Astragal Retainer Transverse Mounting Assembly
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Solution Overview
Problem
Existing astragal assemblies for double door entryways require complex and time-consuming assembly processes, with retention components often needing to be slid into place from the ends, making installation and repair cumbersome.
Innovation Solution
The introduction of a retainer system with a retention portion and a mounting portion that can be attached to the astragal body in a direction normal to its major axis, utilizing biased members and guide slots to facilitate easier assembly and removal, allowing for quicker installation and improved repair capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If retention components are slid into place from the ends of the astragal body, then the assembly process becomes complex and time-consuming, but the structural integrity is maintained
Solution Approach 1:
The retainer is designed to be installed from a direction normal to the major axis of the astragal body (transverse direction), rather than sliding from the ends (longitudinal direction). This dimensional change in installation approach simplifies the assembly process and reduces installation time while maintaining structural integrity.
Solution Approach 2:
The retainer is divided into distinct functional portions: a retention portion for engaging entryway components and a mounting portion for attachment to the astragal body. This segmentation allows for simplified installation from the transverse direction while maintaining the structural requirements of each function.
2Ease of repair
If retainers are designed for easy removal and installation, then repair time is reduced, but the security of the door retention may be compromised
Solution Approach 1:
The retainer's segmentation into retention and mounting portions allows the mounting portion to be designed for easy removal (with biased members), while the retention portion maintains secure engagement of the door component. This functional separation enables easy repair without compromising security.
Solution Approach 2:
The mounting portion acts as an intermediary between the retainer and the astragal body, providing a controlled attachment mechanism that allows easy removal and reinstallation while the retention portion maintains secure door engagement throughout the process.
3Ease of operation
If the retainer uses biased members for mounting, then assembly is facilitated, but the device complexity increases
Solution Approach 1:
The biased members are integrated into the mounting portion as a dedicated subsystem, separating the assembly facilitation function from the retention function. This allows the retention portion to remain simple while the mounting portion incorporates the biased members for easy attachment and removal.
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
This solution significantly reduces the time required for assembling and repairing astragal assemblies, allowing for faster installation and easier maintenance without the need to remove the passive door or astragal assembly from the frame.
Implementation Method 1
at least one biased member configured to compress to facilitate placement of the mounting portion at least partially within the longitudinal channel from a direction normal to the major axis
Data Source
AI summary
Retainers for use within an astragal assembly as described. The astragal assembly has an astragal body with a major axis. The astragal assembly is for use in a double door entryway unit. The retainers include a retention portion configured to engage an entryway component and a mounting portion configured for placement onto the astragal body in a direction normal to the major axis. The retention portion is either a void for receiving at least one of a latch and a deadbolt, or the retention portion is a bolt pin configured to engage an entryway frame.