Pivot Assembly Gear Mechanism for Display Stability
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Solution Overview
Problem
Notebook computers often experience the display falling over due to a deviation in the center of gravity when opened, causing inconvenience in use.
Innovation Solution
A pivot assembly comprising a container, first gear, second gear, and third gear is integrated into the electronic device, allowing the container to rotate within a groove, shifting the center of gravity forward when the display is opened, thereby preventing the display from falling over.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display is opened relative to the host, then the display can be used, but the display falls over due to center of gravity deviation
Solution Approach 1:
The pivot assembly functions as a counterweight mechanism that compensates for the display's center of gravity deviation. When the display is opened, the pivot assembly adjusts the center of gravity position to maintain balance, preventing the display from falling over while keeping it usable.
Solution Approach 2:
The pivot assembly performs preliminary adjustment of the center of gravity before the display can fall over. By anticipating the instability issue, the mechanism proactively repositions components to maintain balance during the display opening operation.
2Stability of the object's composition
If a pivot assembly with gears is added to prevent display falling, then display stability is improved, but device complexity increases
Solution Approach 1:
The pivot assembly merges multiple functions into a single integrated structure. The container, three gears, and pivot connection are combined into one compact assembly that achieves center of gravity adjustment without requiring separate mechanisms, thereby limiting the increase in device complexity.
Solution Approach 2:
The pivot assembly uses a nested gear structure where the second gear is disposed inside the container and engages with the first gear, while the third gear is also inside and engages with the second gear. This nested arrangement compactly packs the gear mechanism within the groove space, minimizing additional device complexity.
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 design enhances the stability and convenience of using the electronic device by maintaining balance and preventing the display from falling, ensuring smooth operation when the device is in an open state.
Implementation Method 1
the container rotates in the groove by using the first gear as a fulcrum
Implementation Method 2
the second body rotates and drives the second gear to rotate through the third gear
Data Source
AI summary
An electronic device includes a first body, a pivot assembly and a second body. The first body includes a first side and a second side, and the second side includes a groove. The pivot assembly includes a container, a first gear, a second gear and a third gear. The container includes an accommodating space and a side wall. The first gear is disposed in the accommodating space and connected to the groove. The second gear is disposed in the accommodating space, pivotally disposed at the side wall and engaged with the first gear. The third gear is disposed in the accommodating space, pivotally disposed at the side wall and engaged with the second gear. The second body is pivotally disposed at the container and connected to the third gear.