Marking Pen Fin and Stylus Design
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Solution Overview
Problem
Conventional pens and styluses lack versatility and functionality, particularly for use in environments where writing and touchscreen interaction are required simultaneously, and they often roll on flat surfaces, making them inconvenient for construction workers and others who need to mark objects while working.
Innovation Solution
A combination pen and stylus design featuring a cylindrical body with a fin to prevent rolling, a removable cap for attaching to clothing, and a capacitive stylus tip that allows operation of touch screens while wearing gloves, integrated with a marking tip for various writing tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional pen design is used, then the writing function is provided, but the pen rolls on flat surfaces making it inconvenient for use
Solution Approach 1:
The patent applies asymmetry by adding a fin protrusion to the otherwise cylindrical pen body. This creates an asymmetric geometry that prevents the pen from rolling freely on flat surfaces, directly resolving the contradiction between conventional cylindrical design and rolling stability.
2Adaptability or versatility
If a conventional pen design is used, then the writing function is provided, but it lacks touchscreen interaction capability
Solution Approach 1:
The patent merges two separate functions (writing and touchscreen interaction) into a single integrated device. The pen body incorporates both a marking tip for writing and a capacitive stylus tip for touchscreen operation, eliminating the need for separate pens and styluses.
Solution Approach 2:
The pen is designed with multi-functionality by incorporating dual tips - a marking tip for traditional writing and a capacitive stylus tip for touchscreen interaction. This universal design allows the single device to perform multiple functions that previously required separate tools.
3Adaptability or versatility
If a removable cap design is used, then the pen can be attached to clothing, but the attachment mechanism becomes more complex
Solution Approach 1:
The clip is segmented into multiple legs (first leg, second leg, third leg) that can independently flex and position themselves. This segmentation allows the clip to adapt to different attachment surfaces while maintaining a relatively simple overall structure.
Solution Approach 2:
The clip incorporates dynamic elements with legs that can flex and move relative to each other. The second leg is spaced from the cap body to create a gap that allows for flexible attachment, enabling the clip to adapt to various clothing surfaces while maintaining structural simplicity.
Data Source
AI summary
A marking pen including a body having a first end, a second end, a longitudinal axis that extends centrally through the body and through the first end and the second end, and a pen adjacent the first end. The body is generally cylindrical from the first end to the second end. The marking pen further includes a fin that extends from the body between the first end and the second end. The fin is integrally formed with the body and has a height measured normal to the longitudinal axis. The height of the fin gradually increases in a direction from the second end toward the first end.