Backpack Pop-Up Frame with Adjustable Sling for Cargo
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Solution Overview
Problem
Backpacks designed for moderate to large loads lack flexibility to efficiently carry heavy, oversized, or awkwardly shaped objects, particularly in challenging terrain, where users need to balance load distribution and adaptability.
Innovation Solution
An expandable backpack system with an external frame, adjustable support poles, and a sling/shelf that allows the pack bag to be secured closer to the user's back, enabling the frame to extend for increased height and accommodate large or awkwardly shaped items by adjusting the distance between the frame and the pack bag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the backpack is designed with a fixed compact structure, then it is easy to carry and has a small profile, but it cannot accommodate heavy, oversized or awkwardly shaped objects
Solution Approach 1:
The patent implements a dynamic frame structure where vertical frame members can transition between retracted and extended positions. The frame members include telescopic sections with locking mechanisms that allow the backpack to adapt its height and volume based on cargo requirements, transforming from a compact daypack configuration to an expanded configuration capable of carrying heavy, oversized objects
Solution Approach 2:
The frame members are divided into multiple telescopic sections that can be independently extended or retracted. Each section includes locking mechanisms that secure the frame at desired lengths, allowing granular adjustment of the backpack's dimensions to match specific cargo requirements while maintaining structural integrity
2Quantity of substance
If the backpack frame is extended to carry large objects, then cargo capacity increases, but the pack weight and profile increase
Solution Approach 1:
The backpack employs a dynamic frame system that allows users to extend vertical frame members only when carrying large or heavy objects. The telescopic sections with locking mechanisms enable the frame to maintain an extended position during transport of bulky cargo, then retract to a compact configuration when such cargo is not present, thereby minimizing unnecessary weight and profile
3Volume of moving object
If the pack bag is positioned away from the user's back, then space is created for cargo, but stability and closeness to center of gravity are reduced
Solution Approach 1:
The patent utilizes the vertical dimension by extending the frame members upward to create cargo space between the pack bag and the extended frame, rather than increasing horizontal distance from the user's back. This vertical expansion maintains the pack's closeness to the user's center of gravity and preserves stability while providing additional capacity for oversized objects
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 provides a stable and flexible means to carry heavy, oversized, or awkwardly shaped objects close to the user's center of gravity, transitioning from a compact 'daypack' mode to an expanded mode for increased cargo capacity, enhancing usability in varied terrains and applications.
Implementation Method 1
The relative position of the first piece and the second piece can be fixed using a spring-loaded pin, button, or other known connection device.
Data Source
AI summary
A backpack system is provided including an external frame, and a separate pack bag. The external frame may include at least one adjustable pole member, wherein the at least one adjustable pole member has a height that is adjustable between a daypack position and an extended position, wherein the extended position is higher than the daypack position. The pack bag can have an adjustable height so that it can be configured complementary to the height of the adjustable pole members. The backpack system may include a sling configured for extending between the frame and pack bag providing a space between the frame and pack bag for accommodating heavy or bulky cargo therebetween. The sling can be extended or retracted in order to selectively adjust the distance between the pack bag and frame.