Mounting and rotation device for equipment applicable to the roof of vehicles

Abstract

The present invention relates to a mounting and rotation device (100; 300) for equipment (200) applicable to the roof of vehicles, for example, light bars for signaling. The device (100; 300) of the present invention allows the equipment (200) to be oriented so as to ensure its visibility in all operating situations. The device (100; 300) comprises a group of fixed elements (10, 11, 20, 30, 60, 70, 71, 75, 80; 351, 352, 353, 354, 357, 358) and a group of rotating elements (43, 44, 53, 54, 90; 310, 361, 364) which can be securely fixed to the equipment (200) and which can rotate about a vertical axis (Z) relative to the group of fixed elements (10, 11, 20, 30, 60, 70, 71, 75, 80; 351, 352, 353, 354, 357, 358) by means of rotation means (40; 366).The angular position is measured by at least one first angular sensor, and rotation-blocking means (50; 316) are further included, configured to prevent rotation of the group of rotating elements (43, 44, 53, 54, 90; 310, 361, 364). A user control interface and a central control unit configured to manage the movement of the device (100; 300) are also included. (Fig. 1).

Description

Title of the invention: Fixing and rotating device for equipment applicable to the roof of vehicles. Technical field

[0001] The present invention relates to the technical field of vehicle outfitting for emergency services. It relates in particular to a fixing and rotation device for equipment applicable on the roof of vehicles, for example light bars, which allows the direction of said equipment to be changed relative to the vehicle. State of the art

[0002] As is known, there are currently many types of light bars for emergency vehicles on the global market, which are mounted in a defined orientation (normally rectangular, with the long side perpendicular to the direction of travel of the vehicle). These are fixed to the roof of the emergency vehicle, attached to metal wires by bolts, which gives rigidity and mechanical resistance to the light bar, but which at the same time restricts its configuration, making the vehicle's signaling and information function inflexible and not very adaptable to various operating situations.To compensate for the fact that information is linked to the direction of travel of the vehicle on which it is displayed, if it is not possible to transmit optimal information, including safety information and / or the correct lane to use, to the relevant road users by positioning the vehicle in the direction of travel, it is necessary that the emergency vehicle equipped with the illuminated information panel be positioned on the road in such a way as to maximize the visibility of the emergency information as the road user passes. Sometimes this is not possible, and positioning the vehicle in a direction other than that of travel can compromise the reception of the emergency information itself, not just the light bar, and may even impede the safe passage of other vehicles.In other cases, the impossibility of positioning the vehicle near the emergency situation, due to the congestion it would cause by having to position itself to optimize the visibility of the information, forces the operator to position themselves in locations far from where they would be truly needed. Furthermore, in cases where the information needs to reach a wider visibility radius, it is necessary to deploy several vehicles with the same information system, which generates an unnecessary waste of human resources, among other things.

[0003] To date, no rotating device for emergency vehicle equipment, for example light bars, has been developed that would be The system must be compact and ensure the equipment's strength and secure attachment, even when the vehicle is in motion. Overly bulky and cumbersome systems, in addition to their material cost, add weight to the vehicle, negatively impacting its performance. Conversely, systems that are too lightweight may not provide sufficient support and stability for the panel on the vehicle, especially when it is moving.

[0004] The technical problem that the present invention seeks to solve is the ability to rotate the light bar of information positioned on the roof of the vehicle in order to cover a greater radius of visibility and facilitate emergency signaling according to the type of road intervention being carried out, ensuring optimal mechanical performance in addition to facilitating the visualization of the information by the user, and consequently the quality of the information transmission itself. Thus, the ability to orient the equipment in a position adapted to the road situation without constraints related to the position of the vehicle would provide added value to any driver of road vehicles for whom the signaling is intended. Summary of the invention

[0005] The present invention aims to provide a rotation device which overcomes the disadvantages and solves the problems of the prior art.

