WO2023073516A1

WO2023073516A1 - Cleaning device for trains

Info

Publication number: WO2023073516A1
Application number: PCT/IB2022/060102
Authority: WO
Inventors: Vincenzo RAIMONDI
Original assignee: Raimondi Engineering Societa' A Responsabilita' Limitata
Priority date: 2021-10-27
Filing date: 2022-10-20
Publication date: 2023-05-04
Also published as: IT202100027569A1

Abstract

The present disclosure refers to a cleaning device (1) for trains, the device (1) comprising: - at least one brush (3), configured for cleaning a predetermined portion of a train by means of a mechanical action for removing dirt deriving from its movement relative to said predetermined train portion; - at least one support (2, 7, 8) for said at least one brush (3), configured for being anchored to the ground at a railway (10) and configured for sustaining the brush (3) in at least one predetermined position; - a base (6) for the support (2, 7, 8), said base being configured for being engaged on a ground in proximity to the railway (10); wherein the support (2, 7, 8) is movable, and wherein the cleaning device (1) for trains comprises at least: - an operative configuration, in which the support (2, 7, 8) takes on a first position with respect to the railway and/or with respect to the train, and in which the support (2, 7, 8) sustains the brush (3) in at least one first operative position adapted to allow the cleaning of said predetermined portion of a train; and - a maintenance configuration, in which the support (2, 7, 8) takes on a second position with respect to the railway (10) and/or with respect to the train, and in which the support (2, 7, 8) sustains the brush (3) in a maintenance position adapted to allow a substitution or a maintenance of the brush (3) itself.

Description

CLEANING DEVICE FOR TRAINS

Background of the invention

The invention relates to the field of cleaning devices for vehicles, and in detail concerns a cleaning device for trains.

Known art

Trains are vehicles that move on rails in order to transport goods or people between a first and second location. Trains are substantially provided with a locomotive, and typically comprise at least a goods wagon or a car for the transport of passengers; more cars or goods wagons can be present in sequence in a train. T rains can also be provided with a rail car, a particular locomotive which integrates motor apparatuses and that, at the same time, is used for transporting passengers. A locomotive may be electrically powered or alternatively equipped with a heat engine, such as for example an endothermic engine.

Trains move on a railway, or more precisely way, that comprises typically two metal rails of steel, called rails or tracks, kept parallel to each other by securing them with sleepers, for example of wood, or of prestressed concrete, through track bolts. The distance between the two metal guides is named gauge, and corresponds substantially with the wheel base of the wheels of the carriages of the locomotive and/or of the goods wagon and/or of the car. Some gravel, or e.g. railroad ballast, is typically arranged at the railway for realizing a stabilization ballast of the metal guides and of the sleepers.

During the use, the train gets dirty. The dirt of the train can be due to several factors including but not limited to:

- insects, which mainly impact the front portion of the locomotive during the advancement;

- dust;

- soot, in particular when the locomotive is equipped with a heat engine such as a diesel or coal engine;

- iron dust or iron oxide, resulting from wear of the rail as a result of contact with the wheels of carriages, above all during the acceleration and braking steps of the train;

- friction material, resulting from the wear of brake pads.

Trains are typically washed with rotary brush devices, which act on the locomotive and cars or goods wagons to clean their sides and roof and/or front or rear portion. Mere washing with water or water added with surface-active agents is not sufficient to remove dirt, in particular the one with a metal component, which in the long run risks to chemically affect the painted portion of trains (or similarly the film that is sometimes used as the outer covering of trains); a combined action of water and a mechanical action provided by the brush is therefore required. Brushes are radially installed on a central shaft so as to form one roller which, with rotation, expands due to centrifugal force and engages, during use, at least partially tangentially, a surface of the train.

Brush devices of known type are typically positioned in proximity of a section of railway destined to wash trains. The brushes, oriented so as to rotate around a vertical or horizontal axis, are positioned on substantially fixed supports. The train is translated relative to the brushes to cause a complete cleaning of the entire train set.

Brushes are subject to wear, as they are realized in a sufficiently soft material, in particular in plastic material. The substitution of brushes, or even only their maintenance, is demanding. Considering the size of the train, in fact, brushes typically have a linear development of two or even three meters or more, and their weight is typically very high.

The substitution of brushes typically occurs through a release of their central shaft from a holder. The release of their shaft may therefore occur at a significant height. This not only contributes to cause a risk of a fall for an operator, but also risks associated with the fall of the brush itself, which if it were to hit the operator could easily cause him serious injuries.

Objects of the invention

The purpose of the present disclosure is to describe a cleaning device for trains that allows to solve the drawbacks described above.

In particular, it is a purpose of the present disclosure to describe a cleaning device for trains that allows to perform a maintenance and/or to easily substitute cleaning brushes for trains, mitigating the risks of fall and/or injuries of the operator.

In particular, it is a purpose of the present disclosure to describe a cleaning device for trains that allows to reduce the risk of electrocution of the operator when a brush maintenance is carried out at an electrified line, in particular not de-energized.

It is also a purpose of the present disclosure to describe a cleaning device for trains that allows to perform the maintenance on the brush without disconnecting the electrified line.

It is also a purpose of the present disclosure to describe a cleaning device for trains that allows an effective cleaning of the train.

Summary

The cleaning device for trains will now be described in some of its salient aspects. These aspects may be combined with each other in an appropriate manner, or with portions of the detailed description that follows, or also with one or more of the attached claims.

According to an aspect, a cleaning device (1) for trains is described herein, the device (1) comprising: - at least one brush (3), configured for cleaning a predetermined portion of a train by means of a mechanical action for removing dirt deriving from its movement relative to said predetermined train portion;

- at least one support (2, 7, 8) for said at least one brush (3), configured for being anchored to the ground at a railway (10) and configured for sustaining the brush (3) in at least one predetermined position;

- a base (6) for the support (2, 7, 8), said base being configured for being engaged on a ground in proximity to the railway (10); wherein the support (2, 7, 8) is movable, and wherein the cleaning device (1) for trains comprises at least:

- an operative configuration, in which the support (2, 7, 8) takes on a first position with respect to the railway and/or with respect to the train, and in which the support (2, 7, 8) sustains the brush (3) in at least one first operative position adapted to allow the cleaning of said predetermined portion of a train; and

- a maintenance configuration, in which the support (2, 7, 8) takes on a second position with respect to the railway (10) and/or with respect to the train, and in which the support (2, 7, 8) sustains the brush (3) in a maintenance position adapted to allow a substitution or a maintenance of the brush (3) itself.

According to a further non-limiting aspect, in the maintenance configuration the brush (3) takes on a height lower than a height taken on in the operative configuration and/or takes on a spatial orientation different from the spatial orientation taken on in the operative configuration.

According to a further non-limiting aspect, in the second position the support (2, 7, 8) is tilted and/or translated and/or rotated with respect to the first position and/or has at least one portion lying at a height lower than a height taken on in the first position.

