Toilet systems in interior cabins of vehicles

Abstract

A lavatory system (150) within an interior cabin (100, 152) of a vehicle includes a housing defining an interior chamber (182), a first lavatory unit (156) located within the interior chamber (182), and a second lavatory unit (158) located within the interior chamber (182). The first lavatory unit (156) is adjacent to the second lavatory unit (158). In at least one embodiment, a lavatory within an interior cabin (100, 152) of a vehicle includes an interior chamber (182) defined by one or more exterior walls and a storage compartment extending outwardly from at least one exterior wall. The storage compartment defines an interior storage space connected to the interior chamber (182). In at least one embodiment, the lavatory includes a first lavatory unit (156), a second lavatory unit (158) adjacent to the first lavatory unit (156), and a receiving compartment shared by the first lavatory unit (156) and the second lavatory unit (158).

Description

Technical Field

[0001] Examples of the present disclosure generally relate to lavatories within interior cabins of vehicles, such as commercial aircraft. Background Art

[0002] Commercial aircraft are used to transport passengers between locations. Typical commercial aircraft include one or more lavatories located within the interior cabin.

[0003] Space within commercial aircraft is limited. Notably, lavatories within commercial aircraft are typically relatively small, reducing lavatory space and increasing space for other areas, such as passenger seating. Larger lavatories would necessarily take up more space within a commercial aircraft and might prevent the installation of additional passenger seats within the interior cabin. Because additional passenger seats increase revenue, aircraft operators generally prefer to have additional passenger seats within the interior cabin.

[0004] Conventional lavatories within an aircraft's interior cabin typically occupy approximately 20%-30% more of the interior cabin's longitudinal area (i.e., the area extending along and / or parallel to the longitudinal axis) than the seat assemblies. Typically, current lavatories typically replace six to twelve passenger seats. Certain interior cabins can be rearranged to ensure that only six passenger seats are replaced, but this results in a cascading effect on surrounding interior features (e.g., other monuments or areas within the interior cabin). In general, including a lavatory within a commercial aircraft's interior cabin, while often necessary, reduces space within the interior cabin for other components, monuments, etc. (such as revenue-generating seats).

[0005] Furthermore, individuals with limited mobility (e.g., individuals with disabilities, injuries, or reduced mobility) may find it relatively difficult to maneuver within the confined space of a lavatory within a commercial aircraft. These individuals may have difficulty maneuvering within the lavatory (e.g., between the entrance and the toilet, between the toilet and the sink).

[0006] Therefore, some manufacturers have designed larger lavatories designed specifically for people with limited mobility. However, when the size of the lavatory is expanded, the space within the interior cabin for other components (such as passenger seats) is necessarily reduced. Summary of the Invention

[0007] There is a need for a lavatory system comprising a plurality of lavatory units that occupy less space within the interior cabin of a vehicle than known lavatories. There is a need for a lavatory system comprising a plurality of lavatory units that occupy less space than an equal number of individual lavatories. Furthermore, there is a need for a lavatory system that is conveniently and easily accessible to persons with limited mobility. Furthermore, there is a need for a multi-unit lavatory system that does not reduce the space available for additional seating within the interior cabin of a vehicle.

[0008] With those needs in mind, certain examples of the present disclosure provide a lavatory system within an interior cabin of a vehicle. The lavatory system includes a housing defining an interior chamber, a first lavatory unit within the interior chamber, and a second lavatory within the interior chamber. The first lavatory unit is adjacent to the second lavatory unit. In at least one example, the housing is a single three-dimensional space within the interior cabin. As an example, the first lavatory unit and the second lavatory unit are arranged side by side across a portion of the interior cabin. As an example, the first lavatory unit is located inside the second lavatory unit within the interior cabin, and the second lavatory unit is located outside the first lavatory unit within the interior cabin.

[0009] In at least one embodiment, the housing includes a first end wall. The first end wall is connected to an inner side wall. The inner side wall faces a passageway of the interior compartment. The inner side wall is connected to a second end wall. The second end wall is opposite the first end wall. The second end wall faces an inlet and outlet passageway of the interior compartment. The outer side wall is connected to the first end wall and the second end wall.

[0010] In at least one embodiment, the second end wall includes a first wall segment parallel to the first end wall and perpendicular to the inner sidewall. The angled wall segment is inclined toward the first end wall and the outer sidewall. A transition wall segment is connected to the angled wall segment. The transition wall segment is parallel to the inner sidewall and the outer sidewall. The second end wall segment is connected to the transition wall and the outer sidewall. The second end wall segment is parallel to the first end wall. In at least one embodiment, the outer sidewall is a portion of the outer sidewall of the interior compartment.

[0011] In at least one embodiment, the first lavatory unit includes a first passageway connected to a hallway of the interior cabin. The first door is configured to open and close the first passageway. The second lavatory unit includes a second passageway connected to an access path of the interior cabin. The second door is configured to open and close the second passageway.

