Fluid sprinkling – spraying – and diffusing – With mobile tank-type supply means – Vehicle drawn or carried
Patent
1983-12-16
1986-01-21
Cherry, Johnny D.
Fluid sprinkling, spraying, and diffusing
With mobile tank-type supply means
Vehicle drawn or carried
239176, 239456, 239587, B05B 900
Patent
active
045653216
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a vehicle for deicing aircraft and of the type comprising an undercarriage having a lifting device which at its free end carries an operation platform, and having a spray device for spraying an aircraft with a deicing fluid, said spray device comprising a pump and an associated spray nozzle.
In the conventional vehicles of this type the operation platform is a basket and the person spraying the aircraft stands in the basket and carries the spray nozzle which is manually directed to the areas of the aircraft to be sprayed. This prior art has the disadvantage that the operator is exposed to the recoil from the spray nozzle and as the range of the nozzle further is very limited, frequent shifting of the carriage carrying the operation platform is required.
The deicing equipment according to the present invention is characteristic in that the lifting device is adapted for elevating and lowering so as to retain the centre of gravity of the total mass of the equipment within the area determined by the wheels of the carriage, that the operation platform is designed as a closed protective cabin pivotally supported in a horizontally orientated plane, that the cabin structure carries a longitudinally adjustable lightweight boom carrying at its free end the spray nozzle, and that the nozzle is connected to means remote-controlled from the cabin for pivotal movement of the nozzle about two axes extending perpendicular to each other. This provides a vehicle that far easier and less manpower requiring than the hitherto known vehicles, combined with a substantially improved possibility for operational observation and an effective protection of the operator, allows spraying of even large parts of an aircraft without necessitating shifting of the carriage as the lightweight boom due to its longitudinal adjustability may be moved close to the respective parts of the aircraft even if they are located far apart, and due to the double pivotal movability of the nozzle, spraying is possible of upwardly and downwardly extending surfaces as well as laterally extending surfaces of the aircraft.
With a view to further increasing the range of the vehicle, the lightweight boom may according to an embodiment of the invention be pivotally supported in the vertical direction relative to the operation platform, and the lifting device may be a parallelogram linkage.
It is particularly advantageous if the two axes about which the nozzle is pivotal are intersecting at a point located in the longitudinal axis of the spray direction of the nozzle as it is thereby obtainable that the reactive forces provided by the jet ejected from the nozzle will impart no torque to the spray nozzle.
The invention will be explained in detail below with reference to the drawing in which
FIG. 1 is a side elevational view of an embodiment of the deicing equipment according to the invention,
FIG. 2 is the equipment of FIG. 1 seen in direction of arrow II in FIG. 1,
FIG. 3 is a side elevational view of a nozzle means for the equipment of FIG. 1,
FIG. 4 is a plan view of the nozzle means of FIG. 3,
FIG. 5 is the nozzle means of FIG. 3 seen in direction of arrow V--V in FIG. 4,
FIG. 6 is an activator for the nozzle means of FIG. 3,
FIG. 7 is a side elevational view, partially in cross section, of an embodiment of a nozzle for the nozzle means of FIG. 3, and
FIG. 8 is an illustration of a hydraulic plan for controlling the nozzle arrangement and the nozzle according to the invention.
In the drawing numeral 1 denotes a motor vehicle carrying on its chassis various equipment including two tanks 2 for spray fluid. The chassis supports an operation platform in the form of a closed protective cabin 3 connected to the chassis by means of a parallelogram linkage 4. The latter comprises a heavy main boom 5 on either side of which a parallel control lever 6 is disposed. A hydraulic cylinder 7 is disposed between the main boom 5 and the rear end of the vehicle 1, and by extension of said cylinder drive the cabin 3 is moved between the two positions show
REFERENCES:
patent: 2711929 (1955-06-01), Nielsen
patent: 3010533 (1961-11-01), Ross
patent: 3074649 (1963-01-01), Atkinson
patent: 3153510 (1964-10-01), Brannfors et al.
patent: 3243123 (1966-03-01), Inghram et al.
patent: 3531054 (1970-09-01), Pulk
patent: 3599722 (1971-08-01), Davidson et al.
patent: 4007793 (1977-02-01), Hux et al.
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