Multi-segment Cover Mechanism for Depth Reduction in Automotive Displays
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Solution Overview
Problem
Conventional display devices with a single-piece cover for head-up or pop-up displays require increased depth due to large sliding distances, leading to space issues in automobile dashboards and potential obstruction of the driver's view.
Innovation Solution
A display device with multiple cover members that fold and overlap each other, allowing synchronized opening and closing, and utilizing travel control means to manage their movement, reducing depth dimension and load distribution for smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a single-piece cover is used to cover the opening, then the opening can be fully covered, but the depth dimension of the device increases due to large sliding distance
Solution Approach 1:
The cover is divided into multiple sections (first cover section and second cover section) that can move independently. This segmentation allows each section to cover a portion of the opening, eliminating the need for a single large cover that would require extensive sliding distance, thereby reducing the depth dimension while maintaining full coverage capability.
Solution Approach 2:
The cover sections are arranged in a layered configuration where they can overlap with each other in the depth direction. This dimensional arrangement allows the cover to achieve full opening coverage through vertical layering rather than horizontal sliding, significantly reducing the required sliding distance and depth dimension of the device.
2Length of moving object
If the cover is divided into two sections, then the depth dimension is reduced, but the lids protrude above the device and may interrupt the driver's vision
Solution Approach 1:
The cover sections are configured to overlap in the depth direction rather than protruding forward. This vertical layering allows the cover to maintain a low profile that does not interfere with the driver's line of sight, while still providing complete opening coverage when closed.
Solution Approach 2:
The cover sections are designed with independent movement capabilities, allowing them to open and close in a coordinated sequence. This dynamic configuration enables the cover to retract smoothly without creating visual obstructions, as the sections can be positioned to clear the driver's view when not in use.
3Ease of operation
If multiple cover members are used, then the load is spread and operation becomes smoother, but the device complexity increases
Solution Approach 1:
Multiple cover sections are integrated into a unified structure with coordinated movement mechanisms. The sections share common support elements and control systems, allowing the load to be distributed across multiple components while maintaining a compact, manageable overall structure that does not excessively increase device complexity.
Data Source
AI summary
A display device is provided and includes: a display portion; a storage member configured to house the display portion and including an opening through which the display portion passes; a plurality of cover members configured to cover the opening and to travel from the opening to a region of the storage member adjacent to the opening so as to be folded up and overlapped with each other at the region; and travel control means configured to cause the plurality of cover members to transfer to a first condition in which the opening is closed by the plurality of cover members and also to a second condition in which the plurality of cover members are folded up and overlapped with each other.