Sewing Machine Guiding Tool with Suction Attachment and Segmented Guide Surfaces
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Solution Overview
Problem
Conventional guiding tools for sewing machines are limited by their reliance on magnetic attachment, which is ineffective on nonmagnetic materials, and have short guide surfaces, hindering proper fabric guidance.
Innovation Solution
A guiding tool comprising two interconnected guiding members with self-adhesive attaching portions and multiple guide surfaces of varying lengths, allowing attachment to any sewing machine needle plate material and providing extended guidance for fabric alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If magnetic force is used for attachment, then the guiding tool can be easily attached to metal needle plates, but it cannot be used with nonmagnetic materials such as synthetic resin
Solution Approach 1:
The patent changes the attachment mechanism from magnetic force to suction force by replacing the magnet with a suction cup. This parameter change allows the guiding tool to be attached to nonmagnetic materials like synthetic resin needle plates, thereby improving compatibility with different needle plate materials while maintaining reliable attachment through vacuum suction.
2Ease of operation
If the guide surface is made short, then the guiding tool structure is simpler, but it cannot properly guide the fabric through the sewing machine
Solution Approach 1:
The patent divides the guiding tool into multiple segments: a suction cup base portion and multiple guide surfaces of different lengths (first, second, and third guide surfaces). This segmentation allows each guide surface to serve specific guiding functions for different fabric widths and sewing tasks, improving fabric guidance effectiveness while keeping individual components relatively simple.
3Adaptability or versatility
If multiple guide surfaces of different lengths are provided, then various fabric widths and sewing tasks can be accommodated, but the guiding tool structure becomes more complex
Solution Approach 1:
The patent designs the guiding tool with multiple guide surfaces (first, second, and third guide surfaces) of different lengths extending along the periphery of the suction cup base portion. Each guide surface can be used for different fabric widths and sewing tasks, making the single guiding tool universal and adaptable to various sewing applications without requiring multiple separate tools.
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
Enables reliable attachment and effective fabric guidance regardless of the needle plate material, with adjustable guide surfaces accommodating various fabric widths and sewing tasks, including straight and curved stitching.
Implementation Method 1
a bottom surface provided with an attaching portion to be attached to an object (such as the needle plate of a sewing machine) by adhesion or suction
Implementation Method 2
a bottom surface provided with an attaching portion to be attached to an object (such as the needle plate of a sewing machine) by adhesion or suction
Data Source
AI summary
A guiding tool for a sewing machine includes a first guiding member and a second guiding member. Each of the first guiding member and the second guiding member includes a base portion having a predetermined periphery, a guide surface facing to a side of the base portion, and a connecting portion for connection of the first guiding member and the second guiding member. The base portion includes a bottom surface provided with an attaching portion for attaching the guiding tool to an attachment surface of an object due to adhesion or suction. The guide surface of the first guiding member and the guide surface of the second guiding member are configured to be flush with each other when the first guiding member and the second guiding member are connected to each other.