Display Rotation Mechanism With Shifting Pivot and Torque Balance
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Solution Overview
Problem
Conventional display supports for large format computing devices face challenges in smoothly transitioning between landscape and portrait orientations due to cumbersome adjustments, potential hazards, and interference with pass-through cables, resulting in an inconsistent user experience.
Innovation Solution
A connection mechanism that enables a display to rotate and translate relative to a support surface, utilizing a dynamic center of rotation and counterbalancing springs to match gravitational torque with spring torque, reducing net torque and minimizing cable interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional display support with fixed center of rotation is used, then the structure is simple, but the cable interference increases and the rotation smoothness deteriorates
Solution Approach 1:
The patent implements a dynamic center of rotation mechanism where the center of rotation shifts position during the rotation process. The connection mechanism includes a moving component that allows the display to rotate around different pivot points at different stages of rotation, rather than a fixed pivot point. This dynamic adjustment reduces cable interference and improves rotation smoothness by adapting the rotation path to the cable layout and gravitational forces.
2Object-affected harmful factors
If a connection mechanism with shifting center of rotation is implemented, then the cable interference is reduced, but the device complexity increases
Solution Approach 1:
The patent incorporates counterbalancing springs that provide a counterbalancing force to offset the gravitational torque on the display during rotation. The springs are configured to apply force at strategic points to create a counterbalancing moment that compensates for the weight of the display, making the rotation smoother and reducing the effort required to change orientations. This counterbalancing mechanism works in conjunction with the shifting center of rotation to achieve smooth rotation while managing the increased structural complexity.
3Ease of operation
If counterbalancing springs are added to match gravitational torque, then the rotation smoothness is improved, but the device complexity increases
Solution Approach 1:
The patent carefully optimizes the spring parameters including spring constant, pre-load, and attachment point positions to achieve the desired counterbalancing effect. By adjusting these parameters, the system achieves smooth rotation with minimal user effort. The spring configuration is designed to provide the necessary counterbalancing force throughout the rotation range, with the spring force and leverage arm length being tuned to match the gravitational torque profile of the specific display model.
4Ease of operation
If the center of rotation is shifted during rotation, then the gravitational torque is better balanced, but the manufacturing precision requirements increase
Solution Approach 1:
The connection mechanism employs a dynamic center of rotation design where the pivot point shifts position during rotation through a carefully designed mechanical path. The mechanism includes guide rails, cam surfaces, or linkage geometry that automatically shifts the rotation center as the display moves through different angles. This dynamic approach allows the system to achieve better torque balancing without requiring extremely tight manufacturing tolerances on fixed pivot points, as the shifting mechanism itself accommodates normal manufacturing variations.
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
The solution provides a balanced and weightless feel during rotation, ensuring a consistent user experience by closely matching gravitational and spring torques, thus enhancing usability and reducing mechanical interference.
Implementation Method 1
a set of springs to provide a spring torque that counterbalances a gravitational torque exerted by the display
Implementation Method 2
a set of springs to provide a spring torque that counterbalances a gravitational torque exerted by the display
Data Source
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AI summary
A device for supporting an electronic display includes a support surface, a display mount configured to be coupled to a display, and a connection mechanism to connect the display mount to the support surface. The connection mechanism is configured to enable a rotation of the display mount between a first position and a second position. The device also includes a set of springs to provide a spring torque that counterbalances a gravitational torque exerted by the display. The connection mechanism causes a translation of the center point of the display relative to the support surface in concert with the rotation. The connection mechanism also causes the center of rotation of the display to shift during the rotation.