Container Bag with Recessed Bottom and Reinforcing Straps
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Solution Overview
Problem
Conventional container bags experience barreling phenomena when filled with contents, leading to inefficient use of space and stability issues during transportation and storage, particularly when stacked in automated warehouses, due to high manufacturing costs and potential for product contamination from reinforcing features.
Innovation Solution
A container bag design featuring a quadrangle-shaped bottom wall with central recesses and flexible materials, along with reinforcement straps and loops, which maintains a stable erect shape without barreling, allowing for efficient stacking and increased load capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a square pillar type container bag is used to improve spatial usage when loaded, then the container bag can be efficiently stacked in limited space, but the vertical intermediate areas of the lateral walls bulge out due to self-weight of contents causing barreling phenomenon and deforming the container bag into a cylindrical shape
Solution Approach 1:
The lateral walls are divided into multiple segments by adding reinforcing straps that extend vertically along the walls. These straps segment the continuous lateral wall surface, providing structural support to prevent bulging while maintaining the overall square pillar shape. The segmentation allows the bag to resist deformation forces without compromising spatial efficiency.
Solution Approach 2:
Reinforcing areas are strategically positioned at specific locations where barreling is most likely to occur, such as at the corners and along the vertical edges of the lateral walls. This localized reinforcement provides targeted support to maintain shape stability without adding excessive weight or complexity to the entire structure.
2Shape
If reinforcing areas are formed on container bags to suppress barreling phenomenon, then the barreling is suppressed to a certain extent, but the manufacturing costs are increased and the container bags get torn due to loads concentrated adjacent to the reinforcing areas
Solution Approach 1:
The reinforcing straps are made from flexible materials that can bend and deform along with the container bag, allowing them to distribute loads more evenly rather than creating rigid stress concentration points. This flexibility prevents tearing while maintaining shape stability, and the simple strap design is easier to manufacture than complex reinforcing structures.
3Shape
If partitions are sewn to inner walls to suppress barreling phenomenon, then the barreling is suppressed, but the manufacturing costs are increased, foreign matters are mixed with contents, and the container bags may experience fracture at the partition-connected areas when stacked
Solution Approach 1:
Instead of adding internal partitions that extend into the bag's interior space, the reinforcing straps are positioned on the outer surface of the lateral walls. This inverted approach provides the same barreling suppression function without intruding into the content space, eliminating contamination risks and reducing stress concentration points that could lead to fracture during stacking.
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 container bag design enhances loading efficiency by up to 33.3% compared to conventional bags, providing superior stability and reduced space occupation when stacked, while maintaining flexibility and preventing product contamination.
Implementation Method 1
the container bag is fabricated using a foldable and flexible material
Data Source
AI summary
Disclosed is a container bag for containing particulate materials, which is prevented from being barreled and retained in a stable erect state when contents fill the container bag, whereby the container bag can maximize the loadage of the particulate materials within a limited space with stability. The container bag includes lateral walls, the particulate materials filling an inner space defined by the lateral walls, a bottom wall formed generally in a quadrangle shape and connected to the bottom ends of the lateral walls, a cover connected to the top ends of the lateral walls, and hoops connected to the top ends of the lateral walls, the cover, the lateral walls and the bottom wall being formed from a flexible material, wherein each side of the quadrangle-shaped bottom wall is recessed at the central area thereof.