Bra Wire Sheath Sliding Core Prevents Flattening
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Solution Overview
Problem
Existing sheaths for bra wire rings can become flattened during sewing, leading to resistance issues when inserting the wire ring, causing wrinkles or holes on the surface and tightness, which affects the bra's beauty and comfort.
Innovation Solution
A hollow sheath body made of cloth with a core wire that slides relative to the sheath, preventing flattening during sewing and allowing easy insertion of the wire ring without causing surface damage or tightness, by forming a passage when the core wire is pulled out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the sheath is sewn using a sewing machine, then the sheath can be efficiently manufactured and integrated with the bra, but the pressing foot of the sewing machine flattens the sheath, causing insertion resistance and potential damage
Solution Approach 1:
The hollow part is pre-formed in the sheath body before the wire ring insertion process. This preliminary structural preparation ensures that the sheath maintains its three-dimensional shape during sewing operations, preventing flattening and ensuring smooth wire ring insertion later without requiring rework or adjustment.
Solution Approach 2:
The hollow part acts as an intermediary structural element between the wire ring and the sheath material. By maintaining a three-dimensional cavity, it provides a buffer zone that prevents direct compression of the wire ring during sewing, reducing insertion resistance and preventing surface damage to the sheath.
2Shape
If the wire ring is inserted into a flattened sheath, then the sheath becomes tight and may form wrinkles or holes, but inserting into a three-dimensional sheath maintains fluffiness and comfort
Solution Approach 1:
The hollow part is pre-formed in the sheath body before the wire ring insertion process. This preliminary structural preparation ensures that the sheath maintains its three-dimensional shape during sewing operations, preventing flattening and ensuring smooth wire ring insertion later without requiring rework or adjustment.
Solution Approach 2:
The hollow part serves as a pre-established cushioning structure that protects the wire ring from direct contact with the sheath's outer surface. This beforehand cushioning prevents the formation of wrinkles and holes during wire ring insertion, maintaining the sheath's fluffiness and preventing skin discomfort for the wearer.
Data Source
AI summary
The invention discloses a sheath for bra wire ring. It includes a hollow sheath body made of cloth, and there is a hollow part for holding the wire ring to be inserted in the hollow sheath body; it also comprises a core wire inserted in the hollow part, and the core wire slides relative to the hollow sheath body. Such design solves the problem of resistance when the wire rings are inserted into a flat bra wire ring sheath, resulting in that in the process of manufacturing bra, the phenomena of wrinkles and holes left on the surface of the sheath and the tightness of the sheath caused by inserting wire rings can be obviously improved, and making the product more beautiful and simultaneously enhancing the comfort of wearing the bra for females.