According to a further non-limiting aspect, the railway (10) comprises an electrified line (100).

According to a further non-limiting aspect, said second position is destined to increase a distance (h) between an electrified line (100) and at least the brush (3) with respect to a distance (h) between the electrified line (100) and at least the brush (3) when the support (2, 7, 8) lies in said first position.

According to a further non-limiting aspect, the support (2, 7, 8) is movable in rotation with respect to at least a first substantially horizontal axis (X); the device (1) comprising a pin (72) arranged on said first axis (X) and at which the support (2, 7, 8) is configured to rotate.

According to a further non-limiting aspect, the pin (72) is fixed to the support (2, 7, 8) at a lower portion of the support (2, 7, 8) and rotates, during use, within at least one flange (71) fixed to the base (6).

According to a further non-limiting aspect, alternative to the previous aspect, the pin (72) is fixed to the base (6) and rotates, during use, within at least one flange (71) fixed to the support (2, 7, 8). According to a further non-limiting aspect, in said first operative position the brush (3) is oriented in a substantially vertical direction or comprised in a range of 30°, preferably 20°, with respect to a vertical axis.

According to a further non-limiting aspect, the brush (3) comprises a plurality of blades and/or strips and/or fibers.

According to a further non-limiting aspect, the plurality of blades and/or strips and/or fibers is realized in plastic material.

According to a further non-limiting aspect, the brush (3) is an at least partially cylindrical brush.

According to a further non-limiting aspect, the brush (3) can comprise a first substantially cylindrical portion and a second portion of gradually increasing diameter.

According to a further non-limiting aspect, the second portion lies during use above the first portion.

Alternatively, according to a further non-limiting aspect, the brush can have an overall truncated cone shape, with an increasing diameter - along its longitudinal development - from top to bottom or with an increasing diameter from bottom to top.

According to a further non-limiting aspect, in said maintenance position the brush (3) is oriented along a substantially horizontal direction or comprised in a range of 30°, preferably 20°, with respect to a horizontal axis.

According to a further non-limiting aspect, the brush (3) is, during use, rotary.

According to a further non-limiting aspect, the device (1) comprises at least one motor group or gearmotor (41 , 42) configured for putting in rotation the brush (3) at least when in said at least one first operative position.

According to a further non-limiting aspect, the motor group (41, 42) is positioned substantially at said support (2, 7, 8).

According to a further non-limiting aspect, the base (6) is fixed with respect to said railway (10) or the base (6) is movable with respect to said railway (10), in particular at least locally axially movable at least along a direction substantially parallel to a main development direction of the railway (10).

According to a further non-limiting aspect, the device (1) comprises a movement group (61 , 62, 63), configured for causing a movement of the support (2, 7, 8) between the first and the second position and/or configured for causing a movement of the brush (3) at least between the at least one first operative position and the maintenance position. According to a further non-limiting aspect, the movement group comprises at least one between a linear actuator, in particular a hydraulic linear actuator, and a rotary actuator operatively coupled with a first flexible transmission element.

According to a further non-limiting aspect, the rotary actuator (61) comprises at least one roller (62) on which, during use, is wound or unwound said first flexible transmission element (73), said first flexible transmission element (73) comprising at least one among a cable, in particular a metallic cable, a chain, or a belt.

According to a further non-limiting aspect, said first flexible transmission element (73) comprises a portion, in particular an end, engaged at a first predetermined portion of the support (2, 7, 8), in particular at which said pin (72) lies.

According to a further non-limiting aspect, said first flexible transmission element (73) comprises a portion, in particular an end, rotatably engaged at a first predetermined portion of the support (2, 7, 8).

According to a further non-limiting aspect, said rotary actuator (61) comprises at least one between an electric motor and/or a crank actuation and acts on said roller (62) in order to cause a rotation thereof in accordance with a rotation of the electric motor and/or of the crank actuation. Preferably, the crank actuation can comprise an opportune transmission at man's height for facilitating its use by an operator.

According to a further non-limiting aspect, the movement group (61 , 62, 63), when actuated, is configured for determining at least one switch of the position taken on by the brush (3) at least between the at least one first operative position and the maintenance position and, optionally, for determining at least one switch of the position taken on by the support (2, 7, 8) at least between the first position and the second position.

According to a further non-limiting aspect, the device (1) comprises at least one first support pillar (5), operatively fixed to the base (6) and comprising at least one transmission pulley (51) within which, during use, the first flexible transmission element (73) slides.

According to a further non-limiting aspect, the rotary actuator (61) is operatively coupled with a second flexible transmission element (73), said second flexible transmission element (73) comprising at least one among a cable, in particular a metallic cable, a chain, or a belt.

According to a further non-limiting aspect, said second flexible transmission element (73) comprises a portion, in particular an end, fixed at a second predetermined portion of the support (2, 7, 8).

According to a further non-limiting aspect, the device (1) comprises a second support pillar (5), operatively fixed to the base (6) and comprising at least one transmission pulley (51) within which, during use, the second flexible transmission element (73) slides.

According to a further non-limiting aspect, said second support pillar (5) is substantially parallel to said first support pillar (5). According to a further non-limiting aspect, the support (2, 7, 8) comprises at least one movable pillar (7) substantially side-by-side to at least the first support pillar (5), optionally wherein the movable pillar (7) is positioned between the first support pillar (5) and the second support pillar (5).

According to a further non-limiting aspect, the support (2, 7, 8) comprises at least one first arm (2), and optionally a second arm (8); said first arm (2), and optionally said second arm (8), being movable for causing a movement of the brush (3) between the first operative position and a second operative position, wherein the second operative position is further away from the train and/or from the railway (10) with respect to the first operative position.

According to a further non-limiting aspect, the support (2, 7, 8) comprises one auxiliary running board (21) connected to the first arm (2) and to the second arm (8), optionally connected to the first arm (2) at a first end of the first arm (2) and/or connected to the second arm (8) at a first end of the second arm (8).

According to a further non-limiting aspect, the device (1) comprises at least one auxiliary motor group (75) configured for causing a movement of the at least one first arm (2) and preferably for causing a movement of the first arm (2) and of the second arm (8).

According to a further non-limiting aspect, the support (2, 7, 8) is configured for allowing a rotation of the first arm (2) and/or of the second arm (8); said rotation optionally occurring on a substantially horizontal plane, in particular (preferably exclusively) when said support (2, 7, 8) lies in said first position.

According to a further non-limiting aspect, the auxiliary motor group (75) is configured for causing and/or controlling a movement of the at least one first arm (2), preferably of the first arm (2) and of the second arm (8), with respect to the movable pillar (7), said auxiliary motor group (75) is configured preferably for causing a rotation of the at least one first arm (2), optionally of the first arm (2) and of the second arm (8) with respect to the movable pillar (7).

According to a further non-limiting aspect, the auxiliary motor group (75) comprises at least one electric motor.

