Backpack Lumbar Compartment Waist Bag Rotation Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing backpack and waist bag carrying systems do not allow for easy deployment of the waist bag to the front of the user while wearing a backpack, limiting access to the waist bag's contents without removing the backpack.
Innovation Solution
A backpack design with a compartment in the lumbar region and side openings that enable the waist bag to be rotated to the front, secured by a door or zipper system, allowing the waist bag to be accessed without removing the backpack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the waist bag is integrated into the backpack with a compartment and side openings, then the ease of operation is improved by allowing rotation to the front, but the device complexity increases due to additional doors and securing mechanisms
Solution Approach 1:
The waist bag receiver is nested within a compartment of the backpack, allowing it to be stored inside when not in use. The receiver can be inserted through side openings and secured within the compartment, creating a nested configuration that reduces complexity when the waist bag function is not needed.
Solution Approach 2:
The system transitions from a static backpack structure to a dynamic configuration where the waist bag receiver can rotate about the user's waist. The door mechanism allows the compartment to open and close dynamically, enabling the receiver to move between stored and deployed positions.
2Ease of operation
If side openings are made large enough to accommodate the waist bag belt, then the ease of operation is improved for deployment, but the reliability decreases as the receiver may pass through unintentionally
Solution Approach 1:
The side opening is segmented into two functional zones: an upper portion that is large enough to allow intentional insertion and removal of the receiver, and a lower portion that is restricted in size to prevent accidental passage. This segmentation allows the opening to serve both deployment and security functions.
Solution Approach 2:
The door acts as an intermediary mechanism between the compartment interior and the exterior environment. It controls access to the receiver, allowing intentional deployment while preventing accidental loss. The door mediates between the need for easy access and the need for secure retention.
3Reliability
If a door is added to secure the opening, then the reliability is improved, but the ease of operation worsens due to additional securing steps
Solution Approach 1:
The door is designed to be secured by the user's own actions during the natural deployment process. When the user inserts the receiver through the side opening, they naturally pull the door closed behind it, securing the compartment without requiring separate fastening actions. The system uses the user's own movements to accomplish the securing function.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention provides improved backpack and waist bag carrying systems in which a waist bag rotates through a lower compartment of a backpack to allow the bearer of the backpack to access the contents of the receiver of the waist bag by rotating the waist bag to the front of the bearer's torso. One or more doors are provided in one aspect to secure the receiver of the waist bag in the lower compartment of the backpack but permit the egress of the receiver through the opening covered by the door, which may be tensioned away from the opening by a tensioning system when the free end of the door is released. The receiver is tapered to easily fit into the lower compartment and remain in that compartment due to friction with the walls defining the compartment.