Spring-Biased Lid Mechanism for Vehicle Display Clearance Control
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Solution Overview
Problem
Existing display apparatuses for liquid crystal displays in vehicles have complex structures due to the need for synchronized movement of the display panel and lid members, often requiring intricate mechanisms like driving disks or link mechanisms driven by motors, which complicate the design and increase the risk of clearance issues.
Innovation Solution
A display apparatus that uses a single lid member to close the movement region both when the display panel is stored and projected, leveraging the movement of the display panel to drive the lid member with a spring bias, eliminating the need for complex motor-driven mechanisms and ensuring the lid member can promptly move to the opening position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a motor-driven driving disk or link mechanism is used to move the lid member, then the lid member can be moved between opening and closing positions, but the structure becomes extremely complex
Solution Approach 1:
The lid member moves automatically by utilizing the gravitational force of the display panel itself during its movement between stored and projecting positions. The display panel's weight and motion directly drive the lid member through a simple linkage, eliminating the need for separate motor-driven mechanisms.
Solution Approach 2:
The display panel serves dual functions: it is both the displayed content carrier and the driving force for moving the lid member. The same gravitational force that causes the display panel to move also actuates the lid member, combining multiple functions into a single mechanism.
2Reliability
If the same motor moves both the display panel and the lid member, then synchronized movement is achieved, but the driving mechanism requires complex structure
Solution Approach 1:
The system uses the display panel's own movement and gravitational force to automatically drive the lid member, creating inherent synchronization without requiring complex coordinated control mechanisms. The lid member responds directly to the display panel's position changes through mechanical linkage.
Solution Approach 2:
Instead of using a motor to actively drive both components, the invention inverts the approach by allowing the display panel's passive gravitational movement to actively drive the lid member, reversing the traditional control hierarchy.
3Reliability
If two members (door member and cover) are used to close the opening, then the opening is fully covered, but the structure includes many parts
Solution Approach 1:
The door member and cover are merged into a single integrated lid member that performs both functions. This single component closes the opening effectively while eliminating the complexity of coordinating two separate members and their respective driving mechanisms.
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
This simplifies the structure, minimizes parts, prevents clearance formation, and effectively keeps foreign matter out by using the display panel's movement to synchronize the lid member's operation, reducing the complexity and potential issues associated with multiple moving parts.
Implementation Method 1
a spring member that allows the lid member to move to the opening position
Data Source
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AI summary
A lid support member (61) supporting a lid member (60) is connected through an elastic link (75a) to a pivotable biased link (71a). The pivotable biased link is biased clockwise by a spring member (73a). When an advancing and receding member (44) advances such that a display panel (20) shifts to a projecting position (i) where the display panel upwardly projects from an opening (101) in a body panel (100), the pivotable biased link is pivoted counterclockwise by force produced by movement of the advancing and receding member such that the lid member is elastically pressed against the display panel, so that the lid member closes a space in which the display panel is not positioned in the opening.