[0006] The present invention relates to a device according to the attached claims:

[0007] A fastening and rotation device configured to fix equipment to the roof of a vehicle, and to rotate the equipment about a vertical axis Z perpendicular to a transverse plane XY defined by a first direction X, and a second direction Y perpendicular to the first direction X, the fastening and rotation device comprising: - a group of fixed elements, rigidly connected to each other, in the form of a fixed base that can be securely attached to the roof of the vehicle on one side of the fixed base; - a group of rotating elements, rigidly connected to each other, which can be securely fixed to the equipment and which can rotate around the vertical Z axis relative to the group of fixed elements; - rotation means configured to rotate the group of rotating elements relative to the group of fixed elements between a minimum angular position and a maximum angular position relative to a zero angular position in which the equipment is in a predetermined angular position; - at least one first angular sensor configured to measure the angular position of the group of rotating elements relative to the group of fixed elements; and - a central control unit configured for: - receive, from said at least first angular sensor, the current angular position of the group of rotating elements relative to the group of fixed elements; - receive an activation command for the rotation means and an angular position for the end of rotation; and - activate the rotation means according to the order of activation of the rotation means, in the current angular position and in the final angular position of rotation, until said final angular position of rotation is reached;

[0008] Fixing and rotation device, wherein: - the fixed element group comprises a rack integral with a base plate on a second side of the fixed base opposite said first side of the fixed base with respect to said vertical axis Z, the rack comprising a curved toothed side; and - the rotation means comprise a motor equipped with a geared motor extending in an extension direction and a toothed pinion capable of rotating in a direction perpendicular to said extension direction and parallel to said vertical axis Z, and in which: - the toothed pinion and the curved toothed side of the rack are arranged to form a rack and pinion gear; and - the motor's geared motor is fixed rigidly to the group of rotating elements, such that a rotation of the toothed pinion on the curved toothed side causes a rotation of the group of rotating elements;

[0009] Fixing and rotation device, wherein: - the fixing and rotation device further includes means for locking rotation configured to lock the rotation of the group of rotating elements in a locking angular position; and - the central control unit is further configured to receive at least one activation signal for the rotation blocking means and then activate the rotation blocking means;

[0010] Fixing and rotation device, wherein: - the means for blocking rotation comprise a first and a second blocking actuator, each respectively having a first and a second conical head that can be moved longitudinally relative to a first and a second actuator body; and - the base plate includes a first and a second female centering, the first and second conical heads being inserted respectively into said first and second female centering elements in the angular locking position;

[0011] Fixing and rotation device in which the fixing and rotation device further comprises a second angular sensor configured to detect the zero angular position and send at least one activation signal of the rotation blocking means to the central control unit;

[0012] Fixing and rotation device, in which the extension of the fixing and rotation device is oblong in the transverse plane XY;

[0013] Fixing and rotation device, wherein said equipment is a rectangular-based light signaling ramp.

[0014] Motor vehicle comprising means for engaging the parking brake, as well as a fixing and rotation device fixed on the roof of the motor vehicle and including a central control unit according to the present invention (for example according to claim 3 or according to claim 3 and one of claims 4 to 7), in which the rotation blocking means are activated by the central control unit upon receipt of an activation signal for the vehicle's parking brake engagement means;

[0015] Motor vehicle in which said equipment is a light signaling ramp with a rectangular base and in which said zero angular position is a position in which the long side of the rectangular base is arranged along the second direction Y and the short side is arranged along the first direction X when the latter is parallel to the direction of travel of the motor vehicle.

[0016] List of figures List of figures

[0017] The invention will now be described by way of non-limiting example, with particular reference to the drawings in the accompanying figures, in which:

[0018] [Fig-1] [Fig.1] represents a fixing and rotation device according to the present invention in top view (a), in front view (b) and in isometric view (c);

[0019] [Fig.2] [Fig.2] represents, in isometric view, the fastening and rotation of the [Fig.1], to which a light signaling ramp is applied, on (a) perpendicular to the direction of movement of the vehicle, on (b) at forty-five degrees with respect to an axis perpendicular to the direction of movement of the vehicle, on (c) at less than forty-five degrees with respect to the axis perpendicular to the direction of movement of the vehicle;

[0020] [Fig.3] [Fig.3] represents an exploded isometric view of the fastening device and rotation of the [Fig.l];

[0021] [Fig.4] [Fig.4] shows an exploded isometric view of a motor of the device fixing and rotation of the [Fig.l] with the corresponding fixing elements according to the present invention;

[0022] [Fig. 5] [Fig. 5] shows the positioning of the motor of [Fig. 4] on the plate with the rack and pinion seen from above;

[0023] [Fig.6] [Fig.6] shows the positioning of the motor of [Fig.4] on the plate with the rack and pinion in front view;

[0024] [Fig.7] [Fig.7] represents an exploded isometric view of an actuator of locking the device of [Fig.1] with the corresponding fixing elements according to the invention;

[0025] [Fig.8] [Fig.8] represents the cross-section of the rotation and fixing device of the [Fig.l] according to the section plane BB illustrated on [Fig.l](a);

[0026] [Fig.9] [Fig.9] shows an exploded isometric view of the fastening device and rotation according to another embodiment of the invention; and

[0027] [Fig. 10] [Fig. 10] represents an assembly of fixing and rotation device and light ramp according to the embodiment variant of [Fig. 9].

