Needle Eye Threading Guide With Funnel Hook Alignment Aid
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Solution Overview
Problem
Existing devices for threading sewing needles are difficult to use, especially for small needles and for individuals with visual impairments or uncontrollable shaking, and require precise alignment, making it challenging to thread needles with a single strand of sewing thread.
Innovation Solution
A device with a solid ergonomic body featuring a receiving portion for the needle, a guide portion with a funnel-shaped passage, and a hook mechanism that guides the sewing thread through the needle eye, allowing for easy threading without requiring both ends of the thread to be free, and optionally incorporating a detection system for correct needle alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional needle threading device is used, then the threading function is provided, but the device requires precise alignment and is difficult to use for small needles
Solution Approach 1:
The patent introduces a needle threading device that acts as an intermediary tool between the user and the needle/thread system. The device includes a holder component that secures the needle, a guide component with a funnel-shaped passage that directs the thread, and a hook component that catches and pulls the thread through the eye. This intermediary mechanism eliminates the need for precise manual alignment by providing structured guidance paths for both the needle and thread.
Solution Approach 2:
The threading device is divided into distinct functional segments: a holder component for securing the needle, a guide component with funnel-shaped passage for directing the thread, and a hook component for catching and pulling the thread. This segmentation allows each component to perform its specific function independently, making the overall device easier to use without requiring precise coordination between multiple moving parts.
2Ease of operation
If a needle threading device is used, then threading assistance is provided, but the device complexity increases
Solution Approach 1:
The patent merges multiple threading assistance functions into a single integrated device. The holder component, guide component with funnel-shaped passage, and hook component are combined in one device that can thread both large and small needles. This consolidation provides comprehensive threading assistance without requiring multiple separate tools, balancing functionality with manageable complexity.
Solution Approach 2:
The threading device is designed with universal applicability to thread various types of needles including both large and small needles. The holder component can accommodate different needle sizes, the funnel-shaped guide passage adapts to different thread thicknesses, and the hook component effectively catches threads of various diameters. This multi-functionality reduces the need for multiple specialized devices.
3Measurement precision
If visual alignment is required for threading, then precise threading is achieved, but it becomes impossible for individuals with visual impairments
Solution Approach 1:
The device serves as an intermediary that transforms the threading task from a visually-dependent manual alignment task into a mechanically-guided process. The holder component secures the needle in a fixed position, the funnel-shaped guide component provides a physical pathway that directs the thread toward the eye, and the hook component automatically catches and pulls the thread through. This mechanical guidance system replaces the need for visual alignment, making the task accessible to individuals with visual impairments while maintaining threading precision.
Data Source
AI summary
A device for assisting with threading an eyed needle with the eye being of a type peripherally delimited by a rim extending substantially in a plane includes a solid body forming an eye receiving portion designed to receive the eye of the needle and to keep the needle in position in relation to the solid body. A passage in the solid body includes a guide portion that forms a first funnel for guiding the hook to bring the hook out of a retracted position and into a threading position. The guide portion also forms a second funnel for returning the hook to the retracted position from the threading position. Each time the hook transitions from and back to the retracted position, the hook moves through the eye of the needle, drawing the thread through the eye when the hook returns to the retracted position from the threading position.