ITCL20110008A1 - ACOUSTIC DEVICE SAVES CHILDREN FOR CAR - Google Patents

Description

DESCRIPTION

â € œ ACOUSTIC AND OPTICAL DEVICE TO SAVE CHILDREN FOR VEHICLES â €

FIELD OF TECHNIQUE TO WHICH THE INVENTION REFERS: Equipment for motor vehicles.

PRIOR STATE OF THE ART

Car manufacturers today are competing to increase accessories concerning, in particular, safety in vehicles but, nevertheless, the news of recent times makes us reflect on the fact that even when it is believed that now we have reached the Apex of safety, there is always a flaw that emerges and that, unfortunately, makes us realize that we must never stop working to make vehicles safer.

The reference is to the deaths of children caused by the distraction of parents who forget them in the back seats of cars.

GOAL THAT INNOVATION INTENDS TO REACH

The purpose, therefore, of this invention is to avoid that a person, perhaps because he is busy with commitments, from the frenzy that today's life imposes and why not, even from the routine, leaving the vehicle from forgetting the presence of the child (in the meantime, perhaps because he has fallen asleep, does not attract the attention of the companion), who is left inside the passenger compartment, perhaps for several hours, sometimes causing even death.

Therefore, the specific object of the present invention forms an acoustic and optical device which is triggered by placing the child in the vehicle, generally in the rear seat, but not necessarily, or by arranging the accessories used for its transport, such as child seats, baby carrier, etc., or, again, by fastening the seat belts, and that, by the driver's descent from said vehicle, with the opening of his door (by means of a contact with button, or a pair of magnetic contacts, or the lock, or any other element related to opening, etc.) or, by getting up from the seat (by means of weighing cells installed in the seat), activates acoustic and / or optical elements to remind the driver that he must remove the child from the vehicle.

According to the invention, said acoustic and optical device could be triggered by the roll-up of the child seat or the child's insurance in the rear seat, or in another site of the vehicle, by means of one or each of the safety belts, through the insertion of its male element into the female one, by means of an electrical contact, which could be formed by a pair of metal blades, or by a button, etc., put into contact with its internal coupling mechanism, and connected to the acoustic and optical device.

Said optical and acoustic device, with the opening of one of the front doors, or with the driver getting out of the vehicle, would activate an acoustic and / or optical alarm, and / or the vibration and / or the sound emission of a small portable element or a remote control door opener, supplied with the vehicle, which would be suspended only with the re-closing of the door open or with the driver sitting back in his seat, and deactivated with the release of the belt used to secure the child or his car seat.

Furthermore, according to the invention, in order to prevent the consequent and annoying activation of the acoustic signal by triggering the of the elements of the device, one or more additional female coupling elements could be provided, perhaps of a different shape and / or color than the existing ones, to be added to the existing ones, which could be dedicated to the exclusive use of insuring the child or the seat.

Said new female coupling elements, inside them, will be equipped with an electrical contact, which could be formed by a pair of metal blades, or by a button, etc., connected to the device via cable or wireless, that with the insertion of the male element, of the existing seat belt, or of an additional male insertion element, supplied with the seat or other element, it will stimulate the said electrical contacts, directly, or for by means of the internal latching mechanism, triggering the elements of the device.

According to the invention, as an alternative to seat belts, said acoustic and optical device could be activated by means of one or more weighing cells, located throughout the rear seat or, only, in correspondence with the point or points where the child seat will be positioned, or in another probable site which, when the driver gets out of the vehicle, and / or when at least one of the front doors is opened, will activate acoustic and optical warnings, and / or vibration and / o sound emission of the remote control, door openers, supplied with the vehicle, which could be suspended only when the driver sits back in his seat, or when the door is closed, and deactivated only when the child is removed from the seat.

