Sewing Machine Needle Shank Grooves for Visual Identification
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Solution Overview
Problem
Sewing machine needles are difficult to visually identify due to their small and thin nature, making it challenging to determine the type, size, or product information.
Innovation Solution
A sewing machine needle design featuring a cylindrical shank portion with continuous circumferential groove portions that extend over the entire circumference, allowing for easy visual identification of the needle type, size, and product information, regardless of the needle's orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If sewing machine needles are made thin and small for precise sewing operations, then sewing precision is improved, but visual identification of needle type becomes difficult
Solution Approach 1:
The shank portion is segmented with groove portions that divide the circumferential surface into distinct sections. These grooves create visible patterns (such as dividing the surface into 2, 3, or 4 sections) that can be easily distinguished by sight, solving the identification difficulty while preserving the needle's thin and small dimensions for precise sewing operations
Solution Approach 2:
The groove portions are strategically positioned on the shank portion to create unique local patterns that identify specific needle types. By varying the number, position, and configuration of grooves in different regions of the shank, each needle type acquires a distinctive visual signature without affecting the overall needle geometry required for precise sewing
Data Source
Figure 1(a)~1(d)
Figure 2(a)~2(b)
Figure 3
AI summary
The present invention provides a sewing machine needle including: a cylindrical shank portion 11 that is attached to a sewing machine; and a needle shaft portion 20 that is provided closer to a tip of the sewing machine needle than the shank portion 11; wherein one or more groove portions 12 are formed in a circumferential face of the shank portion 11 to extend continuously over the entire circumference. Thus, a type of the sewing machine needle can be visually checked easily.