Abstract:
An aircraft cockpit that includes an information display device with a screen having a display surface and a rear surface opposite the display surface, and a cable harness connected to the screen. The rear surface includes a mechanism for retaining the cable harness substantially wound against the rear surface. The information display device is mobile within the cockpit.

Description:
BACKGROUND 
     This invention relates to an aircraft cockpit equipped with an information display device as well as to an aircraft. 
     In general, this invention relates to the layout of an aircraft cockpit, and more precisely to the availability of necessary information during the various phases of use of the aircraft. 
     In an aircraft cockpit, several screens make it possible to display useful information. 
     In particular, two major types of displayed data are differentiated: on the one hand, avionic data necessary for the actual flying of the aircraft and on the other hand, data ancillary to the avionics, of the chart, documentation type, . . . , relating to the outside world without being directly connected with flying of the aircraft. 
     These data ancillary to the avionics are not necessary during all the flight phases of the aircraft, but are used only during certain specific phases, and for example in approach and landing phases of the aircraft, or even in ground phases during preparation for a flight or for maintenance operations on the aircraft. 
     This information generally is presented on an information display device comprising a screen having a display surface and a cable bundle connected to the screen. 
     Such a cable bundle makes it possible to supply the screen continuously without loss of information and is necessary at the time of fitting out an aircraft cockpit in order to ensure continuity of display of a large number of data. 
     Nonetheless, such a cable bundle is restricting with respect to the possibilities for positioning of the screen, and the latter generally occupies a fixed position in the cockpit, even though the information displayed is not referred to continuously by the pilots. 
     SUMMARY 
     This invention has the purpose of proposing a cockpit having an information display device improving the ergonomics in the presentation of useful information. 
     To this end, this invention relates, according to a first aspect, to a cockpit comprising an information display device including a screen having a display surface and a rear surface, opposite the said display surface, and a cable bundle connected to the screen. 
     According to the invention, the rear face comprises means for holding the cable bundle more or less wound against the rear surface, the information display device being movable between a position in which the cable bundle is held by the holding means more or less wound against the rear surface of the screen and a position in which the cable bundle is at least partially unwound. 
     In this way the cable bundle is protected and stored behind the screen, allowing this screen to occupy a position in which the cable bundle does not interfere with the environment. 
     The screen thus may occupy at least two positions according to the winding or non-winding of the cable bundle, in this way making it possible to change the location for presentation of the information available on this screen, according to the usefulness of this information. 
     The aircraft cockpit thus may be equipped with an information display device in which the cable bundle is protected and stored behind the screen, interfering neither with the pilot nor with a flight instrument in this position of the screen. 
     By virtue of the available cable-bundle length, this information display device may be moved about in the cockpit by a simple unwinding of the cable bundle accommodated behind the screen. 
     The holding means preferably are adapted for holding the cable bundle wound more or less at the periphery of the rear surface. 
     These holding means thus make it possible to hold a considerable cable-bundle length equal at least to the perimeter of the screen. 
     The winding direction of the cable bundle against the rear surface of the screen advantageously is reversible. 
     In this way identical screens may be used in different locations, only the winding direction of the cable bundle being changed to take into account different possibilities for positioning of the screen. 
     In practice, the information display device is movable between a main position in which the information display device is fastened to a side wall of the cockpit, the cable bundle being held by the holding means more or less wound against the rear surface of the screen, and a secondary position, in which the information display device is disposed at the instrument panel of the cockpit. 
     According to the use or nonuse by the pilot of the information displayed on the information display device, the latter may be placed ergonomically facing the pilot, or in its main position, fastened to a side wall of the cockpit, when the pilot uses primarily the flight controls and reads avionic data. 
     The winding of the cable bundle behind the rear surface of the screen makes it possible to achieve an information display device not interfering with the other elements of the cockpit when it is in its main position. 
     In practice, in the secondary position of the information display device, the screen is pivoted by 180° in relation to the position of the screen of the information display device in the main position, the cable bundle being at least partially unwound from the rear surface of the screen. 
     In this way, the changeover of the screen from one position to another is achieved by a simple pivoting thereof. 
     The cockpit of an aircraft advantageously comprises two identical information display devices, adapted respectively for occupying two main positions in which the information display devices are fastened respectively to the two opposite side walls of the cockpit, the winding direction of the cable bundle of one of the said information display devices being opposite to the winding direction of the cable bundle of the other information display device. 
     The cockpit of an aircraft thus may be equipped with identical information display devices irrespective of their lateral positions in the cockpit, by virtue of the reversibility of the winding direction of the cable bundle allowing pivoting of the screen to the left or to the right to come to occupy a secondary position at the instrument panel of the cockpit starting from its main position on a side wall of the cockpit. 
