Chair-mountable screen
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Solution Overview
Problem
Existing chair-mounted screens are ineffective on a wide variety of chairs due to limited size compatibility, instability, and difficulty in maintaining optimal positioning, often requiring elastic straps that can warp the screen.
Innovation Solution
A chair-mountable screen with adjustable X-shaped straps and hook-and-loop fastening material, allowing for secure attachment to different chair sizes and shapes without relying on elastic materials, ensuring stability and preventing tilting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If elastic straps are used to accommodate different chair sizes, then adaptability is improved, but screen shape stability deteriorates due to warping
Solution Approach 1:
The strap system is divided into multiple independent straps (first strap, second strap, third strap, fourth strap) arranged in an X-pattern, allowing each strap to independently adjust to chair dimensions without exerting uniform tension that would warp the screen. The segmentation enables distributed force application.
Solution Approach 2:
The strap length is made adjustable through fastening mechanisms (such as buckles or velcro) that allow the strap length to be changed according to different chair sizes. This parameter adjustment enables adaptability without using elastic materials that would cause screen deformation.
2Stability of the object's composition
If additional components are added to prevent tilting, then stability is improved, but device complexity increases
Solution Approach 1:
The X-shaped strap arrangement creates asymmetric force distribution that naturally counteracts the top-heaviness of the screen. The diagonal straps provide restoring forces that prevent backward tilting without requiring additional active stabilization components.
Solution Approach 2:
The mounting system transitions from a single-plane horizontal strap to a three-dimensional X-shaped configuration with straps extending in multiple directions. This dimensional change provides stability in both horizontal and vertical planes, preventing tilting without additional components.
3Device complexity
If a single horizontal strap is used, then device complexity is reduced, but adaptability to irregular chair shapes deteriorates
Solution Approach 1:
The single horizontal strap is segmented into multiple diagonal straps forming an X-pattern. This segmentation allows the mounting system to conform to irregular chair back shapes by distributing attachment points across different locations, accommodating variations in chair geometry.
Solution Approach 2:
The strap system evolves from a one-dimensional horizontal strap to a two-dimensional X-shaped configuration. This dimensional expansion provides multiple attachment angles and positions, enabling adaptation to irregular chair shapes while maintaining structural integrity.
4Adaptability or versatility
If the screen is made flatter on top, then adaptability to different chair shapes is improved, but screen surface area is reduced
Solution Approach 1:
The screen frame incorporates a localized flat region at the top portion, while the rest of the screen maintains its full surface area. This local modification improves compatibility with chair shapes without significantly compromising the overall display area, as the flattening is confined to a specific region.
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 screen securely mounts on various chair types and sizes, maintaining optimal positioning and stability, preventing tilting and light leakage, while allowing for easy adjustment and use on irregularly shaped chair backs.
Implementation Method 1
hook and loop fastening material between the straps and the screen that can be open and closed
Data Source
AI summary
A chair-mountable screen including a screen frame defining a perimeter of the screen, at least one screen material supported by the screen frame, and a strap arrangement fastened on each of the at least one screen material. The strap arrangement is adjustably-attachable to the screen to create a selectively-sized gap between the screen material and the strap arrangement.