Furthermore, according to the invention, in order to avoid the activation of the acoustic signal each time the front doors are opened, because they are triggered by the weight of the adults who use the seat in which the weighing cells are placed, the latter could be calibrated taking into account a weight threshold within which triggering should take place, which could be calculated taking into account the weight of a seat with any accessories, with the addition of a tolerance, beyond which the system it would activate up to a weight that should be the maximum weight, in the average of a child, with the addition of an excess tolerance, beyond which the said weighing cells would not activate the acoustic and optical device.

Still according to the invention, as an alternative to the aforementioned triggers, one or more presence detection sensors could be used, placed in the rear seat or in another probable site of the vehicle, to transmit to the device the presence of the child in the vehicle and, to the descent of the driver from his door, an additional actuating element of the device, one or more photocells, forming barrier beams, placed one in front of the other, on the pillars of the driver's door, would activate the buzzer and the optical one and / or the vibration and / or sound emission of the remote control, door opener, supplied with the vehicle, to be defused, like the others, by picking up the child from the vehicle. Furthermore, said sensors could be activated according to a body volumetric mass presence corresponding to that of a child in the minimum / maximum age of a car seat, before and after which they would not activate the trigger.

Still, according to the invention, a further actuator of the device could be represented by one or more weight sensors, or weighing cells, installed in the driver's seat which, connected via cable or wirelessly with the device, would activate the explanatory elements of alarm, acoustic and optical, which would be suspended when the driver sits down and deactivated when the child is removed from the vehicle.

Furthermore, according to the invention, if after the driver has descended and the consequent alarm expressed by the acoustic and optical elements, etc., the system still remains triggered, as the child's safety belt or seat belt has not been unfastened. or, alternatively, the sensors on which the child is positioned have not been put to rest, again due to his failure to withdraw, after a certain period of time, which could also correspond to a few minutes, a timer will activate, possibly to intermittent intervals, by means of a further element of the device, an acoustic and an optical signal, external to the passenger compartment, which will continue until the disarming has taken place and, that is, until the child is picked up from the seat rear or other probable site of the vehicle.

Also according to the invention, it could be envisaged that, at each ignition of the ignition, an acoustic and an optical warning, representing the latter the icon of the child and / or the seat and preferably positioned in view of the driver, emit, for a few seconds, their warning signals to remind him to secure the child (if he had forgotten to fasten his seat belt) and, at the same time, whether or not to leave the system active, therefore, if the conditions do not exist, as there are no children to be carried, the device could be deactivated preferably by means of a button. Therefore, when the male element is inserted into the female coupling element of the safety belt supplied with the vehicle, there would be no triggering.

According to the invention, the activation and deactivation of the acoustic and optical device could also take place by means of a remote control element, preferably the same data supplied with the vehicle, with the addition of at least one further contact dedicated to the child-saving device which, in order to communicate with the acoustic and optical device, must be pressed at least twice consecutively, to prevent it from giving unwanted commands by accidentally pressing it.

Furthermore, according to the invention, in order not to forget to reactivate the acoustic and optical device after its manual deactivation, which took place by means of the button, or the radio control, when the rear seat belts supplied are released and the acoustic device is switched off each time the ignition is switched off. and optical would automatically reactivate the system, if this had previously been deactivated.

Finally, according to the invention, if the owner of the vehicle does not have children within his family, he could have the opportunity to deactivate the system even permanently, with the possibility of reactivating it, even over time, directly from the control unit. or from another point that can be reached voluntarily and not accidentally, possibly with more than one operation to be carried out.

BRIEF DESCRIPTION OF THE DRAWINGS:

The present invention will now be described, for illustrative but not limitative purposes, according to its preferred embodiments, with particular reference to the figures of the attached drawings, in which:

Figure 1 is a perspective view of a first element of the acoustic and optical child-saving device for motor vehicles: in this case a child is shown, positioned in a child seat secured with the rear seat belts of the vehicle, which trigger the device ;

figure 2 is a schematic view of the acoustic and optical child-saving device for motor vehicles shown in figure 1: in this case the operating diagram of the device is shown by triggering the seat belts;

