Bra Pad Insert Perimeter Locking Against Shifting and Rotation
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Solution Overview
Problem
Traditional pad inserts for bras tend to shift and rotate within the pocket space due to mismatched perimeter shapes, leading to instability during wear and wash.
Innovation Solution
The pad insert is designed with a perimeter shape that includes three or more concave edges and one or more linear edges, aligning with the pocket space's shape to securely lock into place, preventing shifting and rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional triangular, circular, or elliptical pad inserts are used, then the pad insert can be easily manufactured and inserted, but the pad insert shifts and rotates within the pocket space during wear and wash
Solution Approach 1:
The pad insert uses an asymmetric perimeter shape with alternating concave and linear edges that complements the corresponding asymmetric pocket space shape. This asymmetric design creates a unique fit that prevents rotation and shifting, as the pad insert can only be properly positioned when its concave edges align with the pocket space's corresponding edges, resolving the stability issue while maintaining manufacturing feasibility.
2Reliability
If the pad insert perimeter shape differs from the pocket space perimeter shape, then the pad insert can be universally designed for different bras, but the pad insert fails to sit securely and shifts during wear
Solution Approach 1:
The pad insert design applies local quality by creating specific concave and linear edge features at particular locations around the perimeter. These localized geometric features are designed to match corresponding features in the pocket space, creating secure engagement points that prevent shifting while maintaining overall compatibility with standardized bra constructions.
3Reliability
If the pad insert is made with concave edges matching the pocket space, then the pad insert is locked into place preventing shifting, but the manufacturing precision requirements increase
Solution Approach 1:
The perimeter shape is segmented into distinct concave and linear edge portions, each serving a specific functional role. This segmentation allows the design to achieve secure locking through the combination of features rather than requiring perfect precision across the entire perimeter. The concave edges provide the primary locking mechanism while the linear edges provide complementary engagement, distributing the precision requirements across multiple discrete features.
Data Source
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Figure 5~6B
AI summary
Aspects herein are directed to a pad insert configured to be removably positioned within a pocket space formed in a breast covering portion of a support garment. The pad insert has a perimeter shape that includes one or more concave edges, and one or more linear edges. The pocket space of the breast covering portion has a perimeter shape that is substantially the same as the perimeter shape of the pad insert. Thus, when the pad insert is positioned within the pocket space the concave edges of the pad insert align with concave edges of the pocket space, and the linear edges of the pad insert align with linear edges of the pocket space. The result of the configuration described is that the pad insert is "locked" into place within the pocket space which prevents the pad insert from shifting and/or rotating during wash and wear.