Notebook Hinge Structure with Guiding Slots for Stable Flipping
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Solution Overview
Problem
The existing hinge structures for notebook computers fail to smoothly flip the display over to the rear side of the base, leading to potential unexpected motions and instability during usage transitions.
Innovation Solution
A hinge structure comprising two parallel shafts, a sliding component with guiding slots, and pillars that allow synchronous rotation, preventing unexpected motions by ensuring smooth flipping between the front and rear sides, with the first shaft's rotation driving the sliding component to slide and the second shaft to rotate synchronously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single shaft hinge structure is used, then the device complexity is reduced, but the stability and smoothness of display flipping deteriorates
Solution Approach 1:
The hinge structure is segmented into two independent shafts (first shaft and second shaft) that rotate synchronously. Each shaft has its own sliding component with guiding slots, allowing the system to achieve stable display flipping while maintaining manageable complexity through modular design.
2Ease of operation
If the display flipping motion is unrestricted, then the ease of operation is improved, but unexpected motions and instability occur
Solution Approach 1:
The sliding component acts as an intermediary mechanism between the two shafts. It contains guiding slots that constrain and guide the motion of the pillars, ensuring that the shafts rotate synchronously in a controlled manner while maintaining ease of operation. The guiding slots prevent unexpected motions by mediating the interaction between the shafts.
Solution Approach 2:
The guiding slots are designed with asymmetric geometries that match the specific motion requirements of the hinge. The first guiding slot and second guiding slot have different configurations adapted to their respective shafts, enabling precise control of the rotation path and preventing instability while maintaining smooth operation.
3Ease of manufacture
If the first shaft and second shaft rotate independently, then the ease of manufacture is improved, but the display flipping smoothness deteriorates
Solution Approach 1:
The two shafts are merged through the sliding component that connects them. The guiding slots in the sliding component ensure that the first shaft and second shaft rotate synchronously, combining their individual rotations into a coordinated motion that produces smooth display flipping while maintaining the simplicity of manufacturing each shaft independently.
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
Enables smooth flipping of the display between the front and rear sides of the base, maintaining structural stability and aesthetics by preventing unexpected motions and allowing a 180-degree expansion, enhancing the usability and design of notebook computers.
Implementation Method 1
The first sliding portion is slidably disposed on the first shaft along an axial direction of the first shaft, and the second sliding portion is slidably disposed on the second shaft along an axial direction of the second shaft
Data Source
AI summary
A hinge structure includes a first shaft, a second shaft, a sliding component, a first pillar, and a second pillar. The second shaft is parallel to the first shaft. The sliding component includes a first sliding portion and a second sliding portion, wherein the first shaft and the second shaft are disposed through the first sliding portion and the second sliding portion respectively, and the first sliding portion has a first guiding slot and the second sliding portion has a second guiding slot. When the first shaft rotates with respect to the sliding component and moves the first pillar along the first guiding slot, the first pillar drives the sliding component to slide along the first and second shafts and move the second pillar along the second guiding slot, so as to drive the second shaft to rotate with respect to the sliding component.