BUS FOR AIRPORT USE

Abstract: Bus for airport use with the engine on the roof and with hydraulic or electrical transmission to the drive wheels, to give a completely free interior to allow passenger flow along its axis.

Description: Bus for airport use Marchionni Mauro, Via Adolfo Vigorelli 19, Rome, Italy This invention concerns a bus for airport use of new conception for operation head on and perpendicular to aircraft. The problem of transporting passengers from the terminal to the aircraft is resolved with one of the three following methods: 1) Loading bridge (or jet way) method, in which the passengers enter the airplane via mobile ramps which connect the terminal directly with the airfraft. 2) Mobile lounges (such as plane mate) method, in which large mobile and liftable rooms receive the passengers from the terminal and carry them through the taxi area to be left off directly at the airplane door. 3) Bus method, in which buses of known type effect horizontal movement of the passengers, while classical loading steps are used for vertical movement. An analysis of the advantages and disadvantages of each of the various methods shows that the best system for transferring passengers from the terminal to the aircraft is the bus, since: - it is the most economical to acquire - it reduces infrastructure costs of the terminal and taxi areas - it allows simple division of arriving and departing passengers. However, this method involves.the serious problem that current buses cannot operate head on and perpendicular to the aircraft since they all have side exits. They must therefore pull alongside the plane, at a safe distance, with resulting problems in maneuvering, while passengers are left unprotected from the weather in dangerous operating areas. Current buses cannot operate head on to the aircraft because, since the floor cannot be very far from the ground (25-30 cm) or the passengers find it difficult to disembark, the engine and the transmission impede regular passenger flow from the head of the vehicle. The aim of this invention is to realize a bus for airport use which can operate head on, perpendicular to the aircraft. This aim is achieved with a bus with an engine, preferably thermal, on the roof, with hydraulic or elèc- trical transmission to the drive wheels, to create a completely free interior to allow passenger flow along the axis. The invention is characterized by the use of four steer able wheels, with independent suspensions and with hydraulically and electrically motorized drive wheels to eliminate the bridge, differential and transmission organs. A preferred embodiment of the invention is shown in the attached drawings in figures 1, 2, 3, 4 and 5. Figure 1 shows a side view of the bus. Figure 2 shows a schematized horizontal section. Figure 3 shows a cross section of the device to vary the height off the ground, when the bus is in the lowest possible position. Figures 4 and 5 show, respectively, front and side axonometric views of the hydraulic motors installed on each drive wheel. The drawings show in detail thermal engine 1 installed on the roof of the bus A, preferably at one end, so as to minimize bulk and leave interior space 6 completely free for the passengers to enter and exit via the longitudinal doors 3, toward the automatic loading ramp 2 or the side emergency doors 4, with small driving cabings S at each end, to allow approach to and departure from the airfract and the terminal with no need to perform dangerous maneuvers in reverse. The support box for steerable wheel 8 is attached to the framework 7 of the bus A via refaced and chromeplated bar 9 for sliding and rotating said box, while said bar is joined to the pad with sealing gaskets 10, mobile inside contrast cvlinder 11 and connected to a penumatic generator in parallel with the pressur- ized oil line 12, to serve dual purposes as the elastic element for boxes 8 and the hydraulic cylinder to vary height from the ground, kept very low to fac militate passenger movement on and off the bus but raised during transit to go up hills and go over uneven terrain. In the case of hydraulic transmission, the installation of at least two motors 13 for each drive wheel, with rim 16, tube 17, disk brake 18 and clamp brake 19, connected to the refaced bar 9 via drive crown 14, moved by pinions 15, connected to the shafts of said motors 13, to allow normal transit of the loaded vehicle at standard speeds, using said motors 13 in parallel, as well as fast speeds with the vehicle empty for transfer between airports and from the manufacturer to the airport, and vice versa, using said motors 13 in series. Of course while the principle of the find remains fixed, the forms of realization and particulars of construction may be widely varied from that described here without however going beyond the bounds of the invention.

Claims: Claims: 1. Bus for airport use with engine on the roof and longitudinal entrance and exit doors for the passengers. 2. Bus for airport use as claimed in claimed in claim 1, wherein thermal engine 1 is installed on the roof of the bus A, preferably at one end, so as to minimize bulk and leave interior space 6 completely free for the passengers to enter and exit via the longitudinal doors 3, toward the automatic loading ramp 2 or the side emergency doors 4, with small driving cabins 5 at each end, to allow approach to and departure from the aircraft and the terminal with no need to ter- form dangerous maneuvers in reverse. 3. Bus for airport use as claimed in the preceding claims, wherein four steerable wheels are used, with independent suspensions and with hydraulically and electrically motorized drive wheels to eliminate the bridge, differential and transmission organs. 4. Bus for airport use as claimed in the nrecedinq claims, wherein the suntort box for steerable wheel 8 is attached to the framework 7 of the bus A via refaced and chrome-plated bar 9 for sliding and rotating said box , while said bar is joined to the pad with sealing gaskets 10, mobile inside contrast cylinder 11 and connected to a penumatic generator in parallel with the pressurized oin line 12, to serve dual purposes as the elastic element for boxes 8 and the hydraulic cylinder to vary height from the ground, kept very low to facilitate passenger movement on and off the bus but raised during transit to go up hills and go over uneven terrain. 5. Bus for airport use as claimed in the preceding claims, wherein at elast two motors 13 are installed for each drive wheel, with rim 16, tube 17, disk brake 18 and clamp brake 19, connected to the refaced bar 9 via drive crown 14, moved by pinions .15, connected to the shafts of said motors 13, to allow normal transit of the loaded vehicle at standard airport speeds, using said motors 13 in parallel, as well as fast speeds with the vehicle empty for transfer between airports and from the manufacturer to the airport, and vice versa, using said motors 13 in series.

Inventors: MARCHIONNI, MAURO
Applicants: MARCHIONNI, MAURO
Application year: 1982
Main classification: B62D47
IPC codes: B62D47, B60G3, B60K17