Spring-Biased Ladder Extension Latch for Secure Quick Installation
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Solution Overview
Problem
Ladder extensions or walkthrough assemblies are often cumbersome to install and require secure connections that are not easily achieved with existing systems.
Innovation Solution
A latch assembly for ladder extensions comprising a base, connector, mounting plate, and biasing member, where the mounting plate is slidable between locked and unlocked positions, and biased into the locked position by a compression spring, ensuring secure attachment to the ladder side rail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional connection methods are used for ladder extensions, then secure connection is achieved, but installation becomes cumbersome and complicated
Solution Approach 1:
The mounting plate is designed to slide between locked and unlocked positions dynamically. During installation, the mounting plate can be easily slid to an unlocked position for quick attachment, then automatically locks into place through the biasing member. This dynamic mechanism resolves the contradiction by providing both ease of installation and secure connection without requiring complex manual fastening procedures.
Solution Approach 2:
The biasing member automatically biases the mounting plate into the locked position after installation, creating a self-securing mechanism. The system uses the insertion motion itself to compress the biasing member, which then automatically locks the extension in place without requiring additional fastening actions. This self-service feature eliminates cumbersome installation steps while maintaining reliable connection.
2Ease of operation
If simple connection mechanisms are used, then installation is easy, but secure connection cannot be achieved
Solution Approach 1:
The sliding mounting plate transitions from an easy-to-move unlocked state during installation to a securely locked state through automatic engagement. The dynamic design allows simple sliding motion for installation while the locked position provides secure connection, resolving the contradiction between installation ease and connection reliability.
Solution Approach 2:
The biasing member is pre-loaded to automatically engage the mounting plate in the locked position after insertion. This preliminary action of pre-compressing the biasing member during installation ensures that secure locking occurs automatically without requiring complex mechanisms, thus achieving both ease of installation and secure connection.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates easy and secure installation of ladder extensions by automatically locking onto the ladder rungs, preventing accidental detachment during use.
Implementation Method 1
the biasing member biases the mounting plate into the locked position
Data Source
AI summary
A latch for a ladder extension, which has a base configured and arranged to fit over a distal end portion of a side rail of a ladder proximate a rung, comprises a connector, a mounting plate, and a biasing member. The connector has a connecting portion configured and arranged to operatively connect to the base in a fixed position and has a securing end. The mounting plate is configured and arranged to be slidably connected to the base and is slidable between a locked position and an unlocked position relative to the rung. A tab is operatively connected to the mounting plate proximate an opposing end relative to the connector. The biasing member is captured between the securing end of the connector and the tab of the mounting plate, the biasing member biasing the mounting plate into the locked position.