Backpack Suspension Hub With Pivoting Rods
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Solution Overview
Problem
Existing backpack frames lack torsional flexibility, causing user discomfort and fatigue due to mismatched motion during hiking or mountaineering, as they do not accommodate the dynamic movements of the body.
Innovation Solution
A backpack suspension system with a frame featuring an upper and lower portion connected by a pivoting hub, allowing the rods to rotate within the hub and providing multiple axes of rotation, mimicking the curvature of the spine, to enable dynamic motion and reduce strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the backpack frame is made rigid to withstand weight and external forces, then strength and stability are improved, but torsional flexibility and adaptability to body motion deteriorate
Solution Approach 1:
The frame is divided into multiple segments (upper portion, lower portion, and intermediate rods) connected by hubs that can rotate and pivot. This segmentation allows each segment to move independently, providing torsional flexibility while maintaining overall structural strength. The hub mechanism enables the frame to adapt to body motions during hiking without compromising the strength needed to carry loads.
2Reliability
If the backpack frame is made rigid to maintain structural integrity, then reliability is improved, but ease of operation and comfort during dynamic movement deteriorate
Solution Approach 1:
The frame incorporates dynamic elements including rotating rods within hubs and pivoting hub members that allow the structure to move and adapt during hiking. This dynamic design enables the frame to follow natural body motions, improving comfort and ease of operation while maintaining structural integrity through the robust hub and rod connections that preserve load-bearing capability.
3Device complexity
If the backpack frame uses simple twisting or backward/forward motion mechanisms, then device complexity is reduced, but adaptability to dynamic body motion deteriorates
Solution Approach 1:
The hub mechanism merges multiple degrees of freedom (rotation of rods within the hub, pivoting of hub members around horizontal and longitudinal axes) into a single integrated component. This combination provides complex adaptability to multi-directional body motions while keeping the overall device complexity manageable through the use of a unified hub structure rather than multiple separate mechanisms.
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
The system reduces fatigue and strain by allowing the backpack to move naturally with the user, providing flexibility and comfort during dynamic movements.
Implementation Method 1
the hub is adapted to pivot around a horizontal axis
Implementation Method 2
The upper and lower portion comprise a plurality of rods adapted to rotate within the hub
Implementation Method 3
The pin is preferably slip fitted to provide rotation of the hub around the pin
Data Source
AI summary
A backpack suspension system is provided that provides a more natural feel as it is able to match a hiker's twisting and bending motions. A backpack suspension system comprises a frame having an upper and a lower portion, and a hub connecting the upper and lower portion. The upper and lower portion comprise a plurality of rods adapted to rotate within the hub. The hub is adapted to pivot about a horizontal axis. In certain embodiments the frame is substantially X shaped and in certain embodiments the hub is substantially X shaped.