Touch Pen Weight Compensation with Damping Buffer
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Solution Overview
Problem
Conventional touch pens suffer from noise generation due to metal weight members and require separate adhesives for assembly, which compromises their design and functionality.
Innovation Solution
A touch pen design featuring a pen body with an accommodation space containing multiple weight members and buffer materials, such as rubber, to prevent noise and eliminate the need for adhesives, with a serration-shaped cross-section for easy assembly and magnetic weight members for improved user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal weight members are directly inserted into the pen body, then weight compensation function is achieved, but noise is generated when the touch pen is shaken or during assembly
Solution Approach 1:
The patent introduces a buffer material as an intermediary component between the metal weight member and the pen body. This buffer material absorbs vibrations and prevents direct contact between the weight member and pen body walls, thereby eliminating noise during shaking and assembly while maintaining the weight compensation function.
Solution Approach 2:
The buffer material is pre-installed in the pen body accommodation space before inserting the weight member. This beforehand cushioning approach ensures that the weight member is already protected from direct contact with the pen body, preventing noise generation from the outset during assembly and use.
2Object-generated harmful factors
If adhesive or auxiliary material is used to prevent weight member movement, then noise is reduced, but assembly complexity increases and additional materials are required
Solution Approach 1:
The buffer material is designed to automatically cushion and secure the weight member through its elastic properties alone, without requiring any additional adhesive or auxiliary materials. The buffer material serves multiple functions simultaneously: noise reduction, weight member positioning, and shock absorption, simplifying the overall assembly process.
3Reliability
If acetyl yarn material is used for the pen tip, then touch operation function is achieved, but the diameter must be large which deteriorates exterior design
Solution Approach 1:
The patent employs composite material construction for the pen tip, combining acetyl yarn with additional structural materials. This composite approach maintains the tactile feedback and touch operation functionality of acetyl yarn while reducing the overall diameter through optimized material properties and structural design.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces noise and enhances user experience by preventing weight member movement and allowing for adhesive-free assembly, while improving the pen's appearance and functionality with magnetic components.
Implementation Method 1
a buffer material disposed between adjacent weight members among the plurality of weight members to prevent movement of the plurality of weight members in the longitudinal direction
Implementation Method 2
One or more of the plurality of weight members may include a magnet
Data Source
AI summary
The disclosure relates to a touch pen capable of being used in electronic devices. The touch pen includes a pen body having an accommodation space extending in a longitudinal direction, a pen tip coupled to one end of the pen body, a plurality of weight members disposed inside the accommodation space of the pen body, and a buffer material disposed between adjacent weight members among the plurality of weight members to prevent movement of the plurality of weight members in the longitudinal direction.