Water-Resistant Tote Bag With Semi-Rigid Base
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Solution Overview
Problem
Conventional tote bags lack durability, water resistance, and ease of cleaning, making them unsuitable for carrying bulky or wet items effectively.
Innovation Solution
A tote bag design featuring a water-resistant outer shell, antimicrobial materials, a semi-rigid base for upright stability, and a waterproof zipper system, along with internal pockets and dividers for organization, allowing easy cleaning and secure carrying of items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tote bags are made from basic materials, then they are easy to manufacture and inexpensive, but they lack durability and water resistance
Solution Approach 1:
The patent employs composite materials including a water-resistant outer shell material, an antimicrobial inner liner material, and a semi-rigid base material. These composite materials are selected to provide specific functional properties (water resistance, antimicrobial capability, structural rigidity) while maintaining manufacturability through standard fabrication processes for each material type.
Solution Approach 2:
Different regions of the tote bag are constructed from materials with specialized local properties: the outer shell uses water-resistant material for protection, the inner liner uses antimicrobial material for hygiene, and the base uses semi-rigid material for structural support. This localized material selection optimizes durability in critical areas without unnecessarily complicating the entire manufacturing process.
2Object-affected harmful factors
If the tote bag is designed to be water-resistant and antimicrobial, then it provides better protection for contents, but the cleaning process becomes more complex
Solution Approach 1:
The tote bag is designed with self-cleaning characteristics through the antimicrobial inner liner material that actively prevents bacterial growth. The water-resistant outer shell is configured to repel water and dirt, allowing the bag to maintain its protective properties while being easy to clean by simply rinsing with water, thus the bag essentially cleans itself through its material properties.
Solution Approach 2:
The materials are selected with specific parameter properties: the outer shell has a water contact angle greater than 90 degrees for water resistance, and the inner liner has antimicrobial activity. These parameter changes in material selection enable the bag to be both water-resistant and easy to clean, as the specialized materials prevent contamination rather than requiring complex cleaning procedures.
3Stability of the object's composition
If a semi-rigid base is added to maintain upright stability, then the bag structure improves, but the device complexity increases
Solution Approach 1:
The semi-rigid base is constructed as a thin-film or shell-like structure that provides the necessary structural support for upright stability. This base layer is integrated into the bottom of the tote bag, forming a rigid platform without adding significant bulk or complexity. The flexible shell approach allows the base to maintain its shape and provide stability while remaining relatively simple in construction.
4Adaptability or versatility
If internal pockets and dividers are added for organization, then the storage functionality improves, but the manufacturing precision requirements increase
Solution Approach 1:
The storage compartment is segmented into multiple sections using internal dividers and pockets that are attached to the inner liner. These segmentation elements are designed as separate, modular components that can be independently manufactured and then assembled into the storage compartment. This segmentation approach provides excellent organization functionality while reducing the overall manufacturing precision requirements, as each component can be made separately with standard tolerances rather than requiring precision integration.
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
A bag including a shell defining a sidewall, an upper portion, a rim, an opening, a front, a back, and a lower portion, wherein the opening is configured to allow access to a storage compartment, a semi-rigid base defining a bottom of the bag, wherein the shell and the semi-rigid base form the storage compartment, and a first internal divider panel attached to the sidewall and configured to transition from a first position to a second position, wherein the first position is a stowed configuration and the second position is in an extended configuration, a second internal divider panel attached to the sidewall opposite the first internal divider panel and configured to transition from the first position to the second position, wherein the first internal divider panel and the second internal divider panel are flush with the sidewall in the first position.