Reversible Cart Table With Portal Handle Configurations
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Solution Overview
Problem
Conventional carts and tables with removable handles lack versatility in configuration and stability, limiting their functionality and usability in various orientations.
Innovation Solution
A cart or table design featuring parallel surfaces, hollow pipes, and portals that allow for multiple handle configurations, enabling the device to be converted between a cart and a table by adjusting the handle positions and orientations, with wheels attached to one surface for mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional carts and tables with removable handles are used, then the device can be moved or used as a table, but the device lacks versatility in configuration and stability
Solution Approach 1:
The device is divided into separable components: a frame with multiple portal openings, removable handles, and detachable wheels. This segmentation allows the handles to be repositioned between different portal locations to create various configurations (cart mode with handles on short sides, table mode with handles on long sides), thereby improving configuration versatility while maintaining structural stability through the rigid frame structure.
Solution Approach 2:
The device transitions from a static structure to a dynamic, reconfigurable system. Handles can be removed and reinserted at different portal locations, and wheels can be detached and reattached, allowing the device to dynamically adapt between cart and table configurations. This dynamic reconfigurability enhances versatility while the frame's rigid structure maintains stability during transitions and in each configuration state.
2Adaptability or versatility
If the device is designed to be reversible between cart and table, then multi-functionality is achieved, but device complexity increases
Solution Approach 1:
The frame structure incorporates multiple identical portal openings positioned at strategic locations, allowing the same handle components to serve multiple functions. The handles can be inserted into different portals to create either cart handles or table legs, and the wheels can be attached to different locations. This universal design approach enables multi-functionality without requiring separate components for each mode, thereby limiting the increase in device complexity.
Solution Approach 2:
The device uses homogeneous components throughout: all portal openings have the same dimensions and structure, all handles are identical with matching support beams, and all wheels are interchangeable. This homogeneity simplifies the design by using repeated standard elements rather than unique components for each function, reducing overall structural complexity while achieving reversibility between cart and table configurations.
Data Source
AI summary
A reversible cart with wheels is disclosed which can be flipped from one orientation with wheels down and handles pointed upwards, to another orientation with the wheels and handles both pointed downwards (relative to the ground). In the latter embodiment, the cart functions as a table. To accomplish this, portals extend through the cart/table, at least some of which are equidistantly spaced from others, and two support beams of a handle or handles are inserted into two successive portals. The portals can be on narrow and long sides of a rectangular cart/table, allowing the handles to be inserted in various configurations, such as only on the narrow side, on both narrow sides, or on the long side. The cart/table itself can have two sides spaced apart by ribbing, creating a shelf there-between.