Abstract:
A modular cabin segment for a vehicle includes a first lateral segment module that accommodates a first toilet arrangement with at least one toilet compartment and a second lateral segment module, wherein in each case an outer lateral face of the first segment module and of the second lateral segment module is designed to adapt in each case to an inner wall of a cabin of the vehicle so as to correspond to the aforesaid. At least one of the modules includes at least one cabin attendant seat that on one side is held on the at least one module so that it can be pivoted on an axis. In this manner very good integration of many different functions in the manner of a construction kit is achieved in order to be able to accommodate a greater number of passenger seats elsewhere within the limited space provided in a cabin.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    The present application is a continuation of International Application No. PCT/EP2012/052785, filed Feb. 17, 2012, which claims the benefit of the filing date of German Patent Application No. 10 2011 011 704.0 filed Feb. 18, 2011 and of U.S. Provisional Patent Application No. 61/444,452 filed Feb. 18, 2011, the disclosures of which applications are hereby incorporated herein by reference. 
     
    
     TECHNICAL FIELD 
       [0002]    The invention relates to a modular cabin segment for a vehicle, to a cabin for a vehicle comprising at least one such modular cabin segment, and to a vehicle with such a cabin. 
       BACKGROUND OF THE INVENTION 
       [0003]    Vehicles for transporting passengers, which vehicles have a cabin with passenger seats arranged therein, usually need to meet economic expectations so that, in the design of passenger cabins with limited space provided, the largest-possible number of passengers can be transported. In particular if the vehicle is used to travel longer distances, apart from the passenger seats, further equipment features are required in order to ensure passenger wellbeing. Apart from toilets this also relates to equipment for heating, cooling, the preparation and storage of food and drinks. 
         [0004]    Parallel to this, in particular in the case of commercial aircraft or other technically complex vehicles, there is also the desire of many operators to design a cabin according to their own wishes. Usually, in the case of aircraft this requirement is met by a number of galley monuments or toilet monuments standardized by the manufacturer of the aircraft. These monuments often separate individual cabin sections from each other in longitudinal direction of the cabin and are often provided so as to be separate from each other. 
         [0005]    Furthermore, in particular in commercial aircraft it is a regulatory requirement to provide a cabin attendant seat for each cabin attendant so that each cabin attendant can take up a safe position during takeoff and landing of the aircraft, which cabin attendant seat additionally occupies already confined space in the cabin. 
         [0006]    DE 43 00 877 A1 and U.S. Pat. No. 5,474,260 A disclose an aircraft with a number of supply devices and toilets that are designed as independent conventional toilet compartments. 
       BRIEF SUMMARY OF THE INVENTION 
       [0007]    An aspect of the invention proposes an advantageous design of a cabin or of a cabin segment, which design allows the best possible use of the available installation space in the cabin while meeting all the regulations and the requirements for comfort. 
         [0008]    An aspect of the invention consists of proposing a cabin segment that comprises a modular design. In this context the term “modular” means that various modules tailored to different requirements can be selected and composed in order to be able to provide a cabin segment that is particularly advantageous to the respective operator. The term “module” refers to a part, a component or a section of a finished cabin segment. 
         [0009]    Due to the modularity each operator of the vehicle can compose a cabin segment without the need to resort to a cost-intensive individual solution. At the same time this is economically sensible for the manufacturer of the vehicle, because many different variants of a cabin segment can be proposed without the need to conceive protracted and cost-intensive individual solutions. 
         [0010]    A particularly preferred variant of a modular cabin segment according to an embodiment of the invention is proposed for a region in the cabin, in which region a passage is not required. This could, for example, relate to a rear section of an aircraft or to a front section if a separate entry to the cockpit is to be provided. In other vehicles, for example in ferries, trains or the like, a modular cabin segment according to an embodiment of the invention could also be arranged in a rear part of the vehicle in question. The use of a rear section makes sense in particular in commercial aircraft, because in a commercial aircraft a pressure bulkhead is arranged to delimit the cabin, which pressure bulkhead comprises an outward-curvature that could be used by toilet arrangements. 
         [0011]    Below, some references relate to a longitudinal axis, a transverse axis and/or a vertical axis. The term “longitudinal axis” refers to the spatial direction that correlates with a longitudinal axis of the vehicle or with a parallel to the aforesaid, wherein this longitudinal axis can also be the longitudinal axis of a cabin in which the cabin segment according to an embodiment of the invention is arranged. Consequently, the term “transverse axis” relates to an axis that is arranged so as to be perpendicular to the longitudinal axis and that is situated in the horizontal. Accordingly, the term “vertical axis” refers to the axis that extends in vertical direction and that is situated so as to be perpendicular both on the longitudinal axis and on the transverse axis. 