According to a further non-limiting aspect, said electric motor comprises at least one shaft operatively connected at least to the first arm (2) directly or indirectly, for example through a gearmotor.

According to a further non-limiting aspect, the device (1) comprises at least one support element (9), connected to the support (2, 7, 8) at a predetermined portion thereof, in particular at a first end portion thereof.

According to a further non-limiting aspect, said support element (9) is configured and destined to abut against the ground when said support (2, 7, 8) lies in the second position and/or when the brush (3) lies at the maintenance position.

According to a further non-limiting aspect, said support element (9) is configured for being removably mountable to the support (2, 7, 8), in particular for being mounted to the support (2, 7, 8) when the device (1) is brought into the maintenance configuration and/or the brush (3) lies at the maintenance position, and for being removed from the support (2, 7, 8) when the device (1) lies in the operative configuration.

According to a further non-limiting aspect, the device can be configured for preventing the rotation of the brush (3) and/or for preventing the actuation of the motor group (41, 42) at least when brush (3) lies in the maintenance position and/or at least when the support (2, 7, 8) lies in said second position.

According to a further non-limiting aspect, the device comprises at least a position sensor configured for detecting at least a position taken on by the support (2, 7, 8), in particular configured for detecting at least when the support (2, 7, 8) takes on said second position and for preventing the actuation of the motor group (41 , 42) at least when the support (2, 7, 8) lies in said second position.

According to a further non-limiting aspect, the position sensor is configured for causing the possibility of re-actuation of the motor group (41 , 42) when the support (2, 7, 8) lies in a position different than said second position.

According to the present disclosure is also described a method of maintenance of a cleaning device for trains according to one or more of the aspects here described, comprising a step of movement of the support (2, 7, 8) between said first position and said second position, and a step of maintenance and/or substitution of the brush (3) when the support (2, 7, 8) is in said second position.

According to a further non-limiting aspect, the method comprises a step of disconnection of the brush (3) from the support (2, 7, 8) when said support (2, 7, 8) lies in said second position.

According to a further non-limiting aspect, the method comprises a shutting off of the motor group (41 , 42) of said brush (3) when said brush lies in the maintenance position and/or when the support (2, 7, 8) lies in said second position.

According to a further non-limiting aspect, the step of disconnection of the brush (3) from the support (2, 7, 8) comprises a disconnection of the brush (3) from the first arm (2) and from the second arm (8).

According to a further non-limiting aspect, the method comprises a step of control of at least a first device (1) through a data processing unit.

According to a further non-limiting aspect, the method comprises a step of control of a first device (1) and of a second device (1) through a data processing unit, in particular wherein the step of control determines a simultaneous actuation of the brush (3) of the first device (1) and of the second device (1); said simultaneous actuation determining a simultaneous rotation of the brush (3) of the first device (1) and of the brush of the second device (1).

According to a further non-limiting aspect, the method comprises a step of control of a first device (1) through a data processing unit, in particular wherein the step of control determines an actuation of the brush (3) of the first device (1). According to a further non-limiting aspect, the method comprises the reception of a position signal of said support (2, 7, 8) and/or of said brush (3) from a position sensor, and the shutting off is determined by said position signal.

According to a further non-limiting aspect, said position signal is an electric signal or an optical signal.

According to the present disclosure, it is also described a cleaning plant for trains, said plant comprising at least a first device (1) and a second device (1) in accordance to one or more of the aspects here described.

According to a further non-limiting aspect, the first device (1) and the second device (1) are positioned at a predefined distance the one from the other and/or are respectively positioned on a first side and on a second side of a railway (10).

According to a further non-limiting aspect, the first device (1) and the second device (1) define a portaltype cleaning plant for trains.

The invention will be hereinafter described in some preferred embodiments with reference to the attached figures, which concern a specific non-limiting embodiment of cleaning device for trains. A short description of the figures is given hereinafter.

Figure 1 shows a perspective view of a cleaning device for trains in accordance to the present invention, represented in proximity of a railway and positioned in proximity of an electrified line. The brush of the device represented in figure 1 is positioned in an operative position for allowing the cleaning of the train.

Figure 2 shows a detailed perspective view of part of a support for a brush of the cleaning device.

Figure 3 shows a detailed perspective view of a group motor (or gearmotor group) of the brush of the cleaning device. In figure 3 it can be also seen a movement group, destined to move the support for the brush in order to cause its positioning in an easy maintenance position.

Figure 4 shows a detail of part of the support of the cleaning device, from which it appears the presence of a duct for the supply of water and/or air in substantial proximity of the brush.

Figure 5 shows a view of the cleaning device object of the present invention in a maintenance configuration, in which the support of the brush lies in a lowered position and in which the brush lies in a substantially inclined maintenance position, which facilitates and make it safer the intervention of the operator.

Detailed description

With reference to figure 1 , with reference number 1 is indicated in its whole a cleaning device for trains. The device 1 is conceived with the purpose of cleaning in particular a surface of at least one among a locomotive, a railcar, a passenger car or a goods wagon of a train destined to move on a railway. Figure 1 shows a single-track railway 10, which comprises two steel metallic guides, denominated rails or tracks 11 , maintained parallel between them by fixing them with sleepers, for example of wood, or of prestressed concrete, through track bolts. The distance between the two metal guides is named gauge, and corresponds substantially with the wheel base of the wheels of the carriages of the locomotive and/or of the goods wagon and/or of the car. Some gravel is typically arranged at the railway, for realizing a stabilization ballast of the metal guides and of the sleepers.

Figure 1 shows a particular railway 10, which is provided with an electrified line 100, positioned at a predetermined height with respect to the tracks 11 , and which is supported by an insulating supporting post. The electrified line is destined to allow the supply of a locomotive or of a railcar, which receives electrical power through an extensible pantograph which during use enters into contact with the electrified line 100 transferring electrical power to batteries and/or to an electric motor.

The electrified line 100 is at a height higher than the maximum height reached by the device 1 object of the present disclosure. The difference between the height at which lies the electrified line 100 and the maximum height reached by the device 1 is colloquially said "clearance” and is indicated with the letter “h” in figure 1.

With reference to figure 1 , it is noted that the device herein described comprises first of all at least a brush 3, configured for cleaning a predetermined portion of a train through a mechanical action of dirt removal deriving from its movement relative to the predetermined portion of train.

The brush 3 is realized through a plurality of fiber or thin stripes of a material suitable for the cleaning of the train, preferably a plastic material; such fibers or stripes in rest condition are inclined downwards. The brush 3 is a rotary brush, and is centered on a shaft 43. In the configuration of figure 1 , the shaft 43 rotates along a sensibly vertical axis; by effect of the rotation of the shaft 43, during use, the brush expands, since the fibers - due to the centrifugal force deriving from the rotation, align along a substantially orthogonal direction with respect to the direction of rotation of the shaft 43. The weight of fibers, combined with their length, is such to cause a bending downwards by gravity when the brush 3 does not rotate, and for this reason, in static conditions, the diameter overall detected by the brush 3 is lower with respect to the one detected when the brush is active. During use the fibers or thin stripes of plastic material enter into contact with a portion of the train, exerting a mechanical action on that surface sufficient to remove the dirt. In order not to cause damages during the cleaning, the material used for the brush 3 progressively wears during the repeated contact with the train deriving from the rotation on the shaft 43, in some cases some fibers of the brush can require a substitution or can break, for this reason the brush 3 must be subject to maintenance.

