Container Corner Locking Assembly With Single-Actuator Restraint
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Solution Overview
Problem
Existing locking assemblies for securing ISO 668 containers to vehicles are complex, difficult to handle, not robust enough, and require significant space, with manual operation and limited automation capabilities.
Innovation Solution
A locking assembly with a horizontal and vertical locking structure, both movable between locking and releasing positions, controlled by a single linear actuator, allowing for remote operation and self-locking functionality to distribute locking forces directly to the main body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manually operated twist-locks are used to secure containers, then the locking mechanism can be operated without complex automation systems, but the operation is difficult and time-consuming
Solution Approach 1:
The patent replaces manual mechanical operation with an automated actuating mechanism that uses hydraulic or pneumatic cylinders to automatically position the locking structure, eliminating the need for manual twisting and positioning operations while reducing locking time
Solution Approach 2:
The locking structure is designed to automatically engage with the corner mount and perform self-alignment through its geometric configuration, where the angled surfaces guide the locking pin into the correct position without requiring precise manual positioning
2Volume of moving object
If traditional locking mechanisms are used, then the structure can be relatively simple, but the device occupies significant space on the vehicle
Solution Approach 1:
The locking structure utilizes vertical space by positioning the locking pin to engage through the bottom opening of the corner mount, allowing the mechanism to be compact in the horizontal plane while maintaining adequate locking strength through vertical engagement
Solution Approach 2:
The actuating mechanism is integrated within the vehicle's existing frame structure, with hydraulic or pneumatic cylinders mounted in available spaces between structural members, thereby minimizing additional space requirements
3Extent of automation
If manual locking operations are performed, then automation systems are not required, but the operation is complex and difficult to handle
Solution Approach 1:
The actuating mechanism serves multiple functions: it positions the locking structure, applies locking force, and can be integrated with the vehicle's existing hydraulic or pneumatic systems, reducing the need for separate dedicated automation components
Solution Approach 2:
The patent uses hydraulic or pneumatic fluid pressure as an intermediary to transmit force from the actuator to the locking structure, simplifying the mechanical linkage requirements and reducing the complexity of direct mechanical actuation systems
4Force
If locking forces are applied through the actuator mechanism, then the locking action is direct, but the actuator and housing are not robust enough to withstand the forces
Solution Approach 1:
The locking force application path is separated from the actuator mechanism by introducing a dedicated locking structure that directly transmits force from the corner mount to the vehicle frame, extracting the high-force transmission function from the actuator system
Solution Approach 2:
The locking system is divided into distinct functional components: the actuator provides positioning motion, while the locking structure provides force transmission and engagement, allowing each component to be optimized for its specific function without requiring all components to withstand maximum locking forces
Data Source
AI summary
A locking assembly includes a horizontal locking structure movable between a first position, in which the horizontal locking structure is arranged to protrude into a horizontal portion opening of a corner mount to restrict movement of the corner mount in a horizontal direction, and a second position to release the corresponding horizontal movement restriction. The locking assembly also includes a vertical locking structure mechanically connected to the horizontal locking structure, the vertical locking structure being movable between a third position, wherein a portion of the vertical locking structure is arranged in an opening of a vertical side of the corner mount to restrict movement of the corner mount in a vertical direction, and a fourth position to release the corresponding vertical movement restriction. An actuator member is structured to control the positions of both the horizontal locking structure and the vertical locking structure by a linear movement.