         [0012]    A modular cabin segment according to an embodiment of the invention comprises a first lateral segment module that accommodates a first toilet arrangement with at least one toilet compartment. The cabin segment according to an embodiment of the invention further comprises a second lateral segment module, wherein in each case a lateral face of the first and of the second lateral segment module is designed to snugly fit in each case to an inner wall of the cabin of the vehicle so as to correspond to the aforesaid. According to an embodiment of the invention, at least one of the modules may comprise a cabin attendant seat which on one side can be pivoted on a vertical axis on the at least one module. 
         [0013]    The cabin segment according to an embodiment of the invention thus extends in a transverse axis preferably from a sidewall of a cabin that is to be equipped with the cabin segment according to an embodiment of the invention up to the opposite sidewall, wherein this space comprises at least one first lateral segment module and a second lateral segment module. Such a cabin segment can be designed in a particularly advantageous manner by the integration of various functions so that the space taken up by the cabin segment according to an embodiment of the invention is utilized as optimally as possible. 
         [0014]    A special feature on one hand consists of the possibility of positioning, apart from a first toilet arrangement, also completely different arrangements in the cabin segment according to an embodiment of the invention. The function of the first lateral segment module is not limited to the use of a toilet arrangement. Instead, the particular operator of the vehicle that comprises a cabin with at least one cabin segment according to an embodiment of the invention can compose a cabin segment from various modules. However, all the cabin segments share a common feature in that a cabin attendant seat is pivotally arranged on one of the modules, wherein a special feature consists of pivoting on an axis, and preferably on a vertical axis, wherein the bearing arrangement that can be pivoted is implemented laterally. In known cabin attendant seats that can be pivoted it is often necessary to pivot or rotate a kind of platform or base plate which, due to the geometric extension needed for this, severely restricts the possibilities of the surrounding installation space. 
         [0015]    The bearing arrangement that can be laterally pivoted makes it possible to pivot a cabin attendant seat, for example from an in-use position to a stowed position so that the design space usually taken up by the cabin attendant seat is useable for other purposes almost without restriction. 
         [0016]    In an advantageous embodiment of the invention, the cabin attendant seat is held on the at least one module in such a manner that it can be pivoted either in front of a toilet arrangement or in front of at least one storage compartment. Pivoting it in front of at least one storage compartment simplifies, in particular, pivoting the cabin attendant seat to a stowed position and to an in-use position, as well as locking it in those positions. In the case of pivoting in front of access openings of toilet arrangements the locking mechanism would have to be implemented either directly on the bearing arrangement that can be pivoted or in the floor region, or wall thicknesses of a housing of the toilet arrangement would have to be reinforced in order to accommodate locking means. If the cabin attendant seat is, for example, held on a galley module with storage compartments, because of the use for accommodating cabin trolleys and for storing food, compartments are provided in that location, which compartments can withstand greater mechanical loads than is the case with pure space dividing walls, which compartments can relatively easily accommodate the hinge of the cabin attendant seat and its load. In order to allow for future modification of a cabin segment according to an embodiment of the invention to allow an attendant seat to be retrofitted a relevant walling of the housing of the toilet arrangement or another walling of one of the lateral segment modules would have to be reinforced. 
         [0017]    In an advantageous embodiment of the invention the cabin segment furthermore comprises at least one central module that is arranged between the first lateral segment module and the second lateral segment module. 
         [0018]    In a particularly advantageous embodiment the second lateral segment module is a galley module. In the simplest case a galley module can comprise storage compartments for accommodating food, cutlery, napkins, auxiliary utensils and the like. In particular when used in an aircraft such storage compartments comprise flaps with a locking mechanism so that the objects are secured against falling out. Likewise, a galley module can comprise one or several parking spaces for cabin trolleys used to store food, transport them to the passengers in the cabin, and subsequently take up waste and the like. If required, the parking space can also comprise a cooling device, or can be connected to a central cooling device, located further away within the vehicle, in order to cool food and drinks in the corresponding cabin trolley. 
         [0019]    In the modular cabin segment according to an embodiment of the invention a parking space can be arranged whose dimensions make it possible to accommodate a wheelchair in its folded state. Particularly preferably, for this purpose a parking space for a cabin trolley is modified in such a manner that it provides the necessary width and height to accommodate the wheelchair and thus can be reconfigured from a parking space for a cabin trolley to a parking space for a folded wheelchair, when desired. Normally, these dimensions exceed the space required for the cabin trolley. If required, or if there is a corresponding operating regulation to carry the wheelchair of a person with limited mobility in the passenger cabin during the flight or during the journey, the cabin segment according to an embodiment of the invention thus allows non-blocking and practical accommodation of the wheelchair. 
         [0020]    In an advantageous embodiment any desired module of the cabin segment according to an embodiment of the invention could comprise a parking space for a cabin trolley which in a delimitation surface comprises a rail or some other guide means that make it possible to readily insert the cabin trolley and lock it into place, and at the same time however also makes it possible to accommodate a wheelchair in its folded state in the parking space. Furthermore, the parking space for the cabin trolley in this case could comprise a cover flap, or at least a partial flap, that prevents the wheelchair from sliding out. 
