Circleliner Marking Template Tool for Precise Circle Division
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Solution Overview
Problem
Current quilting and home craft tools lack the ability to easily mark circles of non-standard sizes on various surfaces, and existing marking tools are often too large to fit into traditional drafting compasses, requiring multiple tools and calculations for accurate marking.
Innovation Solution
The Circleliner marking template tool, a flexible and transparent plastic template with 90 circle sizes available at ⅛″ increments, functions as both a compass and straightedge, accommodating various marking tools and allowing for precise alignment and division of circles into halves, quarters, eighths, and sixteenths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional drafting compasses and multiple marking tools are used, then various circle sizes can be marked, but the marking process becomes complex and requires multiple tools and calculations
Solution Approach 1:
The patent combines multiple marking functions into a single template tool. The template integrates circle templates of various sizes, arc templates, and division lines (for dividing circles into equal segments) all in one device, eliminating the need for multiple separate tools and complex calculations
Solution Approach 2:
The template serves multiple functions: drawing circles of various sizes, drawing arcs, dividing circles into equal segments, and marking angles. This multi-functional design allows users to accomplish diverse marking tasks with a single tool rather than requiring multiple specialized tools
2Manufacturing precision
If specialty rulers and shapes are used, then marking capability is improved, but they are limited to whole or half-inch increments and cannot accommodate non-standard sizes
Solution Approach 1:
The template is segmented into multiple concentric circles with radii marked at 1/8-inch increments rather than whole or half-inch increments. This segmentation provides 90 different circle size options, allowing precise marking of non-standard sizes while maintaining manufacturing precision
3Ease of operation
If marking tools with larger shafts and points are used, then they are easier to handle, but they cannot fit into traditional drafting compasses
Solution Approach 1:
The patent extracts the circle-drawing function from the traditional drafting compass mechanism. Instead of requiring marking tools to fit inside a compass, the template provides pre-defined circle perimeters that can be directly traced with various marking tools, eliminating the need for compass accommodation
Data Source
AI summary
A tool for inscribing markings onto a medium includes a body with a mounting hole, and at least one slit extending in a line that intersects the mounting hole toward an outer edge of the body, and a number of drawing holes in a face of the body, each hole a different predetermined distance from the mounting hole. The body may have at least one marking line spaced from the at least one slit to allow for subdivision of a shape such as a circle inscribed using the tool, by using at least one of the at least one slit, edges of the tool, and the at least one marking line.