Rolling Marker Screen Assembly with Overlay Concealment
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Solution Overview
Problem
Traditional erasable marker boards are rigid and immobile, limiting their portability and requiring fixed installations, which restricts their use in different locations and does not allow for easy concealment of written information.
Innovation Solution
A portable marker screen assembly with a rolling mechanism and coupling members that allows the screen to be extended and retracted, enabling mobility and the option to overlay a second screen to cover written content, using a wet erase marker system to prevent smudging when the screen is retracted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional marker boards are made rigid and fixed to walls, then stability and writing surface integrity are improved, but mobility and adaptability are worsened
Solution Approach 1:
The marker board is segmented into a flexible screen that can be divided into multiple sections or layers. This allows the board to be folded, rolled, or reconfigured while maintaining writing functionality, thus achieving both stability during use and mobility for relocation.
Solution Approach 2:
The marker board transitions from a static rigid structure to a dynamic flexible screen that can change its configuration. The screen can be extended, retracted, folded, or rolled depending on whether it is in use or being moved, resolving the contradiction between stability during writing and mobility for relocation.
2Loss of information
If marker boards are supplied within cabinets or doors for concealment, then information hiding capability is improved, but mobility is worsened
Solution Approach 1:
The flexible screen can be nested within itself by folding or rolling into a compact form that fits within a portable housing or case. This allows the marker board to conceal its writing surface when not in use while remaining mobile and easily transportable.
Solution Approach 2:
The marker board uses a flexible screen that can be rolled or folded into a compact configuration, eliminating the need for bulky cabinets or doors for concealment. The flexible nature allows easy storage in a portable case while maintaining the ability to hide written information when not in use.
3Adaptability or versatility
If a flexible screen is used to enable mobility, then adaptability is improved, but writing surface stability and smudge resistance are worsened
Solution Approach 1:
The flexible screen is constructed from composite materials that combine the flexibility needed for mobility with a coating or treatment that provides a stable writing surface. This composite structure prevents smudging while allowing the screen to be rolled or folded without damage.
Solution Approach 2:
The flexible screen incorporates protective layers or coatings applied beforehand to prevent smudging and protect the writing surface during flexing, rolling, or folding. This pre-protection ensures writing integrity is maintained despite the flexible, mobile nature of the board.
4Ease of operation
If the marker screen is made portable with a rolling mechanism, then ease of operation is improved, but device complexity is worsened
Solution Approach 1:
The rolling mechanism is designed to be self-contained and self-operating, using the screen's own weight and simple mechanical advantage to roll up or down without requiring complex motors or power sources. This maintains ease of operation while minimizing added complexity.
Data Source
AI summary
A marker screen assembly includes a housing, a first screen stored within the housing and movable to an extended position, and a second marker screen stored within the housing and movable to an extended position. The second marker screen has a writing surface designed to be repeatably written upon and erased and is configured to overlay at least a portion of the first screen when both the first and second screens are in the extended position.