         [0021]    In an advantageous embodiment of the invention the at least one central module or the first lateral segment module comprises a second toilet arrangement with at least one toilet compartment. If the requirement in the particular vehicle tends to be for minimizing the design space occupied by galleys or storage compartments, it would be possible in this manner to be able to provide increased capacity for toilets in order to elsewhere in the cabin be able to do away with an independent toilet monument, and in this way accommodate additional passenger seats in this region that is becoming available. In this manner the economic efficiency of the vehicle can be further improved without having to do without necessary installations. 
         [0022]    In a particularly advantageous variant the second toilet arrangement is arranged at a position facing the first toilet arrangement of the first lateral segment module. Not only does this make it possible to implement shared suction-removal of odors from these adjacent toilet arrangements, but it can also simplify the routing of suction lines and flushing lines, because the corresponding consumers in the form of the toilet arrangements are adjacent. 
         [0023]    In an advantageous embodiment of the invention the second toilet arrangement extends over the entire width of the at least one central module. This means that the region between the first lateral segment module and the second lateral segment module could be taken up completely by a toilet arrangement comprising at least one toilet, a urinal or the like, if a single central module is provided. In this manner a number of toilets can be provided in a cabin segment according to the invention, provided the design space within the cabin is sufficient for this, and consequently it is possible to do without a toilet monument in some other region of a passenger cabin, and instead of said toilet monument further passenger seats could be provided. 
         [0024]    In an advantageous embodiment of the invention, the at least one central module comprises a parking space for at least one “half-size” cabin trolley as well as at least one storage compartment, wherein the cabin attendant seat is held on the at least one central module in such a manner that it can be pivoted in front of an access opening of the second toilet arrangement or in front of the storage compartment. Since the cabin attendant seat is a component that anyway is used relatively rarely and at other times merely “wastes” design space, it is very advantageous to pivot the cabin attendant seat in front of an access opening of the second toilet arrangement only in those phases where the use of the toilets is not desired anyway. In the case of aircraft, these phases are, in particular, the takeoff and landing phases. During the operation phases of the vehicle, in which phases the cabin attendant seat is not required, said cabin attendant seat can be pivoted on the central module, for example parallel to a direction of access to the second toilet arrangement, and consequently unhindered entry to the second toilet arrangement is possible, and the design space around this access opening is not blocked. 
         [0025]    Furthermore, it is not mandatory for the individual modules of the cabin segment according to an embodiment of the invention to be divided evenly in transverse direction; they can also, grouped according to the purpose of use, comprise projections, steps and indentations in transverse direction, which nonetheless make possible a composition to form an entire cabin segment. This means that, for example, at least part of an above-mentioned central module, which supports various functions, and a lateral segment module can be interconnected in the form of an enlarged lateral segment module. In this manner, for example, toilet compartments of a central module could be combined with toilet compartments of a lateral segment module. Furthermore, galley functions or storage compartments and parking spaces of a central module could be combined with similarly equipped lateral segment modules. In this manner one or two enlarged lateral segment modules could arise that can be combined to form one cabin segment. Separation of functions can simplify manufacture of the individual lateral segment modules. 
         [0026]    In an advantageous embodiment the second toilet arrangement comprises a toilet compartment with a urinal, wherein the toilet compartment and the at least one storage compartment of the central module are arranged side by side in transverse direction. Such stringing together of functions within a single cabin segment module makes possible very space-saving integration of various functions, because the urinal requires only very little space when compared to a conventional toilet, so that the unoccupied design space could be taken up by a storage compartment arrangement. 
         [0027]    In an advantageous embodiment of the invention, a partition wall is arranged between a first toilet compartment and an adjacent second toilet compartment, irrespective of the association with a lateral or central segment module. The partition wall may be fixedly arranged. It is preferred that the partition wall allows its later removal in order to replace the fixed partition wall with a movable partition wall. Thereby a modularity regarding the convertibility of two separated toilet compartments to a larger, single toilet compartment is created. 
         [0028]    In an advantageous embodiment the partition wall is movably held and is designed to be brought to an opening position in which separation between the first toilet compartment and the second toilet compartment is canceled. In this manner it is possible without further ado to create a toilet for the disabled, into which toilet a person in a wheelchair can drive and have enough space for accommodating the wheelchair. 
         [0029]    In an advantageous embodiment of the invention, the partition wall is constructed from individual partition wall segments that are movably held. In this manner by means of easy pivoting or folding-over of partition wall segments an individual, larger toilet compartment can be created. 
         [0030]    In an advantageous embodiment of the invention, a first partition wall segment is designed to be hinged to a first sidewall of the first toilet compartment, while the second partition wall segment is designed to be pivoted into a region that is not situated in the first toilet compartment or in the second toilet compartment. After moving into a thus formed joint, larger, toilet compartment, the second partition wall segment can be pivoted back to the joint toilet compartment, for example in order to be used as a door or a cover flap. 
