ES2675365T3 - Mobile support for an entertainment device and / or information - Google Patents

Abstract

Mobile support (40) for an entertainment and / or information device (50), the mobile support (40) being designed to be applied to the bottom side (310) of a substantially horizontal support surface (31), the support comprising ( 40) mobile: - a set of linear guides (41) designed to allow the device (50) to move in a substantially horizontal plane n, at least from a rest configuration (R) to a first transition configuration (T1) ; - a set of hinges (42) designed to allow the device (50) to rotate about a substantially horizontal rotation axis (X) at least from a first transition configuration (T1) to a first operational configuration (U1); characterized in that the set of linear guides (41) comprises a first pair of guides (411) on which the device (50) can be slidably mounted, through the hinge assembly (42), and that the first pair of guides (411) is, in turn, slidably mounted on a second pair of guides (412) to obtain a telescopic effect.

Description

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DESCRIPTION

Mobile support for an entertainment device and / or information

The present invention relates to a mobile support for an entertainment and / or information device. In particular, a mobile support that allows a user to interact in a simple and efficient way with an entertainment and / or information device.6

In the clinical setting, the use of entertainment devices and / or information for patients who undergo forms of treatment that require a connection to a machine for a long period of time is known. During such forms of treatment, the patient often cannot use his arm that is connected to the machine. Forms of treatment of this type may consist, for example, in apheresis, where the donor can remain connected to the machine for about an hour or more.

However, the treatment for which it is possible to obtain more significant advantages is undoubtedly the hemodialysis treatment. Since apheresis and other similar forms of treatment are repeated by the same donor at monthly intervals, hemodialysis treatment should be repeated for each patient several times a week and each session can last up to three or four hours. Given the above, it will be clear how useful it can be for the patient to be able to use an entertainment device and / or information in an efficient manner. For this reason, reference will now be made to the specific use of the invention in relation to hemodialysis, but such reference should be considered purely exemplary and not limiting.

The entertainment and information devices used for a time in dialysis rooms are normal televisions, which are often arranged in an elevated position so as not to hinder staff and are intended for the collective vision of all patients present in the room. This type of solution clearly gives rise to a series of obvious problems. First, the collective vision does not allow each person to see the programs that best suit their tastes, needs or desires. In addition, television programs can only be viewed passively, that is, without the possibility of interaction by the patient.

A more sophisticated solution is the provision of an individual screen for each patient location. These screens are generally supported by more or less bulky mechanical arms that can normally be fixed to the ceiling or to a wall. This solution is shown, schematically, in Figure 1. From this figure, one can see how the patient can use the screen individually and how this can allow, if the screen allows, a greater interaction between the patient and the programs / information available. In fact, this type of solution can be adopted not only for conventional televisions, but also for "touch screens" or screens that in any case have controls built into them.

Despite a series of obvious advantages compared to collective television, this type of solution also has a number of important disadvantages. First, the support arm and the screen itself constitute both a physical and visual obstacle that, in addition to occupying the space around the patient, also runs the risk of partially hiding the patient from the view of the staff in the ward and even hinder any emergency maneuver. In fact, it should be noted here that the support arm must be strong enough to be able to hold the screen firmly in position, since the patient can only operate it with one hand and, therefore, cannot hold it in position.

Another drawback of this solution is purely ergonomic in nature. In fact, the screen is lowered from the top towards the patient and requires that the latter raise his free arm to be able to reach the various controls that will be operated. If this operation can be carried out without much effort in the case of a brief and occasional interaction, for example to change channels or adjust the volume, it is clear that this becomes problematic in the case of activities that require prolonged interaction over time. such as when a game is played or a text is written.

Another solution is the one shown, schematically, in Figure 2. According to this solution, an individual screen is mounted, by means of a special support, on the service car that is commonly used in dialysis rooms to meet the needs of the patient.

This type of solution partially solves the problem of the occupied space, since the staff can easily remove the car without major problems in case interaction with the patient is required. However, the problem of visual obstruction created by the screen, which can easily hide the patient from the view of staff in the room, remains unsolved. Also, the ergonomic problem remains unresolved, since in this case the screen is also located in an elevated position with respect to the patient and any control available only on the screen (and therefore not through a remote control) requires the same amount of effort as in the case already considered above.

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WO 03/013307 and US 6,269,753 disclose mobile supports for an entertainment and / or information device, similar to that set forth in the preamble of claim 1.

The objective of the present invention is therefore to provide a support capable of at least partially overcoming the above-mentioned drawbacks with reference to the prior art.

