Inward-Folding Screen Motion Mechanism for Interference-Free Sliding
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Solution Overview
Problem
Current inward-folding flexible screen terminals face interference issues due to the inclined groove guide structure and rotation support plates, which hinder smooth folding and flattening, especially when the chassis is slidable.
Innovation Solution
A motion mechanism with synchronous reverse rotation connecting mechanism, gear and rack system, and locking structure is introduced to control rotation speed and angle, allowing for smooth folding and flattening by increasing the sliding distance of the chassis and providing resistance to maintain the folded state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an inclined groove guide structure is used to guide the rotation of the rotation support plate, then the flexible screen can be folded to the bottom of the chassis, but the guide structure and slidable chassis produce interference with the flexible screen
Solution Approach 1:
The patent extracts and removes the inclined groove guide structure that causes interference, replacing it with a synchronous reverse rotation connecting mechanism that eliminates the harmful interaction between the guide structure and flexible screen while maintaining the folding function
Solution Approach 2:
The patent introduces a synchronous reverse rotation connecting mechanism as an intermediary between the left and right support structures, which mediates their motion to achieve coordinated rotation without the interference problems caused by direct inclined groove guidance
2Volume of moving object
If rotation support plates are used on the intermediate support structure, then the flexible screen can be lowered to the bottom of the chassis, but the structure becomes complex and interferes with the flexible screen
Solution Approach 1:
The patent merges the rotation support function into the left and right support structures that rotate synchronously in reverse, eliminating the need for separate rotation support plates on the intermediate support structure and reducing overall structural complexity
Solution Approach 2:
The left and right support structures serve multiple functions: they provide structural support, enable rotation motion, and achieve synchronous reverse rotation through the connecting mechanism, replacing what would otherwise require multiple separate components
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 mechanism enables precise control of rotation and sliding, accommodating the flexible screen effectively while preventing interference, allowing for efficient folding and positioning of the screen terminal.
Implementation Method 1
the first gear and the second gear are in meshed connection with sliding racks on the left support structure and the right support structure respectively
Data Source
AI summary
The present invention provides a motion mechanism applied to an inward-folding flexible screen terminal, comprising an intermediate support structure, left and right support structures, and left and right movable support plates. The intermediate support structure is provided with a synchronous reverse rotation connecting mechanism. The left and right movable support plates are rotatably connected to the left and right support structures at the intermediate support structure, respectively. Rotation of the left and right movable support plates can be directly planned according to the relationship between gears and racks, and the gear indexing circle diameter can be increased in finite space by using virtual center design, so that the racks are driven to generate a larger sliding distance by rotating a small angle, i.e., sliding a chassis to increase the accommodating space of the screen closed state. Moreover, the effect of accurately controlling sliding is also achieved, and designing a certain transmission ratio by means of the principle of gear and rack transmission to realize the design of the rotation angle can produce the required sliding amount.