Container Automatic Lock

grabcad

My idea was to design an inexpensive and reliable mechanism for automatic connection and disconnection containers with minimal corrections to the container and spreader. I ran to the idea that when the spreader is connected to the container the container must be unlocked by the container below, and the upper container will not unlock containers below. To transfer the force of the actuator arm to fork used a cable as the brakes of the bike. Torsion spring is installed on the fork that is constantly strained position, so that when Spreder come to connect to the container, presses the actuator arm that pulls the cable and overcomes the spring force and returns fork Twist Lock to the unlocked position when the container is ready to separate from the container below . During the separation of the container spreader activation arm is released and the spring force is back in releasing position, the same spring locked two containers together. Twist Lock shown in the pictures is free to rotate and adjust its rotation opening the container, in case this is not enough reliable solution to Twist lock can be installed torsion spring much weaker than one on the fork that will keep Twist lock in the unlocked position until it overcomes the force stronger springs of fork. Twist lock plate is intended to be welded to the top of the container, the test cases can be screwed screws. On spreader envisaged corrections to provide connecting Twist Lock. The mechanism with handle and cable can be installed inside the container (on the wall) to extend the lifespan with proper sealing and minor changes in the design the activation handle