Central Node Locking for Fast, Secure Strut Assembly
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Solution Overview
Problem
Existing technologies face challenges in efficiently connecting and interlocking multiple rods at a node within a framework, particularly in applications like aircraft interiors, where manufacturing tolerances and assembly simplicity are critical.
Innovation Solution
A locking arrangement with a central node bearing and mounting ports that allow multiple rods to be connected and locked/unlocked via a central actuation system, utilizing mechanisms such as spring-loaded pins, electroactive polymers, or hydraulic systems to facilitate quick and secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate locking mechanisms are used for each rod connection at a node, then each connection can be securely locked, but the device complexity and assembly time increase significantly
Solution Approach 1:
The patent combines multiple locking mechanisms into a single integrated locking element that can simultaneously engage with multiple rods at a node. The locking element features multiple locking surfaces that can interact with complementary surfaces on different rods, allowing one component to perform the function of what would traditionally require multiple separate locking mechanisms.
Solution Approach 2:
The locking element is designed as a universal component that can secure multiple types of rods (compression members, tension members, diagonal bracing) at a single node. The mounting ports and locking surfaces are configured to accommodate various rod orientations and types, making the same locking mechanism applicable to different connection scenarios without requiring specialized components for each rod type.
2Reliability
If traditional separate locking mechanisms are used for each rod, then each connection can be independently secured, but the assembly time and installation complexity increase
Solution Approach 1:
The locking element integrates multiple locking functions into a single operable unit that can be installed and secured in one action rather than requiring multiple separate operations for each rod connection.
Solution Approach 2:
The locking element is pre-configured with multiple locking surfaces and engagement features that are ready to simultaneously engage with multiple rods upon installation, eliminating the need for sequential adjustment and locking of each rod individually.
3Productivity
If a central locking mechanism is used to connect multiple rods at a node, then assembly time is reduced, but the device complexity increases
Solution Approach 1:
The locking element is segmented into multiple functional zones with distinct locking surfaces, each capable of independently engaging with a rod. This segmentation allows the complex function of securing multiple rods to be divided into simpler, modular engagement features that can be manufactured and assembled more easily.
Solution Approach 2:
The locking element incorporates nested mounting ports within its structure, allowing rods of different types and orientations to be accommodated in a compact, space-efficient manner. The nested configuration reduces the overall complexity by integrating multiple functions into a single compact component rather than requiring separate mechanisms for each rod.
Data Source
AI summary
A locking arrangement for connecting and interlocking rods at a node within a framework includes connection rods and a central node bearing to be engaged from different directions by each of the connection rods at respective mounting ports through plugging each connection rod onto a respective mounting port. The central node bearing is configured with at least one locking element at each mounting port to be actuated between a locked state, in which the at least one locking element resides in an outward position and the respective connection rod plugged onto the respective mounting port is clutched to the central node bearing by the at least one locking element, and an unlocked locked state, in which the at least one locking element resides in an inward position and the respective connection rod is released from the central node bearing.