Segmented Hip Belt Adjustment for Multi-Size Backpack Fit
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Solution Overview
Problem
Existing hip belts often lack adequate length adjustment or require multiple sizes to accommodate varying user waist sizes, leading to inefficiencies in fit and comfort.
Innovation Solution
An adjustable hip belt system with a rear belt portion and infinitely adjustable side portions, utilizing hook and loop fasteners and a strap assembly for simultaneous adjustment of circumferential length, allowing for a range of adjustment from 23 to 41 inches without needing multiple sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional fixed-size hip belts are used, then manufacturing is simple, but adaptability to different user waist sizes is poor
Solution Approach 1:
The hip belt is divided into multiple segments: a rear belt portion and two side portions that can be independently adjusted. Each side portion can be positioned at different locations along the rear belt portion, allowing the overall circumference to be customized for different waist sizes while maintaining a relatively simple base structure.
Solution Approach 2:
The hip belt transitions from a fixed structure to a dynamic, adjustable structure. The side portions can be repositioned along the rear belt portion and secured at different locations, enabling the hip belt to adapt to various waist circumferences. This dynamic adjustment capability improves adaptability without requiring multiple different-sized belts.
2Adaptability or versatility
If multiple hip belt sizes are provided, then adaptability to different users is improved, but device complexity and inventory requirements increase
Solution Approach 1:
A single hip belt design serves multiple size requirements through adjustable side portions. The same rear belt portion can accommodate various waist sizes by repositioning the side portions to different locations, making one hip belt design universal for a range of users rather than requiring multiple specialized sizes.
Solution Approach 2:
The effective circumference of the hip belt is changed by adjusting the position of side portions along the rear belt portion. This parameter adjustment allows the same physical hip belt to fit different waist sizes, eliminating the need to manufacture and manage multiple size variants.
3Ease of operation
If fixed-length hip belts are used, then manufacturing precision requirements are low, but ease of operation for fit adjustment is poor
Solution Approach 1:
Multiple attachment locations are pre-established on the rear belt portion during manufacturing. Users can simply move side portions to the appropriate pre-marked locations for adjustment, eliminating the need for complex measurement and adjustment mechanisms while maintaining ease of operation.
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 customizable fit and comfort by allowing users to adjust the hip belt length easily, transferring load effectively from shoulders to hips, and offering a mechanical advantage during adjustment.
Implementation Method 1
the first side portion includes a second part of the first fastener. A second side portion has a second pad, wherein the second side portion is connectable and infinitely adjustable relative to the second side of the rear belt portion within a second adjustment range. The second side portion includes a second part of the second fastener.
Data Source
AI summary
An adjustable hip belt usable with a backpack or a backpack with an adjustable hip belt. The hip belt includes a rear belt portion having a first side and a second side. The first side includes a first part of a first fastener and the second side includes a first part of a second fastener. A first side portion has a first pad and a second side portion has a second pad. Each of the first side portion and the second side portion is connectable to and adjustable relative to a respective one of the first side and the second side of the rear belt portion within an adjustment range. The first side portion includes a second part of the first fastener and the second side portion comprises a second part of the second fastener.