Adjustable Backpack Straps and Hip Belt for Load Stability
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Solution Overview
Problem
Existing backpacks often fail to accommodate the diverse anatomies of individuals, leading to discomfort and instability in load distribution, particularly when carrying substantial loads over long distances.
Innovation Solution
The backpacks feature adjustable shoulder straps and hip belts that can be customized to fit different shoulder and hip anatomies, with mechanisms like hook and loop fasteners, snap fasteners, and buckles allowing for adjustable lengths and angles to ensure proper positioning and load distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed-length shoulder straps and hip belts are used, then the backpack structure is simple, but it cannot accommodate diverse anatomies leading to discomfort and instability
Solution Approach 1:
The shoulder straps and hip belts are designed with adjustable mechanisms that allow dynamic reconfiguration. The shoulder straps can be adjusted in length by moving connection points along the frame, and the hip belts can be adjusted in both length and angle. This dynamic adjustability enables the backpack to adapt to diverse anatomies while maintaining a relatively simple overall structure.
Solution Approach 2:
The backpack is divided into adjustable segments including shoulder straps with multiple connection points, a frame with adjustable segments, and hip belts with adjustable angles and lengths. Each segment can be independently adjusted to fit different body types, resolving the contradiction between adaptability and structural simplicity.
2Ease of operation
If adjustable shoulder straps and hip belts are provided, then comfort and load distribution are improved, but the device complexity increases
Solution Approach 1:
The adjustable mechanisms serve multiple functions: shoulder straps adjust for both length and positioning, the frame adjusts for both shape and strap positioning, and hip belts adjust for both angle and length. This multi-functionality improves comfort and load distribution while minimizing the addition of separate components, thereby controlling device complexity.
3Reliability
If customized configurations are provided for different anatomies, then load transfer and comfort are optimized, but manufacturing complexity increases
Solution Approach 1:
Instead of manufacturing different backpack models for different anatomies, the invention allows users to adjust key parameters (strap length, frame shape, hip belt angle) after purchase. This approach maintains high load transfer efficiency through proper customization while keeping manufacturing simple and standardized.
4Adaptability or versatility
If multiple adjustment mechanisms are used, then adaptability to different body types is improved, but the ease of manufacture decreases
Solution Approach 1:
The adjustment mechanisms are designed to be simple and intuitive, allowing users to easily modify the backpack configuration. The shoulder straps connect at multiple predetermined points on the frame, the frame itself can be adjusted for shape, and the hip belts can be repositioned in angle and length. These dynamic adjustments provide high adaptability while maintaining straightforward assembly processes using standard fasteners and connection mechanisms.
Data Source
AI summary
A backpack may include a pack portion having a backside having a first slot and a frame having a second slot, wherein a flexible end portion of the shoulder strap passes through the first slot in the second slot and is adjustably connected to the frame to adjust a length of the flexible end portion of the shoulder strap that extends beyond the first slot. A backpack may include a hip belt having a rear portion connected to a frame, wherein the rear portion has left and right end portions that are repositionable at different angles relative to one another.