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Aircraft door detector/warning device

a technology for aircraft doors and detectors, which is applied in bridges, instruments, transportation and packaging, etc., can solve the problems of no protection to keep the door from touching the floor

Inactive Publication Date: 2009-05-14
AIRPORT MECHANICAL SERVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the operator swings the door open to greet passengers, and the door is less than 2″ from the floor, there is no protection to keep the door from making contact with the floor.

Method used

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  • Aircraft door detector/warning device
  • Aircraft door detector/warning device
  • Aircraft door detector/warning device

Examples

Experimental program
Comparison scheme
Effect test

embodiment

Preferred Embodiment

[0016]Electro-mechanical motion sensing: The preferred embodiment uses a 22″×36″×2″ vinyl enclosed open cell foam insert with two aluminum foil sheets separated by a piece of perforated foam. When the sensing device is compressed ½″, the foil sheets touch each other completing an electrical circuit. Refer to FIG. 1 for a cross-sectional view of the sensing device. Another method is a limit switch that lies on its side. A flexible rod or arm extends beyond the switch staying parallel with the switch. When the flexible rod or arm is deflected, a set of contacts in the switch close completing an electrical circuit. One more method is a laser beam. While activated, anything interrupting the beam will cause a set of contacts to close completing an electrical circuit.

[0017]Positive stops: This device will stop after performing one cycle (determined by bridge type). Existing bridge limits are not affected. If the bridge down limits (solid state or mechanical) are activa...

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PUM

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Abstract

Disclosed is an electromechanical system for minimizing passenger door contact with the Passenger Loading Bridge (PLB) floor and subsequent damage to said door, during passenger loading or off loading. The system, as configured at the Cab entry, senses the proximity of the aircraft door by contacting a sensing pad, attached to the PLB floor. This initiates a sequence of events. 1) Both visual and auditory alarms are initiated to alert the passenger loading agents and / or the bridge operator of a fault. 2) The PLB is moved down and away from the door sufficiently to prevent the PLB floor from coming in contact with the door. The loading agents or PLB operator can then perform the necessary steps to reset the device and continue loading.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]Not ApplicableFEDERALLY SPONSORED RESEARCH[0002]Not ApplicableSEQUENCE LISTING OR PROGRAM[0003]Not ApplicableBACKGROUND OF THE INVENTION[0004]1. Field of Invention[0005]This invention relates to passenger loading bridges, which are self leveling, and a means of preventing the loading bridge floor from contacting and damaging the aircraft door during passenger loading and unloading functions.[0006]2. Prior Art[0007]The Airlines have had a problem with aircraft passenger entrance door damage. The door damage occurs when the door makes contact with the Passenger Loading Bridge (PLB) floor while loading the aircraft. The PLB is equipped with an auto level device that is supposed to keep the floor at a set level in relation to the aircraft. As passengers are boarding or exciting the aircraft, the resulting change in weight causes the aircraft to elevate or lower. Bridge function before apparatus is installed: The existing apparatus has an opera...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B64F1/305A61B18/00A61B18/14A61B18/22
CPCA61B18/1492A61B18/22A61B2018/00011A61B2018/1467A61B2018/00291A61B2018/00494A61B2018/00065B64F1/305G08B21/182
Inventor NELSON, BARRY MICHAELNELSON, SPENCER RAY
Owner AIRPORT MECHANICAL SERVICES