In particular, a task of the present invention is to provide a support for an entertainment device and / or information that allows a user to use the device with only one hand.

In addition, another task of the present invention is to provide a support for an entertainment device and / or information that is easy to use and comfortable from an ergonomic point of view, also for long periods of time.

Finally, an additional task of the present invention is to provide a support for an entertainment device and / or information that allows room staff to have an unobstructed view of the patient at all times and, if necessary, obtain easy access in case of emergency.

This objective and these tasks are achieved by a mobile support according to claim 1 and by a service car according to claim 14.

In order to better understand the invention and appreciate its advantages, a non-limiting example of its implementation is described below with reference to the accompanying drawings in which:

Figure 1 shows a perspective view of a first solution according to the prior art;

Figure 2 shows a side view of a second solution according to the prior art;

Figure 3 shows a global front view of a service carriage comprising a support according to the invention in a first operational configuration;

Figure 4 shows a front view of the upper part of the carriage according to Figure 3, where the support is in a resting configuration;

Figure 5 shows a view, similar to that of Figure 4, where the support is in a first transition configuration;

Figure 6 shows a view, similar to that of Figure 4, where the support is in a second transition configuration;

Figure 7 shows a view, similar to that of Figure 4, where the support is in a second operative configuration;

Figure 8 shows a side view of an operative situation of the support according to the invention in the first operative configuration;

Figure 9 shows a side view of an operative situation of the support according to the invention in the second operative configuration;

Figure 10 shows a side view of an operative situation of the support according to the invention in the third operative configuration;

Figure 11 shows a side view of the detail of the support according to the invention in the first operative configuration;

Figure 12 shows a side view of the detail of the support according to the invention in the third operative configuration;

Figure 13 shows a side view of the detail of the support according to the invention in the second operative configuration;

Figures 14.a and 14.b show, respectively, a schematic side view and a bottom view of the support according to the invention in the rest configuration;

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Figures 15.a and 15.b show, respectively, a view according to the invention in the first transition configuration;

Figures 16.a and 16.b show, respectively, a view according to the invention in the first operative configuration;

Figures 17.a and 17.b show, respectively, a view according to the invention in the third operative configuration;

Figures 18.a and 18.b show, respectively, a view according to the invention in the second transition configuration;

Figures 19.a and 19.b show, respectively, a view according to the invention in the second operative configuration.

In the attached figure 3, reference number 30 indicates, in general, a service car. The invention relates to a mobile support 40 for an entertainment and / or information device 50 designed to be mounted on the bottom side 310 of a substantially horizontal support surface 31. The service carriage 30 represents an example of this support surface 31.

The mobile support 40, according to the invention, comprises:

- a set of linear guides 41 designed to allow the device 50 to travel in a substantially horizontal plane n, at least from a rest configuration R to a first transition configuration T1;

- a hinge assembly 42 designed to allow the device 50 to rotate about a substantially horizontal rotation axis X at least from a first transition configuration T1 to a first operational configuration U1.

In the following description, reference will be made to the support surface 31 (for example included in the service car 30) and to the mobile support 40 that are correctly mounted and used in the correct manner as shown, for example, in Figures 8 to 10. In this regard, the term "forward," "forward," "forward" and the like refer to a position relatively close to the actual location of a potential user. On the other hand, the terms "back", "back", "back" and the like refer to a position relatively distant from the actual location of a potential user. As the person skilled in the art can easily understand, these definitions are conventional and a different convention (for example, opposite) could have been chosen without thereby avoiding the correct description of the invention.

For example, in Figures 8 to 10, the device 50 projects from the support surface 31 defined by the service carriage 30 forward (that is, towards the user). On the other hand, in Figure 9, the device 50 projects from the support surface 31 defined by the service carriage 30 backwards (ie, away from the user).

The entertainment and / or information device 50 may take different forms. The device 50 can be an electronic device such as a conventional flat screen TV, a game console, an electronic book reader, a so-called PC tablet or the like. According to other simpler embodiments, the device can also be a lectern suitable for supporting a book to be read and / or a notebook for writing. Preferably, the music stand is also designed to keep the pages of the book and / or notebook open and to hold a writing instrument, such as a pen or pencil.

In any case, whatever the type of entertainment and / or information device 50, it will have a substantially flat shape so that it can be arranged, mainly. in the plane n and easily staying under the support surface 31. In addition, an active surface 51 and a passive surface 52 can be easily defined in the device 50.

