Knot Tying Tool Rotatable Cylinder Mechanism
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Solution Overview
Problem
Existing methods for forming knots, such as in fishing lines or sewing, are challenging due to environmental conditions like wet hands or slippery surfaces, and the small size of the line and loop, making it difficult to secure knots effectively.
Innovation Solution
A knot tying tool with an elongated housing and insert member, featuring slits and a rotatable inner cylinder, allows for easy alignment and locking of the line, facilitating knot formation by aligning slits to allow the line to pass through and then locking it in place, enabling secure knot tying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional knot tying methods are used, then the process can be completed without additional tools, but the knot formation becomes difficult under environmental conditions like wet hands or slippery surfaces
Solution Approach 1:
The patent introduces a knot tying tool as an intermediary device between the user and the knot formation process. This tool provides structured guides and surfaces that facilitate knot tying even when hands are wet or surfaces are slippery, eliminating the direct dependency on manual dexterity under adverse conditions.
Solution Approach 2:
The knot tying process is segmented into distinct stages using separate components within the tool (such as guides for different knot types, alignment features, and locking mechanisms). This segmentation allows each aspect of knot formation to be controlled independently, making the overall process easier to execute under difficult environmental conditions.
2Manufacturing precision
If traditional knot tying methods are used, then no additional equipment is needed, but the precision of knot formation deteriorates due to the small width of the line and loop
Solution Approach 1:
The tool incorporates locally optimized features such as guides with specific geometries matched to particular line diameters, targeted friction surfaces at critical knot formation points, and localized alignment features. These local quality enhancements provide precision where needed without requiring the entire device to be complex.
Solution Approach 2:
The knot tying tool is designed with universal features that can accommodate multiple line widths and knot types through adjustable or interchangeable components. This multi-functionality allows a single device to provide precise knot formation across various applications without requiring separate specialized tools for each line size.
3Ease of operation
If the slits are aligned to allow the line to pass through, then the line can be inserted into the chamber, but the line may become loose or misplaced without a locking mechanism
Solution Approach 1:
The tool employs a dynamic locking mechanism that transitions between open and closed states. During line insertion, the mechanism is in an open state allowing free passage through aligned slits. After insertion, the mechanism can be engaged to lock the line securely in place, providing both ease of insertion and reliable positioning through a single integrated system.
Solution Approach 2:
The locking mechanism is designed to be engaged after line insertion as a preliminary securing action. This preliminary locking prevents the line from becoming loose or misplaced subsequent to insertion, ensuring the line remains securely positioned throughout the knot tying process and beyond.
Data Source
AI summary
Tools and methods are discussed for tying a knot. A knot tying tool can include an elongated housing and an insert member. The housing can have first and second body portions having different outer cross-sections. A first chamber can extend within the housing with a slit that opens into the chamber. The insert member can also have a slit opening into a second chamber. The insert member can have an inner cylinder rotatable and movable within the first chamber. Rotation of the inner cylinder within the first chamber can move the knot tying tool between a locked and an unlocked position, the first and second slits being aligned in the unlocked position to allow a line to pass through the first and second slits into the second chamber.