[0028] Detailed description of examples of embodiments of the invention

[0029] Detailed description of examples of embodiments of the invention

[0030] It should be specified here that elements of different embodiments can be combined together in an unlimited way to provide other embodiments, provided that they comply with the technical concept of the invention, as will be readily understood by a person skilled in the art upon reading this description.

[0031] The present invention further refers to the prior art for its implementation, concerning the detailed features not described such as, for example, less important elements generally used in the prior art in solutions of this type.

[0032] When an element is referred to, it is always implied that it may be "at least one" or "one or more" of it.

[0033] In the event of an enumeration of a list of elements or characteristics in this description, it is understood that the invention "includes" or "is made up of" these elements.

[0034] In the case of an enumeration of features within the same sentence or bulleted list, one or more of the individual features may be included in the invention without relation to the other features of the list.

[0035] Two or more of the parts (elements, devices, systems) described above can be freely associated and considered as sets of parts according to the invention. Methods of implementation

[0036] With reference to [Fig.1], an alternative embodiment of a fixing and rotation device 100 according to the present description is illustrated.

[0037] Figure 2 shows a signal light bar 200 applied to the fixing and rotation device 100 of Figure 1. It can be seen that the bar 200 can rotate about a vertical axis Z parallel to the direction of gravity and perpendicular to a transverse plane XY, defined by a first direction (X), for example parallel to a direction of travel of the vehicle, and a second direction Y.

[0038] The maximum angular range of the fixing and rotation device 100 is forty-five degrees both clockwise (Figure 2(b), maximum angular position ^max) and counterclockwise (Figure 2(c), minimum angular position relative to a zero angular position % conventionally, the zero angular position can be chosen as that in which a rectangular signal light bar 200, with a folding panel 210 inside a rectangular frame 220, is in a predetermined angular position, for example perpendicular to the direction of travel of the vehicle ([Fig.2](a)).

[0039] It should also be emphasized that, generally speaking, commercially available signal light bars 200 have by their nature (without orientation) an angular visibility within a range of plus or minus thirty degrees relative to the zero angular position ^o-

[0040] Consequently, a signal light ramp 200, applied to the fixing and rotation device 100 according to the present invention, is characterized by an angular visibility within an interval of plus or minus sixty-five degrees with respect to the zero angular position Sq.

[0041] With reference to [Fig.3], an exploded view is shown in isometric view of the fixing and rotation device 100 of [Fig.1].

[0042] The fixing and rotation device 100 comprises a group of fixed elements 10, 11, 20, 30, 60, 70, 71, 75, 80 rigidly connected together in the form of a fixed base that can be securely fastened to the roof of the vehicle (not shown in the figures) on a first side of the fixed base, and a group of rotating elements 43, 44, 53, 54, 90 that can be securely fixed to the equipment 200 and can rotate about the vertical axis Z relative to the group of fixed elements 10, 11, 20, 30, 60, 70, 71, 75, 80.

[0043] More specifically, and according to an advantageous embodiment, the group of fixed elements 10, 11, 20, 30, 60, 70, 71, 75, 80 comprises a mounting plate 10 configured for attaching the mounting and rotation device 100 to the vehicle roof by means of suitable bolts. According to the illustrated embodiment, the mounting plate 10 is rectangular like the light bar 200, with optional projections 30 described in more detail below.

[0044] Preferably, two metal wires are inserted between the fixing plate 10 and the roof of the vehicle.

[0045] Advantageously, the group of fixed elements 10, 11, 20, 30, 60, 70, 71, 75, 80 comprises a rack plate 20, which can be fixed securely to the fixing plate 10 on a second side of the fixed base opposite said first side of the fixed base with respect to said vertical axis (Z).

[0046] The rack plate 20 includes a toothed side 21 curved inside the rectangular extension shown.

[0047] Advantageously, leveling washers can be inserted between the rack plate 20 and the fixing plate 10.

[0048] According to an advantageous embodiment, two finishing plates 30 having a semi-circular edge are optionally attached to the fixing plate 10, in order to accommodate at least one rubber seal applicable along the perimeter of the fixing plate 10.

