the disposable diaper is placed equally over the entire range of the front-back direction, then the diaper covers the entire waist area, but gaps are produced between the waist of the pet and the disposable diaper due to varying waist size
Solution Approach 1:
The patent applies local quality by making the diaper length in the front-back direction longer than in the left-right direction, creating an asymmetric shape that locally adapts to the specific waist shape of pets. This asymmetric dimensional design allows the diaper to conform better to the varying waist circumference from head to crotch without creating gaps, while maintaining simplicity in the overall structure.
2Adaptability or versatility
If the diaper is made with fixed dimensions, then the manufacturing process is simple, but the diaper cannot conform to the varying waist shape of different pets
Solution Approach 1:
The patent applies dynamics by designing a diaper with asymmetric dimensions where the front-back length is deliberately made longer than the left-right width. This dynamic dimensional ratio allows the diaper to adapt flexibly to the varying waist shapes of different pets without requiring complex adjustable mechanisms. The inherent asymmetric shape provides adaptability while maintaining structural simplicity.
3Manufacturing precision
If the diaper uses symmetric dimensions, then the manufacturing process is straightforward, but gaps are produced due to inconsistent waist sizes in the front-back direction
Solution Approach 1:
The patent applies asymmetry by deliberately designing the diaper with non-symmetric dimensions, specifically making the front-back length greater than the left-right width. This asymmetric design directly addresses the problem of gaps caused by varying waist sizes, improving placement accuracy and fitting quality while remaining relatively simple to manufacture compared to complex adjustable designs.
Data Source
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AI summary
A disposable diaper for pet includes a waistline direction (W) disposed along a waistline direction of a pet, a cross direction (Z) orthogonal to the waistline direction, a main body portion (2), and a binding portion (40) that binds a face of a backsheet side of the main body portion and a face of a topsheet side of the main body portion. The main body portion (2) has a topsheet (10), a backsheet (20), and an absorbent core (30) arranged between the topsheet and the backsheet. The main body portion (2) includes: a main-body first end (2E1) which forms one end in the waistline direction; a main-body second end (2E2) which forms the other end in the waistline direction, and arranged an outside of the disposable diaper in the wearing state; a main-body third end (2E3) which forms one end in the cross direction, and arranged on a head-side of the pet in the wearing state; a main-body fourth end (2E4) which forms the other end in the cross direction, and arranged on a crotch-side of the pet in the wearing state; and a mark portion (50) being designed visible from a side of the backsheet of the disposable diaper for pet, and to indicate a position of the main-body second end in the wearing state. The mark portion (50) includes: a head-side mark portion (53) residing on a side of the main-body third end of a center in the cross direction of the main body portion; and a crotch-side mark portion (54) residing on a side of the main-body fourth end of the center in the cross direction of the main body. The head-side mark portion being positioned inside, in the waistline direction, of the crotch-side mark portion.