In an embodiment, the brush 3 is of cylindrical type. In a preferred embodiment, represented in the attached figures, the brush 3 shows a first cylindrical portion and a second portion having a diameter gradually increasing with the increase of the height. The second portion lies above the first portion. The Applicant has preferred the use of this embodiment considering the substantially tapered shape that locomotives and cars have in the upper portion with respect to the bottom portion in substantial proximity of carriages. The device 1 also comprises at least one support 2, 7, 8 for the brush 3; this support is configured for being anchored on the ground in correspondence with the railway 10 and is configured for sustaining the brush 3 in at least a predetermined position. For the purposes of the present invention, with the term "anchored” is intended connected in a fixed way, then with a substantially rigid connection, to a portion of ground close to the railway, for example to a concrete platform adjacent to the rails, and is also intended connected in a movable way with respect to the railway 10 or to a portion of ground close to the railway.

The support 2, 7, 8 in detail comprises at least one first arm 2, a second arm 8 and a movable pillar 7. The first arm 2 is positioned substantially at an upper portion of the movable pillar 7 and in a non-limiting embodiment is positioned substantially at an upper end portion of the movable pillar 7. The second arm 8 is positioned in substantial correspondence with a lower portion of the movable pillar 7 and in a non-limiting embodiment is positioned substantially at a lower end portion of the movable pillar 7. The axial distance (detected along a substantially vertical direction, in figure 1) that exists between the first arm 2 and the second arm 8 is substantially equal to the extension of the brush 3.

The first and the second arm 2, 8 distance the brush 3 from the movable pillar 7 for a distance sufficient to prevent the contact between the brush 3 and the movable pillar 7 also when the brush 3 is placed in rotation. Therefore, the extension of the first and of the second arm 2, 8 is higher with respect to at least the maximum radius of the brush 3 when placed in rotation.

Although different materials can be used for the realization of the support 2, 7, 8 in a non-limiting embodiment, this support is realized in metallic material; for example, and non-limiting thereto, this support 2, 7, 8 is preferably realized in galvanized steel. The support is exemplarily realized in hot dip galvanized steel and powder coated (for example epoxy or polyurethane powder or a combination of the two preceding powders or more).

In an embodiment, at least the movable pillar 7 shows a boxed structure with square or rectangular transversal section; preferably, however, also the first and the second arm 2, 8 show a boxed structure with square or rectangular transversal section.

Although it is not to be intended as limiting, preferably - as shown in the attached figures - the first arm 2 and the second arm 8 depart substantially orthogonally with respect to the movable pillar 7. Their purpose is to opportunely space the brush 3 from the movable pillar 7; in an operative configuration, as a matter of fact, the brush 3 and the movable pillar 7 are positioned substantially parallel the one with respect to the other.

The connection between the support 2, 7, 8 and the railway 10 or the ground portion close to the railway 10 occurs by means of a base 6 for the support 2, 7, 8; this base 6, preferably realized in metallic material for giving adequate resistance to the whole, is configured for being engaged on a ground in proximity of the railway 10. The base 6 can also be movable with respect to the railway 10; in a non-limiting embodiment, the base 6 in particular is axially movable along a direction substantially parallel to a main development direction of the railway 10. The base 6 is fixed to the ground in proximity of the railway through a plurality of plugs or pegs inserted in the ground.

The Applicant has conceived a particular and non-limiting embodiment of the device 1 wherein the base 6 is slidingly fixed on a guide substantially parallel to the tracks 11 , in such a way that is possible to make the device 1 with respect to the train translate, during the cleaning of the train, being the last one maintained still.

In order to allow an easy and safe maintenance of the brush 3, or a substitution of the brush 3, mitigating the drawbacks of the known art, the support 2, 7, 8 is movable and the cleaning device 1 for trains comprises at least:

- an operative configuration, in which the support 2, 7, 8 takes on a first position with respect to the railway 10 and/or with respect to the train, and in which the support 2, 7, 8 sustains the brush 3 in at least one first operative position adapted to allow the cleaning of said predetermined portion of a train; and

- a maintenance configuration, in which the support 2, 7, 8 takes on a second position with respect to the railway 10 and/or with respect to the train, and in which the support 2, 7, 8 sustains the brush 3 in a maintenance position adapted to allow a substitution or a maintenance of the brush 3 itself.

In figure 1 , the support 2, 7, 8 lies in the first position, and the brush 3 lies in the mentioned first operative position. In figure 5, the support 2, 7, 8 lies in the second position, and the brush 3 lies in the mentioned maintenance position.

The expression "at least one first operative position” is voluntarily used since the operative position could be one or more than one; in particular, a specific non-limiting embodiment of the device 1 , that is in addition the one shown in the attached figures, allows to position the support 2, 7, 8 and then the brush 3 in a plurality of operative positions more or less close to one of the two tracks 11 (this proximity is mainly intended in horizontal direction); this advantageously allows to make the device 1 adapted to the cleaning of trains with various widths, and make then the device 1 more flexible at operative level. Furthermore, this technical feature allows to make less critical a precise space between the base 6 and the track 11 , since the effective proximity between the brush 3 and the track, in horizontal direction, can be varied. Furthermore, the variation of the operative position can be a variation of inclination of the brush 3 with respect to the vertical axis, that determines an approaching and/or a motion of a portion of the brush 3 away with respect to the train. Thanks to this technical feature, it is possible to effectively clean trains the lateral portions of which are also considerably inclined with respect to the vertical.

In particular, the first arm 2 and the second arm 8 are preferably movable with respect to the movable pillar 7, and in particular can rotate with respect to the latter by rotating around an axis which is parallel to the direction of maximum extension of the movable pillar 7. Consequently, when the movable pillar 7 is substantially aligned along a vertical direction, as for example represented in figure 1 , the first and the second arm 2, 8 can rotate for carrying out a tilting of the brush 3 among positions more or less close with respect to tracks 11 . Two flanges 74 (preferably flanges each one supporting a respective bearing), fixed to the movable pillar 7 and opportunely greaseable, allow the connection of the first and of the second arm 2, 8 in a rotary way around an axis (axis K) parallel to the axis of maximum development of the movable pillar 7; this configuration is represented in figure 2, wherein it can be also observed the presence of one auxiliary running board 21 which allows to force a simultaneous movement of the first arm 2 and of the second arm 8. A first of the two flanges 74 is positioned at a first (and higher) height on the movable pillar 7; a second of the two flanges 74 is positioned at a second (and lower) height on the movable pillar 7. The two flanges 74 are axially aligned, and show, each one, a respective hole, preferably circular, having an axis oriented along a direction substantially parallel to the direction of main development of the movable pillar 7. This configuration is clearly represented in figure 2. Given the relevant weight of the brush 3 and at least of the first and of the second arm 2, 8, preferably on these flanges 74 are positioned respective bearings (exemplarily of thrust type) capable of reducing a sliding friction during use developing during the rotation of the first and of the second arm 2, 8 with respect to the movable pillar 7.

