Adjustable Base Plate Structure for Transit Doors
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Solution Overview
Problem
Existing base plate structures for transit vehicle doors are not adaptable to various door sizes and types, limiting their applicability and requiring multiple specific designs for different door configurations.
Innovation Solution
An adjustable base plate structure comprising fixed dimension elements like mounting brackets and actuators, and variable dimension elements such as a roller channel and center brace, allowing for customization to accommodate different door widths and types by using pivotally mounted actuators and upper braces, with the roller channel and center brace being easily fabricated to fit various door geometries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a standard base plate structure is used for all door configurations, then manufacturing and installation are simplified, but adaptability to various door sizes and types is reduced
Solution Approach 1:
The base plate structure is divided into multiple standardized modules including mounting brackets, roller channels, center braces, and support brackets. Each module is designed with standardized connection interfaces that allow them to be assembled in different configurations to accommodate various door widths and types, maintaining manufacturing simplicity while achieving adaptability.
Solution Approach 2:
The mounting brackets are designed as universal components with adjustable mounting positions and multiple connection points. The standardized mounting bracket can be used across different door configurations by adjusting the position of rollers and changing the arrangement of support brackets, eliminating the need for custom-designed base plates for each door type.
2Adaptability or versatility
If custom base plate structures are designed for each door size and type, then adaptability is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The base plate structure incorporates adjustable and reconfigurable elements rather than fixed rigid connections. The mounting brackets allow for positional adjustments of rollers along the door frame, and support brackets can be repositioned to accommodate different door widths. This dynamic adjustability provides configuration flexibility without requiring multiple custom-designed structures.
3Manufacturing precision
If the base plate structure uses fixed dimensions, then manufacturing precision is improved, but adaptability to different door geometries is reduced
Solution Approach 1:
The base plate structure uses standardized components with fixed manufacturing dimensions to ensure precision, but achieves adaptability through changing the arrangement and configuration parameters of these components. The mounting brackets can be positioned at different locations, rollers can be adjusted along tracks, and support brackets can be reconfigured to match different door geometries while maintaining the precision of individual component dimensions.
Data Source
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AI summary
According to this invention there is provided an adjustable base plate structure for a transit door comprised of a plurality of fixed dimension elements and a plurality of variable dimension elements for accommodating a plurality of door sizes and types. The base plate structure comprises a roller channel for spanning the width of the door and a center brace for being secured to the channel centered on the roller channel. Mounting brackets are secured to the vehicle or door frame and the roller channel.