Closure systems particularly intended for high speed aircraft and designed with an inwardly opening closure which can be removed during flight. A wheel or roller is provided at the bottom of the closure so that it can be readily moved to an out-of-the-way storage location by a single person. The closure is supported at its lower end by a floor-mounted bracket which can be detached to provide a clear pathway to the doorway which the closure is designed to block.
Device for facilitating the lowering of a landing gear by gravity, comprising at least on roller device (4) positioned on at least one closing panel (2) of the hatch for the landing gear in a contact area with the tire (1a) of the landing gear of an aircraft (7) on initiating its descent, the roller device (4) comprising a rigid roller device which can rotate freely about its axis (4a), and being positioned such that its axis is perpendicular to the path of the tire (1a) so that the tire will make the roller device (4) turn without sliding over it.
A compact aircraft door sill protector of simple design for use in protecting door sills and door locking spools of the character found in a typical aircraft cargo bay. The apparatus includes a sill protector plate that, in its deployed position, covers the door sill and in its stowed position folds conveniently into the area immediately adjacent the cargo bay door opening. In its deployed position, the sill protector plate is rigidly supported by novel support arms that swing into protective engagement with the door locking spools.
The present invention provides a door operating system for opening and closing a door covering an exit opening of an aircraft. More particularly, the present invention provides a door operating system for opening and closing a plug type door typically located on the lower passenger deck of an aircraft. The door operating system includes a frame that is connected to the door of the aircraft and defines a pivot for the door. Connected to the frame is a torque drum and linkage system. The door operating system also includes a motor and a cable drum attached to the opposite end of the track. A cable is connected to the cable drum, the torque drum, and the frame. When opening the door, the motor turns the cable drum, which thereby pulls the cable. The cable rotates the drive torque drum and causes the door to be rotated about the pivot thereby moving the door upwardly and inwardly away from the exit opening. After the door has moved away from the exit opening, the cable pulls the frame such that the frame slides along the track and is moved lengthwise with respect to the aircraft away from the exit opening. To close the door, the above operations are reversed. As an aid to opening and closing the door, the door operating system also includes an interlock system that prevents the door from being moved lengthwise along the track until the door has been fully rotated upwardly and inwardly by the torque drum.
A quick-change track lock for securing interior-design articles on C-shaped retaining tracks on a floor or walls in an airplane, a helicopter or a spacecraft includes a main body, a detent member for fixing the track lock in a retaining track, a locking body having mushroom-shaped locking members operable for engagement with undercut portions of the retaining track and a pivotable actuating lever cooperating with the locking body to displace the latter relative to the main body. The locking body is guided in the main body such that a distance between each locking member and clamping edges of the main body becomes smaller when the locking body is displaced from one placed position to a locked position.
This invention provides a mounting structure 10 for releasably securing an auditorium seating unit to the floor. The mounting structure includes a bracket support 12 which is a rectangular casing 32 equipped with openings 40 & 42 interconnected with a pathway slot 46. The mounting structure includes a plate member 16 that is permanently part of the leg or stanchion of the seating unit. The plate member has a stud fastener 52 and a nut/bolt arrangement 62 that depends from the plate member and are received in the openings 40 & 42. The stud 52 and the nut/bolt arrangement 62 are received in the pathway slot 46 and the fasteners 52 & 62 are guided into the openings 40 & 42. The stud 52 and nut/bolt 62 secure the seating unit to the bracket support 12. Cover plates 114 serve to cover the exposed bracket support 12 absent the seating unit 28. The plate member is equipped with a guide element 102 to facilitate locating the openings when restoring the seating unit to this auditorium.