The auxiliary running board 21 is parallel to the movable pillar 7, and is fixed in substantial correspondence of an inner end of the first arm 2 and of the second arm 8. The assembly formed by the auxiliary running board 21 , by the first arm 2 and by the second arm 8 realizes a substantially "C'-type shaped structure.

This auxiliary running board 21 is configured for synchronously moving with the movable pillar 7. The device 1 comprises also one auxiliary motor group 75 configured for commanding the movement of the first and of the second arm 2, 8 with respect to the movable pillar 7. In particular, the auxiliary motor group 75 comprises at least one electric motor, and optionally - but preferably - comprises at least a gearmotor configured for causing a rotation of the first and of the second arm 2, 8 to an adequate, and low, speed. This takes into account the significative weight of the brush 3.

The auxiliary motor group 75 comprises a respective shaft that acts on the auxiliary running board of the support 2, 7, 8, and then that acts in rotation on the first arm 2 and on the second arm 8, by determining its rotation with respect to a vertical axis K coincident, as it can be seen in figure 2, with the axis of the shaft of the auxiliary motor group 75.

In particular, in the first operative position the brush 3 is oriented in a substantially vertical direction or comprised in a range of 30°, preferably 20°, with respect to a vertical axis.

In the maintenance configuration the brush 3 takes on a height lower with respect to a height taken on in the operative configuration and/or takes on a spatial orientation different with respect to the spatial orientation taken on in the operative configuration. This means that in the second position the support 2, 7, 8 is inclined and/or translated and/or rotated with respect to the first position and/or shows at least a portion lying at a height lower with respect to a height taken on in the first position. This peculiar technical feature is easily observable by a reader with a comparison between the figure 1 and the figure 5. Preferably, in the maintenance position the brush 3 is oriented along a substantially horizontal direction or comprised in a range of 30°, preferably 20°, with respect to a horizontal axis. The rotation of the support 2, 7, 8 between the first and the second position determines a substantial invasion of the seat of the railway 10.

To make this movement of the brush 3 possible, the support 2, 7, 8 is movable in rotation with respect to at least a first substantially horizontal axis X, which in the attached figures is substantially parallel to the axis along which are oriented the tracks 11 .

As it is shown in figure 2, the device 1 comprises a pin 72 arranged on the first axis X and at which the support 2, 7, 8 is configured to rotate.

In the embodiment represented in the attached figures, and in particular as it can be seen in the drawing of figure 3 and of figure 4, the pin 72 is fixed to the support 2, 7, 8 at a lower portion of the support 2, 7, 8 and rotates within at least one flange 71 fixed to the base 6. Conveniently, greasing points are arranged at the pin 72 and/or the flange 71 so that it is possible to maintain a correct lubrication between the two components for withstanding the sliding friction during use present when the support 2, 7, 8 is moved between the first and the second position. In this specific respect, the Applicant observes that in appropriate points on the support 2, 7, 8 there are recesses for lubrication ducts conveniently supplied for maintaining adequate lubrication of all the movable components of the device 1 object of the present disclosure; this is particularly useful taking into account the application in a substantially wet zone.

In particular, it is noted that the pin 72 is joined, for example welded, to the movable pillar 7 at the lower end of the movable pillar 7.

More in particular, a possible embodiment of the device 1 can comprise a first and a second flange 71 , respectively positioned on the left and on the right of the movable pillar 7 and present a first pin 72 and a second pin 72, respectively fixed on the left side and on the right side of the movable pillar 7; the first pin 72 is configurated for rotating, during use, within the first flange 71 ; the second pin 72 is configured for rotating, during use, within the second flange 71. The first and the second pin 72 are axially aligned along the horizontal axis X. An alternative solution, and technically equivalent, can provide a single pin 72 (shaped for example as a turned shaft) having its two ends inserted in the two right and left flanges 71 , in such a way that these ends can rotate within the two flanges; it is to be noted in this sense the exemplary realization shown in figure 4. The unitary pin 72 results axially arranged along the horizontal axis X.

The Applicant observes that the embodiment shown in the attached figures is not to be intended as limiting; as a matter of fact, in an alternative embodiment, the pin 72 is fixed to the base 6 and rotates, during use, within at least one flange 71 fixed on the support 2, 7, 8. In this latter case, it could be then the flange to be joined, for example welded, to the movable pillar 7 at the lower end of the movable pillar 7.

As mentioned before, the brush 3 is of rotary type. As clearly represented in figure 3, in a preferred embodiment the device 1 comprises one motor group 41 , 42 (or gearmotor group) configured for putting in rotation the brush 3 when activated. In particular, the motor group 41 , 42 can be configured for putting in rotation the brush 3 at least when it is in the at least one first operative position; the device 1 can in particular be configured for preventing the rotation of the brush 3, and in particular for preventing the actuation of the motor group 41 , 42 when the brush 3 is in the maintenance position; more in general, the device 1 can be configured for preventing the actuation of the motor group 41 , 42 when the brush 3 is not in any operative position. During a maintenance operation, a position sensor preferably present on board of the device 1 can be configured for detecting at least the position of the support 2, 7, 8, detecting the assumption of the mentioned second position by the support 2, 7, 8 and causing a shutting off of the motor group 41 , 42. The position sensor transmits to the data processing unit a position signal; preferably, but non-limiting thereto, this position signal is an electric signal or an optical signal.

In this way, the operator can safely substitute the brush 3 by disconnecting it from the support 2, 7, 8 in particular by disconnecting it from the first arm 2 and from the second arm 8. The supply is again activated through the previously mentioned sensor. Preferably, the motor group 41 , 42 can be configured for allowing to adjust a rotation angular speed of the brush 3.

In a possible non-limiting embodiment, the device 2 can comprise a stopper of mechanical type configured for preventing the movement of the auxiliary running board 21 , connected to the first arm 2 and to the second arm 8 for forming a "C'-structure, when the device 1 is in maintenance configuration and the support 2, 7, 8 takes on the second position. In this way it is prevented that, during the maintenance, it can occur an undesired movement of the "C'-structure formed by the auxiliary running board 21 , by the first arm 2 and by the second arm 8, in particular a rotation around the axis K.

