Snap-Fit Cable Tray Splice for Tool-Free Section Assembly
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Solution Overview
Problem
Existing cable tray assembly systems require additional tools for connecting cable tray sections, which increases assembly time and complexity.
Innovation Solution
The use of snap-fit connectors with resiliently deflectable arms that engage with pre-formed holes in the cable tray sections and splice plates, allowing for tool-free attachment by snapping into place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If screw-type fasteners and splice plates are used to connect cable tray sections, then the connection strength is sufficient, but the assembly time increases and additional tools are required
Solution Approach 1:
The connector is divided into separate components: a body portion that engages with the cable tray section and an arm portion that engages with the splice plate. This segmentation allows each component to be optimized for its specific function while enabling tool-free assembly through simple insertion and snapping actions.
Solution Approach 2:
The resilient arm automatically engages with the splice plate through elastic deformation when inserted into the opening. The arm's inherent elasticity provides the self-service mechanism that secures the connection without requiring external tools or additional fastening operations.
2Ease of operation
If traditional screw fasteners are used, then the connection is secure and reliable, but the assembly process becomes more complex and time-consuming
Solution Approach 1:
The resilient arm is pre-configured with elastic properties during manufacturing, allowing it to automatically deflect and engage with the splice plate upon insertion. This preliminary preparation eliminates the need for on-site tool operations and reduces assembly time significantly.
Solution Approach 2:
The traditional mechanical screw-fastening system is replaced with an elastic snap-fit mechanism. The resilient arm uses elastic deformation to create a secure connection, substituting complex mechanical threading and fastening operations with a simple insertion and snapping action.
3Strength
If multiple components are used for connection, then the connection strength is maintained, but the device complexity increases
Solution Approach 1:
The connector body and resilient arm are combined into a single integrated component in some embodiments, or closely coupled components that function together as one system. This merging maintains connection strength while reducing the total number of separate parts compared to traditional screw fastener assemblies.
Solution Approach 2:
The connector is designed with universal engagement features that can connect to various cable tray section configurations through the standardized opening and retainer geometry. The resilient arm provides both the engagement function and the securing function in a single component, reducing overall system complexity.
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 faster and simpler connection of cable tray sections without the need for additional tools, reducing assembly time and improving efficiency.
Implementation Method 1
At least one snap-fit connector comprises a head and a plurality of resiliently deflectable arms extending from the head. The arms of the connector are configured to extend through aligned holes in the splice plate and one of the cable tray sections to secure the splice plate to said one of the cable tray sections.
Data Source
AI summary
A cable tray assembly includes first and second cable tray sections each including a base and rails extending transversely from longitudinal sides of the base. At least one of the base and the rails defines a plurality of holes. A splice plate is configured to engage the first and second cable tray sections for attaching the first cable tray section to the second cable tray section. The splice plate defines a plurality of holes. At least one snap-fit connector includes a head and a plurality of resiliently deflectable arms extending from the head. The arms of the connector are configured to extend through aligned holes in the splice plate and one of the cable tray sections to secure the splice plate to said one of the cable tray sections.