         [0031]    In an advantageous embodiment of the invention, a direction of extension of the first toilet compartment and a direction of extension of the second toilet compartment are arranged so as to be essentially perpendicular to each other. This means that the first toilet compartment and the second toilet compartment together form an L-shape that is advantageous in particular for dividing the partition wall into two partition wall segments. 
         [0032]    An embodiment of the invention includes a cabin for a vehicle, which cabin comprises at least one cabin segment according to the invention, as explained above. 
         [0033]    Furthermore, another embodiment includes a vehicle that comprises a cabin with at least one cabin segment described herein. In particular, this vehicle can be an aircraft, thus providing significant advantages when compared to known aircraft from the state of the art. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0034]      FIGS. 1   a  to  1   f  show diagrammatic views of segment modules of a cabin segment according to the invention in the form of a modular system. 
           [0035]      FIG. 2  shows a three-dimensional view of a first exemplary embodiment of the cabin segment according to the invention. 
           [0036]      FIG. 3  shows a three-dimensional view of a further exemplary embodiment of the cabin segment according to the invention. 
           [0037]      FIG. 4  shows a three-dimensional view of a further exemplary embodiment of the cabin segment according to the invention. 
           [0038]      FIG. 5  shows an arrangement comprising a cabin segment according to the invention in a cabin of a vehicle. 
           [0039]      FIG. 6  shows the exemplary embodiment of  FIG. 2  with an alternative module segmentation. 
           [0040]      FIG. 7  shows the exemplary embodiment of  FIG. 3  with an alternative module segmentation. 
           [0041]      FIG. 8  shows the exemplary embodiment of  FIG. 4  with an alternative module segmentation. 
           [0042]      FIGS. 9   a - f  show a convertible toilet arrangement in the cabin segment according to the invention. 
           [0043]      FIG. 10  shows an aircraft with a cabin and a cabin segment according to the invention, which cabin segment is arranged therein. 
       
    
    
     DETAILED DESCRIPTION 
       [0044]      FIG. 1   a  shows a lateral segment module  2  which in the preceding description was referred to as the second lateral segment module. It comprises an outer lateral face  4  and an inner lateral face  6  that delimit the second lateral segment module  2  in transverse direction or in horizontal direction. In this arrangement the outer lateral face  4  is shaped in such a manner that it can snugly fit to an inner wall of a cabin, and thus is designed so as to correspond to the aforesaid. In the example shown, the outer lateral face  4  is round, thus corresponding to one or several graduated circles of the fuselage of the corresponding vehicle. The inner lateral face  6  is planar and extends in vertical direction so that other modules can join while adapting to the inner lateral face  6 . 
         [0045]    The second lateral segment module comprises a first parking space  8  and a second parking space  10  that are arranged in a lower half of the second segment module and that follow on from a base  12  that is positionable on a cabin floor. A parking space  8  arranged on the inner lateral face  6  is suitable for accommodating a cabin trolley  14 , wherein preferably also locking means (not shown in detail) can be arranged that prevent inadvertent releasing of the cabin trolley  14  from its parking space  8 . Preferably, the parking space  8  also comprises means for cooling or means for guiding a cold substance from a central device for proving a cooled coolant to the cabin trolley  14  so that food contained therein can be cooled during operation of the vehicle. 
         [0046]    The parking space  10  facing the outer lateral face  4  is also equipped to accommodate a cabin trolley  14 , and preferably also to lock it. A further design characteristic of this outer parking space  10  could consist of providing adequate width to accommodate a wheelchair  16  in order to meet any operating regulations of providing in a vehicle, and in particular in an aircraft, the possibility of accommodating a wheelchair. 
         [0047]    Since the second lateral segment module  2  adapts to an outer wall of a vehicle fuselage, and consequently the outer lateral face  4  is heavily curved, in the space between the outer parking space  10  and the outer lateral face  4  there is only relatively little design space, which in the present example is used by two storage compartments  18  and  20 . The upper of these two storage compartments  20  can, for example, accommodate various objects such as trays or elongated packages comprising food or auxiliary resources required on board the vehicle, for example a wheelchair (“onboard wheelchair”). 
         [0048]    By means of a horizontal intermediate floor  22  that extends in transverse direction, which horizontal intermediate floor  22  can be designed as a work surface, further storage compartments  24  of various sizes are partitioned off from the parking spaces  8  and  10  and can, in particular, be used for accommodating food that does not need to be cooled. 
         [0049]    As an alternative to this, the compartments  24  arranged above the horizontal intermediate floor  22  or the work surface can be designed to accommodate various items of technical equipment which are, for example, used to heat food and drinks. 
