Adjustable Contour Waist System for Garments
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Solution Overview
Problem
Existing adjustable waist systems for garments cause fabric bunching when adjusted, leading to discomfort, especially when wearing multiple layers or carrying heavy loads.
Innovation Solution
An adjustable contour waist system with a waistband and fly area featuring a movable hook-and-loop fastener system, where the hook fastener strip is sewn onto the zipper and the loop fastener section is on the overlying fabric, allowing the waistband to be tightened or loosened without fabric bunching by sliding the buckle parts along the webbing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hook-and-loop fastener strips are sewn to the garment and material flap to provide waistband adjustment, then the waistband can be adjusted to different sizes, but the material will bunch when adjusted
Solution Approach 1:
The patent applies the Dynamics principle by making the hook-and-loop fastener strips movable rather than fixed. The strips can slide along the material flap and waistband, allowing continuous adjustment of the waistband size without creating fabric bunching. This dynamic positioning capability enables the fastener to adapt to different waist sizes while maintaining smooth fabric distribution.
2Adaptability or versatility
If a separate piece is attached to an existing garment to adapt the waist size, then the garment can be adjusted for different waist sizes, but it requires additional separate components
Solution Approach 1:
The patent applies the Merging principle by integrating the hook-and-loop fastener strips directly into the garment structure. The strips are attached to the waistband and material flap as part of the original garment construction, eliminating the need for separate adjustment pieces or accessories. This integration maintains waist size adaptability while reducing the number of separate components.
3Manufacturing precision
If the waistband is tightened to provide an exact fit, then the fit precision is improved, but fabric bunching occurs causing discomfort
Solution Approach 1:
The patent applies the Dynamics principle by enabling the hook-and-loop fastener strips to slide and reposition dynamically. When the waistband is tightened to provide an exact fit, the movable strips can adjust their position to distribute the tension evenly, preventing fabric bunching and discomfort while maintaining precise fit control.
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
Provides an exact fit without fabric bunching, ensuring comfort and proper fit with or without additional layers, reducing irritation from backpack hip belts during heavy loads.
Implementation Method 1
the fly area further comprises a hook-and-loop fastener consisting of a strip of hook fastener material and a section of loop fastener material
Data Source
AI summary
An adjustable contour waist system in which a garment has a waistband and a fly area, first and second belt loops, and a piece of webbing that passes through the second belt loop. The fly area has a zipper that is made up of two parts, and the second part of the zipper is only attached to the garment at a joinder seam. This same joinder seam joins the overlying and underlying fabrics of the fly area. A strip of hook fastener material is sewn to the second part of the zipper and also joined to the garment at the joinder seam. The joinder seam is the only place at which the second part of the zipper and the strip of hook fastener material are attached to the garment. The fly area also has a section of loop fastener material on the underside of the overlying fabric.