Pivot Shaft Structure for Flexible Screen Virtual Axis Rotation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pivot shaft devices for electronic apparatuses with flexible screens are complex to manufacture and assemble, have large assembling tolerance, high costs, and occupy excessive space, failing to efficiently provide operation space for the bent section of the flexible screen.
Innovation Solution
A pivot shaft structure moving around a virtual axis, featuring a main body with arched rails and operation boards with arched arm sections that reciprocally move along these rails to minimize space and simplify assembly, allowing for a compact and aesthetically pleasing design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional dual-shaft mechanism with multiple gears and link plates is used to enable flexible screen operation, then the display module can rotate and open/close in multiple modes, but the structure becomes complicated and occupies excessive space
Solution Approach 1:
The patent merges the functions of multiple gears and link plates into a single integrated pivot shaft structure. The pivot shaft directly connects the display module and apparatus body module, eliminating the need for separate transmission components while maintaining the ability to achieve multiple operation modes through its own rotational and translational capabilities.
Solution Approach 2:
The pivot shaft serves multiple functions simultaneously: it acts as a rotational joint, a translational guide, and a structural support. This multi-functional design replaces the conventional dual-shaft mechanism with multiple specialized components, reducing overall structural complexity while preserving operational versatility.
2Adaptability or versatility
If conventional dual-shaft assembly with gears and link plates is used to provide bending operation space, then the flexible screen can be operated, but the assembling tolerance becomes large and manufacturing becomes troublesome
Solution Approach 1:
The patent combines the guiding and supporting functions into the pivot shaft structure itself. The arc-shaped rail and groove are integrated features of the pivot shaft assembly, eliminating the need for separate guiding components and reducing the cumulative tolerance errors that would result from assembling multiple precision parts.
3Adaptability or versatility
If conventional pivot shaft device with multiple components is used to support flexible screen, then the screen can be operated, but the components occupy larger volume and increase cost
Solution Approach 1:
The patent merges multiple discrete components (gears, link plates, guiding blocks) into a single integrated pivot shaft assembly. This consolidation dramatically reduces the total volume occupied by moving parts while maintaining all necessary functions for flexible screen operation.
Solution Approach 2:
The pivot shaft structure employs a nested arrangement where the arc-shaped rail and groove are positioned within the overall pivot shaft assembly. This nested configuration maximizes space efficiency by placing functional features within the bounds of the main structural component rather than requiring separate external elements.
Data Source
AI summary
The pivot shaft structure moving around virtual axis includes an assembly of a main body, a first operation board and a second operation board disposed on the main body. The first operation board has an arm section. The second operation board has an arm section. The arm sections of the first and second operation boards are respectively received in a first arched rail and a second arched rail of the main body. The first and second arched rails are arched and disposed around a virtual axis. When a user operates the first operation board or the second operation board to move, the first operation board or the arm section thereof and the second operation board or the arm section thereof respectively synchronously move around the virtual axis along the first and second arched rails toward each other to achieve opening/closing effect.