         [0050]    In  FIG. 1   b  as an example a first central module  26  is presented that comprises a first lateral face  28  and a second lateral face  30 , which faces delimit the central module  26  in transverse direction. As an example, this central module  26  is designed, in particular, as a toilet module so that an access opening  32  to a toilet compartment  34  is arranged which can be closed by means of a door  36 . The toilet compartment  34  itself is of an L-shaped design, wherein a toilet  38  extends in transverse direction so that it is possible to use the remaining design space starting from a rectangular base  40  through a parking space  42  and compartments  44  arranged above. 
         [0051]    To avoid excessively limiting the comfort within the toilet compartment  34 , the extension, in longitudinal direction, of the parking space  42  and of the compartments  44  is relatively short so that for example in an application in an aircraft only those cabin trolleys  14  can be inserted that comprise half the normal depth. Such cabin trolleys are referred to as half-size trolleys. 
         [0052]    This illustration of the central module  26  shows that a cabin attendant seat  46  is provided that is pivotally held on the central module  26 . This cabin attendant seat  46  is discussed in detail later. 
         [0053]      FIG. 1   c  shows a further exemplary central module  48  based on the same base  40 , except instead of an L-shaped toilet compartment  34  it comprises an essentially rectangular toilet compartment  50  extending in longitudinal direction, which toilet compartment  50 , however, comprises a urinal  52  instead of a toilet  38 . Said urinal  52  can be used with the person standing upright, and consequently significantly less space is required. 
         [0054]    The design space that can be saved in comparison to the central module  26  of  FIG. 1   b  can be utilized by additional depth of the parking space  54  or of the compartments  56  arranged above it. This makes it possible to park more than only one “half-size” cabin trolley  14 ; for example a normal cabin trolley and a “half-size” cabin trolley could be arranged one behind the other in longitudinal direction, or alternatively three “half-size” cabin trolleys  14 . The same applies to the storage compartments  56 , which comprise three times the stowage volume of the central module  26  from  FIG. 1   b.    
         [0055]    In particular when designing the cabin of a vehicle, the available toilet arrangements must be assessed because not every passenger requires a complete toilet compartment  34 ; instead, by providing a urinal  52  with a significantly reduced toilet compartment  50 , adequate sanitary installations could be created that would result in significant savings of installation space. 
         [0056]    If it is not necessary to equip the cabin segment according to an embodiment of the invention with an excessive number of toilet arrangements, a central module  58 , as shown in  FIG. 1   f , could be used. 
         [0057]    The central module  58  comprises a total of three parking spaces  60 ,  62  and  64  in which cabin trolleys  14  can be parked. In this arrangement a parking space  64  extends further outwards in longitudinal direction than is the case with the two other parking spaces  60  and  62 , and consequently a cabin attendant seat  46  can be pivotally arranged on the resulting projecting wall. This design furthermore makes it possible to park two conventional cabin trolleys  14  in the parking spaces  60  and  62 , as well as a conventional cabin trolley  14  and a “half-size” cabin trolley  14  in the parking space  64 , or alternatively three half-size cabin trolleys if desired. 
         [0058]    An intermediate floor  66  extends horizontally on the parking spaces  60 ,  62  and  64 , where storage compartments  68  are arranged. 
         [0059]    In the illustrated exemplary embodiment of the central module  58  the cabin attendant seat comprises a removable headrest part  70  that in a stowed position of the cabin attendant seat  46  can be removed or folded away in order to allow unrestricted access to the storage compartments  68 . When the cabin attendant seat  46  is required, it can be pivoted in front of the parking spaces  60  and  62  and can be equipped again with the removable headrest part  70 . While as a consequence of this the parking spaces  60  and  62  or the parking space  64  are blocked, this would, however, occur only at those times when no cabin trolley  14  is moved about, for example during takeoff and landing. 
         [0060]    Furthermore, in the central module  58  shown, for the purpose of heating food an oven  67  is arranged which can be operated by way of a pivotally held flap that is useable as a work surface. When the cabin attendant seat  46  is pivoted into the free aisle in front of the module, it may be possible to do without taking off the headrest. 
         [0061]      FIG. 1   e  shows a first lateral segment module  72  that comprises an outer lateral face  74  that is designed so as to correspond to the inner wall of the cabin in the provided installation location. In this variant the lateral segment module  72  comprises a toilet compartment  76  in which a toilet  78  is arranged that extends in longitudinal direction. In this manner with sufficient depth of the segment module  72  a conventional toilet function can be ensured. The inner lateral face  80  is of a planar design and extends vertically so that central modules  26 ,  48  or  58  can follow on from it. 
         [0062]    Finally,  FIG. 1   d  shows a cabin attendant seat  46  with a headrest part  70  that could be designed so as to be removable if this appears to be necessary in a provided stowage position. 
         [0063]    On one side  82  the cabin attendant seat  46  comprises a hinge  84  that need not necessarily extend over the entire height of the cabin attendant seat  46 . Said hinge  84  could also be positioned only in some locations over the height of the cabin attendant seat  46  in a manner similar to door fittings. 
