Attachable Disposable Wearing Article With Segmented Standup Gathers
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Solution Overview
Problem
Attachable-type disposable wearing articles tend to poorly fit in the round-waist direction and may bend along inadvertent folding lines, leading to displacement of the reservoir space and potential leakage.
Innovation Solution
The design incorporates waist elastic members, standup gather parts with specific bending parts and areas of varying rigidity, and a waist stretchable region to maintain the shape and position of the reservoir space, ensuring it remains deep and wide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the dorsal section is provided with a waist stretchable region and standup gather parts to raise a reservoir space, then leakage on the back is prevented, but the bending position may be displaced backward to form an inadvertent folding line in the middle of the standup region
Solution Approach 1:
The standup region is divided into multiple segments: the first standup gather part, the second standup gather part, and the third standup gather part. Each segment has specific fixing positions and gathering elastic members that work together to maintain the reservoir space shape. The first standup gather part is fixed at the front edge, the second at the back edge, and the third at the middle, creating a segmented structure that prevents inadvertent folding while maintaining reliability.
Solution Approach 2:
Different regions of the standup region are given different properties through the selective placement of gathering elastic members. The first standup gather part has gathering elastic members at its front edge, the second at its back edge, and the third at its middle position. This local differentiation ensures that each segment contributes specifically to maintaining the reservoir space shape, preventing backward displacement of the bending position.
2Stability of the object's composition
If the standup region is contracted in the front-back direction to maintain reservoir space, then the shape and position are retained, but the structure becomes more complex with multiple gather parts and fixing positions
Solution Approach 1:
The multiple standup gather parts serve multiple functions simultaneously. Each gather part not only contracts the standup region to maintain the reservoir space shape but also provides structural support at specific locations. The first, second, and third standup gather parts collectively perform the functions of shape maintenance, position retention, and prevention of inadvertent folding, reducing the need for additional separate components.
Solution Approach 2:
The standup gather parts are pre-configured with gathering elastic members at specific positions (front edge, back edge, and middle of the standup region) before use. This preliminary arrangement ensures that when the diaper is worn, the reservoir space is automatically maintained in the correct shape and position without requiring additional adjustments or complex mechanisms during use.
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 effectively retains the reservoir space by preventing backward migration of bodily waste and maintaining a secure fit against the wearer's body, even under external forces.
Implementation Method 1
a region containing the waist elastic member is contracted in the width direction together with the waist elastic member, and has a waist stretchable region stretchable in the width direction
Implementation Method 2
at least the free edge area of the standup portion is contracted in the front-back direction together with the gathering elastic member and is stretchable in the front-back direction
Data Source
AI summary
An attachable-type disposable wearing article including waist elastic members fixed to an end flap, standup gather parts located on opposed widthwise sides, a linear first bending part extending in the width direction from a front edge of one of the back laid-down portions to a front edge of the other, and a linear second bending part extending in the width direction and spaced forwardly apart from the first bending part, a first area adjacent backward to the first bending part and a second area between the first and second bending parts, the waist stretchable region is provided at least between the opposed right and left back laid-down portions, and the second bending part has lower rigidity compared to the second area and the third area adjacent forward to the second bending part.