Finger-Mounted Writing Tool with Retractable Linking Member
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Solution Overview
Problem
Existing writing tool finger holders are inefficient due to fixed shapes that obstruct transportation and storage, insufficient retractable mechanisms, and lack of adaptability in angle adjustment for user comfort.
Innovation Solution
A writing tool with a deformable finger mounting system that allows shape changes for convenient storage and transportation, and a linking member with a double-wall structure for adjustable angle and retraction to the second joint, enabling comfortable operation and user-preferred angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the part for mounting on a finger is fixed as an independent structure, then the writing tool can be securely mounted on the finger, but the structure becomes an obstacle for transportation, carrying and storage
Solution Approach 1:
The part for mounting on a finger is nested within the linking member structure. When not in use, the mounting part can be retracted or folded into the linking member body, allowing the writing tool to be compact for storage and transportation while maintaining the mounting function when needed.
Solution Approach 2:
The mounting part is designed with dynamic characteristics, allowing it to change its configuration between a deployed state (when mounted on the finger) and a retracted state (for storage). This dynamic design enables the structure to adapt between functional and compact states.
2Ease of operation
If the writing tool is positioned at the back of the fingertip, then the tip of brush remains in the same position, but the writing tool protrudes significantly in front of the second joint, obstructing other operations
Solution Approach 1:
The writing tool incorporates a telescopic or expandable mechanism that allows the writing portion to dynamically adjust its length. When mounted on the finger, the writing tool can be extended to reach the desired writing position, and when not in use, it can be retracted to minimize protrusion and avoid obstructing other hand operations.
Solution Approach 2:
The writing tool is divided into separable segments or sections that can be independently positioned. The writing portion can be extended or retracted relative to the mounting portion, allowing flexible adjustment of the overall length and position to avoid obstruction during other operations.
3Stability of the object's composition
If the writing tool is fixed at one predetermined angle, then the posture is stabilized, but the adaptability to individual preferences and universal use is reduced
Solution Approach 1:
The writing tool incorporates an adjustable angle mechanism that allows the writing portion to be set at multiple predetermined angles or within a range of motion. This dynamic adjustment capability enables the tool to adapt to individual user preferences and writing styles while maintaining stable posture through mechanical guidance or locking mechanisms at selected angles.
Solution Approach 2:
The writing tool is designed with multi-angle capability to serve multiple users with different preferences and writing habits. By providing adjustable angle settings, the tool becomes universally applicable to various individuals and writing scenarios, enhancing its versatility while maintaining posture stability through mechanical design.
Data Source
AI summary
The part for mounting on the finger is provided so as to be integral with a linking member; by means of building-in, folding, inserting and removing, and winding, the holder is made deformable to a carried condition when not in use; a necessary shortest dimension of the writing tool in the written condition is divided into at least two sections, i.e., an axis body 1 and a cap 2; and then, the axis body 1 and the cap 2 are overlapped with each other by means of folding or storing to thereby shorten the writing tool in a retained condition, and the writing tool in the written condition is reversibly movable in a predetermined range to thereby make an angle of the writing tool adjustable.