Multifunction Ladder Button With Deployable Tool Support
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Solution Overview
Problem
Conventional ladders lack convenient areas for supporting tools and objects in elevated positions, especially when in a freestanding or extension state, and their locking mechanisms are often user-accessible, compromising stability and usability.
Innovation Solution
A multifunction button with a support arm, such as a loop or tray, integrated into the ladder's locking mechanism, which can be deployed to support tools and objects, and is designed to minimize the ladder's outer profile when collapsed, enhancing stability and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a locking mechanism is made user-accessible for easy adjustment, then ease of operation is improved, but stability deteriorates due to compromised security
Solution Approach 1:
A button mechanism serves as an intermediary between the user and the locking mechanism. The button provides a user-friendly interface for adjustment while the internal locking structure maintains stability through secure engagement of the retainer with the hinge assembly
2Volume of moving object
If the ladder is designed in a compact configuration, then storage space is reduced, but accessibility to locking mechanisms deteriorates
Solution Approach 1:
The button mechanism is designed to be movable between different positions (first axial position for locking, second axial position for adjustment). This dynamic positioning allows the ladder to maintain a compact profile while providing user access to adjustment functions when needed
3Reliability
If a retainer is added to prevent rotation, then stability is improved, but device complexity increases
Solution Approach 1:
The button mechanism serves multiple functions: it acts as a retainer to prevent rotation, provides a user interface for adjustment, and engages with the hinge assembly to secure the ladder configuration. This multi-functionality reduces the need for separate components
Data Source
AI summary
Ladders have first and second assemblies with pairs of rails that form a pair of hinges rotatable about a pivot axis. The hinges include at least one retainer movable between axial positions along the pivot axis. The at least one retainer includes a body and a support arm coupled with the body. The arm can be pivotable relative to the body between a deployed position and a collapsed position. The support arm can support objects while a user is in an elevated position on the ladder.