Touch Pad Uniform Load via Segmented Stopping Unit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing touch panel sensor plates experience an uneven load distribution when pushed, leading to uncomfortable user interactions due to varying finger forces required across different positions.
Innovation Solution
An operation accepting apparatus with a moving portion, a stopping unit, and an indication portion is designed, where the moving portion receives a pressing force and is stopped by the stopping unit, and the indication portion ensures the pressing force is applied uniformly across the touch pad by positioning the power point on the inner side of the compression spring's effective range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch panel sensor plate is pushed with a spring buffer, then pushdown operation is enabled, but load increases at the edge of the touch panel
Solution Approach 1:
The patent applies local quality by creating a non-contact region between the indication portion and the spring buffer at the edge areas. This local modification prevents direct contact and force transmission at edges while maintaining normal pushdown functionality in the central region, thereby resolving the edge load increase problem
2Ease of manufacture
If the touch panel structure is simplified, then manufacturing is easier, but uniform load distribution cannot be achieved
Solution Approach 1:
The patent segments the touch panel surface into a contact region and a non-contact region. The indication portion defines this segmentation, creating a designated area where users should apply pressure. This segmentation approach achieves uniform load distribution by preventing edge contact while maintaining overall structural simplicity
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
This configuration achieves a uniform pushdown load over the entire touch pad surface, reducing the need for excessive force at edges and providing a consistent user experience.
Implementation Method 1
a compression spring which receives the pressing force and moves the touch pad in a first direction
Implementation Method 2
a stopper that stops movement of the touch pad in the first direction
Data Source
AI summary
An operation accepting apparatus includes a moving portion that has a region to receive a pressing force by a pressing operation of a user and moves in a first direction after receiving the pressing force, a biasing portion that biases the moving portion in a second direction, which is a direction opposite to the first direction, an abutting portion that stops movement of the moving portion in the first direction by abutting the moving portion while the moving portion receives the pressing force, and an indication portion that indicates the region to the user so that the pressing force is not received in a position overlapping with the abutting portion when viewed from the first direction.