Display Base Friction Zones for Desk Edge Fall Prevention
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Solution Overview
Problem
Existing display apparatuses risk falling off desks due to external forces, especially when users forget to operate the advancing and retreating mechanism, and may slip excessively when attempting to move them, leading to potential falls.
Innovation Solution
A display apparatus with a base featuring a friction surface that includes both high and low friction areas, where the low friction surface protrudes further than the high friction surface, allowing for smooth movement on a desk without requiring manual operation to generate friction, and preventing falls by using the high friction surface as a stopper when the display approaches the edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sliding member and stopper with an advancing and retreating mechanism are used to fix the display apparatus to the desk, then the display apparatus can be prevented from falling off, but the device complexity increases and manual operation is required which users may forget
Solution Approach 1:
The patent extracts the complex advancing and retreating mechanism from the base, leaving only simple friction surfaces. The high friction surface and low friction surface are directly formed on the base bottom surface, eliminating the need for sliding members, stoppers, and manual operation mechanisms while maintaining fall prevention functionality.
Solution Approach 2:
The base automatically adjusts its friction characteristics based on its position on the desk. When positioned normally, the low friction surface allows easy movement. When approaching the edge, the high friction surface automatically engages to prevent falling, without requiring any user operation or external control system.
2Ease of operation
If the sliding member protrudes to allow easy movement of the display apparatus, then convenience is improved, but the risk of excessive movement and falling off increases
Solution Approach 1:
The patent applies different friction characteristics to different locations on the base bottom surface. The low friction surface is positioned at the center area for easy movement, while the high friction surface is positioned at the peripheral area near the edges to prevent excessive movement and falling off, creating localized friction zones with different properties.
Solution Approach 2:
The high friction surface is pre-positioned at the peripheral area of the base bottom surface, ready to engage before the display apparatus can fall off. This preliminary anti-action prevents excessive movement by providing increased friction resistance when the base approaches the edge of the desk.
3Reliability
If a manual operation mechanism is used to generate friction force, then friction can be controlled, but the ease of operation decreases and user error may occur
Solution Approach 1:
The base automatically provides the appropriate friction force based on its position. The low friction surface and high friction surface are passively engaged depending on whether the base is positioned centrally or near the edge, eliminating the need for user operation while maintaining reliable friction control.
Solution Approach 2:
The patent changes the friction coefficient parameter across different areas of the base bottom surface. By having regions with different friction coefficients (low friction surface and high friction surface), the system automatically adjusts the friction force without requiring manual control, simply by virtue of the base's position on the desk.
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
Enables smooth movement and prevents falls by ensuring either the low or high friction surface contacts the desk, eliminating the need for manual friction generation, thus preventing the display from slipping or falling off, even under external force.
Implementation Method 1
a friction surface having a high friction surface having a relatively high friction coefficient and a low friction surface having a lower friction coefficient than that of the high friction surface
Data Source
AI summary
A display apparatus has a friction surface which makes friction force between a base and a support surface on a lower surface of the base that supports the display body, in which the friction surface has a high friction surface having a relatively high friction coefficient and a low friction surface having a lower friction coefficient than that of the high friction surface, and the low friction surface protrudes further than the high friction surface.