Display Stand Interlock to Prevent Screen Descent During Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices lack a safe and efficient mechanism to prevent the display unit from descending when the fastening bolts are removed, particularly when the unit is raised off the floor, which can lead to safety hazards during height adjustments.
Innovation Solution
The display device incorporates a regulating mechanism with a projection and recess system that secures the display unit to the stand, ensuring it remains stable and prevents descent even if the fastening bolts are erroneously removed, by fitting a projection into a recess, thus enhancing safety during height adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display unit is made detachable from the stand for height adjustment, then the ease of operation is improved, but the reliability deteriorates because the display unit may descend or fall when fastening bolts are removed
Solution Approach 1:
The patent applies preliminary anti-action by incorporating a regulating mechanism with projection and recess that prevents the display unit from descending before the fastening bolts are fully removed. The projection fits into the recess to create a mechanical interlock that opposes the downward force of gravity on the display unit, thereby preventing accidental descent during the adjustment process
Solution Approach 2:
The regulating mechanism is installed in advance on the stand structure, creating a preliminary safety feature that is already in place before any adjustment operation begins. This preliminary action ensures that even if bolts are removed, the display unit remains supported by the projection-recess mechanism until properly repositioned
2Reliability
If a regulating mechanism with projection and recess is added to prevent descent, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The regulating mechanism is segmented into distinct projection and recess components that can be independently manufactured and assembled. The projection is formed on one component (either the stand or adjusting mechanism) while the recess is formed on the other, allowing for modular production and simplifying the manufacturing process despite adding functionality
Solution Approach 2:
Instead of adding complex locking mechanisms or multiple fastening systems, the patent uses a simple inversion approach: a protruding projection on one component fits into a corresponding recess on the other component. This inverted thinking creates an effective safety mechanism using basic geometric forms rather than complex mechanical systems
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided is a display device that provides improved safety. The display device includes a display unit having a panel-shape, a stand supporting the display unit, an adjusting mechanism being attached to the display unit and enabling the display unit to move up and down relative to the stand and turn around the stand, a first fastening member fastening the adjusting mechanism to the stand, and a regulating mechanism regulating the display unit from descending relative to the stand when the first fastening member is removed. The regulating mechanism includes a projection being formed on one of the stand and the adjusting mechanism, and a recess being formed in the other of the stand and the adjusting mechanism and being fitted onto the projection.