Offset Pivot Slide Mechanism for Mobile Display Transition
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Solution Overview
Problem
Electronic mobile devices face challenges in transitioning directly from a compact to a landscape viewing configuration, as this motion often obscures part of the key assembly and can result in an uncomfortable device orientation, requiring an intermediate slide configuration before pivoting, which is time-consuming.
Innovation Solution
The implementation of a slide and offset pivot mechanism that allows the movable housing to move directly from a compact to a landscape configuration, with a pivot axis offset from both the longitudinal and transverse planes, enabling the display to remain fully visible and providing a balanced, comfortable holding position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the display moves directly from compact to landscape configuration, then the transition speed is improved, but the key assembly becomes obscured and the device becomes uncomfortable to hold
Solution Approach 1:
The patent applies asymmetry by offsetting the pivot axis from the center of the display, positioning it closer to one edge. This asymmetric pivot point enables the display to rotate in a trajectory that maintains visibility of the key assembly while achieving landscape orientation, resolving the contradiction between fast transition and operational comfort
Solution Approach 2:
The patent introduces a third dimension to the rotation motion by combining pivoting with sliding movement. The display both rotates and translates along the longitudinal axis, creating a compound motion path that avoids obscuring the key assembly while maintaining quick transition capability
2Ease of operation
If the display is slid to an intermediate configuration before pivoting, then the key assembly remains visible, but the transition time increases
Solution Approach 1:
The patent merges the sliding and pivoting motions into a single integrated action. The display simultaneously translates along the longitudinal axis and rotates about the offset pivot axis, combining what were previously sequential operations into one unified motion that maintains key visibility while reducing transition time
Solution Approach 2:
The offset pivot axis is pre-positioned to facilitate the combined motion trajectory. This preliminary geometric arrangement ensures that as the display moves, the key assembly naturally remains visible without requiring separate adjustment steps, enabling direct transition from compact to landscape mode
Data Source
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AI summary
An electronic mobile device comprises a base housing and a movable housing movably supported by the base housing. The movable housing includes a user interface device, and the user interface device defines an interface plane, a longitudinal plane substantially perpendicular to the interface plane and bisecting the user interface device, and a transverse plane substantially perpendicular to the interface plane and the longitudinal plane and bisecting the user interface device. The movable housing is operable in a first operating configuration, and the movable housing is translatable relative to the base housing along the longitudinal plane to move to and from a second operating configuration. The movable housing is also pivotable relative to the base housing about a pivot axis to move to and from a third operating configuration. The pivot axis is offset from and substantially parallel to both the longitudinal plane and the transverse plane.