Figure 3 is a perspective view of a third element of the acoustic and optical child-saving device for motor vehicles: in this case a child is shown positioned in a child seat, placed in the rear seat of the vehicle, secured with an additional attachment element female to accommodate the male seat belt, to be used for child-saving use only, which will be placed alongside the existing one;

figure 4 is a further perspective view of the element of the acoustic and optical child-saving device for motor vehicles, shown in figure 3: in this case a child is shown positioned in a car seat which is equipped with its own male insertion element , which by inserting into the female coupling of the safety belt, will trigger the device;

figure 5 is a schematic view of the acoustic and optical child-saving device for motor vehicles shown in figures 3 and 4: in this case the operating diagram of the device is shown;

figure 6 is a schematic view of a further element of the acoustic and optical device for children for motor vehicles shown in figures 3, 4 and 5: in this case a portable element explaining the alarm of the device is shown;

Figure 7 is a schematic view of a third element of the acoustic and optical device for saving children for motor vehicles: in this case, the operating diagram of the device is shown through the use, for triggering, of load cells or pressure transducers or similar located in the rear seat of the vehicle, in addition to a new alarm actuator element represented by additional load cells or pressure transducers or the like installed in the driver's seat;

Figure 8 shows a schematic view of a fourth element of the acoustic and optical child-saving device for motor vehicles: in this case, the operating diagram of the device is shown through the use, for triggering, of presence detection sensors located in the area of the rear seat of the vehicle, and an additional actuator element of the alarm represented by photocells.

ANALYSIS OF THE ACHIEVED RESULT:

Referring to the figures of the attached drawings, and in particular to figures 1 and 2, a first solution of the acoustic and optical device for saving children for motor vehicles in question is shown, generically indicated with the alphabetic reference â € œAâ €, which shows a child , in any seat, secured to the seat as well as by means of the attachments it is equipped with, also by means of one of the seat belts, supplied with the vehicle, which triggers the acoustic and optical device.

The element â € œAâ € provides that a pair of metal blades 11 bis (but it could also be a button, etc.), placed inside the female coupling element 1, of the safety belts 2, are connected to the acoustic and optical device 3, by means of an electric cable 4 running along its 1 hooking cable 5 to the vehicle body 1 (but it could also be done wirelessly: infrared, radio, etc.) and that, by inserting in it 1 of the male element 11, of the said safety belt 2, it becomes the triggering element of the acoustic and optical device 3 to save children.

In fact, after having positioned the child in the seat 10 inside the vehicle 1, the child 10, previously secured to the vehicle by means of its attachments 13, will be wrapped with the safety belt 2 and locked by means of the connection with the Insertion of the male element 11 into the female coupling element 1 (FIG. 1). This insertion will directly stimulate, or through the mechanism supplied inside the female coupling element 1, a pair of metal blades 11bis which, remaining in contact, will close the electrical circuit acting as a trigger for the acoustic device and optical 3, which will put the acoustic signal 6, optical 66, timer 15, intermittent 16, and actuator 7 in a pre-alarm state (FIG. 2).

In fact, when the engine is switched off and / or the key 26 is removed from the ignition, the system could emit a short sound 6 and / or sound 66, in order to remind the driver of the presence of the child (without activating the alarm, as he could remain inside the passenger compartment) and, when the door 9 is opened, activated by the driver to get out of the vehicle, there will be the natural release of the button 7 which, closing the connection circuit, of the said "acoustic and optical device 3", will become the alarm actuator, activating the acoustic 6 and optical 66 signals (preferably placed together with the other signaling devices on the panel), which will appear, respectively, the first 6, with a sound, which could also be at first faint, to increase within a few seconds, the second 66, with a light signal, which could represent a child inside the seat 10, or similar. These emissions, sound and light, will continue they had until the driver's door 9 is closed, suspending the alarm.

