A ramp door closure apparatus is provided for recreational vehicles, having a recessed linear actuator both draw a cable from a mounting bracket on the ramp door adjacent to the RV opening, to raise and lower the ramp door, and then cam a locking pin fixed to the ramp door into a seal tight position after the ramp door is raised. Upon release of the locking pin from the cam when opening the door, an initial push is provided to facilitate downward rotation of the ramp door. The linear actuator is selectively detachable from the cable so as to allow manual raising and lowering of the ramp door from within the RV, by means of releasable pins accessed in the mounting structure.
Draw-tight Apparatus for Ramp Doors and the Like
2019-12-26
Patent
Elektronische Ressource
Englisch
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 / E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION , Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung |
O'brien's water-tight doors for ships
Engineering Index Backfile | 1897
EXTRUDED 3D RAMP/PACKAGING DEVICE FOR TIGHT PACKAGE REQUIREMENTS
Europäisches Patentamt | 2017
|