Backpack Hip Belt and Compression Strap Cooperative Adjustment
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Solution Overview
Problem
Backpacks with hip belts and compression straps often require complex and time-consuming adjustments to achieve optimal fit and compression, with multiple straps that can be cumbersome and difficult to manage, especially during outdoor activities.
Innovation Solution
A backpack design featuring cooperatively adjusted hip belt segments and compression strap segments, where a single adjustment strap interconnects both, allowing for concurrent adjustment of pack volume and belt assembly waist perimeter, simplifying the process and reducing the risk of over- or under-tightening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple independent adjustment straps are used for hip belts and compression straps, then the fit and compression can be independently optimized, but the device complexity and ease of operation deteriorate due to the need to adjust multiple straps separately
Solution Approach 1:
The patent combines the hip belt adjustment strap and compression strap adjustment into a single integrated adjustment mechanism. The adjustment strap serves dual functions: when pulled, it simultaneously tightens the hip belt around the user's waist and compresses the load within the backpack, eliminating the need for separate adjustment straps for each function.
Solution Approach 2:
The single adjustment strap is designed to perform multiple functions: it acts as both the hip belt adjustment strap and the compression strap adjustment mechanism. This universal component allows users to adjust both the hip belt fit and load compression through one unified action, improving ease of operation while maintaining independent optimization capability.
2Manufacturing precision
If multiple independent adjustment straps are used, then precise fit and compression can be achieved, but the adjustment time increases due to the iterative process required
Solution Approach 1:
The integrated adjustment mechanism is pre-configured with the adjustment strap connected to both the hip belt and compression strap systems. This preliminary arrangement eliminates the need for iterative adjustments between separate components, as both functions are coupled from the outset and adjust simultaneously in a single action.
3Ease of operation
If compression is adjusted first, then hip belt fit can be optimized, but the process requires revisiting compression adjustment after hip belt adjustment
Solution Approach 1:
By merging the adjustment functions into a single strap system, the patent eliminates the sequential iterative adjustment process. The adjustment strap simultaneously controls both hip belt tension and compression strap tension, allowing users to achieve optimal fit and compression in a single adjustment action without needing to revisit either setting.
Data Source
AI summary
Backpacks with cooperatively adjusted hip belt segments and compression strap segments. A backpack includes a pack body, a shoulder strap, and a belt assembly. The pack body includes a back panel and an exterior panel. The belt assembly includes a compression strap segment, a hip belt segment, an adjustment strap, and a releasable fastener. The backpack includes a belt assembly waist loop with a belt assembly waist perimeter. Each adjustment strap is configured to selectively adjust each of the pack volume and the belt assembly waist perimeter. The belt assembly is configured such that, responsive to the user applying a tension force to the adjustment strap, each of a pack volume and the belt assembly waist perimeter decreases by a respective degree that depends upon a ratio of the force required to decrease the pack volume to the force required to decrease the belt assembly waist perimeter.