Containment-Frame Cart for Video Projection Screen Case Handling
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Solution Overview
Problem
Conventional video projector screens and multipurpose tables are bulky and difficult to transport due to their disassemblable nature, requiring multiple cases and separate handling, which complicates logistics in the video, audio, and production industries.
Innovation Solution
A transportation cart designed with a base frame, support rails, straps, and ground engaging units to secure and move video projection screen cases, and a frame with vertical supports and cross-members to manage multipurpose tables, facilitating efficient handling and transport of these items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional video projector screens are disassembled for storage and transportation, then storage space is reduced, but handling complexity increases
Solution Approach 1:
The patent combines multiple disassembled screen components into a single integrated transportation cart structure. The cart includes a base frame with vertical supports, horizontal supports, and a containment frame that holds all screen parts together as one unit, eliminating the need to separately handle multiple cases.
Solution Approach 2:
The transportation cart serves multiple functions: it acts as a storage container, a transportation platform, and a organizational structure for screen components. The cart can accommodate different screen sizes and configurations, making it a universal solution for various screen transportation needs.
2Stability of the object's composition
If conventional multipurpose tables are transported with telescoping supports coupled to base structure, then stability is improved, but transportation efficiency decreases
Solution Approach 1:
The cart structure is divided into distinct functional segments: base frame with ground engaging units for mobility, vertical supports for structural integrity, horizontal supports for load distribution, and containment frame for cargo securing. This segmentation allows each part to optimize its specific function while working together as a unified system.
Solution Approach 2:
The cart acts as an intermediary platform between the ground and the multipurpose tables. The ground engaging units interface with the ground surface, while the containment frame interfaces with the table components, distributing forces and enabling efficient transportation without direct handling of the tables themselves.
3Reliability
If multiple separate cases are used for screen components, then component protection is improved, but logistics complexity increases
Solution Approach 1:
The patent merges multiple separate case functions into a single containment frame structure that provides protection for all screen components simultaneously. The frame includes side walls, end walls, and a top surface that collectively protect screens, stands, and other components while eliminating the need for multiple separate cases.
Data Source
AI summary
A transportation cart configured to transport video projection screen cases comprises a base frame for supporting a video projection screen case; a plurality of ground engaging units for supporting the base frame from a ground surface; a containment frame located a distance above the base frame and connected thereto; and a first and second strap configured to secure cargo. The transportation cart is also configured to transport a plurality of multipurpose tables and comprises a base; a plurality of ground engaging units for supporting the base from a ground surface; a first and second vertical support extending up from the base.