Hinged Ladder Tray That Folds Into the Top Cap Footprint
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Solution Overview
Problem
Existing ladders and step stools often require separate storage and transportation of removable tool trays, which can be inconvenient due to attachment difficulties and increased space requirements, and the trays may need to be removed for transport, leading to weight and awkward handling issues.
Innovation Solution
A hinged tray integrated into ladders and step stools that folds within the top cap's footprint, providing a secure work area for tools and hardware, with indents for carrying and various compartments for storage, manufactured from durable materials like plastic, and attached using rivets or other known methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a removable tray is attached to the ladder or step stool, then tools and hardware can be held within easy reach, but the tray requires separate storage and transportation space, and may need to be removed for transport
Solution Approach 1:
The tray is integrated into the top cap structure of the ladder or step stool, merging two separate components (tray and top cap) into a single unified structure. This eliminates the need for separate storage of the tray while maintaining its functionality for holding tools and hardware.
Solution Approach 2:
The tray is designed with a hinged connection that allows it to be movable between an open position (for accessing tools) and a closed position (for compact storage and transport). This dynamic design enables the tray to adapt between providing easy access to tools and being compact for storage or transportation.
2Adaptability or versatility
If a removable tray is used with the ladder or step stool, then work materials can be stored, but the tray and ladder must be stored separately, taking up additional space
Solution Approach 1:
The tray folds into and nests within the top cap structure when not in use, similar to how nested dolls store within each other. This allows the tray to be contained within the footprint of the top cap, eliminating additional storage space requirements while maintaining full functionality when needed.
Solution Approach 2:
The tray utilizes the vertical dimension by folding upward into the top cap structure rather than extending outward. This dimensional transition allows the tray to be stored within the existing footprint of the top cap, effectively using vertical space instead of horizontal space.
3Reliability
If a removable tray is attached to the ladder or step stool, then tools can be held securely, but the tray may need to be removed for transport due to weight or awkward configuration
Solution Approach 1:
The tray is permanently integrated into the top cap structure through hinged connection, merging the tray and top cap into a single unit. This eliminates the need to separately remove and transport the tray, improving transport convenience while maintaining secure tool holding capability.
Solution Approach 2:
The hinged connection allows the tray to be dynamically positioned - secure and stable during use, and foldable during transport. This dynamic design maintains reliable tool holding when needed while enabling convenient transport when the tray is folded into the compact position.
Data Source
AI summary
A hinged tray for a ladder or step stool disclosed. The hinged tray includes compartments for holding tools or hardware while the tray is open or closed. The footprint of the top of the ladder or step stool top cap is the same as the footprint of the hinged tray so that when the hinged tray is in the folded position the two footprints are aligned and the front and rear surfaces of the top cap and tray are at the same angle as the rails of the ladder or step stool.