Synchronized Hinge Module Without Intermediate Gear Tolerance
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Solution Overview
Problem
Conventional synchronized hinge mechanisms for flexible screens face synchronization issues due to increased tooth spacing tolerance caused by additional transmission gears, leading to potential loss of synchronization between rotating platforms when transitioning between open and closed positions.
Innovation Solution
A hinge synchronization module comprising a base unit and two symmetrical hinge units with gear members and rotating platforms, where the gear members mesh and are connected via a slidable rod and pivotally connected members, allowing synchronous pivoting without the need for additional gears, thereby eliminating tooth spacing tolerance accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If more transmission gears are added between rotating axles to increase space for flexible screen bending, then the flexible screen can bend without cracking, but tooth spacing tolerance accumulates and synchronization is lost
Solution Approach 1:
The patent removes the intermediate transmission gears from the system and directly connects the rotating axles. This extraction eliminates the source of tolerance accumulation while maintaining sufficient bending space through direct mechanical coupling and optimized axle positioning, thereby preserving synchronization precision while ensuring flexible screen reliability
Solution Approach 2:
The patent merges the functions of multiple transmission gears into a direct connection between rotating axles. By combining the space-providing function and the synchronization function into a single direct coupling mechanism, the system achieves both adequate bending space and precise synchronization without tolerance accumulation
2Reliability
If additional transmission gears are used to synchronize rotating platforms, then the rotating platforms can be synchronized, but the device complexity increases
Solution Approach 1:
The patent extracts and removes the complex transmission gear system, replacing it with a simple direct connection between rotating axles. This simplification maintains synchronization reliability through direct mechanical coupling while dramatically reducing device complexity by eliminating multiple gear components and their associated tolerances
Solution Approach 2:
Instead of using intermediate gears to achieve synchronization, the patent inverts the approach by using direct connection with optimized axle positioning and geometry. This inverted design achieves synchronization through the fundamental mechanical relationship between directly connected axles rather than through complex gear trains
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 ensures synchronized pivoting of rotating platforms between open and closed states without accumulating tooth spacing tolerance, maintaining synchronization while allowing for design flexibility by adjusting the length of connecting members.
Implementation Method 1
The gear members of the hinge units are rotatably connected to the base unit, and mesh with each other
Implementation Method 2
The slidable rod of the rotating platform of the hinge unit is disposed in and slidable along the slide hole
Data Source
AI summary
A hinge synchronization module includes a base unit, and two hinge units. The two hinge units are connected to the base unit, and each of the hinge units has a gear member, a rotating platform, and a connecting member. The gear members of the hinge units mesh with each other. The rotating platform of each hinge unit has a platform body pivotable relative to the base unit. The connecting member of each hinge unit has a gear part mashing with the gear member of the hinge unit, and a slide hole. A slidable rod of the rotating platform of each hinge unit is disposed in and slidable along the slide hole of the connecting member of the hinge unit.