         [0064]    Furthermore, it should be added that the cabin attendant seat  46  is only shown diagrammatically; usually it comprises a fold-down seat surface and suitable seat belt and fastening means so that a cabin attendant can safely sit on said cabin attendant seat  46  and fasten the seat belt. Moreover, it should be mentioned that the pivotally held cabin attendant seat  46  must, of course, also comprise suitable locking means by means of which it can be held safely both in its stowed position and in its in-use position. 
         [0065]      FIG. 2  shows a first exemplary embodiment of a modular cabin segment  86  according to an embodiment of the invention that is shown as an example of the installation in a cabin of an aircraft. In this example the cabin segment  86  according to an embodiment of the invention is located in a rear section of the aircraft cabin, in which a pressure bulkhead  88  is also arranged that normally at least in some sections corresponds to a spherical segment. This design space can normally not be fully used, but by arranging the cabin segment  86  according to an embodiment of the invention in this region, for example in a toilet arrangement, it is possible to provide more space for users than is the case in conventional toilet monuments. 
         [0066]    The exemplary embodiment shown is a combination of a second lateral cabin segment  2 , a central module  26  and a first lateral segment module  72 . Accordingly, in the variant shown, the cabin segment  86  according to an embodiment of the invention comprises parking spaces for a total of 2½ cabin trolleys, a row of storage compartments  24  and  44 , as well as two complete toilet compartments  34  and  76 . 
         [0067]    As shown in the three-dimensional view of the cabin segment  86  according to an embodiment of the invention, the parking space  42  of the central module  26  extends further into a cabin of the aircraft than does the toilet compartment  34  so that the resulting projecting wall  90 , which extends parallel to the longitudinal direction, is suitable for accommodating a cabin attendant seat  46 . In this arrangement the access opening  32  is somewhat narrower than the distance between the wall  90  and the inner lateral face  80  of the first lateral segment module so that the hinge of the cabin attendant seat  46  can be arranged on the resulting projection  92 , and at the same time the access opening  32  is not blocked. To use the cabin attendant seat  46  it can be pivoted to the entrance opening  32  so that the entrance opening  32  is blocked, which due to the infrequent times when the cabin attendant seat  46  is being used, and the concurrent undesirable use of the toilet, is unproblematic. As an alternative, pivoting in front of the adjacent parking space for a cabin trolley  14  would be imaginable and sensible, because the wall that delimits this parking space  42  is mechanically very strong. Furthermore, because of the mechanical strength the adjacent wall can particularly easily receive a locking means for locking the cabin attendant seat  46 . In this variant 3½ cabin trolleys  14  can be accommodated. 
         [0068]      FIG. 3  shows a further modification of a cabin segment  94  according to an embodiment of the invention, in which apart from the second lateral segment module  2  a central module  48  with a urinal  52 , and a first lateral segment module that follows on from the aforesaid are used. In this arrangement, too, the cabin attendant seat  46  is arranged on a projection  92  and can be pivoted to an in-use position that blocks an access opening to the toilet compartment  50  or to the parking space  54 . 
         [0069]      FIG. 4 , as an example, shows a further modification of a cabin segment  96  according to an embodiment of the invention in which a second lateral segment module  2 , a central module  58  with parking spaces  60  to  64  and storage compartments  68 , as well as a first lateral segment module  72 , are used. While this variant only provides a single toilet compartment  76 , however, parking spaces for a total of 5½ cabin trolleys  14  are provided, as are a large number of storage compartments for storing food or the like. 
         [0070]    This illustration shows particularly clearly that one of the parking spaces  64  of the central module  58  extends significantly further into the cabin in longitudinal direction than do the other parking spaces  60  and  62  or  64 , and as a consequence it is very easy to provide adequate design space for the cabin attendant seat  46 . 
         [0071]    Because of the arrangement of a multitude of storage compartments above the parking spaces for cabin trolleys  14 , it is desirable if the headrest part  70  of the cabin attendant seat  46  is designed so as to be removable. 
         [0072]    In an in-use position the cabin attendant seat  46  can be pivoted to the parking spaces  60  and  62  or  64  so that the cabin trolley  14  situated therein can no longer be wheeled out. This is also unproblematic because during those times in which the cabin attendant seat  46  is in use, there is no service to passengers anyway, and the cabin trolleys are in place in their respective parking spaces  60  and  62 . 
         [0073]    In the variant shown, the cabin attendant seat  46  is not arranged on a projection  92 ; instead it blocks at least in part the parking space  62  of the end of the central module  58 , which end faces away from the lateral segment module  72 , so that the cabin trolley  14  can be removed from this parking space  62  only when the cabin trolley of the end facing the lateral module segment  72  has been wheeled out. This will be unproblematic when providing service to passengers on board the aircraft; in return, with this variant of the cabin segment  96  according to an embodiment of the invention very strong integration of many functions, and in particular stowage space, are created. 
