Segmented Messenger Bag System with Draped Chair Access
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Solution Overview
Problem
Conventional messenger bags require users to lay them on a surface or set them on the ground to access contents, which is inconvenient for users who need to move around or are seated.
Innovation Solution
A messenger bag system comprising two interconnected bags that can transition between collapsed and expanded configurations, allowing the bags to be draped over a chair with adjustable connecting members and retaining members to maintain stability and facilitate easy access while being carried.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bag is laid on a table or set on the ground to access contents, then the user can easily access the contents, but the user cannot move around or remain seated
Solution Approach 1:
The bag system is divided into two separate bags connected by connecting members, allowing one bag to be suspended for access while the other can be carried or moved independently. This segmentation enables the user to access contents of one bag while maintaining mobility with the other bag.
Solution Approach 2:
The bag system transitions from a single flat surface configuration to a three-dimensional suspended configuration using connecting members that extend vertically and horizontally. This allows the bags to be draped over chair seats or held in multiple positions, providing access while maintaining user mobility in another dimension.
2Adaptability or versatility
If the bag is carried on the shoulder, then the user can move around, but the user cannot easily access the contents
Solution Approach 1:
By separating the bag into two connected units, the user can carry one bag on the shoulder while having the other bag suspended or positioned for easy access. The connecting members allow the bags to be positioned independently, enabling mobility with one bag while accessing contents of the other.
Solution Approach 2:
The connecting members act as intermediaries between the two bags, allowing one bag to serve as a carrier while the other serves as an accessible storage unit. The connecting members transmit the weight and position information, enabling the user to access contents without removing the carrier bag from the shoulder.
3Stability of the object's composition
If the connecting members are made strong to support bag weight, then the bags remain stable when draped, but the connecting members add weight and bulk to the system
Solution Approach 1:
The connecting members are designed with varying properties along their length - stronger and stiffer near the attachment points to bags where weight bearing is required, and more flexible and lighter in the middle sections. This local differentiation provides stability where needed while minimizing overall weight and bulk.
Solution Approach 2:
The connecting members utilize composite material structures combining different materials with complementary properties - such as rigid materials for weight-bearing sections and flexible materials for connecting sections. This composite approach achieves the required stability while reducing overall weight compared to using a single heavy material throughout.
4Adaptability or versatility
If the connecting members are made adjustable to accommodate different seat widths, then the system becomes more versatile, but the mechanism for adjustment increases complexity
Solution Approach 1:
The connecting members incorporate dynamic adjustment mechanisms that allow the length to be easily changed by the user through simple actions such as sliding, buckling, or unfastening. This dynamic capability enables the system to adapt to different seat widths without requiring complex fixed structures for each possible size.
Solution Approach 2:
The adjusting mechanism allows users to change the physical parameter of length of the connecting members to match different seat widths. By providing discrete adjustable length settings, the system achieves versatility across multiple configurations while keeping the adjustment mechanism simple and user-friendly.
Data Source
AI summary
This disclosure relates to a messenger bag system having two bags and a collapsed and an expanded configuration. The two bags are connected by one or more connecting members. The bag system is configured such that the connecting member(s) can drape over a seat of a chair when the system is in the expanded configuration. Each bag has one or more retaining members. The retaining member(s) of one bag are configured to be adjacent to a retaining member of the other bag when the bags are in the collapsed configuration. A securing member is used to secure adjacent retaining members to keep the bag system in the collapsed configuration.