In particular, in a non-limiting embodiment, the motor group 41 , 42 is mechanically connected to the shaft 43 and is substantially positioned at the support 2, 7, 8; more in particular, in a non-limiting embodiment, the motor group 41, 42 is substantially positioned at the second arm 8. The positioning of the motor group 41 , 42 at the second arm 8 allows advantageously to position the weight of the motor group 41 , 42 itself in a low portion, and then helps to increase the stability of the device; furthermore, by positioning the motor group 41, 42 on the second arm 8, the maintenance of the motor group 41 , 42 is made easy, since this second arm 8 is at a height easily reachable by an operator without the need of stairs or elevators.

In an embodiment, the motor group 41 , 42 comprises one electric motor 41 and a gearmotor and/or redirectioning group 42, receiving the movement from a shaft of the electric motor 41 and supplying the movement to the shaft 43 with a speed reduction (and then with a proportional torque increase) and/or along a direction different with respect to the direction along which the shaft of the electric motor 41 is aligned. During use, when activated, the motor group 41 , 42 brings in rotation the shaft 43 in clockwise direction, or in counterclockwise direction according to the sense of rotation of the movement.

The device 1 of the present disclosure comprises also a movement group 61 , 62, 63, conceived with the purpose of causing a movement of the support 2, 7, 8 between the first and the second position and/or with the purpose of causing a movement of the brush 3 between at least one first operative position and the second maintenance position. In particular, the movement group 61 , 62, 63 is configured for allowing a turning down of the movable pillar 7 for passing from a substantially vertical position, such as for example is the position of figure 1 , to a considerably inclined position such as for example is the position of figure 5, within which the operator can carry out a maintenance of the brush 3 or its substitution, with sufficient clearance with respect to the electrified line.

In an embodiment not shown in the attached figures, the movement group can comprise a linear actuator, for example a piston hydraulic linear actuator arranged between the base 6 and the movable pillar 7.

In the embodiment of the attached figures the movement group 61 , 62, 63 comprises a rotary actuator 61 , operatively coupled with a first flexible transmission element 73 and with a second flexible transmission element 73. As represented in detail in figures 2 and 5, the first flexible transmission element 73 and the second flexible transmission element 73 are realized with a metallic cable; this metallic cable can be equivalently substituted with a chain, a textile cable (for example and non-limiting thereto in aramid fiber and/or in polyester or nylon), or a belt (for example and non-limiting thereto a belt in aramid fiber and/or in polyester or nylon). At the left and right side of the movable pillar 7 there are two pins 82 extending in a direction substantially orthogonal with respect to the direction detected by the maximum extension of the movable pillar 7. These pins 82 rotate on an axis orthogonal with respect to the direction detected by the maximum extension of the movable pillar 7. Each of these pins 82 comprises a hole within which it is introduced the pin of a respective shackle to which a predetermined portion of the metallic cable is fixed. This predetermined portion, in the embodiment of the attached figures, is an end portion at which the cable is retained on a thimble closed on U-bolts or on a crimped sleeve; the thimble is engaged in the shackle. The first and the second pin 82 are fixed at a substantially upper predetermined portion of the movable pillar 7, preferably at a same height. The Applicant in particular observes that the presence of the thimble must not be intended as limiting. The metallic cable could be fixed to the respective pin through an attachment of different type, for example "wedge” or cast head type.

The movement group 61 , 62, 63 comprises a pair of rollers 62, upon which is at least partially wound the metallic cable; the rotation of the rollers in counterclockwise or clockwise direction determines an unwinding or winding of the metallic cable. With the winding of the metallic cable on rollers 62, it is determined a movement of the movable pillar 7 from a lowered position, and inclined with respect to the vertical, towards a straighter position; in particular, with the winding of the metallic cable on rollers 62, it is determined a movement of the movable pillar 7, and more generally of the support, from the second position towards the first position. Vice versa, with the unwinding of the metallic cable from rollers 62, it is determined a movement of the movable pillar 7 from a lifted, and substantially vertical, position towards a lowered position; in particular with the unwinding of the metallic cable from rollers 62, it is determined a movement of the movable pillar 7, and more generally of the support, from the first position towards the second position.

The rotary actuator 61 comprises at least one between an electric motor and/or a crank operation. In the embodiments of the attached figures, the rotary actuator comprises a crank operation 63, which through a mechanical transmission - for example, and non-limiting thereto through an endless screw - causes a transfer of the rotation movement from the crank 63 towards the first and the second roller 62. Preferably the crank operation can comprise a man's height transmission, for example with an opportune lever or transmission, for facilitating its use by an operator. When an electric motor is present, opportune speed reducers can be used for causing an unwinding and/or a winding of the metallic cable at an opportunely reduced speed, taking into account the significant weight of the brush 3.

Preferably, but non-limiting thereto, the rotary actuator 61 comprises a free wheel, or unidirectional joint; this free wheel allows to prevent, for example that during a step of uplifting of the support 2, 7, 8 from the second position toward the first position it is determined an unwanted releasing of the crank 63 with consequent, and uncontrolled, lowering of the support 2, 7, 8. The free wheel can present a manual, free or clutch releasing mechanism.

It is observed that although the embodiment shown in the attached figures shows two metallic cables, two shackles and two rollers 62, this configuration is not to be intended as limiting; although the above-described solution allows to equally distribute a traction force of the movable pillar 7 on its left and right side, and allows furthermore to introduce a redundancy (given by the two metallic cables) that increases the intrinsic safety of the mechanism, in principle could be enough the presence of a single metallic cable in traction on a single shackle introduced in a pin rotatably engaged in a predefined position of the movable pillar 7 where it is present the pin 82 (or pins 82, if in plurality) for allowing the realization of the technical function of movement of the movable pillar 7 itself; in this case, the movement group could also comprise a single roller 62.

The embodiment of the device 1 shown in the attached figures shows also a first and a second support pillar 5. The first and the second support pillar are fixed to the base 6 in a preferably rigid way and present, each one, a first end fixed to the base 6 and a second free end. The spatial orientation of the first and of the second support pillar 5 is such that these support pillars are substantially in vertical direction.

Each one of the two support pillars 5 is equipped with one pulley 51 , that preferably, but not limiting thereto, is substantially positioned at the second end of the respective support pillar 5. The pulley 51 rotates around a substantially horizontal axis. This axis is indicated in the attached figures as axis W. The pulley 51 comprises a groove within which during use the metallic cable slides; preferably, then, the pulley is transversally aligned in such a way that the groove is centered on a plane that unites the shackle and/or the thimble to the respective roller 62. The expert in the art will know how to correctly size the sections of the groove and of the metallic cable relative to the weight of the assembly formed by the first arm 2, by the movable pillar 7, by the second arm 8 and by the brush 3 with the respective shaft 43. These sizes will conveniently vary according to the presence of a double metallic cable and pulley system as the one represented in the attached figures, or to the presence of a single metallic cable and pulley system. The pulley 51 allows an alteration of the direction of sliding of the metallic cable without altering its sliding plane. The Applicant observes again that it could be present even a single support pillar 5, equipped with a respective pulley 51.