[0049] As mentioned, the rack plate 20 is fixed with respect to the transverse plane XY and has the function of limiting the movement of the pinion of a motor 40, which will be described in more detail below.

[0050] Advantageously, a low-friction sliding plate 60, preferably made of polyamide, can be positioned above the rack plate 20.

[0051] Advantageously, a positioning ring 70 for stops with (six) respective sliding stops 71 can be positioned on the sliding plate 60. Said sliding stops 71 are arranged such that each sliding stop 71 is internally tangent to the opening of an anchor plate 90, creating a concentric constraint between the group of fixed elements 10, 11, 20, 30, 60, 70, 71, 75, 80 (of which the sliding plate 60, the positioning ring for stops 70 and the six sliding stops 71 are part) and the group of rotating elements 43, 44, 53, 54, 90 (of which the anchor plate 90 is part).

[0052] Advantageously, a respective washer 75, preferably made of polyamide, can be placed in correspondence with each sliding stop 71.

[0053] Advantageously, to enclose on their upper part the group of fixed elements 10, 11, 20, 30, 60, 70, 71, 75, 80, a closing plate 80 is present, with self-drilling screws 81 passing, in order, through the washers 75, through the stops 71 of the positioning ring for stops 70, through the anchor plate 90, through the sliding plate 60 and through the rack plate 20.

[0054] The self-drilling screws 81 do not prevent the rotation of the anchor plate 90, although they hold it tightly between the washers 75 and the sliding plate 60. The anchor plate 90 is thus free to rotate about the vertical axis Z by sliding on the low-friction polyamide elements, without being able to move in the X, Y, Z directions insofar as the movement is prevented by the centering of the self-drilling screws 81 and by the fact that the closing plate 80 is locked onto the fixing plate 10, keeping the assembly compressed.

[0055] The fixing and rotation device 100 further includes rotation means 40 configured to rotate, around the vertical axis Z, the group of rotating elements 43, 44, 53, 54, 90 relative to the group of fixed elements 10, 11, 20, 30, 60, 70, 71, 75, 80 between the minimum angular position (dmin) and the maximum angular position (^min) relative to the zero angular position (¾).

[0056] According to a particularly advantageous embodiment, the rotation means 40 comprise a motor 40 with a geared motor 41 extending in an extension direction and a pinion 42. The pinion 42, by means of an angular transfer on the geared motor 41, can rotate around a direction perpendicular to said extension direction and parallel to the vertical direction Z.

[0057] Preferably, as illustrated in [Fig. 4], the motor 40 is fixed between a shaft support bracket 43 and a motor mounting plate 44 using suitable bolts. The motor mounting plate 44 is, in turn, fixed to the equipment 200 using suitable bolts.

[0058] Advantageously, said pinion 42 of the motor 40 is a toothed pinion 42. The pinion 42 is arranged with respect to the toothed side 21 of the rack plate 20 so as to form a rack gear, so as to guarantee the correct and constraining distance between the pinion 42 and the toothed side 21.

[0059] With reference to figures 5 and 6, since the toothed pinion 42 of the motor 40 is locked inside the rack 21 of the rack plate 20, the rotation of the pinion 42 causes the rotation, around the vertical axis Z, of the motor 40 and the group of rotating elements 43, 44, 53, 54, 90, and consequently of the equipment 200 attached thereto.

[0060] The fixing and rotation device 100 further includes rotation blocking means 50, configured to prevent the rotation of the group of rotating elements 43, 44, 53, 54, 90 in a locking angular position.

[0061] In accordance with a particularly advantageous embodiment and with reference to Figures 7 and 8, the means for blocking the rotation 50 comprise a first 50 and a second 50 blocking actuators (on [Fig.7] a single blocking actuator 50 is shown).

[0062] Advantageously, the first 50 and second 50 locking actuators comprise a first 51 and a second 51 respective conical heads movable longitudinally relative to a first 52 and a second 52 respective actuator bodies.

[0063] Preferably, the first 50 and the second 50 locking actuators are fixed by means of a respective actuator-carrying plate 53 to a support plate 54 by suitable bolts. Each support plate 54 can then be fixed to the equipment 200.

[0064] Corresponding to the locking actuators 50, the mounting plate 10 comprises a first 11 and a second 11, respectively, female centerings. The conical head 51 of the locking actuator 50 can be inserted into said first 11 and second 11 female centerings in order to lock the rotation of the locking and rotation device 100 in the locking angular position.

