Backpack Stability Straps for Secure Positioning
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Solution Overview
Problem
Existing backpacks for sports applications, such as downhill biking, do not allow for optimal and secure adjustment of their position on the wearer's back, leading to potential movement and reduced performance due to forces from gravity and impacts.
Innovation Solution
The backpack features two stability straps with different anchorage points, one near the thorax and one near the waist, and adjustable coupling straps to maintain a secure position, preventing unwanted movement and allowing for comfortable fit adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional single-strap or simple shoulder strap systems are used, then the backpack structure remains simple, but the backpack cannot remain securely positioned during high-impact sports activities
Solution Approach 1:
The shoulder strap system is segmented into multiple independent straps (first shoulder strap, second shoulder strap, first stability strap, second stability strap) instead of using a single integrated strap. This segmentation allows each strap to perform a specific function (cushioning vs. stability) and enables independent adjustment of each strap, resolving the contradiction by providing secure positioning through multiple specialized components rather than one complex integrated system.
Solution Approach 2:
The stability straps are designed with adjustable lengths and multiple attachment points on both the shoulder straps and backpack body. This dynamic adjustability allows the user to optimize the strap configuration for different body types and activity levels, enabling secure positioning during high-impact sports while maintaining the ability to simplify or modify the system for less demanding uses.
2Stability of the object's composition
If multiple stability straps with different anchorage points are added, then the backpack positioning stability improves, but the device complexity increases
Solution Approach 1:
The stability straps serve multiple functions simultaneously: they connect the shoulder straps to the backpack body, provide adjustable tensioning, distribute load across multiple anchorages, and prevent unwanted movement in multiple directions. This multi-functionality reduces the need for separate components for each function, thereby improving stability without proportionally increasing overall system complexity.
Solution Approach 2:
The stability straps are arranged to connect anchorages at different positions and orientations on the backpack body and shoulder straps. By utilizing three-dimensional spatial arrangement of anchorages (different heights, distances from center line), the system achieves stable positioning through geometric distribution rather than through excessive numbers of straps, effectively using spatial dimensionality to reduce component count.
Data Source
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AI summary
The present invention relates to a backpack, in particular to a backpack for biking. In one embodiment, the backpack (100) comprises a main body (105), at least one cushioning shoulder strap (110) and at least two stability straps (120) individually connecting a distal part (211) of the at least one cushioning shoulder strap (110) to the main body (105). In another embodiment, the backpack (200) comprises a main body (205), at least one cushioning shoulder strap (210) and at least two coupling straps (230) individually connecting a proximal part (211) of the at least one cushioning shoulder strap (210) to the main body (205). The at least two coupling straps (230) are adapted to adjust the position of the proximal part (212) of the at least one cushioning shoulder strap (210).