The active surface 51 is that surface by which the device 50 can provide entertainment and / or information to the user. Therefore, the active surface 51 normally comprises the screen, controls or lectern surface intended to support the book.

The passive surface 52 is opposite the active surface 51 and normally has no function. In some cases, the passive surface 52 may comprise power outlets and / or data connections or cooling slots or the like, but in general it will not comprise elements with which the user has to interact continuously. Furthermore, the passive surface 52 of the device 50 does not preferably comprise

schematic side view and a bottom view of the schematic side support and a bottom view of the schematic side support and a bottom view of the schematic side support and a bottom view of the schematic side support and a bottom view of the support

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no opening to prevent the liquid from infiltrating inside and damaging the device 50.

According to the embodiments shown in the attached figures (see, for example, Figures 4, 14.a and 14.b), in the resting configuration R, both the mobile support 40 and the device 50 are completely housed below the surface of support 31.

Furthermore, in these embodiments, both in the resting configuration R and in the first transition configuration T1 (see, for example, Figures 5, 15.a and 15.b), the device 50 is directed with the active surface 51 down and with the passive surface 52 facing up. In this way, the possibility of dirt being deposited on the active surface 51 is minimized.

According to the embodiments shown in the attached figures (see, for example, Figures 3, 8, 11, 16.a and 16.b), in the first operative configuration U1, the active surface 51 of the device 50 is directed upwards and towards in front, towards the user. As can be seen clearly in Figure 8, this position is particularly convenient from an ergonomic point of view for the user sitting in a chair. The comfort can be appreciated both during the simple visualization of the information and in the case of a prolonged interaction by the user, such as when playing a game or writing a text.

Furthermore, in the first operative configuration U1, the device 50 is also arranged so that its passive surface 52 rests on the front edge of the support surface 31. In this way, the device 50 assumes a stable position and can be manipulated by the user (as can be seen, for example, in figure 8) without moving or changing its orientation.

According to certain embodiments of the mobile support 40, the set of linear guides 41 is designed to allow the device 50 to move in the plane n, also from the standby configuration R to a second transition configuration T2. In these embodiments, it is also preferred that the hinge assembly 42 is properly designed to allow the device 50 to rotate around the X axis also from the second transition configuration T2 to a second operating configuration U2.

Linear guides can be of different types themselves. They can comprise, for example, sliding devices provided with rolling bearings by means of which they travel with minimal friction along the respective rails. Alternatively, the slides can also be made of material with a low coefficient of sliding friction and can simply slide along the respective rails. This second solution may be preferred due to the lower costs and low loads acting on the linear guides in this specific case.

According to these embodiments, in the second transition configuration T2 (see, for example, Figures 6, 18.a and 18.b), the device projects backwards from the support surface 31, with the active surface 51 facing down and with the passive surface 52 directed upwards.

In addition, in the second operating configuration U2 (see, for example, Figures 7, 9, 13, 19.a and 19.b), the active surface 51 of the device 50 is directed up and forward, towards the user. As can be clearly seen in Figure 9, this position is particularly convenient from an ergonomic point of view for a user sitting in a chair and using the support surface 31 for other activities, for example, for eating or drinking.

The rotation around the X axis that moves the device 50 from the second transition configuration T2 to the second operating configuration U2 is practically the same rotation that moves the same device 50 from the first transition configuration T1 to the first operating configuration U1 .

According to certain embodiments of the mobile device 40, the hinge assembly 40 is designed to allow the device 50 to rotate around the X axis also from the first transition configuration T1 to a third operational configuration U3.

In the third operating configuration U3 (see, for example, Figures 10, 12, 17.a and 17.b), the active surface 51 of the device 50 is directed downward and forward, towards the user. As can be clearly seen in Figure 10, this position is particularly convenient from an ergonomic point of view for a user lying in bed.

It should be noted that the position of the device 50 shown in Figure 10 may require raising the support surface 31 of the service car 30. This possibility is usually ensured, in cars of the known type, by the telescopic structure of the uprights 33.

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The rotation around the X axis that moves the device 50 from the first transition configuration T1 to the third operating configuration U3 is part of the rotation that moves the same device from the first transition configuration T1 to the first operating configuration U1.

To allow the device 50 to remain in the third operating configuration U3, the hinge assembly 42 may comprise means defining at least one stable equilibrium position, intermediate between the first transition configuration T1 and the first operating configuration U1. These means are said to be under pressure coupling means, but they can be, similarly, friction or magnetic means.

