Collapsible Bag Frame Structure for Stable Flat Folding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing puncture mechanisms for high-pressure gas containers have limitations and lack features that enhance usability and convenience, particularly in securing to ride-on vehicles.
Innovation Solution
A collapsible bag with an internal frame structure and outer shell, featuring living hinges, rigid components, and clips for securing to structures, allowing conversion between use and collapsed orientations, and equipped with handles and connectors for ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid frame structure is used to maintain bag shape, then structural stability is improved, but collapsibility and storage convenience deteriorate
Solution Approach 1:
The frame structure employs movable connections including hinges at corners and sliding mechanisms along edges, allowing the rigid frame to dynamically transition between expanded stable configuration and collapsed storage configuration. This enables the frame to maintain structural integrity during use while being collapsible for compact storage.
Solution Approach 2:
The frame is divided into multiple segments connected by movable joints, with corner portions, side portions, and end portions that can move relative to each other. This segmentation allows the frame to collapse into a compact configuration while maintaining rigidity when expanded.
2Volume of moving object
If the bag is designed to collapse flat for storage, then storage space efficiency is improved, but structural support during use deteriorates
Solution Approach 1:
The frame structure transitions dynamically between a collapsed flat configuration for compact storage and an expanded three-dimensional configuration for structural support during use. The movable connections enable this transformation while maintaining strength when deployed.
Solution Approach 2:
The frame is pre-configured with movable connections and geometric arrangements that automatically provide structural support when expanded, eliminating the need for additional support mechanisms while enabling compact collapse for storage.
3Reliability
If puncture mechanisms are added to high-pressure gas containers, then safety is improved, but device complexity deteriorates
Solution Approach 1:
The puncture prevention function is extracted as a separate mechanical feature integrated into the frame structure, using the frame's geometry and movable connections to prevent puncture forces from being applied to the bag, thereby improving safety without adding complex internal mechanisms.
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
Enables secure attachment to ride-on vehicles and easy conversion between open and collapsed positions, enhancing usability and convenience.
Implementation Method 1
The corners (30, 36) are living hinges
Implementation Method 2
a bottom retainer member in the cavity and adjacent the bottom wall in the use orientation of the collapsible bag... wherein the bottom retaining member pivots from a use position to a collapsed position
Implementation Method 3
the rear frame has clips to secure the collapsible bag to another structure
Data Source
AI summary
A collapsible bag that has a use orientation and a collapsed orientation. The bag has an internal frame structure supported by an outer shell. The internal frame structure has a first folding sidewall, a second folding sidewall, a front frame, a rear frame and a bottom member. The outer shell is made of fabric and has a first sidewall, a second sidewall, a front wall, a rear wall and a bottom wall, which define a cavity, and a bottom retainer member. The internal frame structure is retained within the walls of the outer shell. The bottom retaining member pivots from a collapsed position to a use position, and holds the outer shell in the use orientation when in the use position.