         [0074]    With reference to  FIG. 5 , it is at least diagrammatically described that part of the cabin segment  86 ,  94  and  96  according to an embodiment of the invention can be separated by a dividing curtain  98  from the rest of the cabin, wherein this dividing curtain  98  is particularly preferably arranged in the center and extends towards a cabin monument  100  spaced apart in longitudinal direction and can be guided by way of a curtain rod  102  or the like. 
         [0075]    If in this cabin region further cabin attendant seats are necessary, they can be arranged in longitudinal direction on a partition wall or a monument opposite the cabin segment  86 ,  94  or  96  according to an embodiment of the invention as diagrammatically shown in  FIG. 5  with the example of two cabin attendant seats  104  on a partition wall  106 . 
         [0076]      FIG. 6  shows the variant of a cabin segment  86  from  FIG. 2  with an alternative design of the segment modules required for this. Instead of coupling a second lateral segment module  2  to a central module  26  and a first lateral segment module  72 , at least from the point of view of production technology it may make sense to create a first lateral segment module  108  that exclusively comprises two toilet compartments  76  and  34  as shown in  FIGS. 1   b  and  1   e . It is understood that instead of the toilet compartment  34  it is also possible to use a modification in the form of a toilet compartment  50  that comprises a urinal  52 . 
         [0077]    In the exemplary embodiment shown, a second lateral segment module  110  could comprise the second lateral segment module  2  shown in  FIG. 1   a  and a front part of the central module  26  that is arranged beside the toilet compartment  34  and that provides a parking space for a cabin trolley and storage compartments  44 . To it the cabin attendant seat  46  that can be pivoted is also affixed. 
         [0078]    The variation of the arrangement of  FIG. 6  for use with a urinal is shown in  FIG. 7 . There a first lateral segment module  112  is shown which for the purpose of simplifying production steps comprises both a toilet compartment  76  with a toilet  78  and a toilet compartment  50  with a urinal  52 . 
         [0079]    Likewise a second lateral segment module  114  is shown which practically is a combination of the second lateral segment module  2  and the arrangement comprising a parking space  54  for a cabin trolley  14  and storage compartments  56  of  FIG. 1   c  adjacent to the toilet compartment  50 . 
         [0080]    In this arrangement the cabin attendant seat  46  is arranged on the second lateral segment module  114  where it can be pivoted. 
         [0081]      FIG. 8  shows a further variant, in which a first lateral segment module  72  with a second lateral segment module  116  in the form of a second lateral segment module  2  of  FIG. 1   a  combined with a central module  58  of  FIG. 1   d  can be combined. 
         [0082]    In the further course the optional convertibility of adjacent toilet compartments  118  and  120  is described in detail with reference to  FIGS. 9   a  to  9   f . Said figures show a cabin segment from the preceding  FIG. 2 ,  3 ,  5 ,  6  or  7 , for the sake of simplicity, however, without any persons therein, as well as from a somewhat altered angle of view, and without a detailed illustration of the further integrated functions. The two toilet compartments  118  and  120  of the cabin segment according to an embodiment of the invention, be it toilet compartments with a toilet or with a urinal, may always be separated by means of a fixed partition wall if the operator of the aircraft does not wish a convertibility. In the shown embodiment the two toilet compartments  118  and  112  may be converted in a few simple steps and preferably without the use of tools, without the addition or removal of components, and without limitations during the flight, preferably by a flight attendant, to form an enlarged toilet compartment. Following the use of this enlarged toilet compartment the toilet arrangement according to an embodiment of the invention can then be converted back to form two separate toilet compartments. 
         [0083]    At first in  FIG. 9   a  the first toilet compartment  120  is closed by a first toilet compartment door  122 . The second toilet compartment  118  is also closed by a second toilet compartment door  124 . Between the toilet compartments  120  and  118  there is a partition wall  126  comprising a first partition wall segment  128  and a second partition wall segment  130 . In the example shown the first partition wall segment  128  is held on a hinge axis  132 , and the second partition wall segment  130  is held on a hinge axis  134 . In the example shown the two hinge axes  132  and  134  are positioned so as to be spaced apart from each other; consequently the partition wall  126  is designed as a double-wing door or a double door, and the region situated between the two hinge axes  132  and  134  forms the delimitation in longitudinal direction of the second toilet compartment  118 . 
         [0084]    In order to connect the two toilet compartments  120  and  118  to form a joint toilet compartment, at first the first toilet compartment door  122  is opened outwards and away from the two toilet compartments  120  and  118  as indicated by an arrow in  FIG. 9   b . This takes place by means of a pivot movement of the first toilet compartment door  122  on a hinge axis  136  that is arranged on a delimitation wall of the first toilet compartment  120 . 