Since the third operational configuration U3 is not, ergonomically, suitable for prolonged interaction by the user, it will be used exclusively to display information and / or to read texts. Therefore, it is not necessary for the pressure coupling means of the hinge assembly 42 to exert a high torque to retain the device 50 in the third operating configuration U3. In fact, the pressure coupling means must not exceed the torques that originate from the forces of the user's manual action, but only those of the weight force of the device 50 itself.

Preferably, the pressure coupling means is the only brake that opposes the rotation of the device 50 around the X axis. In this way, the hinge assembly 42 preferably ensures ease of movement to allow easy operation with a Single hand by the user.

According to another aspect thereof, the invention comprises a so-called service car 30 comprising a mobile support 40 according to one of the embodiments described above. The service car 30 can also be said bed service tray or side table (occasional table) and is commonly used, for example, to serve dinner to patients who are sitting in a chair or lying in bed.

The service carriage 30, in a manner known per se, comprises a base 32, preferably provided with wheels, from which one or more uprights 33 supporting a surface 31 extend laterally. The surface 31 projects in a cantilever over the base 32. The structure, as a whole, is therefore formed in a C-shape and can not only be arranged next to the user in the manner of a normal table, but also the base 32 can be inserted under the chair or the bed, the surface 31 can be positioned on the legs of the user as shown in Figures 8 and 9.

The service car 30 of the known type is generally symmetrical and, therefore, can be arranged on the bed or chair equally well on the right side or on the left side. On the other hand, the service carriage 30 according to the invention has an orientation to the right or to the left, since the set of linear guides 41 of the mobile support 40 is formed to define different travel races forwards and backwards. The attached figures 3 to 13 show cars on the right, that is, cars that are intended to be arranged next to the user on their right side.

According to one embodiment, the auxiliary systems for the device 50 can also be provided on board the service car 30. If, for example, the device 50 must require an electrical power supply and is intended for prolonged use over time, The service carriage 30 may comprise an electrical power supply, for example, a battery or a low voltage system connected to the mains. In addition, the service carriage 30 may comprise, for example, one or more antennas for capturing signals emitted in the environment and for transmitting them to the device 50. According to one embodiment, one or more antennas may have a flat shape and be mounted or incorporated into the support surface 31, thereby overcoming space-related problems that could arise with other types of known antennas.

In the case where the device 50 and / or the service carriage 30 are connected to a network (either a power supply network or a data supply network) via cables, preferably the connectors of these cables should be able to guarantee the necessary safety in case of traction and electrical insulation in case liquid is present. These measures are widely known in the field of electrical equipment approved for use in clinics.

The attached figures 14 to 19 show the set of linear guides 41. According to the invention, the set of linear guides 41 comprises a first pair of guides 411 on which the device 50 is slidably mounted, preferably, through the hinge assembly 42. The first pair of guides 411 is in turn , slidably mounted on a second pair of guides 412. As can be seen from a comparison between Figure 14.b and Figure 15.b, the interaction between the first pair of guides 411 and the second pair of guides 412 allows the movement of the device from the standby configuration R (figure 14.b) to the first transition configuration T1 (figure 15.b). The need to mount the first guides 411 slidably on the second guides 412 arises, in a manner known per se, from the need to obtain a telescopic effect to be able to move the axis of rotation X beyond the edge of the support surface 31 .

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As can be seen in Figure 15.b, in the first transition configuration T1, the device 50 is located at its front end stop with respect to the first pair of guides 411, and the first pair of guides 411 is located at its front limit switch with respect to the second pair of guides 412. In this configuration, the distance between the X axis and the front end of the second pair of guides 412 is less than the extension of the device 50 in the direction of travel. This feature results in greater stabilization of the first operating configuration U1. In fact, the front end of the second pair of guides 412 is preferably mounted in the vicinity of the front edge of the support surface 31 so as not to project with respect thereto. For this reason, the rotation of the device 50 around the X axis in the first operative configuration U1 causes the device 50 to rest stably with its passive surface 52 at the front edge of the support surface 31. If the X axis were displaced further forward, the device 50 could slide over the edge of the support surface 31 and rotate downward in an undesirable manner.

As the person skilled in the art can easily understand from the above description, the first pair of linear guides 411 and the second pair of linear guides 412 are designed to ensure the displacement of the device 50 from the resting configuration R a the first transition configuration T1. The hinge assembly 42 then allows the rotation of the device 50 from the first transition configuration T1 to the first operating configuration U1 or the third operating configuration U3.

