Cargo Door Deadbolt External Release Mechanism
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Solution Overview
Problem
Existing cargo vehicle security systems fail to allow access to secured compartments in case of mechanism failure, posing risks during accidents or unauthorized entry.
Innovation Solution
A cargo roll up door opening system with an external release mechanism and a deadbolt safety release mechanism that can be operated from outside the cargo area, ensuring disengagement of the roll up cargo door and deadbolt from the linear motion controlling mechanism and doorframe respectively, utilizing cables and linkages for operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the overhead door opening system is implemented to allow vertical door movement during travel, then the cargo door can be opened while moving, but the door may jump up and down causing damage to the door or door opening system
Solution Approach 1:
The deadbolt locking mechanism engages the door in a locked position before vertical movement occurs, preventing the door from jumping up and down during travel. This preliminary locking action counteracts the potential harmful movement before it can cause damage to the door or opening system.
Solution Approach 2:
The system预先 engages the deadbolt and actuator mechanism to secure the door in a fixed position before the vehicle encounters bumps or vibrations during travel, ensuring the door remains stable throughout the journey.
2Reliability
If the deadbolt locking system is implemented to secure the door to the vehicle frame, then the cargo area is secured, but if the locking system fails the door remains locked and inaccessible
Solution Approach 1:
The emergency release mechanism is pre-positioned and ready for operation outside the cargo area. In case of locking system failure, this preliminary prepared release mechanism allows immediate manual disengagement of the deadbolt, providing access without requiring entry through the locked door.
Solution Approach 2:
The actuator mechanism serves as an intermediary between the deadbolt locking system and the door. It can be operated from outside the cargo area to disengage the deadbolt, providing a mediator function that allows door opening even when the primary locking mechanism fails.
3Ease of operation
If the release mechanism is positioned external to the cargo enclosed area, then access can be obtained from outside during failure, but the mechanism complexity increases
Solution Approach 1:
The external release mechanism is integrated with the existing door opening system components, allowing the same actuator and linkage to serve both normal door opening operations and emergency release functions. This multi-functionality reduces the need for entirely separate systems.
Solution Approach 2:
The cable and linkage system acts as an intermediary that transmits the release action from the external operating point to the deadbolt mechanism. This intermediary approach allows the release function to be operated from outside the cargo area while using the existing locking mechanism components.
Data Source
AI summary
A vehicle door security system comprising at least one deadbolt and respective operational elements, wherein the deadbolt secures at least one of a pivoting door and a roll up cargo door. The deadbolt toggles between an engaging configuration and a released configuration. The deadbolt can include an inertial release mechanism that disengages the deadbolt from the engaging configuration when the vehicle is subjected to a sudden impact. Alternatively, the deadbolt can be opened using a manual release mechanism located externally from the vehicle.