         [0085]    Subsequently, as shown in  FIG. 9   c , the first partition wall segment  128 , after corresponding unlocking from a cabin floor and/or a cabin ceiling and/or the second partition wall segment  130 , is moved on the hinge axis  132  towards the pressure bulkhead  88  so that an opening arises between the first toilet compartment  120  and the second toilet compartment  118 . In this reached position it is particularly advantageous if the first partition wall segment  128  is locked, and consequently its position is determined until its renewed unlocking. 
         [0086]    In a further step the second partition wall segment  130 , as shown in  FIG. 9   d , after unlocking from the cabin floor and/or from the cabin ceiling, is moved on the hinge axis  134  by approximately 180° towards the outside so that as a consequence the first toilet compartment  118  and the second toilet compartment  120  are completely interconnected. In this position an opening  138  arises, through which, for example, a person sitting in a wheelchair  140  can effortlessly be moved, or move, into the now joint toilet compartment  142  ( FIG. 9   e ). 
         [0087]    After subsequent pivoting of the second partition wall segment  130  on the hinge axis  134  towards the opening  138 , separation of the joint toilet compartment  142  towards the outside takes place ( FIG. 9   f ). The second partition wall segment  130  is correspondingly used as the new entrance door to the joint toilet compartment  142 . Furthermore, in this arrangement the first toilet compartment door  122  forms a sidewall of the entrance region to the joint toilet compartment  142 , which sidewall is arranged so as to be parallel to the direction of extension of the first toilet compartment  118 , of the second toilet compartment  120 , and at a distance from the second toilet compartment  120 . 
         [0088]    In the shared toilet compartment  142  there is now adequate space for moving from the wheelchair  140  to a toilet seat or the like. If required, the joint toilet compartment  142  can be converted back to form two separate toilet compartments  118  and  120 . 
         [0089]    It is thus evident to the average person skilled in the art that the partition wall segments  128  and  130  as well as the first toilet door  122  comprise at least one locking mechanism so that these elements can be locked in the various positions shown in  FIGS. 9   a  to  9   f.    
         [0090]    Likewise it should be ensured that the new toilet compartment door  130  after conversion to form a larger toilet compartment is locked from the inside so as to prevent access by third parties. However, if required, it should be possible for a flight attendant to unlock at least one of the two toilet compartment doors  122 ,  124  from the outside when help is required. 
         [0091]    Finally,  FIG. 10  shows an aircraft  144  with a passenger cabin in which as an example there is a cabin segment  86 ,  94  or  96  according to the invention. 
         [0092]    In addition, it should be pointed out that “comprising” does not exclude other elements or steps, and “a” or “one” does not exclude a plural number. Furthermore, it should be pointed out that characteristics or steps which have been described with reference to one of the above exemplary embodiments can also be used in combination with other characteristics or steps of other exemplary embodiments described above. Reference characters in the claims are not to be interpreted as limitations. 
       LIST OF REFERENCE CHARACTERS 
       [0000]    
       
           2  Lateral segment module 
           4  Outer lateral face 
           6  Inner lateral face 
           8  First parking space 
           10  Second parking space 
           12  Base 
           14  Cabin trolley 
           16  Wheelchair 
           18  Storage compartment 
           20  Storage compartment 
           22  Intermediate floor/work surface 
           24  Storage compartment 
           26  Central module 
           28  First lateral face 
           30  Second lateral face 
           32  Access opening 
           34  Toilet compartment 
           36  Door 
           38  Toilet 
           40  Base 
           42  Parking space 
           44  Compartment 
           46  Cabin attendant seat 
           48  Central module 
           50  Toilet compartment 
           52  Urinal 
           54  Parking space 
           56  Compartment 
           58  Central module 
           60  Parking space 
           62  Parking space 
           64  Parking space 
           66  Intermediate floor 
           67  Oven 
           68  Storage compartment 
           69  Flap 
           70  Headrest part 
           72  First lateral segment module 
           74  Outer lateral face 
           76  Toilet compartment 
           78  Toilet 
           80  Inner lateral face 
           82  Side 
           84  Hinge 
           86  Cabin segment 
           88  Pressure bulkhead 
           90  Wall 
           92  Projection 
           94  Cabin segment 
           96  Cabin segment 
           98  Dividing curtain 
           100  Cabin monument 
           102  Curtain rod 
           104  Cabin attendant seat 
           106  Partition wall 
           108  First lateral segment module 
           110  Second lateral segment module 
           112  First lateral segment module 
           114  Second lateral segment module 
           116  Second lateral segment module 
           118  Toilet compartment 
           120  Toilet compartment 
           122  First toilet compartment door 
           124  Second toilet compartment door 
           126  Partition wall 
           128  First partition wall segment 
           130  Second partition wall segment 
           132  Hinge axis 
           134  Hinge axis 
           136  Hinge axis 
           138  Opening 
           140  Wheelchair 
           142  Joint toilet compartment 
           144  Aircraft