Furthermore, if the child had remained in the child seat 10, as the driver, who had remained out in the meantime, had not taken him out, after a few minutes, a further element of the acoustic and optical device 3, timer 15, would activate a new signaling device. acoustic 17 and possibly also optical 18, external to the passenger compartment, which would continue to sound, respectively, the first 17 and the second 18, by means of an intermittent element 16, to flash, until the disarming of the Male element 11 from the female coupling element 1 of the safety belt 2 which will make the metal slats 1 Ibis move away, coinciding with the withdrawal of the child, from the seat 10 of the seat 12 of the motor vehicle, which will deactivate the circuit.

Wanting to allow the driver to get out of the vehicle, without the alarm being activated, but only for a very limited time, before opening the door 9, he will communicate his intentions to device 3, through the single pressing of a further pulsating element 19, and upon its return, by means of at least a double pressing of said button 19, it will communicate to the device 3 its presence, and the system reset, canceling the previously given order.

If the driver, after his descent from the vehicle, lingers, the device, as mentioned, after a very short period of time, would activate the acoustic elements 17 and optical 18, external to the vehicle, which would remain active until at the release of the belt 2, which secures the child, or with, at least, a double pressing of the button 19, which would restore the initial state of the system.

Finally, said acoustic and optical device 3, each time the panel is switched on, will activate said acoustic 6 and optical alarms 66 to remind the driver to secure the child with the belt, and if there is no child present in the vehicle , the device 3 could be deactivated by means of the said element 19, in order to reactivate itself, automatically, each time the engine is switched off, and / or with the removal of the key 26 from the panel.

With reference to the figures of the attached drawings, and in particular to figures 3, 4, 5 and 6, a second solution of the acoustic and optical child-saving device for motor vehicles in question is shown, generically indicated with the alphabetical reference â € œBâ €, whose operation and engagement mechanism remain substantially identical to those just described of the â € œAâ € element, but which is distinguished from it, essentially, by the fact that, in the rear seat 12 of the motor vehicle 1, or in another site suitable for the transport of the child, one or more additional elements of female Ibis coupling are added which, with the insertion in it Ibis of the existing male element 11 of the safety belt 2, or, alternatively, of an additional element of male insertion 14, with which the seat 10 could be equipped, would trigger the acoustic and optical device 3 (FIG. 4). Furthermore, a further explanatory element of the alarm could be, in addition to the acoustic elements 6 and optical elements 66, also a small portable element 20 (FIG. 9), which could be a mobile phone, etc., but which in this case was the radio control 20, supplied with the vehicle, was used to operate the doors.

Said new female coupling element Ibis could have different colors and / or shapes, in order not to confuse it with the female coupling element 1, when inserting the male element 11 or 14. In this way, the € ™ female coupling element 1 would be for the exclusive use of adults.

AHâ € ™ insertion of the male element 11 or 14 into the female coupling element Ibis, two metal blades 1 1bis, placed inside its internal Ibis, in contact with the coupling mechanism (but the trigger could take place only by inserting ), by means of an electric cable 4, running along its Ibis cable 5 to the vehicle body, the acoustic and optical device 3 would be triggered, with which the electric cable 4 connects it, allowing 3 to put of pre-alarm, with the contact of the methane blades 11 bis, its 3 elements which, upon opening the driver's door 9, would explicate their alarm function, with the activation of the acoustic elements 6 and optical 66, as well as, through its 3 further transmitter element 3bis, also of the small portable element 20, which in this case would be the same radio control 20 of the vehicle, which would explicate the alarm by means of a sound emission 202, and / or vibration 201 And, also wanting optics 203, which would be suspended with the double pressing of the button 21 of the radio control 20, while the deactivation would take place with the withdrawal of the child from the vehicle and / or the unfastening of his belt 2, as described in the previous solution.

With reference to the figures of the attached drawings, and in particular to figure 6, a third solution is shown of the acoustic and optical child-saving device for motor vehicles in question, generically indicated with the alphabetic reference â € œCâ €, which substantially functions like the elements â € œAâ € and â € œBâ € just described, being distinguished from them, essentially, by the fact that the trigger element, this time, is given by the presence of one or more load cells 8 or pressure or the like, which can be placed inside the entire rear seat 12 or, alternatively, at the point or points where the child seat 10 is to be positioned, while the actuator element of the device acoustic and optical 3 will be load cells 88 or pressure transducers or the like installed in the driver's seat 27.