The need to provide the second operational configuration U2 (and, therefore, the second transition configuration T2) requires that the second pair of guides 412 be, in turn, slidably mounted on a third pair of guides 413. The third pair of guides 413 is preferably firmly fixed to the support surface 31, for example, attached to its lower side 310.

According to the embodiments shown in Figures 14 to 19, the second pair of guides 412 advantageously forms a type of drawer due to the provision of a crossbar 414. The crossbar 414, in addition to jointly joining the two guides of the second pair 412 of so that they move, substantially, together, it also defines an aesthetic and functional finish for the support surface 31. In fact, in a view from the rear, the crossbar 414 covers the set of linear guides 41 and, therefore, it gives the support surface 31 an appearance that is aesthetically more pleasant but, in particular, easier to clean.

The cross member 414 and the second pair of guides 412 are preferably held in the position shown in Figures 14 to 17 by releasable locking means. The releasable locking means can be, for example, magnets or other similar means, known, for example, from the technical scope of furniture drawers. Thus, all movements of the device 50 that involve only the displacement of the first pair of guides 411 with respect to the second set of guides 412 do not run the risk of unnecessarily displacing the same with respect to the third pair of guides 413.

The smoothness of sliding of the set of guides 41, as a whole, and of the first and second pair of guides 411 and 412, in particular, will preferably be such that it allows easy operation with only one hand by the user. This technical characteristic therefore allows the patient sufficient autonomy so that he does not have to ask for help from nurses or paramedics.

The presence of the releasable locking means creates, instead, an obstacle for the initial sliding of the second pair of guides 412 in the third pair of guides 413. This obstacle makes even more difficult a movement that is already difficult in itself. perform by the patient, since this movement occurs in the direction of the opposite side of the support surface 31.

However, it should be noted that the displacement of the device 50 from the idle configuration R to the second transition configuration T2 (and therefore to the second operational configuration U2) is an operation, usually associated with the need to be able to use the support surface 31 for other uses, for example, for eating and / or drinking. For this reason, therefore, the sliding of the second pair of guides 412 in the third pair of guides 413 usually occurs in the presence of an auxiliary person, for example the person responsible for bringing food and / or drinks to the patient. Therefore, it will be clear that the auxiliary person, unlike the patient by himself, will not have problems either to overcome the action of the releasable blocking means or to move the second pair of guides 42 back, away from the patient.

A particular advantage of the invention, which arises from the use of certain particular types of devices 50, consists in the advantage of being able to guarantee the so-called user connectivity, also in an environment, such as the dialysis room, where the use of telephones Mobile is not normally allowed. The absence of electromagnetic fields in the patient's environment avoids the problem known in the field as "micro shock." This problem can arise when a patient whose skin is pierced by a needle is surrounded by a variable electromagnetic field. In this case, the tip of the needle can release microcurrents that, in the absence of the insulating protection provided by the skin, can have extremely serious or even lethal consequences.

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The connectivity, as well as the possibility of working on a computer, reading and writing emails, word processing, etc., obviously represent opportunities of great interest for patients who, although they are of working age for several days week, they must spend several hours in a dialysis room.

In addition, the presence of a camcorder 510 in the device 50 results in an additional advantage of even greater importance. In fact, the camcorder 510 can be used for remote video surveillance of patients. In fact, in many cases the presence of medical personnel in the dialysis room is not required, since the presence of nurses or paramedics is considered sufficient. However, in the case of a possible emergency, such as a sudden or uncertain illness, the camcorder 510 already addressed to the patient can allow medical personnel to quickly carry out a first visual assessment of the situation from a remote location and accelerate, in this way, any request for intervention by other specialized personnel.

The device 50 may also allow the patient to access a network to communicate with other users. For example, it may allow the possibility of interaction with other patients who are present in the same room, but who are too far away to speak with them normally.

The device 50 may also allow the healthcare organization that manages the dialysis room to provide the patient with important information, for example regarding the behavior suggested for the type of disease that has been diagnosed.

Finally, as will be immediately apparent from Figures 8 and 9, the presence of the device 50 and the mobile support 40 according to the invention does not in the slightest way block the view that the room staff has of the patient. At the same time, when necessary, the removal of the device 50 can be carried out more or less immediately since it is mounted on the service car 30 which can be easily moved. The presence of any cable connecting the device 50 is not a problem since, as already mentioned above, they can be easily disconnected by pulling them.

