Elastic Bobbin Holder with Sliding Bead for Variable Spool Sizes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sewing equipment lacks a convenient and versatile solution for securely storing and retrieving bobbins and thread spools of widely varying sizes, which are frequently switched during seamstress work.
Innovation Solution
A device utilizing a rubber band with a slide piece or bead that can adjust to accommodate different sizes, securing bobbins to thread spools or cones by sliding along the rubber band and using a cap with a hook mechanism to keep the bobbin firmly in place, allowing for easy storage and retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-size bobbin holder is used, then the structure is simple, but it cannot accommodate bobbins of different sizes
Solution Approach 1:
The rubber band is made adjustable in length through the bead that can slide along it, allowing the holder to dynamically adapt to different bobbin sizes. The bead's position on the rubber band can be changed to accommodate various dimensions, transforming a static structure into a dynamic one that responds to different usage requirements.
Solution Approach 2:
The rubber band is divided into functional segments by the bead, which can be positioned at different locations to create appropriate tension zones. This segmentation allows the same rubber band to serve multiple size requirements by changing where the bead is located along its length.
2Adaptability or versatility
If a versatile holder for various spool and bobbin sizes is designed, then adaptability is improved, but the device complexity increases
Solution Approach 1:
The rubber band with movable bead serves multiple functions: it holds the bobbin, adapts to different sizes, and maintains tension. The cap also serves dual purposes by engaging with both the bobbin and the rubber band. This multi-functionality reduces the need for separate components for each size accommodation.
Solution Approach 2:
The movable bead on the rubber band provides a simple mechanical means to adjust the holder's dimensions without requiring multiple different holders or complex adjustment mechanisms. This dynamic element enables one component to replace what would traditionally require several fixed-size components.
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 device provides a versatile and efficient means to maintain bobbins with corresponding thread spools, accommodating various sizes and ensuring secure storage and quick retrieval, enhancing workflow efficiency in sewing operations.
Implementation Method 1
a rubber band (elastic band), a slide piece or bead secured to the rubber band
Data Source
AI summary
A device links thread spools with matching bobbins, using a rubber band. A cap or head extends down through a center bobbin hole and has a hook at its lower end. The rubber band is connected to this hook and extended down through the center hole of a thread spool. The rubber band is then spread open, stretched around the spool and over the top of the bobbin, and slipped into a groove at the top of the cap or head, thereby retaining the bobbin against the top of the spool. Provision is included for curtailing the length of the band when needed for a shorter spool. This can be a bead slidable on the rubber band, or multiple parallel grooves on the top of the cap, to take up some of the length of the band.