Display Support Arm and Hinge for Viewing-to-Writing Rotation
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Solution Overview
Problem
All-in-one information handling systems face challenges in adapting between viewing and writing orientations, with existing systems offering insufficient support and awkward movement, particularly in transitioning from vertical to horizontal positions for touch and stylus inputs.
Innovation Solution
A three-cylinder hinge arrangement with a synchronized support arm allows the display to rotate between vertical and horizontal orientations, providing stable support and adjustable angles through a gear mechanism and biasing springs, enabling robust support during writing and convenient user interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a kickstand is used to hold the display in vertical viewing orientation, then the display can be viewed at proper angle, but the system lacks stable support for horizontal writing orientation
Solution Approach 1:
The support arm is designed to be dynamically reconfigurable between vertical viewing support and horizontal writing support through a three-cylinder hinge mechanism. The arm can rotate and adjust its position to provide stable support in both orientations, eliminating the need for separate kickstand and writing surface configurations.
Solution Approach 2:
The support arm serves multiple functions: it holds the display in vertical viewing orientation, transitions to horizontal orientation for writing, and provides stable support in both positions. This multi-functional design replaces the need for separate kickstand and writing surface mechanisms.
2Adaptability or versatility
If a hinge mechanism is used to adjust display viewing position, then the display can transition between vertical and horizontal orientations, but the movement becomes awkward and lacks steady support
Solution Approach 1:
The support arm is divided into multiple segments connected by three cylindrical hinges, allowing independent rotation at each joint. This segmentation enables smooth, controlled transitions between orientations while maintaining stability at each position. The multi-joint design provides degrees of freedom for awkward movements to be resolved into smooth sequential rotations.
3Adaptability or versatility
If the display is integrated in a portable housing, then the system supports mobile operations, but the display size is reduced and requires precise touch inputs
Solution Approach 1:
The support arm enables the display to dynamically adjust its size and orientation based on usage context. In portable mode, the display maintains its integrated small size for mobility. When placed on a surface, the display can be positioned horizontally at larger effective size, and the support arm provides stable positioning that enhances touch and stylus input precision.
Data Source
AI summary
An all-in-one information handling system holds a display in a raised forward position with a support arm rotationally coupled at a rear side of the information handling system housing and a central location of the display. Gear arms integrated in the support arm engage a gear at the display and gear mechanism at the housing to synchronize rotation of the display from the forward and raised vertical position relative to the housing to a central and lower horizontal position by lowering the support arm to a horizontal position supported by the housing upper surface as the display rotates to the horizontal position.