Storage Bag Reinforcing Member for Wrinkle-Free Sealing
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Solution Overview
Problem
Storage bags made of soft and thin materials often experience seal failures due to heat welding in a wrinkled state, leading to incomplete sealing.
Innovation Solution
A storage bag design featuring a first and second attaching portion, with a reinforcing member integrated into the sealing portions to prevent wrinkling and ensure proper sealing when suspended from holding sections, using a paper-sheet processing device that includes a heating mechanism for heat welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the storage bag is made of soft and thin material, then the storage bag becomes flexible and easy to handle, but the opening may be heat welded in a wrinkled state causing seal failure
Solution Approach 1:
The patent applies local quality by providing a reinforcing member only at the sealing portion of the storage bag, rather than throughout the entire bag. This localized reinforcement prevents wrinkling during heat welding while maintaining the overall flexibility and softness of the storage bag material.
Solution Approach 2:
The patent uses composite materials by combining the soft and thin storage bag material with a reinforcing member made of different material properties. This composite structure allows the storage bag to maintain its flexibility while the reinforcing member provides the necessary structural support to prevent wrinkling during sealing.
2Reliability
If a reinforcing member is added to prevent wrinkling, then seal integrity is improved, but the device complexity increases
Solution Approach 1:
The reinforcing member is positioned only at the sealing portion where it is most needed to prevent wrinkling during heat welding. This localized approach minimizes the addition of complexity while maximizing the improvement in seal integrity.
Solution Approach 2:
The reinforcing member is designed as a thin, flexible component that can be integrated into the storage bag structure without adding significant rigidity or complexity. This allows the reinforcing member to prevent wrinkling while maintaining the overall flexibility and simplicity of the storage bag design.
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 reinforcing member prevents wrinkling and ensures a secure seal, preventing seal failures and ensuring the integrity of the storage bag when closing the opening.
Implementation Method 1
the opening of a storage bag which stores banknotes with a heating member
Implementation Method 2
heat welded in a wrinkled state
Data Source
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AI summary
A storage bag which includes an opening is to be suspended from a first holding section and a second holding section of a paper-sheet processing device. The storage bag includes a first attaching portion to be attached to the first holding section, and provided at an opening end of the storage bag, a second attaching portion to be attached to the second holding section, and provided at the opening end of the storage bag, a first sealing portion which is provided at a position below the first attaching portion, a second sealing portion which is provided at a position below the second attaching portion and which seals the opening by being joined with the first sealing portion, and a reinforcing member provided in either one of the first sealing portion and the second sealing portion.