Display Screen Device Height-Adjustable Braking Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current interactive display screen devices lack adequate safety measures to prevent unwanted movement and falling, especially when in higher positions, which can compromise stability and user safety.
Innovation Solution
Incorporating braking means that lock the wheel elements unless the display screen unit is in the low position, combined with drive and position-setting mechanisms for ergonomic height adjustment, ensuring the device is only movable and stable when in the low position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display screen device is made movable with wheel elements for moving between rooms, then the ease of operation is improved, but the stability and safety deteriorate due to risk of unwanted movement and falling
Solution Approach 1:
The braking means are configured to automatically activate when the display screen unit reaches a predetermined high position, preventing movement before instability can occur. This preliminary safety action ensures the device cannot be accidentally moved from unstable positions without user intent.
Solution Approach 2:
The system continuously monitors the vertical position of the display screen unit and provides feedback control to the braking means. When the unit reaches the predetermined high position, the braking means receive feedback signals and automatically activate to lock the wheel elements, creating a closed-loop safety mechanism.
2Reliability
If braking means are added to prevent movement in high positions, then the safety is improved, but the device complexity increases
Solution Approach 1:
The braking means are designed to activate automatically based on the position of the display screen unit itself, without requiring external control systems or additional sensors. The device self-regulates its own safety by using its vertical position as the trigger mechanism for brake activation.
Solution Approach 2:
The braking function is integrated with the existing height adjustment mechanism of the display screen device. The same mechanical structure that enables height adjustment also triggers the braking action, combining two functions into a unified system that reduces overall complexity.
3Ease of operation
If the display screen unit is made height-adjustable for ergonomic positioning, then the ease of operation is improved, but the stability deteriorates due to higher centre of gravity
Solution Approach 1:
The braking means prevent movement before the device can reach an unstable high position accidentally. By activating at a predetermined position below the maximum height, the system ensures intentional movement only, maintaining stability by preventing unintended shifts at elevated positions.
Solution Approach 2:
The system uses feedback from the display screen unit's vertical position to control brake activation. This closed-loop control ensures the device transitions smoothly between heights with precise control, maintaining stability by automatically locking at appropriate positions based on real-time position feedback.
Data Source
Figure 1a~2b
Figure 3a~4b
Figure 5a~6
AI summary
The invention relates to a display screen device, comprising a frame with a foot unit and a multiplicity of wheel elements connected thereto, wherein the display screen device is movable in a rolling manner. The display screen device comprises a display screen unit connected to the frame with display screen reproduction means. The display screen unit is height-adjustable in relation to the foot unit between a first, lower position and a second, higher position. The display screen device furthermore comprises braking means for braking one or more of the multiplicity of wheel elements. According to the present invention, the braking means are configured so that the one or more of the multiplicity of wheel elements is released only if the display screen unit is near or in the first, low position. The display screen device is thus movable only if the display screen unit is near or in the first, low position.