Pivot Pin Device With Eccentric Rocking Arm
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Solution Overview
Problem
Conventional pivot pin devices often result in damage to displays due to negligence, as they do not prevent the display from hitting hard objects when rotated, due to their structural design and operation limitations.
Innovation Solution
A pivot pin device with a fixing shaft, eccentric shaft, rocking arm, and subsidiary shaft that allows for a height/position change, incorporating a slot for the fixing shaft and guide slots for the subsidiary shaft, enabling the display to automatically lift and maintain a safety distance from hard objects during rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display is pivotally mounted to rotate freely under external force, then the operation flexibility is improved, but the display is prone to hit hard objects causing damage
Solution Approach 1:
The patent applies preliminary anti-action by designing a mechanical stopper structure that prevents the display from rotating beyond a predetermined angle. The stopper comprises a stopper arm and a stopper block that engage before the display can hit hard objects, thereby counteracting the harmful effect in advance while preserving rotation flexibility within safe limits
2Device complexity
If a conventional pivot pin structure is used, then the structural simplicity is maintained, but the protection function against display damage is insufficient
Solution Approach 1:
The patent segments the pivot pin structure into distinct functional components: a pivot pin body, a stopper arm, and a stopper block. This segmentation allows each component to perform its specific function while maintaining overall structural simplicity. The stopper arm is separated from the pivot pin body, enabling independent operation of the protection mechanism
3Adaptability or versatility
If the display is allowed to rotate at least 180 degrees, then the viewing flexibility is improved, but the risk of negligence-induced damage increases
Solution Approach 1:
The patent applies dynamics by designing a stopper arm that can dynamically adjust its position based on the rotation angle of the display. The stopper arm rotates together with the display but maintains a fixed relative position through the stopper block engagement, allowing flexible viewing within limits while automatically preventing excessive rotation that could cause damage
Data Source
AI summary
A pivot pin device provides a protection system. In operation/rotation, the pivot pin device achieves a height/position change effect. The pivot pin device includes a first component, a fixing shaft disposed on the first component and a second component assembled with the fixing shaft. The second component is formed with a slot for assembling with the fixing shaft. The fixing shaft is assembled with a rocking arm. A first head end of the rocking arm is pivotally connected with an eccentric shaft. A second head end of the rocking arm is pivotally connected with a subsidiary shaft assembled on the second component. When the slot of the second component is rotated around the fixing shaft to an opened position, the subsidiary shaft drives the rocking arm to swing with the eccentric shaft as a fulcrum, whereby a height/position change is achieved between the first and second components.