Self Stabilizing Backpack Shoulder Strap Pivot Mechanism
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Solution Overview
Problem
Existing backpack designs lack self-stabilization, particularly against left/right swaying movements, and fail to dynamically adjust to the wearer's shoulder movements, leading to instability and discomfort.
Innovation Solution
A self-stabilizing backpack design featuring a shoulder strap system with an intermediate member that pivots 360 degrees, allowing the bag to pivot around a central connector, and the shoulder straps to pivot independently, maintaining a central axis oriented downwards to keep the bag vertical and stable during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed pivot points are used for shoulder straps, then the backpack structure is simple, but the backpack cannot dynamically adjust to wearer's shoulder movements causing instability
Solution Approach 1:
The patent implements dynamic adjustment capability by allowing the shoulder straps to pivot freely at multiple points (attachment to bag, intermediate member, and wearer's shoulders) rather than using fixed pivot points. This enables the strap system to automatically adapt to the wearer's shoulder movements and maintain optimal positioning during activity.
2Adaptability or versatility
If multiple straps are attached at a central coupler, then the harness can adjust to the wearer's back, but tension from each strap limits the degree of pivoting
Solution Approach 1:
The patent divides the strap system into separate functional components: shoulder straps that pivot independently at the bag attachment point, an intermediate member that pivots separately, and torso straps. This segmentation allows each component to move freely without being constrained by tension from other straps, eliminating the limitation of fixed central coupler designs.
Solution Approach 2:
The intermediate member acts as a mediator between the bag and the shoulder straps. It pivots independently on the bag while the shoulder straps pivot independently on the intermediate member, creating a chain of independent pivot points that maintains adjustment freedom while avoiding the tension constraints of a single central coupler.
3Adaptability or versatility
If the backpack uses a single pivot point suspension system, then the structure is simple, but it only allows adjustment at the waist area and not at the shoulders
Solution Approach 1:
The patent extends the suspension system from a single pivot point at the waist to multiple pivot points distributed across both the shoulder and waist areas. The shoulder straps pivot at the bag and intermediate member, while the waist belt provides additional suspension, creating a multi-dimensional adjustment system that addresses both upper and lower body movements.
Data Source
AI summary
A backpack with a self stabilizing shoulder strap system is disclosed. The backpack includes two shoulder straps, an intermediate member, and a bag. The bag is configured to pivot about a first connector associated with the intermediate member. The shoulder straps are configured to pivot about connectors associated with the intermediate member. The configuration of the shoulder strap system allows for the bag to remain substantially vertical during motions as the shoulders are raised and lowered.