By observing the attached figures, it appears immediate that the first and the second support pillar 5 are respectively side-by-side on the two opposed sides of the movable pillar 7 and are both having a same shape and extension; the respective pulleys 51 lie then at a same height. The first support pillar 5 and the second support pillar 5 are parallel the one to the other.

The Applicant observes in particular that the presence of support pillars 5 is given by the position of the movement group 61 , 62, 63 that being positioned substantially at the base 6 needs of at least an intermediate control at an upper height (realized, in the end, by the pulley 51) for allowing the rotation of the movable pillar 7.

The Applicant furthermore observes that the presence of orientable pins on the movable pillar 7 advantageously allows to accompany in a rotary way the direction of traction of the metallic cable according to the relative position temporarily taken on among the movable pillar 7 and the pulleys 51 ; although the presence of orientable pins is not imperative, it is preferable since in this way there are no twists on the metallic cable at the connection with the movable pillar 7.

The Applicant during use has observed that when the support 2, 7, 8 is substantially at the second position, the metallic cable undergoes a significant traction force. In order to cause a temporary reduction of the traction force on the metallic cable at least at the second position for the support 2, 7, 8, the Applicant has observed that it is preferable to provide the device 1 of the present disclosure with one support element 9, connectable to the support 2, 7, 8, in particular connectable to the movable pillar 7 at an its predetermined portion. The support element 9, in the shape of a substantially axially developed bar, is configured for resting on the ground when the support 2, 7, 8 is in the position, and therefore when the brush 3 is at the maintenance position.

It should be noted that, preferably, the support element 9 is removably mountable to the support 2, 7, 8: in particular, the support element 9 is mounted to the support when the device 1 is to be brought into the maintenance configuration to carry out the maintenance or substitution of the brush 3, while it is removed from the support when the device 1 is in the operative configuration. Optionally, an entire cleaning plant for trains, comprising a plurality of cleaning devices 1 , can comprise a single support element 9 (or a reduced number of support elements) which is from time to time connected to support 2, 7, 8 of the device 1 to be brought into the maintenance configuration to carry out the maintenance or substitution of the respective brush 3.

In a preferred embodiment, the support element 9 comprises a buffer 91 having an adjustable position with respect to the bar, in particular extendable or retractable with respect to the bar; this buffer 91 comprises a threaded connection on the bar or an equivalent distance adjustment system. Through this buffer 91 , it is possible to define or finely adjust the direction taken on by the brush 3 with respect to the vertical when in the maintenance position without the need of substituting the bar itself. The buffer 91 can be joined to the bar by means of an elastic system, for example, and not limiting thereto comprising a helical spring or an axially compressible rubber buffer 91. This solution is not shown in the attached figures. Thanks to this technical feature, it is possible to provide for substantially local absorbing the impact of the support element 9 against the ground, which observed the typical weight of the brush 3 could still be able to be transmitted on the remaining structure of the device 1 , in particular on the support 2, 7, 8, even in case of significantly controlled movement towards the second position.

In the embodiment shown in the attached figures, the support element 9 extends in a significantly inclined direction with respect to the movable pillar 7, and in particular extends substantially orthogonally with respect to the movable pillar 7 and is installed in a fixed way on the latter; this configuration must not be understood in a limiting way, since in an alternative embodiment there may be a movable connection between the support element 9 and the movable pillar, which ensures the possibility of turning down the support element 9 and of keeping the latter - at least at the at least an operative configuration - substantially aligned with the direction of maximum extension of the movable pillar 7.

Although there is no limit to define the exact position in which the support element 9 is to be leaned, preferably this support element will be positioned in substantial proximity to or at a sleeper of the railway 10, so that it is possible to have a valid support during maintenance operations.

The Applicant, when she realized the invention, she recognized that railways are often electrified, due to the need to run trains equipped with a heat engine and trains equipped with an electric motor. The supply of electric power to a locomotive occurs on a suspended and electrified power line, positioned at a determined height from the railway. This height is higher than the height of the roof of the locomotive and/or of cars or goods wagons, and is reachable by a power supply pantograph, typically elastically movable, positioned on the roof of the locomotive or of the railcar.

Everything that is not to be powered must be at a certain clearance with respect to the electrified line, so as - moreover - to avoid electrocution by electric arc.

The supply of the trains occurs at high voltage; a contact with the electrified line by the operator would easily cause his death. Nevertheless, the Applicant has observed that for safety reasons there must be a determined clearance between the electrified line and the brush and/or the support of it, since during a contact with the brush the operator is considered to be electrically in contact with the entire cleaning device. The substitution of brushes with an operator positioned substantially at a height equal to or similar to that reached by the roof of the train (this height is to be considered substantially equal to that of the upper portion of the brush) requires the electrical shutting off of the electrified line; this operation is onerous, and often due to the uniform electrification of long route sections, almost impossible without causing inefficiencies to the normal operation of the operative trains. For this reason, the device here described allows to solve the need to provide an electrical decoupling of a section of an electrified line during the maintenance operation.

Finally, the Applicant has observed that during the cleaning of the train, this cleaning can be optimized by a combined action of mechanical abrasion given by the brush 3 and by a washing. For this reason, in at least an embodiment, the device 1 embeds a fluid supply duct 15 to nozzles in proximity of the brush 3. The duct 15 is at least partially positioned within the support 2, 7, 8, in particular at least within the movable pillar and is preferably equipped with a shutter valve, which allows to interrupt the fluid supply to the nozzles in case of need.

As it can also be seen in figure 4, in an embodiment, the device 1 integrates an emergency stop device 16, for example and not limited thereto an emergency stop button, which is configured for allowing an interruption of power supply to the motors of device 1 in order to cause its immediate stop of operation.

The Applicant observes that a plurality of devices 1 can be arranged substantially at a railway 10 to realize a more complex cleaning system for trains. Such a system can preferably comprise a first device 1 as described herein positioned to the left of the tracks 11 and a second device 1 as described herein positioned to the right of the tracks 11. In a non-limiting embodiment, this first and second device 1 can be configured for being simultaneously operated, at least for being simultaneously operated in their operative configuration. Moreover, in a further embodiment, the system can comprise a sleeper connecting the first device 1 to the second device 1 , realizing a system bridging the train, also called a portal system.

The operation of the electric motor 41 , of the auxiliary motor group 75 and, if present, of the movement group 61 , 62, 63 can be controlled by at least a data processing unit. This data processing unit can be conveniently positioned substantially at the device 1 or can be remoted with respect to the device 1. The data processing unit is electrically connected to the motors of interest. The data processing unit is advantageously configured for managing with a suitable degree of automatism the start of the train cleaning by, for example, causing an actuation of the electric motor 41 and/or causing a controlled actuation of the auxiliary motor group 75. Data deriving from sensors not shown in the attached figures, among which data from the proximity of the train with respect to the device 1 or data obtained from known railway signaling systems, can be used to cause the start of train cleaning. These data are electronically transmitted to the data processing unit.