When the child is positioned in the seat 10, the said load cells 8 or pressure transducers or the like, sensing that the threshold of the weight within which they have been calibrated has been exceeded, will activate the circuit, as if they were a switch, by means of an electric cable 4 which connects to the acoustic and optical device 3, which will put its elements in a pre-alarm state.

The driver, sitting in his driving seat, would put the device 3 in pre-alarm, by means of the load cells 88 or pressure transducers or the like installed in his seat 27, which with his getting up, and the consequent weight variation transmitted by the sensors 88, to the acoustic and optical device 3, would activate the acoustic explanatory elements 6 and optical 66, whose alarm explanation would be suspended when the driver resides on his seat 27, while the deactivation would take place with the withdrawal of the child from the ™ motor vehicle and / or the release of its belt 2, as described in the previous solutions.

In fact, if the child had remained in the seat 10, after a few minutes the timer 15 would activate a new acoustic signal 17 and possibly also optical 18, outside the passenger compartment, which would continue to sound and / or flash, until there it will be the putting into rest state of the load cells 8 or pressure transducers or the like, which would take place with the withdrawal of the child from the seat 10 of the rear seat 12 of the motor vehicle, which will deactivate the circuit.

Wanting to allow the driver to get out of the vehicle, without the alarm being activated, but only for a very limited time, before opening the door 9, he will communicate his intentions to device 3, through the single pressing of a further pulsating element 19, while on its return, by sitting back in its seat 27, the load cells 88 or pressure transducers or the like will transmit its presence to the device 3, automatically restoring the system, canceling the previously given order.

With reference to the figures of the attached drawings, and in particular to figure 7, a fifth solution is shown of the acoustic and optical child-saving device for motor vehicles in question, generically indicated with the alphabetic reference â € œDâ €, which substantially functions like the solutions â € œAâ €, â € œBâ € and â € œCâ € already described, being distinguished from them essentially by the fact that the triggering element of the acoustic and optical device 3, this time, is given by the presence of one or more attendance sensors 8bis, to be placed in an optimal point able to detect, and therefore, to trigger the acoustic and optical device 3 with the presence of the child placed in the rear seat 12 of the vehicle 1, which with the Opening of the driver's door 9 and crossing of the photocells 7bis, located on the pillars of the driver's door 9, so as to create one or more barrier beams, and connected to the acoustic or optical device 3, d would give rise to the clarification of the alarm, by means of the acoustic signal 6 and optical signal 66, which would be suspended when the driver's door 9 is closed again.

If the driver had not taken the child out of the seat 10, after a short time the timer 15 would activate a new acoustic signal 17 and possibly also optical 18, external to the passenger compartment, which would continue to sound and / or flash, until that the presence detection sensors 8bis would not be placed in a rest state, which would take place when the child is removed from the seat 10 of the rear seat 12 of the motor vehicle 1, which will disengage the circuit.

Finally, according to the invention, the connection between the acoustic and optical device 3 and the elements "which contribute to the alarm system to signal the presence of the child in the rear seat 12 of the vehicle could take place not only via cable, but also via infrared or wireless: radio, etc ..

The present invention has been described for illustrative, but not limitative purposes, according to its preferred embodiments and the positioning of the various elements, shown in the attached descriptive tables, is given above all by an opportunity of explanatory clarity and certainly not of functionality, but it is to be understood that the various solutions described could, among themselves, be interchangeable and if there are references, affinities, etc., with elements already supplied to the vehicles, it must be specified that these elements perform functions that solve different problems, and that variations and / or modifications may be made by those skilled in the art without thereby departing from the relative scope of protection, as defined by the attached claims.

V.

