Backpack Frame Flex Segmentation for Heavy Load Support
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Solution Overview
Problem
Conventional backpacks have limitations in carrying loads of substantial weight and size, often failing to adequately support heavier loads due to inadequate frame support, leading to a need for a lightweight, ergonomically improved system.
Innovation Solution
A backpack system featuring a storage section, upper and lower harnesses, and a backpack frame with a flex portion that includes multiple slots and recesses for one-way flexing, along with an inversely shaped ergonomic hip belt to distribute weight and prevent sliding, allowing for the carrying of loads significantly heavier than the backpack itself.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional backpack design is used, then the structure is simple and lightweight, but it cannot adequately support loads of substantial weight
Solution Approach 1:
The backpack frame is segmented into multiple components including a rigid upper frame, a flexible lower frame with flex portions, and modular harness sections. This segmentation allows each part to be optimized for its specific function while maintaining overall structural integrity and load-bearing capacity.
Solution Approach 2:
The backpack employs composite construction combining rigid materials for the upper frame with flexible materials for the lower frame. This composite approach enables the structure to provide both strength for heavy loads and flexibility for comfort and movement.
2Strength
If a rigid frame is used to support heavy loads, then load-bearing capacity improves, but flexibility and comfort deteriorate
Solution Approach 1:
The frame is divided into rigid and flexible segments, with the rigid upper portion providing load support and the flexible lower portion providing comfort and adaptability to body movements.
Solution Approach 2:
The lower frame incorporates flex portions that can dynamically adapt to the user's body movements and contours, providing both support and comfort during activity while maintaining overall structural integrity.
3Ease of operation
If the backpack frame is made flexible for comfort, then ease of operation improves, but load-bearing capacity deteriorates
Solution Approach 1:
The frame is divided into rigid and flexible segments, with the rigid upper portion providing load support and the flexible lower portion providing comfort and adaptability to body movements.
Solution Approach 2:
Different portions of the frame have different mechanical properties - the upper frame is rigid for strength while the lower frame is flexible for comfort. This local differentiation of material properties optimizes both load-bearing and comfort simultaneously.
4Ease of operation
If conventional shoulder straps are used, then the design is simple, but weight distribution is inadequate causing sliding and discomfort
Solution Approach 1:
The harness system transitions from conventional two-dimensional shoulder straps to a three-dimensional lower harness with hip belt and leg straps that wrap around the body, utilizing additional spatial dimensions to distribute weight more effectively across multiple contact points.
Solution Approach 2:
The lower harness is segmented into multiple independent strap components (hip belt, leg straps, waist straps) that can be independently adjusted and positioned to optimize weight distribution across different body regions.
Data Source
AI summary
The present disclosure provides a lightweight, ergonomically improved backpack system comprising a storage section, an upper harness, a lower harness and an ergonomic backpack frame, that may be configured to facilitate the carrying of loads that may substantially exceed the weight of the ergonomic backpack frame. The ergonomic backpack frame may include a flex portion that includes at least one flex region. The flex portion of the ergonomic backpack frame may allow the backpack frame to substantially conform to a user's back while walking during utilization of the backpack system.