Two-part Channel Cross Member with Foldable Locking Tabs
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Solution Overview
Problem
Conventional narrow channel systems in suspended ceiling construction face difficulties in trimming the ends of utility hardware components like panels and lights due to impractical use of short cross runners or tees with conventional end connections.
Innovation Solution
A two-part cross member system is introduced, comprising a carrier with a conventional tee cross-section and a three-dimensional cover, where the cover is field-mounted onto the carrier after installation, allowing for easier assembly and visual harmony with the surrounding grid network by using a U-shaped sheet metal channel with integral bendable tabs for locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a single-part cross member with three-dimensional lower flange is used, then visual harmony with the surrounding grid is achieved, but assembly complexity and installation difficulty increase
Solution Approach 1:
The cross member is divided into two separate parts: a carrier portion and a cover portion. The carrier portion includes the functional elements for attachment to the channel, while the cover portion provides the visual finish. This segmentation allows each part to be optimized independently - the carrier for ease of installation and the cover for aesthetic appearance - thereby resolving the contradiction between visual harmony and assembly complexity.
2Strength
If conventional end connections are used for trimming utility components, then structural integrity is maintained, but ease of operation and installation are reduced
Solution Approach 1:
The connection function is extracted from the visible cross member portion and placed in the hidden carrier portion. The cover portion is taken out from the functional connection role and assigned purely to aesthetic coverage. This allows the connection mechanism to be simplified for ease of installation while the cover provides the necessary structural completion without complicating the installation process.
3Ease of operation
If a two-part cross member system is used, then ease of installation is improved, but device complexity increases
Solution Approach 1:
The carrier portion integrates multiple functions into a single component: it provides the attachment interface for the channel, the structural support for the utility components, and the mounting substrate for the cover. By merging these functions into the carrier, the system reduces overall complexity despite having two parts, as the carrier becomes a multi-functional hub that simplifies the relationship between the other elements.
Data Source
AI summary
A cross member for a narrow channel in a suspended ceiling grid comprising a carrier and a cover, the carrier having a web and a planar flange on a lower edge of the web, end connectors at opposite ends of the carrier web, the cover having a three-dimensional cross-section with an overall width generally equal to the width of the carrier flange and integral bendable tabs, the tabs being adjacent the ends of the cover and short in comparison to a length of the cover, the tabs being constructed to be manually folded over the flange of the carrier to lock the cover to the carrier.