[0065] The fixing and rotation device 100 further includes at least one first angular sensor 91 configured to measure the current angular position of the group of rotating elements 43, 44, 53, 54, 90 relative to the group of fixed elements 10, 11, 20, 30, 60, 70, 71, 75, 80. Preferably, said first angular sensor 91 is a magnetic angular sensor.

[0066] Advantageously, in addition to the first angular sensor 91, the fixing and rotation device 100 according to this description also includes a second angular sensor 92 configured to detect the zero angular position

[0067] Preferably, said second angular sensor 92 is a micro-switch, more preferably a micrometric limit switch.

[0068] Advantageously, said micro-switch 92 is fixed on the anchor plate 90.

[0069] The micro-switch 92 allows further control of the safety of the angular position for the authorization of activation of the blocking actuators 50 in correspondence with the zero angular position #o- During the movement of the vehicle, in fact, for safety reasons, it is necessary that the equipment 200 maintain a position perpendicular to the direction of travel.

[0070] Advantageously, the second angular sensor 92 is further configured to send to a central control unit at least one activation signal for the rotation blocking means 50, at the time when it detects the zero angular position #o.

[0071] The fixing and rotation device 100 can further be connected to a user interface (not shown) configured to send an activation signal for the rotation means 40 and an angular end-of-rotation position. The angular end-of-rotation position is an angular position between the maximum angular position &max and the minimum angular position

[0072] Preferably, said user interface is located inside the vehicle.

[0073] The fixing and rotation device 100 further comprises a unit of central control configured for: • receive, from the first angular sensor 91, the angular position of the group of rotating elements 43, 44, 53, 54, 90 relative to the group of fixed elements 10, 11, 20, 30, 60, 70, 71, 75, 80; • receive, from the user interface, the activation signal of the rotation means 40 and the angular position of the end of rotation; • activate the rotation means 40 based on the activation signal of the rotation means, the current angular position and the final angular position of rotation, and the angular position of the group of rotating elements 43, 44, 53, 54, 90; and • activate the rotation locking means 50 in the locking angular position.

[0074] Advantageously, the central control unit is further configured to receive at least one activation signal for the rotation blocking means 50 and to activate the rotation blocking means 50 accordingly.

[0075] According to an advantageous embodiment, said locking of the fixing and rotation device 100 is associated with the release of the vehicle's parking brake: in this situation, the conical heads 51 of the locking actuators 50 protrude to insert into the respective female centering 11, thus locking the fixing and rotation device 100.

[0076] When the parking brake is engaged, the first 51 and second 51 conical heads of the locking actuators 50 come out of the first 11 and second 11 respective female centers, allowing the rotation means 40 to rotate the fixing and rotation device 100 again.

[0077] According to yet another embodiment, with reference to Figures 9 and 10, a mounting and rotation device 300 is provided for equipment 200 applicable to the roof of vehicles, for example, light bars for signaling. The device 300 of the present invention allows the equipment 200 to be oriented so as to ensure its visibility in all operating situations, in accordance with the embodiments described above. The device 300 comprises a group of elements 310 fixed under the equipment 200 and rotated along with the equipment, and a group of elements 350 fixed on the roof of the vehicle and relative to which the group 310 rotates.The group of rotating elements 310 is represented, for example, by: two lateral brackets 311 with a housing for locking actuators in position 316 (with an actuator body 372 and a conical HEAD 371); a motor support bracket 312; a thermoformed housing 313 for the moving part; a central rotation plate 314. This group of ROTATING elements 310 is fixed by suitable bolts (not shown) under central dies on the face of the equipment 200 facing the device 300 (face not shown).

