A retractable automatic twistlock arrangement 10 for connecting a container to a load surface of a rail platform or a trailer chassis, comprising; an automatic twistlock having a fastener element that includes a rotatable fastener shaft 22 with a twistlock head 23, and being operable between a locked and unlocked position by way of an activator spring 24 biased to the locked position; and a retraction assembly adapted to reversibly retract the automatic twistlock from an extended position above a load platform to a retracted position beneath a load platform. The automatic twistlock may remain in an extended position when engaging a corner casting of a container and retract into a housing unit when a non-corner casting engages the twistlock head. The retraction assembly may include a sliding retraction shuttle 32 with central channel to receive the shaft 22, concentric helical spring members 51, 52, a detachable base plate 40, and a central hollow cylindrical member 41 through which the shaft 22 is received. The arrangement may also include an indicator system comprising transmitters in electrical communication with the fastener elements, and signal providing indicators.
Retractable automatic twistlock arrangement
2023-09-27
Patent
Electronic Resource
English
IPC: | B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / B65D Behältnisse zur Lagerung oder zum Transport von Gegenständen oder Materialien [Container], z.B. Säcke, Beutel, Fässer, Flaschen, Dosen, Kästen, Büchsen, Schachteln, Packkörbe, Tonnen, Gläser, Flüssigkeitsbehälter, Trichtersilos, Transportbehälter , CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS |