Lateral Pressure Sensing Pointer with Radial Elastic Mechanism
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Solution Overview
Problem
Conventional stylus-type pointers lack the capability to sense lateral pressure, limiting their functionality and precision in diverse digital operations on touch panels.
Innovation Solution
A lateral pressure sensing pointer is designed with a housing, cartridge, lateral key, first and second elastic members, and a pressure sensing element, allowing for pressure sensing in the radial direction and enabling intuitive lateral operation, converting pressure into digital marks for display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional stylus-type pointers are used, then the device structure remains simple, but the capability to sense lateral pressure is lost, limiting functionality and precision
Solution Approach 1:
The pointer is segmented into functional modules: housing, cartridge, lateral key, elastic members, and pressure sensing element. This segmentation allows the complex pressure sensing function to be integrated into a modular structure, where each component has a specific role, thereby achieving lateral pressure sensing without overwhelming structural complexity
Solution Approach 2:
The pressure sensing element is nested within the housing, and the elastic members are positioned between the lateral key and the pressure sensing element. This nested arrangement allows multiple functional components to be compactly integrated, enabling lateral pressure sensing capability while maintaining a relatively compact and manageable device structure
2Adaptability or versatility
If lateral pressure sensing capability is added to the pointer, then operational precision and functionality are improved, but the device structure becomes more complex
Solution Approach 1:
The pointer is designed with multi-functionality: the lateral key can be pressed to trigger different operations, and the pressure sensing element can detect varying pressure levels. This allows a single pointer device to perform multiple digital operations (marking, handwriting, selection) with different pressure sensitivities, enhancing adaptability without requiring multiple separate devices
Solution Approach 2:
The elastic members serve as intermediaries between the lateral key and the pressure sensing element. When the lateral key is pressed, the elastic members transmit the lateral force to the pressure sensing element, enabling the sensing function while providing mechanical coupling. This intermediary mechanism allows the integration of sensing capability with minimal structural modification
3Measurement precision
If pressure sensing elements and elastic members are added, then pressure sensitivity is improved, but the housing accommodation space is reduced
Solution Approach 1:
The elastic members are designed as flexible components that can be compressed between the lateral key and the pressure sensing element. This flexibility allows them to occupy minimal space when not under compression, while still providing the necessary mechanical coupling and force transmission, thereby preserving housing accommodation space
Solution Approach 2:
The pressure sensing element is positioned in the axial direction within the housing, while the lateral key operates in the radial direction. This dimensional arrangement allows the pressure sensing function to be integrated along the axial axis, minimizing the radial space required and preserving the housing's radial accommodation capacity
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
Enhances operational convenience and precision by allowing users to perform digital marking and virtual handwriting with pressure sensitivity, supporting various mark styles and improving user comfort through elastic force distribution.
Implementation Method 1
One end of the first elastic member is combined with the inner surface of the lateral key, and the first elastic member can provide an elastic force along a radial direction perpendicular to the axial direction
Implementation Method 2
The second elastic member abuts against the inner surface of the lateral key and can provide an elastic force along the radial direction
Implementation Method 3
The first pressure sensing element is disposed inside the accommodation space and is opposite to the other end of the first elastic member, and the first pressure sensing element can sense a pressure applied along the radial direction
Data Source
AI summary
A lateral pressure sensing pointer includes a housing, a cartridge, a lateral key, a first elastic member, a first pressure sensing element, and a second elastic member. The housing extends a length along an axial direction, and has an end opening, a lateral opening, and an accommodation space. The end opening and the lateral opening are respectively in communication with the accommodation space. The cartridge is disposed at the end opening. The lateral key is disposed at the lateral opening. One end of the first elastic member is combined with the lateral key and can provide an elastic force along a radial direction perpendicular to the axial direction. The first pressure sensing element is disposed inside the accommodation space and can sense a pressure applied along the radial direction. The second elastic member abuts against the lateral key and can provide an elastic force along the radial direction.