Claims (18)

CLAIMS V. 0 â € œ ACOUSTIC AND OPTICAL DEVICE TO SAVE CHILDREN FOR VEHICLES â € 1. Acoustic and optical device to save children for motor vehicles, in particular to warn the driver of the presence of a child, when he gets off the vehicle, characterized by providing a device capable of managing, via electric cable or via wireless: infrared, radio, etc., at least one trigger element placed in the seat of the rear seat of a motor vehicle or near it, or in any other place where the child is likely to be located, capable of being activated at the time of his or her placement on it seat, or on a child seat placed on a seat, or elsewhere, or, again, with the voluntary insertion of at least any insertion contact, in any trigger mechanism, or with the Fastening of the seat belts, as well as manifesting said activation when the driver gets up from the seat and / or when he leaves the vehicle, and / or with the opening of at least one of the doors by means of at least one audible warning device and, preferably, also at least an optical one, and to suspend it when the driver gets back up or down in his seat and / or with the closing of at least one of the front doors and, finally, to deactivate with the removal of the ignition contacts and / or with the removal of the child from the car seat or seat, or other site of the vehicle or, again, if necessary, through an additional element, which could also be a button or other element capable of performing this function. 2. Acoustic and optical child-saving device for motor vehicles according to claim 1, characterized by the fact that at least one said trigger mechanism, of the acoustic and optical device could be the one, made in combination between the female coupling element 1 and the Male insertion element 11, of the safety belt 2, used to secure the child or wrap the seat, which by inserting the female coupling element 1 into the interior by the Male element 11, of the safety belt 2 or by any other type of insertion element, both of the vehicle and of any accessories, would urge, by means of the mechanism, supplied with the element female coupling 1 or, directly, with the insertion 11 only, a pair of metal blades 1 Ibis (FIG. 2), (but it could be any element capable of activating the contact, closing the electrical circuit, such as, for example, a pushbutton, etc.), connected to the acoustic and optical device 3, which, remaining joined together, would close the electric circuit triggering the said alarm elements by means of the said acoustic and optical device 3 (FIGS. 1 and 2). 3. Acoustic and optical child-saving device for motor vehicles according to claim 1, characterized by the fact that at least one said trigger mechanism of the acoustic and optical device 3, could be performed by means of the insertion of the male element 11 of the safety belt 2, or by means of any other type of insertion element, both of the vehicle and of any accessories, in a further female Ibis coupling element which, to distinguish itself, could have color and / or shape different from that of the female coupling 1, supplied with the vehicle 1, of the seat belt 2 (which would be connected, to the acoustic and optical device 3, by means of an electric cable 4 running along its Ibis cable coupling 5 to the car body, or via wireless: infrared, radio, etc.), which, by means of the coupling mechanism, supplied with its internal Ibis or, directly, by simply inserting said male element 11, would go to solicit a pair of metal blades 11 bis (but it could be any element capable of activating the contact, such as a button, etc.), which, remaining together 11 bis, would close the electrical circuit triggering said alarm elements by means of of the said acoustic and optical device 3. In this case, the said female coupling element 1 would perform the sole function of safety belt for adults while the said new Ibis element would be dedicated only to the triggering of the child-saving device 3 (FIG. 3, 4 and 5). 4. Acoustic and optical child-saving device for motor vehicles according to claim 1, characterized in that said trigger, for the activation of the acoustic and optical device 3, could take place by inserting it into the female coupling element 1, or 1bis, of any element, or by means of a further male element 14, supplied with the seat 10, which would stimulate, by means of the mechanism, placed inside the said female coupling element, or even by inserting it only, a pair of metal blades 11bis (but it could be any element capable of closing the contact, such as a button, etc.), connected to said acoustic and optical device 3, with an electric cable or via wireless: infrared, radio, etc., which, remaining together, would close the electric circuit triggering said alarm elements by means of said device 3 (FIG. 4). 5. Acoustic and optical child-saving device for motor vehicles according to claim 1, characterized in that the trigger element of the acoustic and optical device 3 could consist of one or more weight sensors, or load cells 8 or transducers of pressure, or the like, which could be placed inside the entire seat of the rear seat 12 or, alternatively, at the point or points where the child seat 10 is expected to be positioned (FIG. 7), or in another site, which alone or in combination with the seat belts, or other triggering element, would activate the acoustic and optical device 3. 