Sewing Assembly Thread Dispensing and Cutting Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sewing boxes fail to prevent tangled threads and ensure clean cutting of thread ends, as unwound thread often becomes loose and entangled with other threads or pulled back into the spool.
Innovation Solution
A sewing assembly with a container featuring pins for spool storage, thread cutters, slots for aligning and cutting unwound thread, and a needle threader to maintain thread alignment and prevent tangling, using anti-skid coatings to enhance friction and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If thread is unwound from spool for use, then thread becomes loose and accessible, but thread becomes tangled with other threads or pulled back towards spool
Solution Approach 1:
The container is divided into multiple compartments, each dedicated to a single spool of thread. This segmentation isolates threads from different spools, preventing them from tangling with each other while remaining easily accessible for individual use.
Solution Approach 2:
Thread guides are introduced as intermediary elements between the spool and the user. These guides channel the thread along a predetermined path, keeping it aligned and preventing it from becoming loose or tangling with other threads while still allowing easy access.
2Ease of operation
If cutting means is added to cut thread, then thread can be cut at desired length, but cut strands remain tangled
Solution Approach 1:
The cutting function is extracted as a separate, integrated component (thread cutter) positioned at the end of the thread guide path. This allows thread to be cut precisely where it exits the guide, and the cut ends are immediately directed away from other threads, preventing tangling of cut strands.
Solution Approach 2:
The thread cutter acts as an intermediary device that not only cuts the thread but also directs the cut ends along a controlled path away from other threads. This intermediary function solves both the cutting need and the tangling problem simultaneously.
3Adaptability or versatility
If multiple spools are stored in container, then thread variety is increased, but thread organization and dispensing becomes difficult
Solution Approach 1:
The container is segmented into multiple dedicated compartments, each housing a single spool. This segmentation allows storage of various thread types while maintaining clear organization. Each compartment is designed to hold one spool securely, making it easy to locate and access specific threads by color or type.
Solution Approach 2:
Thread guides serve as intermediaries that extend from each compartment, providing a clear visual and physical path for each thread type. This helps users easily distinguish between different threads and follow the correct path for dispensing, maintaining organization even with multiple spools.
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 sewing assembly effectively stores, dispenses, and cuts thread while preventing tangling and retraction, ensuring the cut thread remains aligned and taut, facilitating efficient use of multiple threads without entanglement.
Implementation Method 1
using anti-skid coatings to enhance friction and retention
Data Source
AI summary
There is provided a sewing assembly that comprises a plurality of pins for receiving spools of thread, a plurality of thread cutters and retainers adjacent an extremity of the container, a plurality of slots located therebetween, and a needle threader. Thread unwound from a thread spool and received within a respective slot is cut by pressing the unwound thread at a desired length within a respective thread cutter so as to cut the unwound thread and simultaneously retain uncut thread within a respective thread retainer.