Screen Holder Brake Module for Step-Free Vertical Positioning
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Solution Overview
Problem
Existing screen positioning systems require manual operation to overcome friction and weight, leading to cumbersome and imprecise adjustments, and often fail to achieve optimal ergonomic settings due to inconvenient mechanisms that require two-handed operation or rear adjustments.
Innovation Solution
A braking system with an elongated base and wheels that utilize gear ratios and friction brakes to enable step-free, self-acting vertical adjustments, allowing the screen to be positioned easily and precisely without manual operation, using the screen's weight to facilitate upward movement and friction to secure the position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If friction brakes and gear mechanisms are used to hold screen position, then position stability is improved, but adjustment ease deteriorates due to resistance that must be overcome
Solution Approach 1:
The braking system dynamically switches between two states: a braking state where friction brakes engage with the wheels to hold position, and a free-state where brakes disengage to allow effortless adjustment. This dynamic transition resolves the contradiction by providing both stability during positioning and ease during adjustment.
Solution Approach 2:
The system changes the friction parameter dynamically - high friction when brakes are engaged for position holding, low friction when brakes are disengaged for easy adjustment. This parameter change allows the system to satisfy both contradictory requirements at different operational phases.
2Reliability
If manual operation is required to overcome weight and friction for positioning, then position holding capability is improved, but operation complexity increases
Solution Approach 1:
The system uses the screen's own weight to drive the adjustment mechanism through gravity-powered wheel rotation, eliminating the need for manual force to overcome weight. The brakes automatically engage to hold position, making the system self-sufficient and reducing operational complexity.
Solution Approach 2:
The invention replaces manual mechanical effort with a gravity-based mechanical system where the screen's weight becomes the driving force, substituted against traditional friction-based resistance mechanisms.
3Stability of the object's composition
If friction resistance is increased to maintain screen position, then position stability is improved, but adjustment precision deteriorates
Solution Approach 1:
The system dynamically controls friction levels - high friction when brakes are engaged for stability, minimal friction when brakes are disengaged for precise adjustment. This temporal separation of friction levels resolves the contradiction between stability and precision.
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 effortless, precise, and ergonomic screen positioning without the need for manual operation, ensuring optimal workspace setup with minimal resistance in both upward and downward directions, maintaining the screen's position through self-acting mechanisms.
Implementation Method 1
a friction brake adapted to be able to brake the second wheel, wherein the friction brake is adapted to be able to prevent movement of the second wheel from a first outer position to a second outer position
Implementation Method 2
the adjusting force to be overcome upwards primarily consists of the weight of the screen/display
Data Source
AI summary
A braking system for holding a screen, wherein either on the holder or the screen an elongate base is provided, the elongated base in contact with a first wheel mounted on the second one of the holder or the screen, so that when the base is moved relative to the first wheel, the first wheel is rotated, and a brake module including a second wheel and a third wheel, the first wheel always being in contact with either the second wheel or the third wheel, wherein the second wheel contacts with an adjustable friction brake, and the brake module being rotatable relative to either the screen or the holder, wherein the second wheel can be adjusted to be in contact with the first wheel, to a position not in contact with the first wheel, but instead the third wheel being in contact with the first wheel or vice versa.