Fabric Cover Alignment on Rigid Containers
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Solution Overview
Problem
Current methods for sewing a flexible fabric cover to a rigid container often result in misalignment and a non-flush connection, leading to aesthetic issues and potential tearing, as the seam may not remain parallel with the container's perimeter during the sewing process.
Innovation Solution
A method involving a portable, resealable storage container design with a ridge along the sidewalls and a mating surface to align and secure the fabric cover, ensuring the seam is parallel and flush, using an attachment band and flap mechanism that can be connected via zippers, buttons, or magnets, and fastened by sewing or adhesive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the fabric cover is manually sewn to the rigid container using traditional methods, then the manufacturer can attach the cover to the container, but the seam may become misaligned and non-flush during the sewing process, affecting aesthetic appeal and connection reliability
Solution Approach 1:
The patent applies preliminary action by pre-attaching the fabric cover to a rigid support structure (such as a foam board or rigid backing) before attaching it to the container. This pre-attachment ensures the fabric maintains proper alignment and remains flush against the container during the sewing process, eliminating misalignment issues that occur when sewing fabric directly to the container.
Solution Approach 2:
The patent introduces an intermediary rigid support structure (foam board, rigid backing, or support panel) that acts as a mediator between the fabric cover and the container. This intermediary provides a stable base for attaching the fabric, ensuring it remains properly positioned and flush during attachment, while also distributing sewing forces evenly to prevent misalignment.
2Reliability
If the fabric cover is sewn directly onto the container, then the attachment is straightforward, but the bottom portion of the cover becomes offset from the container walls, creating a non-flush connection that is susceptible to tearing
Solution Approach 1:
The patent applies preliminary action by pre-attaching the fabric cover to a rigid support structure that matches the container's dimensions and shape. This ensures the fabric is pre-positioned to be flush with the container walls, preventing offset and tearing during use.
Solution Approach 2:
The patent changes the physical parameters of the support structure to match the container's geometry, ensuring the fabric attached to it will be properly aligned and flush with the container walls, thereby improving connection durability and preventing tearing.
3Productivity
If traditional manual sewing methods are used to attach the fabric cover, then the process can be completed with simple tools, but the process is tedious and time-consuming due to the need for precise alignment marking and careful sewing
Solution Approach 1:
The patent applies preliminary action by pre-attaching the fabric to a rigid support structure with pre-established alignment features. This eliminates the need for time-consuming chalk marking and careful alignment during the sewing process, significantly reducing manufacturing time and improving productivity.
Solution Approach 2:
The rigid support structure acts as an intermediary that simplifies the sewing process by providing a stable, easy-to-sew surface. The fabric is already positioned correctly on this support, allowing workers to sew quickly without continuous alignment adjustments, thereby reducing production time.
Data Source
AI summary
A portable, resealable storage container and a method for manufacture are provided. The container includes a body having a bottom opposite an opening, and sidewalls attached to the bottom, wherein the body defines a storage cavity. A top having an attachment band and a flap operable to connect to and disconnect from the attachment band covers the opening of the body when connected to the body. A ridge is disposed along an outer surface of the sidewalls and is configured to provide a seat for the attachment band of the top. A mating surface disposed at an upper end of the sidewalls above the ridge and is operable to contact the attachment band of the top. When the top is positioned to sit atop the ridge, the attachment band is in substantially continuous contact with the mating surface. The top is securely fastened to the body.