Electronic Pen Rear Weight Attachment for Adjustable Balance
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Solution Overview
Problem
Existing electronic pens lack the ability to adjust the position of the center of gravity and weight to accommodate different user preferences and usage scenarios, such as fine drawing or large character input, due to limited adjustment range provided by existing weight adjusting mechanisms.
Innovation Solution
An electronic pen design featuring a detachable weight member that can be attached to an attachment portion on the opposite end of the pen body, allowing the center of gravity to be shifted to the rear end side, with a detachable cap case unit and elastic member to secure the weight member in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a weight adjusting member is provided in the part ranging from the vicinity of the gripping position to the pen tip side, then the weight and gravity center position can be adjusted, but the adjustment range is narrow and cannot shift the gravity center to the rear end side
Solution Approach 1:
The electronic pen is divided into a main body unit and a detachable cap case unit. The cap case unit can be removed to expose the rear end opening, allowing weight members to be attached at the rear end position. This segmentation enables the gravity center to be shifted to the rear end side, significantly expanding the adjustment range beyond what was possible with fixed internal weight adjusters.
Solution Approach 2:
The cap case unit is extracted as a detachable component from the main body unit. By removing the cap case unit, the rear end opening becomes accessible for attaching weight members. This extraction allows the weight adjustment mechanism to utilize the rear end position, which was previously inaccessible, thereby expanding the gravity center adjustment range.
2Ease of operation
If the pen tip side is made lighter by shifting gravity center to the rear end side, then fine drawing input becomes easier, but the structure becomes more complex
Solution Approach 1:
The electronic pen transitions from a fixed weight configuration to a dynamic, adjustable weight configuration. The detachable cap case unit and weight member attachment mechanism allow users to dynamically adjust the gravity center position according to their needs, such as shifting it to the rear end side for fine drawing tasks, thereby improving operational ease for different writing scenarios.
Solution Approach 2:
The cap case unit serves as an intermediary component that facilitates weight member attachment. When removed, it provides access to the rear end opening where weight members can be attached. This intermediary mechanism enables simple weight adjustment without requiring complex internal mechanisms within the main body unit.
Data Source
AI summary
Provided is an electronic pen including an electronic pen main body unit having a pen shape, and having a pen tip that, in operation, performs a position indication, the pen tip being formed in an end portion on a first end side of the electronic pen main body unit in an axial direction of the electronic pen main body unit, a weight member; and an attachment portion that detachably attaches to the weight member, the attachment portion being formed in an end portion on a second end side of the electronic pen main body unit in the axial direction of the electronic pen main body unit.