     According to a second aspect, this invention also relates to an aircraft comprising a cockpit such as described above. 
     This aircraft has characteristics and advantages similar to those described with reference to the cockpit. 
     Other features and advantages of the invention also will become apparent in the description below. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       On the attached drawings, provided by way of non-limitative examples: 
         FIG. 1  is a rear view of a screen of an information display device according to one embodiment of the invention; 
         FIG. 2  is a schematic view illustrating an aircraft cockpit in accordance with the invention, an information display device occupying a first position; and 
         FIG. 3  is a schematic view of an aircraft cockpit similar to  FIG. 1 , the information display device occupying a second position. 
     
    
    
     DETAILED DESCRIPTION 
     First of all, an information display device according to one embodiment of the invention is going to be described with reference to  FIG. 1 . 
     The information display device is adapted for fitting out an aircraft and may be used for the display of information relating to the outside world, made up of data ancillary to the avionics. 
     These data comprise in particular different types of charts, documentation, files for maintenance of the airplane, accessibility of airports, . . . 
     The distinctive feature of this type of information derives from the fact that it does not have to be displayed continuously facing the pilot, so as not to disturb him during flying of the aircraft, but has to be available during certain flight phases. 
     Information display device  10  illustrated on  FIG. 1  comprises a screen  11  of which a display surface  11   a  (not visible on  FIG. 1 ) makes it possible, in standard manner, to display information in the form of a table, chart, text . . . 
     A rear surface  11   b  opposite display surface  11   a  extends generally in a plane more or less parallel to display surface  11   a.  This screen  11  may be of the flat screen type, and preferably a touch screen. 
     Information display device  10  also comprises a cable bundle  12  connected to the screen at a connection terminal  13 . 
     This cable bundle  12  creates a wired link making it possible to transmit a large number of data to screen  11  in real time and constitutes a preferential means for supplying a screen in real time without loss or discontinuity of display or interaction in a cockpit of an aircraft. 
     This cable bundle thus has a first connection terminal  13  connected to screen  11  and a second connection terminal  14  intended to be connected at a fixed connection point of the environment. 
     The length of this cable  12  makes it possible to position screen  11  at a distance more or less remote from the fixed connection point. 
     As clearly illustrated on  FIG. 1 , according to the invention, rear surface  11   b  of screen  11  comprises means for holding cable bundle  12  more or less wound against this rear surface  11   b.    
     In this embodiment, and in a manner in no way limitative, rear surface  11   b  of screen  11  comprises a peripheral rim  15  here extending over the entire periphery of rear surface  11   b  of screen  11 . 
     In cooperation with this peripheral rim  15 , the holding means for cable bundle  12  here comprise fastening elements  16  disposed in the corners of rear surface  11   b.    
     In this embodiment where rear surface  11   b  of the screen is more or less rectangular, four fastening elements  16  are disposed respectively at the four corners of rear surface  11   b.    
     In this embodiment, each fastening element  16  is made up of a semi-circular rib defining in each corner, with peripheral rim  15 , a semi-annular accommodation for holding a portion of cable bundle  12  in place. 
     These fastening elements  16  preferably form elastic holding means adapted for holding, by gripping, cable bundle  12  between each fastening element  16  and peripheral rim  15 . 
     These elastic fastening elements  16  thus constitute clamps making it possible to hold cable bundle  12  detachably, by gripping. 
     As clearly illustrated on  FIG. 1 , the holding means made up of peripheral rim  15  and fastening elements  16  make it possible to hold cable bundle  12  wound at the periphery of rear surface  11   b  of screen  11 . 
     In the example illustrated on  FIG. 1 , the winding direction of the cable bundle is schematized by arrow s and corresponds to the counter-clockwise direction. 
     The winding direction of cable bundle  12  is reversible, however, as schematized in a dotted line by the truncated cable portion  12 ′ starting from first connection terminal  13 . 
     The winding direction of cable bundle  12 ′ schematized by arrows thus may correspond to the clockwise direction. 
     By way of non-limitative example, the screen may be a screen with an outside dimension on the order of 300 mm by 250 mm. 
     The length of cable  12  may be more or less equal to 1 m so that in wound position of cable bundle  12  against rear surface  11   b  of the screen, almost all of cable bundle  12  is retracted behind screen  11 , only second connection terminal  14  extending beyond the screen. 
     Of course, other holding means for cable bundle  12  might be used. 
     In particular, rear surface  11   b  of the screen might comprise at its periphery a continuous channel in which the cable bundle may be forcibly accommodated. 
     As clearly illustrated on  FIG. 2 , a cockpit of an aircraft may be equipped with information display device  10  described above with reference to  FIG. 1 . 
     A cockpit usually comprises an instrument panel  20  disposed at the front of the cockpit and side walls (only one of walls  21  being illustrated on  FIG. 2 ). 
