Monitor Support Arm Torque Balance Mechanism
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Solution Overview
Problem
Existing monitor support systems are complex, expensive, and unsightly due to the need for multiple pivot mechanisms and additional links, which complicate torque management as the monitor moves, leading to inefficiencies in supporting the load's weight.
Innovation Solution
A single mechanism with a proximal force transmission link pivot displaced from the vertical line through the support arm pivot, combined with a slider element and compression spring, allows for a more symmetrical variation in supporting torque that matches the load weight torque, eliminating the need for a second visible link and reducing bulkiness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a second separate pivot mechanism is used to allow adjustment about a vertical axis, then the monitor can be adjusted in more directions, but the device complexity increases and more parts are required
Solution Approach 1:
The patent combines the vertical axis pivot and horizontal arcuate pivot into a single integrated pivot mechanism. The pivot assembly includes a vertical rod defining both the vertical pivot axis and serving as the center for the horizontal arcuate connection, eliminating the need for separate pivot structures while maintaining full 3D adjustment capability
Solution Approach 2:
The single pivot mechanism serves multiple functions: it acts as both the vertical rotation axis and the center point for horizontal arcuate movement. The arcuate connector pivots about the vertical rod while also enabling horizontal movement, making the pivot assembly a multi-functional element that replaces what would traditionally require separate mechanisms
2Stability of the object's composition
If a parallelogram four-bar linkage is used to keep the monitor in the same plane, then the monitor orientation is maintained, but a second visible link is required which is unsightly
Solution Approach 1:
The patent removes the second parallel link from the visible exterior of the support arm. The linkage mechanism is extracted and relocated inside the support arm structure, where it is hidden from view. The external surface remains smooth and uninterrupted, eliminating the unsightly appearance of external linkage components while maintaining the parallelogram mechanism's function of keeping the monitor in the same plane
3Stability of the object's composition
If a large deep casing is used to house the parallelogram linkage, then the monitor remains in the same plane, but the support arm becomes bulky and unsightly
Solution Approach 1:
The patent nests the parallelogram linkage mechanism inside the support arm structure. The linkage components are positioned within the internal volume of the support arm, utilizing the existing structural space. This nesting approach eliminates the need for external casings or enlarged housing while maintaining the functional integrity of the plane-keeping mechanism
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
This solution provides a more aesthetically pleasing, compact, and cost-effective support system that effectively manages varying torque as the monitor moves, maintaining the load in the same plane and opposing torque variations with improved precision.
Implementation Method 1
a force generating member within or alongside the support arm, wherein the force generating member is a spring for applying a force to the slider element which acts against the proximal end of the slider element
Implementation Method 2
providing a torque about the proximal support arm pivot to oppose the torque about the proximal support arm pivot arising from a load on the mount
Implementation Method 3
The slider element is moveable along the longitudinal axis of the support arm (without a component of movement orthogonal or perpendicular thereto)
Data Source
AI summary
A support arm system for a load such as a display device. The system includes a support arm rotatable at its proximal end about a mid joint axis, monitor supporting head at the distal end of the support arm has an internal slider element and compression spring, and an arrangement of links and pivots which create a torque to oppose the torque created by a load on the head and keep a monitor plate in the same viewing plane relative to the vertical as the arm moves through its range of movement.