Sliding Operator Protection Panel for Transit Door Blockage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional swing doors in public transit vehicles can create blockages, trapping operators when accommodating physically impaired passengers or obstructed by internal objects, and require full closure to operate the vehicle, hindering easy access and safety.
Innovation Solution
A slider-style protection interface with transparent or partially transparent panels that can lock in open or closed positions, featuring electronic and manual locking mechanisms and a fail-open safety feature, allowing the door to slide along rails for easy access and supervision while maintaining operator safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a swing door is positioned between the operator and the remainder of the vehicle interior to separate the operator, then operator separation is improved, but the door may create blockages preventing the operator from leaving the driver compartment when passengers are positioned in the space outside the door or when objects obstruct the door path
Solution Approach 1:
The door is changed from a static swing mechanism to a dynamic sliding mechanism that can move horizontally along rails. This allows the door to be positioned in the closed position for operator separation or fully retracted to the side for unobstructed operator access, eliminating the blockage problem inherent in swing doors.
Solution Approach 2:
Instead of the door swinging in an arc within the same plane, the door is designed to slide horizontally along rails, moving from a central position to a lateral position. This dimensional change allows the door to clear the operator's path completely while maintaining separation when closed.
2Reliability
If a swing door is used to separate the operator, then operator separation is achieved, but the door must be fully closed in order to operate the vehicle, hindering easy access
Solution Approach 1:
The sliding door mechanism allows the door to be positioned in multiple locations: fully closed for operator separation, fully open for maximum access, or partially positioned along the rail. This dynamic positioning capability provides flexibility that a binary swing door (open/closed only) cannot achieve.
Solution Approach 2:
The door system serves multiple functions: it can provide full separation when closed, full access when fully retracted, and partial separation/access at intermediate positions. The electronic locking mechanism adds another layer of functionality by allowing the door to be secured in various positions, enhancing both safety and accessibility.
3Loss of information
If a transparent or partially transparent panel is used for the protection interface, then visual obstruction is reduced permitting supervision of passengers, but the structural integrity and protection capability may be compromised
Solution Approach 1:
The door utilizes transparent or partially transparent materials such as reinforced glass or transparent polymers that combine optical transparency with structural strength. These composite materials maintain the protective function while allowing visual supervision of passengers, resolving the contradiction between visibility and protection capability.
Data Source
AI summary
Systems and methods described herein provide a safety system for use within an interior of a vehicle. The Safety System described herein may include a protection panel coupled to a support for a slider style protection interface.