[0078] The group of elements fixed to the vehicle 350 below the group 310 may include: a base plate 351 with a rack for drive 352 and a friction plate 353. The flat plate 354, which forms part of the base plate 351, has two centering devices 330 with bearings 355 fixed to it, designed to ensure the correct positioning of the actuators 316 during the locking phase. The rotation position is detected by a magnetic proximity sensor 317. Two mechanical limit switches (not shown) fixed to the flat plate 354 ensure that the movement is stopped in case of malfunctions.The zero-degree ramp position locking actuators 316 are activated and inserted into the female centering devices (not shown), at the ends of the fixed flat plate 354, only when the vehicle's handbrake (not shown) is released and the device is in the zero position; the position is taken by a magnetic proximity sensor 317 which reads the +45° -45° and zero-degree positions, with an accuracy of + / -4 degrees and zero degrees, and optionally by a micro-switch 356, via the zero-degree position precision reading cam input 370, thereby activating the zero-degree locking actuators 316. For the assembly of the device, a sliding plate made of Pa 359 is positioned in the center of the fixed element group 310, above the friction plate 353. Above this is positioned the group 310 fixed under the channels of the equipment 200, which can be a ramp with modifiable messages.The group 310 is fixed under the device 200 and supported on the block 350, with the sliding plate in Pa 359 inserted between the central rotation plate 314 and the fixed plate 353. The two blocks are concentric, thanks to the stops 360 and the bearings 355, which, being mounted on centering shafts (not shown), precisely fixed to the base plate 351, guarantee a precise positioning of the zero degree position, by means of the suitable screws 362, the metal washers 363 and a central cross member 367.

[0079] The rotating block 310 is clamped onto the fixed block 350 by means of threaded inserts (not shown) formed in the base plate, allowing the former to rotate through the sliding of the central rotating plate 314 between the sliding plate 359 and the sliding washers 365. In this way, the two blocks 310 and 350 are clamped to each other, but the rotating block 310 can rotate about the Z-axis to allow the central rotating block 314 to slide on the Pa elements 359 and 365 that hold them coupled. Finally, the two actuators 316 are mounted on the elements in the rotating block 310, followed by the motor (with geared motor 369) with pinion 366, which centers the pinion 370 on the teeth of the rack 352.

[0080] Also described is a motor vehicle (not shown in the figures), comprising parking brake engagement means, as well as a fixing and rotation device 100 fixed on the roof of the motor vehicle and including a central control unit according to one of the preceding embodiments, in which the rotation blocking means 50; 316 are activated by the central control unit upon receipt of an activation signal of the vehicle's parking brake engagement means.

[0081] In the motor vehicle, the equipment 200 may be, as indicated above, a light signaling ramp with a rectangular base and in which said zero angular position #o is a position in which the long side of the rectangular base is disposed along the second direction Y and the short side is disposed along the first direction X when the latter is parallel to the direction of travel of the motor vehicle. Advantages of the invention

[0082] By means of the fixing and rotation device 100 according to the present invention, it is possible to rotate a piece of equipment 200, for example a light bar with retractable information panel, installed on the roof of a vehicle; in this way, it is possible for a road user to view the equipment 200 more efficiently and immediately.

[0083] Therefore, in emergency intervention conditions, the fixing and rotation device 100 allows the vehicle on which it is installed to position itself functionally in relation to the road flow, for example at an angle to the direction of travel on the roadway (for example to carry out a traffic diversion), and to be able to move out of the operational signaling position in the shortest possible time, so as not to obstruct road traffic.

[0084] The invention also has the advantage of a better definition of the light point (for better visualization of written signal messages) compared to the prior art.

[0085] The preceding paragraphs have described preferred embodiments and suggested variants of the present invention, but it should be emphasized that a person skilled in the art may make modifications and changes without going out of the scope of protection of the invention, as defined by the attached claims.

Claims

1. Demands 1. A fastening and rotation device (100; 300) configured to fix equipment (200) to the roof of a vehicle, and to rotate the equipment (200) about a vertical axis (Z) perpendicular to a transverse plane (XY) defined by a first direction (X), and a second direction (Y) perpendicular to the first direction (X), the fastening and rotation device (100; 300) comprising: - a group of fixed elements (10, 11, 20, 30, 60, 70, 71, 75, 80; 351, 352, 353, 354, 357, 358), rigidly connected to each other in the form of a fixed base (350) which can be securely fastened to the roof of the vehicle on one side of the fixed base; - a group of rotating elements (43, 44, 53, 54, 90; 310, 361, 359), rigidly connected to each other, which can be securely fixed to the equipment (200) and which can rotate around the vertical axis (Z) relative to the group of fixed elements (10, 11, 20, 30, 60, 70, 71, 75, 80; 351, 352, 353, 354, 357, 358); - rotation means (40; 366) configured to rotate the group of rotating elements (43, 44, 53, 54, 90; 310, 361, 364) relative to the group of fixed elements (10, 11, 20, 30, 60, 70, 71, 75, 80; 351, 352, 353, 354, 357, 358) between a minimum angular position (0WH) and a maximum angular position (0WH) relative to a zero angular position (0q) in which the equipment (200) is in a predetermined angular position; - at least one first angular sensor (91; 317) configured to measure the angular position of the group of rotating elements (43, 44, 53, 54, 90; 310, 361, 364) relative to the group of fixed elements (10, 11, 20, 30, 60, 70, 71, 75, 80; 351, 352, 353, 354, 357, 358); and - a central control unit configured to: - receive, from said at least first angular sensor (91; 317), the current angular position of the group of rotating elements (43, 44, 53, 54, 90; 310, 361, 364) relative to the group of fixed elements (10, 11, 20, 30, 60, 70, 71, 75, 80; 351, 352, 353, 354, 357, 358); - receive an activation command for the rotation means (40; 366) and an angular position for the end of rotation; and - activate the rotation means (40; 366) according to the activation order of the rotation means, and the current angular position and from the angular position of the end of rotation, until said angular position of the end of rotation is reached.

