Backpack Auxiliary Loading Portion for Large Item Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional backpacks have limitations in size, preventing the storage of large or column-shaped items, which must be carried externally, leading to potential delays and disorganization when accessing items stored inside.
Innovation Solution
A backpack design featuring a first and second backpack member with an auxiliary loading portion, including twine guide paths and buckles, allowing the members to unfold and expose outward, enabling the secure carrying of large items without altering the backpack's center of gravity or affecting the storage compartment's opening and closing mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If items are hung outside the backpack, then large items that cannot fit in the storage space can be carried, but time delay and disorder occur when accessing items inside the backpack
Solution Approach 1:
The backpack is divided into distinct functional zones: an internal storage space for regular items and an external auxiliary loading portion for large items. This segmentation allows users to access small items from the internal storage without removing large items from the external portion, eliminating time delay and disorder when accessing items.
2Volume of stationary object
If the backpack structure is expanded to accommodate large items, then capacity increases, but the fit and balance on the shoulder deteriorates
Solution Approach 1:
The auxiliary loading portion is positioned at the bottom of the backpack structure, utilizing the vertical dimension rather than expanding horizontally. This strategic placement maintains the backpack's overall center of gravity near the wearer's back, preserving fit and balance even when large items are loaded in the external portion.
3Adaptability or versatility
If the auxiliary loading portion is made adjustable in width, then adaptability to different item sizes improves, but device complexity increases
Solution Approach 1:
The auxiliary loading portion utilizes flexible side panels that can be adjusted in width by pulling them apart. The panels are connected through simple hinge mechanisms and fasteners, allowing the loading portion to expand or contract based on item size requirements without requiring complex mechanical structures.
4Volume of stationary object
If large items are stored in the backpack, then capacity utilization improves, but the opening and closing of the storage space is affected
Solution Approach 1:
Large items that would interfere with the storage space opening are extracted and placed in the external auxiliary loading portion. This separate external structure is independent of the main storage compartment, allowing the storage space to open and close freely while large items remain securely held in the external portion.
Data Source
AI summary
A backpack including a first backpack member provided on both sides thereof with shoulder straps, a second backpack member configured onto a rear surface of the first backpack member, and an auxiliary loading portion configured to fix the bottom surfaces of the first backpack member and the second backpack member to each other to enable the first backpack member and the second backpack member to be unfolded in opposite directions, and configured to be exposed outward from the first backpack member and the second backpack member, the backpack including a buckle for coupling at least both side portions of the first backpack member and the second backpack member to each other, wherein the auxiliary loading portion is formed by coupling a pair of panels to each other by a first hinge so as to be folded inward only, in which one of the pair of panels coupled by the first hinge is rotatably fixed to the first backpack member via a second hinge therebetween, and an opposite one of the pair of panels coupled by the first hinge is rotatably fixed to the second backpack member via a third hinge therebetween, so that a gap between the first backpack member and the second backpack member is prevented from being widened, and the first hinge and the pair of panels folded only inward prevent an article loaded on the auxiliary loading portion from sagging, thereby preventing a center of gravity of the backpack from being changed.