The data processing unit comprises, or is operatively connected to, a memory within which is written a firmware or software program for the at least partially automated execution of the actuation of at least one among the electric motor 41 , the auxiliary motor group 75, and, if present, the movement group 61 , 62, 63.

The data processing unit can comprise one among a general-purpose type processor, an application- integrated specific circuit (ASIC), a programmable logic controller (PLC) or a FPGA.

The data processing unit can simultaneously control the first device 1 and the second device 1 in particular when considering a portal system as described above. The electric motors described in the present disclosure can be of any type; preferably, however, they are AC motors, for example three-phase motors.

The invention is not limited to the embodiments of the attached figures; for this reason, in the following claims the numbers and reference marks in brackets are provided for the sole purpose of increasing the intelligibility of the claims, and should not be considered limiting.

Finally, it is clear that additions, modifications or variants, which are obvious to a person skilled in the art, can be applied to the device 1 object of the present invention, without thereby departing from the scope provided by the attached claims.

Claims

1. Cleaning device (1) for trains, the device (1) comprising:

- at least one brush (3), configured for cleaning a predetermined portion of a train by means of a mechanical action for removing dirt, deriving from its movement relative to said predetermined train portion;

2. Device according to claim 1 , wherein in the maintenance configuration, the brush (3) takes on a height lower than a height taken on in the operative configuration and/or takes on a spatial orientation different with respect to the spatial orientation taken on in the operative configuration, and/or wherein in the second position the support (2, 7, 8) is tilted and/or translated and/or rotated with respect to the first position and/or it has at least one portion lying at a height lower than a height taken on in the first position; optionally said second position being destined to increase a distance (h) between an electrified line (100) of said railway (10) and at least the brush (3) with respect to a distance (h) between the electrified line (100) and at least the brush (3) when the support (2, 7, 8) lies in said first position.

3. Device according to claim 1 or 2, wherein the support (2, 7, 8) is movable in rotation with respect to at least a first substantially horizontal axis (X); the device (1) comprising a pin (72) arranged on said first axis (X) and at which the support (2, 7, 8) is configured to rotate; wherein the pin (72) is fixed to the support (2, 7, 8) at a lower portion of the support (2, 7, 8) and rotates, during use, within at least one flange (71) fixed to the base (6), or wherein the pin (72) is fixed to the base (6) and rotates, during use, within at least one flange (71) fixed to the support (2, 7, 8); optionally wherein in said first operative position the brush (3) is oriented in a substantially vertical direction or comprised in a range of 30°, preferably 20°, with respect to a vertical axis, and wherein in said maintenance position the brush (3) is oriented along a substantially horizontal direction or comprised in a range of 30°, preferably 20°, with respect to a horizontal axis.

4. Device according to one or more of the preceding claims, wherein the brush (3) is, during use, rotary, and wherein the device (1) comprises at least one motor group (41 , 42) configured for putting the brush (3) in rotation at least when in said at least one first operative position; wherein the motor group (41 , 42) is positioned substantially at said support (2, 7, 8).

5. Device according to one or more of the preceding claims, wherein the base (6) is fixed with respect to said railway (10) or wherein the base (6) is movable with respect to said railway (10), in particular at least locally axially movable at least along a direction substantially parallel to a main development direction of the railway (10).

6. Device according to one or more of the preceding claims, comprising a movement group (61 , 62, 63), configured for causing a movement of the support (2, 7, 8) between the first and the second position and/or configured for causing a movement of the brush (3) at least between the at least one first operative position and the maintenance position; and wherein the movement group (61 , 62, 63) comprises at least one between a linear actuator, in particular a hydraulic linear actuator, and a rotary actuator (61) operatively coupled with a first flexible transmission element (73); said rotary actuator (61) comprising at least one roller (62) on which said first flexible transmission element (73) is wound or unwound during use, said first flexible transmission element (73) comprising at least one among a cable, in particular a metallic cable, a chain, or a belt; said first flexible transmission element (73) comprising a portion, in particular an end, engaged at a first predetermined portion of the support (2, 7, 8), in particular at which said pin (72) lies; optionally wherein said rotary actuator (61) comprises at least one between an electric motor and/or a crank actuation and acts on said roller (62) in order to cause a rotation thereof in accordance with a rotation of the electric motor and/or of the crank actuation.

7. Device according to claim 6, wherein the movement group (61 , 62, 63), when actuated, is configured for determining at least one switch of the position taken on by the brush (3) at least between the at least one first operative position and the maintenance position and, optionally, for determining at least one switch of the position taken on by the support (2, 7, 8) at least between the first position and the second position.

8. Device according to claim 6 or claim 7, comprising at least one first support pillar (5), operatively fixed to the base (6) and comprising at least one transmission pulley (51) within which, during use, the first flexible transmission element (73) slides; optionally wherein the rotary actuator (61) is operatively coupled with a second flexible transmission element (73), said second flexible transmission element (73) comprising at least one among a cable, in particular a metallic cable, a chain, or a belt; said second flexible transmission element (73) comprising a portion, in particular an end, fixed at a second predetermined portion (72) of the support (2, 7, 8), and wherein the device (1) comprises a second support pillar (5), operatively fixed to the base (6) and comprising at least one transmission pulley (51) within which, during use, the second flexible transmission element (73) slides, said second support pillar (5) being substantially parallel to said first support pillar (5); wherein the support (2, 7, 8) comprises at least one movable pillar (7) substantially side-by-side to at least the first support pillar (5), optionally wherein the movable pillar (7) is positioned between the first support pillar (5) and the second support pillar (5).

9. Device according to one or more of the preceding claims, wherein the support (2, 7, 8) comprises at least one first arm (2), and optionally a second arm (8); said first arm (2), and optionally said second arm (8), being movable for causing a movement of the brush (3) between the first operative position and a second operative position, wherein the second operative position is further away from the train and/or from the railway (10) with respect to the first operative position; optionally the device (1) comprising at least one auxiliary motor group (75) configured for causing a movement of the at least one first arm (2) and preferably for causing and/or controlling a movement of the first arm (2) and of the second arm (8), optionally wherein the auxiliary motor group (75) is configured for causing a movement of the at least one first arm (2), preferably of the first arm (2) and of the second arm (8), with respect to the movable pillar (7), wherein said auxiliary motor group (75) is configured preferably for causing a rotation of the at least one first arm (2), optionally of the first arm (2) and of the second arm (8) with respect to the movable pillar (7), said auxiliary motor group (75) comprising preferably at least one electric motor.

10. Device according to one or more of the preceding claims, comprising at least one support element (9), connected to the support (2, 7, 8) at a predetermined portion thereof, in particular at a first end portion thereof; said support element (9) being configured and destined to abut against the ground when said support (2, 7, 8) lies in the second position and/or when the brush (3) lies at the maintenance position.