Drawstring Bag Interconnected Loop Hanging
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Solution Overview
Problem
Existing drawstring bags face difficulties in being easily fixed on the edge of a container and filled without restricting the bag opening when suspended, due to short drawstrings that reduce the bag opening size.
Innovation Solution
A drawstring bag design featuring two side walls with folded hems, side seams, and interconnected drawstrings that form a loop for hanging, allowing the bag to be securely fixed on a container and easily filled without reducing the bag opening width, with the drawstrings connected at second thumb holes and optionally perforated for easier separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drawstrings are connected directly to the side seams, then the bag can be fixed to the container edge, but the bag opening is reduced and filling is hindered
Solution Approach 1:
The drawstring connection is segmented into two separate locations: one connection point near the side seam for securing the bag to the container, and another connection point away from the side seam for forming the hanging loop. This segmentation allows the bag to be fixed reliably while preserving the opening width for easy filling.
2Ease of operation
If the drawstrings are made short to enable easy fixing, then the bag can be secured to the container, but the bag opening is reduced
Solution Approach 1:
The drawstring connections are arranged in different spatial dimensions: one connection is positioned laterally near the side seam while the other is positioned at a distance from it. This dimensional arrangement allows the drawstrings to form an effective fixing mechanism without reducing the bag opening area, as the connections are distributed across different spatial locations rather than concentrated at a single point.
3Area of stationary object
If the drawstrings are connected away from the side seam, then the bag opening is maintained, but the fixing capability is reduced
Solution Approach 1:
The fixing capability is achieved by merging two functions: the drawstrings are connected at two separate locations, where one connection near the side seam provides anchoring, and the other connection forms a loop for hanging. This combination of connection points merges the securing function with the hanging function, maintaining both bag opening area and fixing capability.
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 and easy filling of the bag without obstructing the opening, as the drawstrings are connected to form a loop that can be hung externally, maintaining the bag's openness and facilitating production from continuous film materials.
Implementation Method 1
Elastic drawstrings are arranged in the hems. These are connected to each other through the openings in the two hems. The drawstring bag can be placed in a waste container and fixed to the upper edge of the waste container by means of elastic expansion of the drawstrings.
Implementation Method 2
The ends of the drawstrings are welded into the two side seams.
Data Source
Figure 1~2b
Figure 3
AI summary
Drawstring bag made of foil material, comprising: • two side walls overlapping around a bottom fold line, • each having a folded-over hem opposite the bottom fold line, • the side walls, including the hems, being connected laterally by side seams extending perpendicular to the bottom fold line, • the hems enclosing a bag opening, • each hem having a first thumb hole open at its upper edge in the center and a second thumb hole open at its upper edge next to one of the two side seams, • a drawstring is arranged in each hem, • the ends of the drawstrings are connected to the same side seam on the side of the first thumb holes facing away from the second thumb holes, and • the drawstrings are connected to each other next to the second thumb holes.so that a loop formed by the interconnected drawstrings for hanging on a hook can be pulled out of the second thumb holes, and the drawstrings can be pulled out of the first thumb holes by gathering the hems.