Pre-fabricated Carriage Frame for Bay Window Installation
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Solution Overview
Problem
The construction and installation of protruding fenestration assemblies, such as bay windows, are time-consuming and labor-intensive due to the need for custom-built framing and additional support structures, which also require involvement from multiple tradesmen for services like HVAC and electrical work.
Innovation Solution
A projecting fenestration assembly comprising a window shell with a carriage frame that includes a carriage tray and struts, which is assembled and delivered to the site ready for installation, eliminating the need for on-site construction of support frames and allowing direct coupling to the building's rough opening frame, thereby minimizing labor and time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If custom-built framing and support structures are constructed on-site, then structural support for the protruding fenestration assembly is achieved, but installation time and labor intensity increase significantly
Solution Approach 1:
The carriage frame assembly is pre-fabricated off-site with all structural components (carriage tray, carriage struts, support brackets) assembled and ready for installation. This preliminary construction eliminates the need for time-consuming on-site framing work while ensuring structural integrity through controlled manufacturing conditions.
Solution Approach 2:
The fenestration assembly is divided into distinct functional modules: the carriage frame assembly (with tray and struts) as a self-contained structural unit, and the window assembly. This segmentation allows the structural support system to be manufactured separately and installed as a complete unit, reducing on-site construction time.
2Adaptability or versatility
If multiple tradesmen are involved for additional services (HVAC, electrical), then functional requirements are met, but installation complexity and time increase
Solution Approach 1:
The carriage frame assembly is designed as a multi-functional platform that simultaneously provides structural support, mounting surfaces for HVAC equipment, electrical conduit routing, and ventilation integration. This universal design consolidates multiple trade requirements into a single integrated structure, reducing installation complexity.
3Strength
If additional framing and support are constructed for seating, then load-bearing capacity is increased, but construction time and labor intensity further increase
Solution Approach 1:
The carriage tray is pre-assembled with integrated seating support structures and fastening mechanisms during manufacturing. This preliminary preparation allows seating to be installed as a simple assembly task rather than requiring additional on-site framing construction, maintaining load-bearing capacity while improving construction efficiency.
Data Source
AI summary
A projecting fenestration assembly includes a window shell having a plurality of component translucent panels. The window shell includes a shell frame having shell edges and a shell base. The plurality of component translucent panels are seated within the shell frame and surround a light cavity. A carriage frame is coupled with the window shell and supports the window shell. The carriage frame includes one or more carriage struts and a carriage tray extending from the one or more carriage struts to a tray end. The one or more carriage struts are coupled along the shell edges of the window shell. The carriage tray is coupled along the shell base.