Container Door Rail Handling for Automated Lock Opening
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Solution Overview
Problem
Existing systems fail to automate the opening and closing of container and truck trailer doors, increasing the driver's responsibility and potential safety risks during cargo handling.
Innovation Solution
An arrangement with parallel linear guides and movable door handling devices equipped with gripping mechanisms and actuators to automatically open and close container/truck trailer doors, utilizing actuators, electromagnets, and distance meters for precise handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual door operation is used, then driver responsibility and safety risks increase, but automation complexity and cost increase
Solution Approach 1:
The door handling system is divided into separate functional modules: a gripping device for handling the locking handle, and a separate lever mechanism for actuating the door lock. This segmentation allows each component to be optimized independently and simplifies the overall control system.
Solution Approach 2:
A lever mechanism is introduced as an intermediary between the gripping device and the door locking system. The lever translates the gripping device's linear motion into the rotational or linear motion required to actuate the door lock, providing mechanical advantage and motion transformation.
2Reliability
If automated door handling is implemented, then safety and labor costs improve, but manufacturing complexity increases
Solution Approach 1:
The door handling device is designed with universal components that can be applied to different door types and container configurations. The linear guide system and gripping mechanism can accommodate various door widths and locking mechanisms, reducing the need for custom-designed systems for each application.
Solution Approach 2:
The system incorporates self-aligning features through the linear guide rails, which automatically position the door handling device correctly as it approaches the door. This reduces the need for complex positioning systems and manual alignment during installation and operation.
3Manufacturing precision
If precise door handling is achieved through actuators and sensors, then operation precision improves, but device complexity and cost increase
Solution Approach 1:
Complex multi-axis robotic manipulators are replaced with a simplified mechanism consisting of a linearly movable gripping device connected to a lever mechanism. The linear guides provide precise positioning without requiring complex servo systems, while the lever mechanism provides mechanical amplification and precise force application to the door lock.
Solution Approach 2:
The system uses variable stroke lengths of the linear actuators and adjustable lever arm ratios to adapt to different door types and locking mechanisms. This allows a single design to achieve precise handling across multiple applications without requiring complex reconfiguration systems.
Data Source
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Figure 5~6
AI summary
An opening and closing arrangement (1) for container and/or truck trailer doors (3), comprising two parallel linear guides (4) extending in a first horizontal direction and arranged at a distance from each other, a further linear guide (5) extending in a second horizontal direction perpendicular to the first direction, the further linear guide (5) being movable along the linear guides (4). The container (2)/truck trailer is arranged to be placed between the linear guides (4) so that container/truck trailer doors (3) face the further linear guide (5). The arrangement further comprises one or more door handling devices (6) mounted on the on the further linear guide (5) and being movable along the further linear guide (5), which door handling device (6) is configured to open and close the container/truck trailer door (3), wherein the door handling device (6) comprises a gripping arrangement (9) configured to grip and turn locking handle(s) (7) of the container/truck trailer door (3).