Thread Standing Device for Sewing Machine Spool Pin Switching
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Solution Overview
Problem
Conventional thread standing devices for sewing machines require manual and labor-intensive operation to switch spool pins between stored and deployed states, affecting operability and efficiency.
Innovation Solution
A thread standing device with a base that swingably supports spool pins, a slider with a stopper mechanism, and an elastic body that assists in switching spool pins between states, allowing for simultaneous or sequential deployment with an operation portion, enhancing the switching process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple spool pins are manually pulled up individually to switch from stored state to deployed state, then the spool pins can be deployed, but the operability and efficiency are reduced due to labor-intensive operation
Solution Approach 1:
The patent merges multiple spool pin operations into a single unified operation. The operation portion is connected to all spool pins through a common mechanism (such as a rod or linkage system), allowing simultaneous deployment of multiple spool pins when the operation portion is actuated once, rather than requiring individual manual pulling of each spool pin
Solution Approach 2:
The operation portion serves as a universal control mechanism that can deploy multiple spool pins simultaneously. This single component performs the function of multiple individual operations, making the system more efficient and easier to operate by consolidating control functions
2Volume of moving object
If spool pins are made detachable and storable to downsize the sewing machine, then the storage capability is improved, but the complexity of switching between stored and deployed states increases
Solution Approach 1:
The spool pins are designed to nest within the housing or base structure when in the stored state. The operation portion connects to the spool pins in a way that allows them to be pulled out from a nested position to a deployed position, enabling compact storage while maintaining simple switching mechanics
Solution Approach 2:
The spool pins are designed with dynamic characteristics, allowing them to transition between fixed (stored) and movable (deployed) states. The operation portion utilizes elastic bodies or spring mechanisms to provide dynamic switching capability, where the spool pins can be easily deployed when needed and automatically return to or remain in the stored position when not in use
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
Improves the operability of switching multiple spool pins between stored and deployed states, reducing the effort required and enhancing usability and efficiency in sewing machine operations.
Implementation Method 1
an elastic body which energizes the spool pins in a direction of switching from the stored state to the deployed state
Data Source
AI summary
In a thread standing device capable of switching a plurality of spool pins between a stored state and a deployed state and a sewing machine having the thread standing device, an operability is improved during the switching operation. In a thread standing device, a plurality of spool pins can be switched between a stored state and a deployed state, operation portions related to a switching operation of the plurality of spool pins is provided, and the plurality of spool pins are configured to be switched from the stored state to the deployed state when the operation portions are operated.