Helical Gear Hinge Device Torque Stabilization
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Solution Overview
Problem
Existing hinge devices generate insufficient torque, causing plates to return to a predetermined position with insufficient rotation, which limits their usability in supporting tablets at desired angles.
Innovation Solution
A hinge device incorporating helical gear and torque sheet sets, including a first and second shaft, connecting plates, and friction sheets to generate relative interference torque, stabilizing rotation and enhancing the torque output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a torsion structure is used to enable relative rotation of plates, then the hinge device can achieve opening and closing motion, but the torque generated at the tail end of the pivot is insufficient
Solution Approach 1:
The torque transmission system is segmented into multiple stages: first torque sheets connected to the first shaft, second torque sheets connected to the second shaft, and friction sheets positioned between the torque sheets and connecting plates. This segmentation allows torque to be generated and transmitted through multiple intermediate elements, accumulating sufficient torque at the output while maintaining rotational capability.
Solution Approach 2:
Friction sheets are introduced as intermediary elements between the torque sheets and connecting plates. These friction sheets transmit torque through friction forces, acting as mediators that amplify the torque output while allowing controlled relative motion. The friction-based transmission enables sufficient torque generation without compromising the rotational functionality.
2Stability of the object's composition
If torque sheet sets with different torque sheets are used to generate relative interference torque, then the rotation of the hinge device is stabilized, but the device complexity increases
Solution Approach 1:
Multiple torque sheets with different torque values are merged into a single torque set assembly, where the first torque sheets and second torque sheets are positioned adjacent to each other and connected to the respective shafts. The friction sheets are merged between the torque sheets and connecting plates, creating an integrated torque generation system that stabilizes rotation while managing structural complexity through consolidation.
Solution Approach 2:
The torque sheets are designed with different torque parameters (different torque values) to generate relative interference torque. By varying the torque parameters of the sheets within the same assembly, the system achieves rotation stability through controlled interference without requiring fundamentally different structural components, thus managing complexity through parameter variation rather than structural divergence.
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 provides a stable and adjustable torque output, allowing the hinge device to maintain the desired position of tablets, enhancing user convenience and functionality.
Implementation Method 1
The friction sheets are disposed between the second connecting plater and the third connecting plate and generating friction force to increase torque
Data Source
AI summary
A pivoting device having helical gear includes a first shaft and a second shaft, wherein the first shaft has a first rod, the first rod has a first axial gear, and the second shaft has a second rod, the second rod has a second axial gear. A first connecting plate is connected between the first shaft and the second shaft, and a connecting gear set is arranged between the first shaft and the second shaft, the connecting gear set meshes with the first axial gear and the second axial gear. One end of the connecting gear set is connected to the first connecting plate, and the other end of the connecting gear set is connected a second connecting plate. The first torque set is connected between the first shaft and the second shaft. A third connecting plate is connected between the first shaft and the second shaft.