Telescopic Column Dual Linear Drive Height Adjustment
Solution Overview
Problem
Existing flat screen mounting systems lack flexibility and stability, particularly when dealing with large or heavy screens, as they are inflexible and unable to distribute loads effectively, leading to issues with height adjustment and positioning.
Innovation Solution
A telescopic column with at least three movable elements, featuring two linear drives for vertical movement, allowing for targeted load distribution and flexible height adjustment while maintaining static stability, with the option to adjust the column's height quickly and position the screen flexibly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single linear drive is used for height adjustment, then the device complexity is reduced, but the productivity of height adjustment is insufficient
Solution Approach 1:
The height adjustment function is segmented into two independent linear drives: a first linear drive for adjusting the column tube relative to the lower frame, and a second linear drive for adjusting the upper frame relative to the column tube. This segmentation allows each drive to operate independently or simultaneously, enabling flexible control of adjustment speed and range while distributing the mechanical load across multiple components.
Solution Approach 2:
The system dynamically adapts its adjustment characteristics by allowing the two linear drives to operate in different modes: the first linear drive can provide slow, stable adjustment for precision positioning, while the second linear drive can provide fast adjustment for quick height changes. When both drives operate simultaneously, they combine their speeds to achieve rapid overall adjustment, thus dynamically optimizing productivity based on operational needs.
2Adaptability or versatility
If the column tube is made longer to increase deflection range, then the adaptability is improved, but the stability deteriorates due to increased torques and tilting moments
Solution Approach 1:
The column structure is segmented into multiple telescopic elements (column tube and frames) that can extend and contract independently. This segmentation allows the column to achieve a long extended length for high adaptability while maintaining stability in each segment through proper structural design and load distribution mechanisms.
Solution Approach 2:
Different parts of the column structure are designed with different local qualities: the lower frame and upper frame are designed with specific cross-sectional properties to resist torques and tilting moments, while the column tube is designed for smooth longitudinal movement. The linear drives are positioned and sized to provide appropriate local support and control, ensuring that each segment contributes to overall stability while enabling the required deflection range.
3Adaptability or versatility
If wall or ceiling mounts are used for flat screens, then the manufacturing cost is reduced, but the adaptability deteriorates due to fixed positioning requirements
Solution Approach 1:
The mounting system transitions from a static wall or ceiling mount to a dynamic free-standing telescopic column that can be positioned anywhere on the floor and adjusted to any height within its range. The system incorporates movable elements including the telescopic column with multiple extendable segments and adjustable arms that can pivot and rotate, allowing the flat screen to be positioned flexibly in three-dimensional space rather than being fixed to a specific wall or ceiling location.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
The telescopic column (100) has a lower frame (120), an upper frame (140) comprising a fastening unit for a flat panel display (200) and a column tube (160) which is longitudinally displaceably guided within the lower frame and the upper frame. A linear drive (M1) is fastened between the lower frame and the column tube and is adapted to vertically move the column tube relative to lower frame. Another linear drive (M2) is fastened between the upper frame and the column tube and is adapted to vertically move the upper frame relative to column tube. An independent claim is included for a height-adjustable workstation with a table system.