Convertible Reusable Bag with Sliding Handle Loop
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional single-use plastic bags are environmentally harmful and lack versatility, durability, and adjustable carrying configurations, while reusable bags often have high material and manufacturing costs.
Innovation Solution
Development of a versatile, foldable, and reusable bag with adjustable handles that can convert between hand-carry, shoulder-carry, and backpack configurations, made from materials like PET or polypropylene, using heat sealing and minimal stitching for strength and flexibility, allowing for compact storage and multiple uses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional single-use plastic bags are used, then manufacturing cost and material cost are low, but environmental harm increases and durability is poor
Solution Approach 1:
The patent promotes transitioning from single-use disposable bags to reusable bags that can be discarded and recovered multiple times. The reusable bag design allows the same bag to serve multiple purposes across different uses, reducing the need to continuously produce new bags and thereby reducing environmental harm while maintaining cost-effectiveness through extended product lifecycle.
Solution Approach 2:
The patent changes key parameters of the bag design including material selection (recycled plastics, durable fabrics), structural features (gussets, reinforced handles, bottom grommets), and functionality (convertible carrying options, foldability) to transform the bag from a single-use product to a multi-use reusable product, addressing environmental concerns while maintaining manufacturing feasibility.
2Reliability
If reusable bags are made with adequate strength for multiple uses, then durability improves, but material cost and manufacturing complexity increase
Solution Approach 1:
The patent segments the bag into functional components (body, handles, gussets, bottom reinforcement) that can be optimized independently for durability while controlling overall manufacturing cost. Each component is designed to perform its specific function efficiently, allowing selective reinforcement where needed rather than uniformly increasing material usage throughout the entire bag.
Solution Approach 2:
The patent employs composite material strategies by combining different materials (recycled plastics, durable fabrics, metal grommets) to achieve the required durability for multiple uses. This allows the bag to meet strength requirements through material combinations rather than using expensive single-material solutions throughout.
3Ease of manufacture
If conventional reusable bags have fixed handles for hand-carry or shoulder-carry, then manufacturing is simple, but versatility and adaptability are limited
Solution Approach 1:
The patent implements dynamic handle systems that can change configuration based on user needs. Handles are designed to be adjustable in length and position, and can be reconfigured between hand-carry, shoulder-carry, and backpack modes. This dynamic adaptability is achieved through mechanisms like sliding attachments, adjustable straps, and modular handle components that maintain manufacturing simplicity while providing versatility.
Solution Approach 2:
The patent designs the bag with universal carrying capabilities by incorporating multiple carrying configurations into a single bag design. The handle system serves multiple functions (hand-carry, shoulder-carry, backpack) rather than being dedicated to a single mode, increasing versatility without requiring separate bags for different carrying needs and maintaining manufacturing efficiency through integrated design.
4Volume of moving object
If reusable bags are designed for compact folding, then storage efficiency improves, but structural complexity increases
Solution Approach 1:
The patent incorporates curved and rounded design elements that facilitate compact folding and nesting. The bag structure uses curved seams, rounded corners, and flexible panel arrangements that naturally fold into compact forms without requiring complex mechanical folding mechanisms. This curvature-based approach achieves small storage volume while maintaining structural integrity and avoiding excessive complexity.
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 solution provides a cost-effective, durable, and environmentally friendly packaging option that minimizes waste by enabling efficient use of materials and multiple carrying configurations, while maintaining a thin profile and high utility.
Implementation Method 1
a transverse panel heat-sealed to an upper portion of the first bag wall and configured to include a gap in the seal that forms a loop
Data Source
AI summary
A convertible, reusable bag includes a first bag wall; a first side panel; a second side panel; a second bag wall aligned and joined to the first bag wall by the first side panel and the second side panel at a first heat sealed and/or sewn side edge, a second heat sealed and/or sewn side edge, respectively; a bag bottom comprising a substantially planar, foldable surface, the first and the second bag walls, the first and the second side panels, and the bottom formed of a single sheet and together arranged to form a bag defining an opening at a top thereof; a handle attached to a lower portion of the first wall at a first end, and an upper portion of the second wall at the second end; a transverse panel heat-sealed and/or sewn to the upper portion of the first wall and configured to include a gap in the seal that forms a loop through which the handle is slidable.