Stepladder Tray With Nesting Storage And Prong Attachment
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Solution Overview
Problem
Existing removable trays for ladders, step stools, and stepladders are inconvenient to attach or remove, often requiring separate storage and increasing space requirements, as they must be carried separately due to weight or awkward configurations.
Innovation Solution
A detachable tray with prongs that fit into corresponding slots on the top cap for secure attachment and detachment, and stud slots for storage within the stepladder boundaries, allowing for easy use and storage without increasing the stepladder's footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a removable tray is attached to the top cap of a stepladder, then a larger work area is provided, but the tray cannot be stored within the boundaries of the closed stepladder and increases storage space requirements
Solution Approach 1:
The tray is designed to nest within the closed configuration of the stepladder when not in use. The tray can be positioned within the interior space of the closed stepladder structure, allowing it to be stored without increasing the overall footprint of the stepladder. This nesting approach resolves the contradiction by enabling the tray to provide extended work area when needed while occupying no additional storage space when stored.
Solution Approach 2:
The tray is designed with dynamic attachment and detachment capabilities, allowing it to be easily added to or removed from the top cap through simple insertion and removal actions. The tray can be quickly attached when work is needed and easily removed when storage is required, providing flexibility in managing the work area without permanent modification to the stepladder structure.
2Area of stationary object
If a tray is made detachable for easy removal, then storage space is reduced, but the tray may be difficult to attach or remove depending on the configuration of the top cap
Solution Approach 1:
The attachment mechanism is segmented into simple, discrete components that can be easily inserted and removed. The tray includes attachment elements that can be independently engaged with corresponding features on the top cap, allowing for simple snap-fit or tool-free attachment without complex assembly procedures. This segmentation makes the attachment and detachment operations straightforward while maintaining secure connection during use.
Solution Approach 2:
An intermediary attachment mechanism is provided between the tray and the top cap, serving as a mediator that simplifies the connection process. This intermediary component facilitates easy attachment and detachment by providing a standardized interface that requires minimal effort to engage or disengage, resolving the contradiction between secure attachment and ease of removal.
3Quantity of substance
If the tray is made larger to provide more storage area, then more tools and materials can be held, but the tray becomes more difficult to transport and store
Solution Approach 1:
The tray is designed to nest within the closed configuration of the stepladder, allowing a larger tray capacity to be accommodated without increasing the overall storage footprint. The tray can be positioned within the interior space of the closed stepladder, enabling extended storage capacity while maintaining compact storage requirements. This nesting approach allows the tray to hold more tools and materials without becoming difficult to store.
Solution Approach 2:
The tray storage function is merged with the stepladder structure itself, utilizing the existing interior space of the closed stepladder as the storage location for the tray. This merging eliminates the need for separate storage space for the tray, allowing the tray to be stored within the stepladder boundaries and reducing the overall complexity of transport and storage operations.
Data Source
AI summary
A tray for a stepladder is disclosed. The tray provides an area for work space or for storage of tools or materials in addition to that provided by the stepladder by itself. The tray is configured to be removably attachable to the top of the stepladder when in use or removably attached to the stepladder and preferably within the boundaries of the stepladder when not in use.