Modular Thread Spool Base for Sewing Machines
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Solution Overview
Problem
Conventional thread spool devices for sewing machines are larger than necessary for users who only require one or two types of needle thread, necessitating extra space for mounting multiple spools.
Innovation Solution
A modular sewing machine design that combines small thread spool bases, allowing users to attach and detach additional spool bases as needed, with guide members to manage the needle thread efficiently, reducing the overall space requirement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple thread spool pins are fixed on the thread spool base in advance, then the device can accommodate multiple types of needle thread, but the size of the thread spool device becomes larger than necessary for users who only use one or two types of needle thread
Solution Approach 1:
The thread spool base is divided into multiple independent regions, each capable of mounting a thread spool pin. Users can selectively attach only the number of pins they need (one, two, or more), rather than having all pins permanently fixed. This segmentation allows the device to adapt to different user needs while minimizing the occupied space.
Solution Approach 2:
The thread spool pins are designed to be dynamically adjustable - users can attach or detach pins from the thread spool base according to the number of needle thread types they require. This dynamic configuration enables the device to change its capacity flexibly, avoiding the need for a large fixed structure.
2Ease of manufacture
If a fixed number of thread spool pins are provided, then the structure is simple and easy to manufacture, but it cannot accommodate varying user needs for different numbers of thread spools
Solution Approach 1:
The thread spool base is segmented into multiple mounting regions with standardized attachment interfaces. Each region can independently hold a thread spool pin, and the pins themselves are simple standardized components. This segmentation maintains manufacturing simplicity while enabling flexible configuration to meet various user needs.
Solution Approach 2:
The thread spool base is designed with universal mounting features that can accommodate any number of thread spool pins from one to five. The standardized interface and structure allow the same base to serve multiple functions - it can be used with a single pin for simple applications or with five pins for complex multi-thread applications, eliminating the need for different base designs.
Data Source
AI summary
A sewing machine includes a first thread spool base having a first thread spool pin and a first guide member, and a second thread spool base having a second thread spool pin and a second guide member. The first thread spool pin is inserted into a through hole of a thread spool. The first guide member has a first thread guard portion that guides a needle thread delivered from a thread spool mounted on the first thread spool base to the sewing machine. The second thread spool base can be attached to and removed from the first thread spool base. The second thread spool pin is inserted into a through hole of the thread spool. The second guide member has a second thread guard portion that guides a needle thread delivered from the thread spool mounted on the second thread spool base to the sewing machine.