Double-Layer Bra Cup Structure for Hidden Lift-Up Support
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Solution Overview
Problem
Conventional women's undergarments with lift-up pieces for breast shaping often have visible linear level differences on outerwear, affecting appearance, and the lift-up pieces can cause sliding or slipping issues due to their tensile strength and elasticity.
Innovation Solution
A woman's undergarment with a double-layered brassiere cup structure, featuring an inner and outer cup with a lift-up piece inserted between them, where the lift-up piece is hidden within the outer cup, and a slit-like opening allows the insertion portion to move smoothly, preventing visible level differences and enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lift-up pieces are provided on the outer surface of the brassiere cup to push breasts upwardly and inwardly, then the breast-shaping function is improved, but visible linear level differences appear on outerwear affecting appearance
Solution Approach 1:
The lift-up piece is inserted through an opening in the corner region of the brassiere cup and disposed inside the cup, nested within the cup structure rather than attached to the outer surface. This nesting approach maintains the breast-lifting function while hiding the lift-up piece from external view, preventing visible level differences on outerwear.
Solution Approach 2:
The lift-up piece is positioned in the internal dimension (inside the cup) rather than the external dimension (outer surface). By moving the functional element to another spatial dimension, the invention preserves the lifting effect while eliminating the aesthetic defect of visible seams on outer clothing.
2Shape
If the lift-up piece is inserted through an opening in the corner region of the brassiere cup, then the appearance is improved by hiding the lift-up piece, but the insertion portion may cause sliding or slipping issues due to tensile strength and elasticity
Solution Approach 1:
The opening is specifically located in the corner region of the brassiere cup, a localized area that does not compromise the overall structural integrity. This local modification allows the lift-up piece to be hidden while maintaining the cup's stability and support function during body movements.
Solution Approach 2:
The opening acts as an intermediary structure that allows the lift-up piece to be inserted and positioned inside the cup while maintaining secure attachment. The opening region provides a transition zone that accommodates the lift-up piece without causing sliding or slipping, balancing appearance and stability.
3Reliability
If power net fabric is used for the lift-up piece to provide tensile strength and elasticity, then the breast-lifting effect is improved, but the thickness of the lift-up piece becomes visible on outerwear
Solution Approach 1:
The relatively thick power net fabric lift-up piece is nested inside the brassiere cup, where its thickness does not affect the external appearance. By placing the bulky functional element inside the cup structure, the invention maintains both the lifting effect and a smooth external surface.
Data Source
Figure 1(a)~1(b)
Figure 2(a)~2(c)
Figure 3(a)~3(b)
AI summary
A woman's undergarment A includes a pair of left and right brassiere cups 1 each having a lower edge 2, a side edge 4, and an upper edge 3, cover pieces 20 each disposed to cover an outer surface of the brassiere cup 1, straps 70, and lift-up pieces 40. The brassiere cup 1 has a double structure including an inner cup 1i and an outer cup 1o, and has an opening 6 in a corner region 1o9 including a portion where an upper edge 1o3 and a side edge 1o4 of the outer cup 1o meet. The lift-up piece 40 is disposed between the inner cup 1i and the outer cup 1o, and includes an insertion portion 46 having a strip shape and inserted through the opening 6 in the corner region 1o9 of the outer cup 1o from an inner surface to an outer surface.