6. Acoustic and optical child-saving device for motor vehicles according to claim characterized in that said weight sensors, or load cells 8 or pressure transducers, or the like, could be calibrated so as not to trigger the acoustic and optical device 3 within a weight that can slightly exceed that of a child seat 10, with any accessory, placed 8 on top of it in a stable plan, upon exceeding which threshold, which occurs with the positioning of the child in it 10, they could enter into a state of alert by activating the circuit by means of an electric cable 4, which connects them to the acoustic and optical device 3, or via wireless: infrared, radio, etc. (FIG. 7). 7. Acoustic and optical child-saving device for motor vehicles according to claim 5, characterized in that said weight sensors, or load cells 8 or pressure transducers, or the like, could be calibrated taking into account a weight threshold within which triggering should take place, which could be calculated taking into account the weight of a seat with any of its accessories, with the addition of a certain tolerance, beyond which the system would activate up to a weight that could be the maximum, calculated in the average weight of a child of child seat age, with the addition of a certain excess tolerance, beyond which, the said weight sensors, or load cells 8 or pressure transducers, or the like, would not activate the acoustic device and optical 3 or, again, would activate the system if the presence of volumetric and / or body mass, detected by said load cells 8 would correspond to that of a child in minimum / maximum age, seat, before and after which they would not activate the trigger (FIG. 7). 8. Acoustic and optical device for saving children for motor vehicles according to claim 1, characterized in that the trigger element of the acoustic and optical device 3 could be constituted by one or more presence and volumetric mass detectors 8bis, to be positioned in the rear seat 12 or in the probable area where the child seat 10 is located and connected to the acoustic and optical device 3, via an electric cable 4 or via wireless, infrared, radio, etc., which 3 would trigger it, alone or in combination with seat belts, only if the presence of volumetric and body mass would correspond to that of a child in the minimum / maximum age of a car seat, before and after which they would not activate the trigger (FIG. 8). 9. Acoustic and optical child-saving device for motor vehicles according to one of the preceding claims, characterized in that an actuator element of the acoustic and optical device 3 could be an element in contact 7 with at least one of said front doors 9, such as a button 7 (for example, the same supplied to motor vehicles 1 for switching on the ceiling lights when the doors are opened), or magnetic contacts, etc. or, again, the lock, or any other element correlated with the opening of at least one of them 9, which would activate the said acoustic and optical device 3, to activate the explanatory elements of alarm 6 and 66 and / o 20 when at least one of the front doors 9 is opened, preferably for the driver, to remind him to pick up the child from the vehicle. 10. Acoustic and optical child-saving device for motor vehicles according to one of the preceding claims, characterized in that an actuating element of the acoustic and optical device 3 could be one or more weight sensors, or load cells 88 or pressure transducers, or installed in the driver's seat 27, or in contact with it, which when the driver gets up from the seat 27, to exit the vehicle, will activate said optical and acoustic device 3 to activate the explanatory elements of the alarm 6 and 66 and / or 20 to remind the driver to pick up the child from the vehicle (FIG. 7). 11. Acoustic and optical child-saving device for motor vehicles according to one of the preceding claims, characterized by the fact that an actuator element of the acoustic and optical device 3 could be one or more photocells 7bis, or similar, located on the supporting uprights of the car door. driver, who would activate the said optical and acoustic device 3 when the driver exits from his door, activating the explanatory elements of the alarm 6 and 66 and / or 20, to remind the driver to pick up the child from the ™ motor vehicle 1 (FIG. 8). 