Display Height Adjustment Using Variable Friction Grooves
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Solution Overview
Problem
Existing display apparatuses with height adjustable functions have complex structures due to the need for magnet sets to generate friction forces, requiring complicated adjustment and calibration processes.
Innovation Solution
A display apparatus with a height adjusting device featuring a base, a supporting member with vertical friction grooves, and an elastic member, where the depth of the grooves varies to control the friction forces and maintain the display panel's position using a locking unit and sliders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If magnet sets are used to generate friction forces for height adjustment, then the display panel can be positioned at different heights, but the structure becomes complicated and requires complex adjustment and calibration processes
Solution Approach 1:
The patent removes the magnet sets from the height adjusting device, extracting the problematic component that caused structural complexity and calibration requirements. The friction grooves are formed directly on the support column surface, eliminating the need for separate magnetic friction-generating components while maintaining the height adjustment functionality.
Solution Approach 2:
The patent replaces the magnetic field-based friction system with a mechanical friction system. Instead of using magnetic attraction forces between magnet sets, the invention uses direct contact friction between the slider and the friction grooves on the support column, simplifying the system to pure mechanical interaction.
2Ease of operation
If magnet sets are used to generate friction forces, then height adjustment is achieved, but the adjustment and calibration process becomes complicated
Solution Approach 1:
The patent removes the magnet sets from the height adjusting device, extracting the problematic component that caused structural complexity and calibration requirements. The friction grooves are formed directly on the support column surface, eliminating the need for separate magnetic friction-generating components while maintaining the height adjustment functionality.
Solution Approach 2:
The patent replaces the magnetic field-based friction system with a mechanical friction system. Instead of using magnetic attraction forces between magnet sets, the invention uses direct contact friction between the slider and the friction grooves on the support column, simplifying the system to pure mechanical interaction.
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
Simplifies the structure and adjustment process by using friction grooves and an elastic member to stabilize the display panel at desired heights, reducing complexity and enhancing user control over the display panel's position.
Implementation Method 1
the elastic member is accommodated in the accommodating space of the supporting member, and spans between the locking unit and the base
Implementation Method 2
two generally vertical friction grooves. A depth of one of the friction grooves decreases with increasing height above the base, and a depth of the other friction groove increases with increasing height above the base
Data Source
AI summary
An exemplary a display apparatus (2) includes a display panel (21) and a height adjusting device (25). The height adjusting device includes a base (26), a supporting member (27), a locking unit (30), and an elastic member (28). The display panel is fixed to the locking unit. The supporting member is fixed on the base. The supporting member includes two generally vertical friction grooves (2723, 2725). A depth of one of the friction grooves decreases with increasing height above the base, and a depth of the other friction groove increases with increasing height above the base. The locking unit is accommodated in the supporting member. The locking unit includes two sliders (33, 35) corresponding to the two friction grooves of the supporting member respectively. One of the sliders abuts a corresponding one of the friction grooves. The elastic member spans between the locking unit and the base.