[0012] In at least one example, the first lavatory unit has a first length and the second lavatory unit has a second length. The first length is greater than the second length.

[0013] In at least one embodiment, the lavatory system further includes a partition wall within the interior chamber. The partition wall separates the first lavatory unit from the second lavatory unit. In at least one embodiment, the partition wall is movable between a closed position, in which the interior chamber is divided into the first lavatory unit and the second lavatory unit, and an open position, in which the interior chamber provides an enlarged and expanded single lavatory space.

[0014] The first washroom unit comprises a first sink and a first toilet and / or urinal.The second washroom unit comprises a second sink and a second toilet.

[0015] In one embodiment, the lavatory system further includes a barrier movably coupled to the first lavatory unit or the second lavatory unit. The barrier is movable between an extended position and a retracted position. When in the extended position, the barrier is positioned in front of an exit door of the vehicle. When the barrier is in the retracted position, the exit door is visible from within the interior cabin. The barrier may include a handle configured to be grasped to move the barrier between the extended position and the retracted position. The barrier may include markings indicating the position of one or both of the first lavatory unit and the second lavatory unit.

[0016] In at least one embodiment, the lavatory system further includes a storage compartment extending outwardly from an outer wall of one or both of the first lavatory unit and the second lavatory unit. The storage compartment defines an interior storage space connected to the interior cavity. For example, the storage compartment is at least a portion of the storage compartment assembly. As another example, the storage compartment is at least a portion of the end cap connected to the storage compartment assembly.

[0017] A storage access door may be disposed between the storage compartment and the interior chamber. The storage access door is configured to move between an open position and a closed position. When the storage access door is in the open position, the interior storage space is open to the interior chamber. When the storage access door is in the closed position, the interior storage space is closed to the interior chamber. In at least one embodiment, the storage compartment is directly connected to the interior chamber but is not located within the interior chamber.

[0018] The access opening connects the interior storage space to the interior chamber. The access opening may be formed through the outer wall.

[0019] The storage compartment may include a lighting assembly positioned within the interior storage space. For example, the lighting assembly may be operably coupled to a storage access door of the storage compartment. The lighting assembly may be configured to be activated to illuminate the interior storage space when the storage access door is open. The lighting assembly may be configured to be deactivated when the storage access door is closed.

[0020] In at least one example, the lavatory system further comprises a receiving compartment shared by the first lavatory unit and the second lavatory unit.For example, the receiving compartment extends through a partition wall separating the first lavatory unit from the second lavatory unit.

[0021] In at least one embodiment, the receiving compartment includes a first interior end wall, a front wall, a rear wall, a base, an upper countertop, and a second interior end wall, wherein the first interior end wall is within the first lavatory unit and the second interior end wall is opposite the first interior end wall. The second interior end wall is within the second lavatory unit. The first interior end wall, the front wall, the rear wall, the base, the upper countertop, and the second interior end wall define a receiving chamber of the receiving compartment. A trash container can be stored in the receiving compartment.

[0022] In at least one embodiment, the receiving compartment further comprises an access door within one of the first lavatory unit and the second lavatory unit. The access door is movable between an open position and a closed position. When the access door is in the open position, the receiving compartment is exposed. When the access door is in the closed position, the receiving compartment is enclosed.

[0023] In at least one embodiment, the lavatory system further includes a first trash opening in the first lavatory unit. The first trash opening leads to a receiving chamber of the receiving compartment. A second trash opening is provided in the second lavatory unit. The second trash opening leads to a receiving chamber of the receiving compartment. As another embodiment, a first trash duct is connected to the first trash opening, and a second trash duct is connected to the second trash opening.

[0024] Certain embodiments of the present disclosure provide a method for forming a lavatory system within an interior cabin of a vehicle. The method includes providing a housing defining an interior chamber, forming a first lavatory unit within the interior chamber, and forming a second lavatory within the interior chamber. The first lavatory unit is adjacent to the second lavatory unit.

[0025] Certain examples of the present disclosure provide a vehicle including an interior cabin having a hallway and an ingress and egress path, and a lavatory system as described herein located within the interior cabin.

[0026] Certain embodiments of the present disclosure provide a lavatory within an interior cabin of a vehicle. The lavatory includes an interior chamber defined by one or more exterior walls and a storage compartment extending outward from at least one of the exterior walls. The storage compartment defines an interior storage space connected to the interior chamber. The lavatory may be at least one lavatory unit of a lavatory system.

[0027] As one example, the storage compartment is at least a portion of the storage compartment assembly.As another example, the storage compartment is at least a portion of the end cap that is connected to the storage compartment assembly.

[0028] The lavatory may further include a storage access door disposed between the storage compartment and the interior chamber. The storage access door is configured to move between an open position and a closed position. When the storage access door is in the open position, the interior storage space is open to the interior chamber. When the storage access door is in the closed position, the interior storage space is closed to the interior chamber.

[0029] In at least one example, the storage compartment is directly connected to the interior chamber, but is not within the interior chamber.