12. Acoustic and optical child-saving device for motor vehicles according to one of the preceding claims, characterized in that an actuating and / or explanatory element of the acoustic and optical device 3, could be a small portable element 20, in the possession of the driver, which could be , for example, the same remote control 20 used for opening the doors, supplied with the vehicle, or a mobile phone, etc., which, if involved, triggers the optical and acoustic device 3 with the traditional wireless system with radio waves , infrared, etc. 220, at the moment of exiting the vehicle, by means of a radio wave system, or of another type, with just moving away from the acoustic and optical device and / or from any triggering element, could emit an alarm acoustic 202, and / or optical 203, and / or vibrating 201, which could be suspended, upon ascent into the vehicle, as it would restore the dialogue between said portable element 20 and the trigger element, or by means of at least a further 20 of its contact 21, which could also be a button (which, to distinguish itself, could also be different from the others), by pressing which, the said acoustic and optical device 3 would communicate the suspension of the said explanation of the ™ alarm or the suspension of any temporary provisions previously given (FIG. 6). 13. Acoustic and optical child-saving device for motor vehicles according to one of the preceding claims, characterized in that some explanatory alarm elements, activated by the child-saving device 3 when the driver descends or gets up from the seat 26 from the vehicle , and / or with the opening of at least one of the front doors 9, there could be one or more acoustic elements 6 and optical 66, preferably installed in the passenger compartment, but not necessarily, whose alarm could be suspended with the driver sitting back in his seat 27 and / or with the reclosing of at least one of the front doors 9 and / or with the contact 21 of the element 20 and / or through an additional element 19, as well as deactivated when the child is picked up from the vehicle and / or the release of the belts 2 which secure the said child or wrap the seat 10. 14. Acoustic and optical child-saving device for motor vehicles according to one of the preceding claims, characterized in that a further explanatory element of the alarm could be an acoustic element 17 and, possibly, also an optical element 18, external to the passenger compartment (which could be supplied with the vehicle), which by means of further elements of the device 3, timer 15 and, possibly, intermittent 16, could be activated, if the device 3 has not been disarmed due to the failure to withdraw the child from the Vehicle, after an explicit alarm when the driver leaves the vehicle. 15. Acoustic and optical child-saving device for motor vehicles according to one of the preceding claims, characterized in that a further element of the acoustic and optical device 3, which could also be at least a button 19, or any element which, through its use, could allow the driver both not to activate the device, momentarily, in the event of the absence of children in the vehicle, and not to activate the explanation of the alarm, once triggered, in the event of a temporary descent from the vehicle Vehicle for a very short period of time, beyond which, the device 3 would activate said elements, external to the passenger compartment, acoustic 17 and optical 18, which could be suspended or deactivated by at least one of the methods described in one of the preceding claims , while in the case of its ascent within the pre-established time limit, the cancellation of the p command could be transmitted to device 3 previously imparted and, therefore, the restoration of the previously suspended function, possibly by means of an action different from the previous one, in order to avoid confusion such as, for example, carrying out a double pressing of it or other. 16. Acoustic and optical child-saving device for motor vehicles according to one of the preceding claims, characterized in that, when the engine is switched off and / or the key 26 is removed from the vehicle ignition 1, the acoustic and optical device 3 could emit a short acoustic signal 6 and / or optical 66 and / or 203, to remind the driver of the presence of the child, and moreover it could reactivate 3 automatically in any circumstance, even if it had been previously deactivated by means of a button 19. 17. Acoustic and optical device for saving children for motor vehicles according to one of the preceding claims, characterized in that said device 3, at each restart of the panel and / or of the engine, could be manifested by means of an optical signal 66, which could represent the Icon of the child and / or seat, etc., and could also be accompanied by the activation of an acoustic signal 6, and / or 201, and / or 202 and / or 203, in order to remind the driver to fasten the belt to the child, if he had not already done so, while its 3 permanent deactivation could take place by intervening directly on it 3, or on a further element 23 possibly located in the bonnet, or in another point reachable voluntarily and not accidentally, possibly by carrying out more than one operation. 18. Acoustic and optical device to save children for motor vehicles, in particular to warn the driver, at the moment of his descent, of the presence of a child in the vehicle, by activating an acoustic and optical and / or vibrating signal, when opening at least one of the front doors and / or when the driver gets up from his seat, according to each of the preceding claims substantially as illustrated and described.