     These side walls extend on both sides of instrument panel  20 . 
     Information display device  10  is illustrated on  FIG. 2  in a position referred to as main position in which information display device  10  is fastened to a side wall  21  of the cockpit, and here to the left side wall of the cockpit. 
     In this position, cable bundle  12  is held by the holding means more or less wound against the rear surface of the screen, only second connection terminal  14  extending beyond screen  11  to be fastened at a fixed connection point  23  provided for this purpose in side wall  21  of the cockpit. 
     In this main position, information display device  10  does not interfere directly with the field of vision of the pilot, so that the information presented on this screen and which is not of prime importance for flying the aircraft may be consulted by the pilot at his convenience nonetheless without hindering the presentation of information necessary for flying the aircraft and which is presented on other standard display devices of instrument panel  20  situated facing the pilot. 
     As clearly illustrated on  FIG. 3 , this information display device  10  is movable between the main position described with reference to  FIG. 2  and a secondary position illustrated on  FIG. 3 , in which information display device  10  is disposed at instrument panel  20  of the cockpit. 
     In this secondary position of information display device  10 , cable bundle  12  is at least partially unwound from rear surface  11   b  of screen  11  while remaining connected via its second connection terminal  14  to fixed connection point  23 . 
     The length of cable bundle  12  is sufficient to allow the movement of screen  11  between the main position on side wall  21  and the secondary position at instrument panel  20 . 
     In this secondary position, and in non-limitative manner, information display device  10  is installed on a retractable shelf  24  in the cockpit. 
     In this secondary position, screen  11  is placed facing the pilot to enable him to view ergonomically the information presented on this information display device  10  during certain flight phases of the aircraft. 
     Taking into account the winding of cable bundle  12  in the main position, screen  11  is pivoted by 180° between this main position and the secondary position, and vice versa. 
     In the embodiment described with reference to  FIGS. 2 and 3 , the cable bundle is wound behind screen  11  of information display device  10  in the counter-clockwise direction and the pivoting of screen  11  between the position illustrated on  FIG. 2  and the position illustrated on  FIG. 3  is accomplished by a pivoting of the screen in the clockwise direction. 
     This movement makes it possible to achieve unwinding of cable bundle  12  automatically when screen  11  is moved from its main position to its secondary position. 
     Information display device  10  preferably is equipped with means for reversing by 180° the image presented on display surface  11   a  of the screen in order to ensure the legibility of the information after having pivoted a screen  11  by a half-turn between its main position and its secondary position. 
     For this purpose, the information display device may comprise a manual actuation means for reversing the display by 180°, at the request of the pilot, or even a movement sensor adapted for automatically reversing the direction of the display according to the position of screen  11 . 
     It will be noted that in a single movement it is possible to pivot the screen and unwind the cable bundle  12  between the main position and the secondary position, thus allowing the pilot an almost instantaneous access to the information presented on this screen when he has need thereof. 
     In this way, no movable mechanism or part is necessary since by simple detachment then pivoting of screen  11 , cable bundle  12  unwinds and makes it possible to position the screen in the secondary use position. 
     Information display device  10  is fastened on side wall  21  of the cockpit by any appropriate mechanical means, with manual locking and unlocking, allowing an intuitive, reliable and rapid manipulation by the pilot. 
     It furthermore will be noted that, because of the reversible winding direction of cable bundle  12 , either one or the other of the two opposite side walls of the cockpit may be equipped with such a screen, so long as the winding direction of the cable bundle is reversed. 
     Thus, in practice, the cockpit may comprise two identical information display devices  10 ,  10 ′ intended to occupy two main positions on each opposite side wall of the cockpit, the winding direction of cable bundle  12 ,  12 ′ of each device  10 ,  10 ′ being opposite to one another. 
     In this way information display device  10  may be placed on the left side wall and information display device  10 ′ may be placed on the right side wall. 
     Information display device  10  may be brought to the instrument panel on the left side of the cockpit and information display device  10 ′ may be brought to the instrument panel on the right side of the cockpit, for example respectively facing two pilot seats of the aircraft. 
     Outfitting the cockpit with reversible screens makes it possible to reduce the outfitting costs. 
     Because of the large number of data transmitted to the screen by cable bundle  12  (video, touch interface management data, . . . ), the radius of curvature of cable bundle  12  is relatively significant, and for example ranges between 10 and 15 cm. 
     Under these conditions, it is difficult to provide a winder for such a cable bundle, in particular in a confined space like an aircraft cockpit. 
     This invention, by providing means for holding the cable bundle wound at the back of the screen, thus makes it possible to retract and protect the cable bundle and to prevent it from interfering unnecessarily with the environment. 
     Of course, this invention is not limited to the exemplary embodiments described above.