Adjustable Tubular Exit Device for Variable Door Dimensions
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Solution Overview
Problem
Existing exit devices for doors lack flexibility in accommodating doors of varying dimensions and require multiple configurations and sizes, which complicates installation and increases costs.
Innovation Solution
The proposed exit device features a main tube with axially adjustable first and second adjustment tubes, allowing for customizable fitting to different door sizes and configurations through axial adjustment along specific axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple configurations and sizes of exit devices are used to accommodate doors of varying dimensions, then adaptability to different door sizes is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The exit device employs a universal main tube design that can accommodate multiple door configurations through adjustable components. The main tube serves multiple functions by accepting different adjustment tubes (first and second adjustment tubes) that can be configured in various positions and orientations to suit different door sizes and types, eliminating the need for multiple dedicated device variants.
Solution Approach 2:
The exit device incorporates adjustable components that allow dynamic reconfiguration. The first and second adjustment tubes can be positioned at different locations along the main tube and adjusted axially to change the effective length and configuration of the device, enabling adaptation to varying door dimensions without requiring multiple fixed-configuation devices.
2Adaptability or versatility
If multiple configurations and sizes of exit devices are used to accommodate doors of varying dimensions, then adaptability to different door sizes is improved, but installation time and costs increase
Solution Approach 1:
The adjustment tubes are designed with pre-configured mounting capabilities and standardized interfaces that allow for quick attachment and adjustment during installation. The components are prepared in advance with built-in adjustment mechanisms that simplify the installation process, reducing the time required to adapt the device to different door configurations.
Solution Approach 2:
The exit device is divided into modular segments (main tube, first adjustment tube, second adjustment tube) that can be independently positioned and adjusted. This segmentation allows installers to configure each component separately and systematically, streamlining the installation process compared to installing a single complex integrated device.
3Adaptability or versatility
If multiple sizes of exit devices are manufactured to fit different doors, then adaptability is improved, but manufacturing costs increase
Solution Approach 1:
The main tube is designed as a universal component that can serve multiple door configurations. By producing a single type of main tube that accommodates various adjustment tubes, manufacturers reduce the need to produce multiple specialized device variants, thereby lowering manufacturing costs while maintaining adaptability.
Solution Approach 2:
The invention merges the functionality of multiple device sizes into a single platform. The main tube combines with different adjustment tubes to create various effective configurations, allowing manufacturers to produce a core component (main tube) in large quantities at economies of scale, rather than producing multiple complete device variants in smaller batches.
Data Source
AI summary
An exit device assembly for coupling to a door having a first side and second side. A first exit device may be coupled to the first side of the door. The first exit device may include a main tube extending from a first end to a second end and a first adjustment tube coupled to the first end of the main tube. The first adjustment tube may be axially adjustable relative to the main tube along a first adjustment axis. An actuator assembly may be supported within an interior of the main tube of the first exit device and may be moveable between a first position and a second position. A latchbolt may be coupled to the actuator assembly and may be moveable between a retracted position and an extended position in which the latchbolt engages a latch.