Obviously, the application in a dialysis room by a patient who can use only one arm is a limited and very specific use of the invention. Another area of application that is less specific and less complex, but which can also benefit from the invention is, for example, the one involving service tables provided along a pool. In this case too, the user may sit in a chair or lie on a sunbed and may wish to quickly and easily access a device 50, possibly also while eating or drinking.

Taking into account the above description, it will be apparent to the person skilled in the art how the mobile support 40 according to the invention is capable of at least partially overcoming the drawbacks initially mentioned with reference to the prior art.

In particular, it will be clear how the mobile support 40 according to the invention allows the user to easily handle the entertainment and / or information device 50 using only one hand.

In addition, it will be clear how the mobile support 40 according to the invention allows the user to operate the device 50 easily and conveniently from an ergonomic point of view also for long periods of time.

Finally, it will be clear how the mobile support 40 according to the present invention allows room staff to have a free view of the patient at all times and, if necessary, obtain easy access in case of an emergency.

Obviously, a person skilled in the art, in order to satisfy any specific requirement that arises, can make additional modifications and variations to the mobile support 40 and the service carriage 30 according to the present invention, all of which are also included within the scope of protection of the invention, as defined in the following claims.

Claims (13)

5 10 fifteen twenty 25 30 35 40 Four. Five 1. Mobile support (40) for an entertainment and / or information device (50), the mobile support (40) being designed to be applied to the bottom side (310) of a substantially horizontal support surface (31), comprising the Mobile stand (40): - a set of linear guides (41) designed to allow the device (50) to move in a substantially horizontal plane n, at least from a rest configuration (R) to a first transition configuration (T1); - a set of hinges (42) designed to allow the device (50) to rotate about a substantially horizontal rotation axis (X) at least from a first transition configuration (T1) to a first operational configuration (U1); characterized in that the set of linear guides (41) comprises a first pair of guides (411) on which the device (50) can be slidably mounted, through the hinge assembly (42), and that the first pair of guides (411) is, in turn, slidably mounted on a second pair of guides (412) to obtain a telescopic effect. 2. Mobile support (40) according to claim 1, wherein the displacement from the resting configuration (R) 'to the first transition configuration (T1) takes place in a first forward direction and in which the assembly of Linear guides (41) is designed to allow the device (50) to move in the plane n also in a second direction backwards, from the standby configuration (R) to a second transition configuration (T2). 3. Mobile support (40) according to claim 2, wherein the hinge assembly (42) is designed to allow the device (50) to rotate around the X axis also from the second transition configuration (T2) to a second operational configuration (U2). 4. Mobile support (40) according to any one of the preceding claims, wherein the hinge assembly (42) is designed to allow the device (50) to rotate around the X axis also from the first transition configuration (T1) to a third operational configuration (U3) intermediate between the first transition configuration (T1) and the first operational configuration (U1). 5. Mobile support (40) according to the preceding claim, wherein the hinge assembly (42) comprises means defining at least one stable equilibrium condition corresponding to the third operating configuration (U3) to allow the device (50) remain in the third operational configuration (U3). 6. Mobile support (40) according to claim 1, wherein the second pair of guides (412) is, in turn, slidably mounted on a third pair of guides (413) to obtain a telescopic effect. 7. Assembly comprising a mobile support (40) according to any one of the preceding claims and an entertainment and / or information device (50). 8. Assembly according to the preceding claim, wherein the entertainment and / or information device (50) is selected from the group comprising a conventional flat screen television, a game console, an electronic book reader, a tablet PC or a lectern suitable for holding a book to be read and / or a notebook to write. 9. Assembly according to claim 7 or 8, wherein the entertainment and / or information device (50) comprises an active surface (51) through which the device (50) can provide the user with entertainment and / or information and a passive surface (52) opposite the active surface (51). 10. Support surface (31) comprising, mounted on its lower side (310), a mobile support (40) according to any one of claims 1 to 6. 11. Support surface (31) comprising, mounted on its lower side (310), an assembly (40) according to any one of claims 7 to 9. 12. Support surface (31) according to the preceding claim, wherein, in the first operative configuration (U1) of the mobile support (40), the device (50) is arranged so that its passive surface (52) rests on the front edge of the support surface (31). 13. Support surface (31) according to any one of claims 10 to 12, further comprising auxiliary systems for a device (50) chosen from a power battery, a low voltage system connected to the mains, or one or more antennas to capture the signals emitted in the environment and transmit them to the device (50). 5 14. Service carriage (30) comprising a support surface (31) according to any one of the claims 10 to 13.