Bra Rear Buckle Structure for Bidirectional Stretch and Skin Comfort
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Solution Overview
Problem
Existing bra rear buckles have stitches that affect the wearing experience and cause skin damage, lack elasticity in both length and width directions, and are prone to deformation, leading to poor stability and support.
Innovation Solution
A bra rear buckle design featuring an elastic baseband with double-layer double-pull cloths and buckle rings, allowing simultaneous stretching and contraction in both directions, with seams hidden on the inner side to enhance comfort and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If buckle rings are sewn directly on the baseband, then the connection is simple and easy to manufacture, but stitches appear on the back surface causing skin discomfort and damage
Solution Approach 1:
The patent introduces a third dimension by adding a folded cloth layer between the baseband and the buckle rings. This additional layer redirects the stitching to occur on the folded cloth surface rather than directly on the baseband, eliminating visible stitches and skin contact with needle holes while maintaining manufacturing simplicity.
2Device complexity
If traditional non-elastic buckles are used, then the structure is simple, but the buckles cannot stretch and contract simultaneously in length and width directions, leading to deformation and poor stability
Solution Approach 1:
The patent changes the physical parameters of the baseband by incorporating elastic fibers (spandex) into the fabric composition and adding folded cloth layers that provide elastic recovery. This enables the baseband to simultaneously stretch and contract in both length and width directions, preventing deformation and improving stability while maintaining structural simplicity.
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 improves wearing experience by eliminating skin discomfort, maintaining smoothness, and ensuring high-grade appearance while providing enhanced elasticity and stability, preventing deformation and strap slippage.
Implementation Method 1
the elastic lining is capable of stretching and contracting along a length direction and a width direction simultaneously
Data Source
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AI summary
A bra rear buckle capable of effectively improving wearing experience and stability is provided and includes an elastic baseband (7), double-layer double-pull cloths (2), and buckle rings (1). The elastic baseband includes an elastic lining (4) and a single-layer double-pull cloth (3), the single-layer double-pull cloth is sewn on the elastic lining. The elastic lining is capable of stretching and contracting along a length direction and a width direction simultaneously, and the single-layer double-pull cloth is wrapped around an outer peripheral wall of the elastic lining. The double-layer double-pull cloth positioned at a rightmost side of the elastic baseband reversely wraps the elastic baseband from top to bottom.