Description of the Prior Art As it is widely known, a common habit of a number of vehicle owners is to wash their cars during the weekend, the washing usually being appropriately performed in a car-wash or at owner's own garage or backyard. To the owners, as well as other people responsible for them, such as drivers, parking lot attendants and others, the periodic washing procedure is a complement to the vehicle's maintenance.

It is also very common to perform the washing in a gas station, where the washing is professionally performed or, as it is generally known, the"car-washes"that can be found almost anywhere in the big cities, which use to wash the cars in a satisfactory manner, improving the washings with polishing waxes, protective waxes, etc, but these cleanings do not have the efficiency and the complete service provided by the gas stations.

As it is obvious, when the user washes its own car, generally it tries to make it in a very special way, caring particularly for their maintenance. Although it is an usual practice, it does not correspond to the ideal efficiency, because the parts of difficult access, such as the chassis and the engine are usually postponed, to be performed lately by professionals in a gas station, for instance.

This occurs due to the price charged by the gas stations to perform this service, because, due to the system employed in the professional washing, generally wells and/or ramps, lifters, pumps, not to mention the intensive use of specialized personnel, impose to the gas station owners the requirement to obtain a financial return on their investments, making the price too high for the majority of the population.

A solution, already highly spread and which combine the quickness to a certain quality to the national habit of washing and maintaining the vehicles, is the so called"quick

washers", which, for a price which is accessible to the majority of the users, perform a satisfactory washing, but this type of service does not solve the problem of washing the parts of difficult access, such as the chassis.

Some solutions for the washing of chassis of trains, wagons, trucks, etc, and which could eventually be used for several other types of vehicles and equipment, are those used through mechanisms of great size, such as, for example, the robot systems installed in fixed platforms and/or rails, which system consists of an oscillating mechanism connected to pumps or pneumatic centers of high volume and pressure, which requires, for the washing, that the vehicle be positioned on the platform, and the oscillating mechanism, through the command of a program, goes through all the extension of the inferior part of the vehicle, on the rails, oscillating in an"angle"and"sweeping" the chassis during the cycle pre-determined by the program.

This solution, despite of being efficient, restricts its application to wagon maneuvering patios or great transporters, its commercial use being almost impossible, since the acquisition and installation of such an equipment would require such an investment of the gas station owners or"quick washers"which could not be remunerated by the price charged for their services.

Aiming to solve these inconveniencies, and mainly, to make viable a more complete washing both by the professionals as by the users themselves, it has been created the present device to be used in the washing of chassis in general, which in a simple and efficient way, at a reduced cost, allows that the chassis of vehicles, as well as surfaces of a difficult access, be washed with pressurized water jets, allowing also, if required, the possibility to cover the washed surface with a coating of castor oil or any other appropriate product.

In order to perform the objective above, it has been created a portable device to be connected to the professional or residential pressurizer and endowed with locomotion mechanisms, such as rollers or mats which allow an easy movement. As already mentioned, such device is connected to a pressurizer through an appropriate hose, while an extensible cable, endowed with a trigger or pistol, controls a hose connected to the portable

device, which by its turn is introduce below the chassis or any other surface of a difficult access, spraying and sweeping such surface with water jets.

, or more specifically, it is a new portable device of an easy dislocation which, being connected to a residential or professional pressurizer, allows itself to be hand controlled, washing the chassis of the vehicles or any other surface of a difficult access, without requiring the vehicle or other equipment to be lifted, or further, without requiring that the washing agent enters bellow the vehicle or equipment.

An specific realization presently preferred of this invention patent is illustrated as an example in the attached designs and it is described here with details. However, it must be understood that, although the present invention patent be susceptible of several modifications and alterations in its format and dimensions, the present descriptive report does not intend to limit the shapes and dimensions herewith presented, covering all modifications and alternative realizations which are within the spirit and the scope of this invention patent, as defined by the attached claims.

Brief Description of the Drawings The present invention will be described in greater detail hereinafter with specific reference to its presently preferred embodiment shown in the attached drawings, which are not in any way a limitation of the scope of the invention, and wherein: Figure 1 is a perspective view of the device for washing the chassis of vehicles according to the present invention; Figure 2 is a schematic representation of the use of device for washing the chassis of vehicles according to the present invention ; Figure 3 is a sectional view illustrating the inner structure of the device for washing the chassis of vehicles according to the present invention; and

Figure 4 is a schematic indication of the different positions the device for washing the chassis of vehicles according to the present invention should be positioned under the car in order to perform an ideal washing of the chassis.

Best Mode for Carrying Out the Invention A preferred embodiment of the present invention is shown for illustrating purposes in the accompanying drawings and shall be described in details hereinafter. However, it is to be understood that while several variations and modifications of the present invention will become apparent to those skilled in the art, the present specification is not intended to limit the invention to the particular forms and/or dimensions described herein, but instead to cover all such modifications and alternate embodiments that may be within the spirit and scope of the invention as shown in the accompanying claims.

With reference more particularly to the drawings, Figure 1 is a perspective view of the device 1 for washing the chassis of a vehicle according to the present invention which comprises a body 2 mounted on a skidding frame such as sliding mats 3,4 which allows for a rectilinear reciprocal movement of the device over the floor controlled by a handle 5 conveniently hinged at the back portion of said body 2.

Said body 2 defines a careening made of a suitably resistant plastic material which can be transparent or not, this careening having rounded lines and being shaped in such a way as not to allow the accumulation of water over its outer surface.

The device 1 is portable and can be manually directed through said handle 5 to slide over the mats 3,4, which can also be substituted by wheels or the like.

A water pump P is connected to the device 1 through reinforced hoses M, MI formed with suitable connecting means at both ends, said pump P being either a professional or residential model and the hoses being reinforced in order to allow for the use of the device with the high pressures usually provided by the industrial pumps.

The first hose M has a control trigger 7 mounted at its end opposite to the pump P, in a location suitable to be actuated by the user from a confortable position, said trigger 7 connecting to the second hose M1 which runs along the handle 5 to

the device 1. Snap on connecting means 6 can be used to attach the hose Ml to the handle.

Trigger 7 controls the flow of the pressurized water from the pump P to the device 1.

Inside said body 2, second hose M1 is connected to a distributing 8 having one or more discharge manifolds 9 made of copper, aluminum or other convenient material having adjustable spraying or aerating nozzles 10, the nozzles being adjusted in order to be compatible with the pressure coming from the pump P and to control the preferred type of discharge spray.

The spraying nozzles allow the pressurized water to exit preferably in the form of a fan shape or high impact jets, in accordance with the manual adjustment made by the user, in order to evenly spray the surface of the chassis from an appropriate angle for a perfect washing.

In addition to the above, the device for washing the chassis of a vehicle according to the present invention can also have a third hose 11, mounted parallel to the previous ones, also coupled to the cable 5 through snap on connecting means 6 for use with other complementary products, such as castor oil.

This additional hose 11 being connected to said trigger 7 at one end, said end having a suitable connecting means such as a screw to receive the mouth of a bottle or similar 12 containing said complementary product to be sprayed, while its opposite distal end is provided with a spraying nozzle 13 which is responsible for spraying the product.

The present invention has been described and illustrated in connection with a presently preferred method and apparatus for carrying it out, however, those'skilled in the art will readily understand that other modifications and variations may be resorted to without departing from the spirit and scope of the invention. Such modifications and variations are considered to be within the purview and scope of the invention as defined in the accompanying claims.