2. 2. Fixing and rotation device (100; 300) according to claim 1, wherein: - the group of fixed elements (10, 11, 20, 30, 60, 70, 71, 75, 80; 351, 352, 353, 354, 357, 358) comprises a rack (20; 352) integral with a base plate (10; 354) on a second side of the fixed base opposite said first side of the fixed base with respect to said vertical axis (Z), the rack (20; 352) comprising a curved toothed side (21; 352); and - the rotation means (40; 366) comprise a motor (40; 366) having a geared motor (41; 369) extending in an extension direction and a toothed pinion (42; 370) capable of rotating in a direction perpendicular to said extension direction and parallel to said vertical axis (Z), and in which: - the toothed pinion (42; 370) and the curved toothed side (21; 352) of the rack (20) are arranged so as to constitute a rack gear; and - the geared motor (41; 369) of the motor (40;366) is fixed in a manner integral with the group of rotating elements (43, 44, 53, 54, 90; 310, 361, 364), such that a rotation of the toothed pinion (42; 370) on the curved toothed side (21; 352) causes a rotation of the group of rotating elements (43, 44, 53, 54, 90; 310, 361, 364).;

3. 3. Fixing and rotation device (100; 300) according to any one of the preceding claims, wherein: - the fixing and rotation device (100; 300) further comprises rotation-locking means (50; 316) configured to prevent rotation of the group of rotating elements (43, 44, 53, 54, 90; 310, 361, 364) in a locking angular position; and - the central control unit is further configured to receive at least one activation signal of the rotation-locking means (50; 316) and then activate the rotation-locking means (50; 316).

4. 4. Fixing and rotation device (100; 300) according to claim 3, wherein: - the means for blocking the rotation (50; 316) comprise a first (50; 316) and a second (50; 316) blocking actuators respectively having a first (51; 371) and a second (51; 371) conical heads (51; 371) movable longitudinally relative to a first (52; 372) and a second (52; 372) actuator body (52; 372); and - the base plate (10; 354) includes a first (11; 330) and a second (11; 330) female centerings, the first (51; 371) and the second (51; 371) conical heads being inserted respectively into said first (11; 330) and second (11; 330) female centering elements in the angular locking position.

5. 5. Fixing and rotating device (100; 300) according to any one of claims 3 or 4, wherein the fixing and rotating device (100; 300) further comprises a second angular sensor (356) configured to detect the zero angular position (¾) and send at least one activation signal of the rotation blocking means (50; 316) to the central control unit.

6. 6. Fixing and rotating device (100; 300) according to any one of the preceding claims, wherein the extension of the fixing and rotating device (100; 300) is oblong in the transverse plane (XY).

7. 7. Fixing and rotating device (100; 300) according to claim 6, wherein said equipment (200) is a rectangular-based light signaling ramp.

8. 8. Motor vehicle comprising parking brake engagement means, as well as a fixing and rotation device (100; 300) fixed on the roof of the motor vehicle and including a central control unit according to claim 3 or according to claim 3 and one of claims 4 to 7, wherein the rotation blocking means (50; 316) are activated by the central control unit upon receipt of an activation signal of the vehicle's parking brake engagement means.

9. 9. Motor vehicle according to the preceding claim, wherein said equipment (200) is a light signaling ramp with a rectangular base and wherein said zero angular position (¾) is a position in which the long side of the rectangular base is disposed along the second direction (Y) and the short side is positioned along the first direction (X) when this is parallel to the direction of travel of the motor vehicle.

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