[0030] As an example, a passageway connects the interior storage space to the interior chamber.The passageway is formed through one or more exterior walls.

[0031] The storage compartment may include a lighting assembly positioned within the interior storage space. The lighting assembly may be operably coupled to a storage access door of the storage compartment. For example, the lighting assembly may be configured to be activated to illuminate the interior storage space when the storage access door is open. The lighting assembly may be configured to be deactivated when the storage access door is closed.

[0032] Certain embodiments of the present disclosure provide a method for forming a lavatory within an interior cabin of a vehicle, the method comprising defining an interior cavity of the lavatory by one or more exterior walls, extending a storage compartment outwardly from at least one exterior wall, and connecting an interior storage space of the storage compartment to the interior cavity.

[0033] Certain examples of the present disclosure provide a vehicle including an interior compartment and a lavatory as described herein within the interior compartment of the vehicle.

[0034] Certain examples of the present disclosure provide a lavatory system within an interior cabin of a vehicle, the lavatory system including a first lavatory unit, a second lavatory adjacent to the first lavatory unit, and a receiving compartment shared by the first and second lavatory units.

[0035] In at least one example, the receiving compartment extends through a partition wall that separates the first lavatory unit from the second lavatory unit.

[0036] As an example, the storage compartment includes a first interior end wall, a front wall, a rear wall, a base, an upper countertop, and a second interior end wall, wherein the first interior end wall is located within the first lavatory unit and the second interior end wall is opposite the first interior end wall. The second interior end wall is located within the second lavatory unit. The first interior end wall, the front wall, the rear wall, the base, the upper countertop, and the second interior end wall define a storage chamber of the storage compartment. A trash container can be stored in the storage compartment.

[0037] In at least one embodiment, the receiving compartment includes an access door within one of the first lavatory unit and the second lavatory unit. The access door is movable between an open position and a closed position. When the access door is in the open position, the receiving compartment is exposed. When the access door is in the closed position, the receiving compartment is enclosed.

[0038] In at least one example, a first trash opening is provided in the first toilet unit. The first trash opening leads to a receiving chamber of the receiving compartment. A second trash opening is provided in the second toilet unit. The second trash opening leads to a receiving chamber of the receiving compartment. As another example, a first trash duct is connected to the first trash opening, and a second trash duct is connected to the second trash opening.

[0039] Certain examples of the present disclosure provide a method of forming a lavatory system within an interior cabin of a vehicle. The method includes providing a first lavatory unit and a receiving compartment shared by a second lavatory unit adjacent to the first lavatory unit.

[0040] Certain examples of the present disclosure provide a vehicle including a containment compartment as described herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A front perspective view of the aircraft is shown.

[0042] Figure 2A A top plan view of an interior cabin of an aircraft is shown.

[0043] Figure 2B A top plan view of an interior cabin of an aircraft is shown.

[0044] Figure 3 An interior perspective view of an interior cabin of an aircraft is shown.

[0045] Figure 4 An interior perspective view of a lavatory within an interior cabin of an aircraft is shown.

[0046] Figure 5 Shown is a top view of the lavatory system within the interior cabin.

[0047] Figure 6 Shown is a top view of the lavatory system within the interior cabin.

[0048] Figure 7 Shown is a top view of the lavatory system within the interior cabin.

[0049] Figure 8 Shown is a top view of the lavatory system within the interior cabin.

[0050] Figure 9 A perspective view of a lavatory system is shown near an exit door.

[0051] Figure 10 A front view of the barrier is shown in an extended position.

[0052] Figure 11 A perspective view of a lavatory connected to a row of overhead storage compartment assemblies is shown.

[0053] Figure 12 Shown is a perspective view of a storage compartment extending outwardly from a lavatory.

[0054] Figure 13 Shown is a perspective view of the interior of a receiving compartment for connecting a first toilet to a second toilet.

[0055] Figure 14 A simplified front view of a receiving compartment common to the first and second lavatories is shown.

[0056] Figure 15 A simplified front view of a receiving compartment common to the first and second lavatories is shown.

[0057] Figure 16 A flow chart illustrating a method of forming a lavatory system within an interior cabin of a vehicle.

[0058] Figure 17 A flow chart illustrating a method of forming a lavatory within an interior cabin of a vehicle.

[0059] Figure 18 A block diagram illustrating a method of forming a lavatory within an interior cabin of a vehicle is shown.

[0060] Figure 19 Shown is a top view of the lavatory system within the interior cabin. DETAILED DESCRIPTION

[0061] When read in conjunction with the accompanying drawings, the above summary of the invention and the detailed description of certain examples below will be better understood. As used herein, an element or step described in the singular and preceded by the word "one" or "an" should be understood as not necessarily excluding plural elements or steps. In addition, reference to "an example" is not intended to be interpreted as excluding the existence of additional examples that also incorporate the described features. In addition, unless explicitly stated to the contrary, an example that "includes" or "has" one or more elements having a specific condition may include other elements that do not have that condition.

[0062] Certain embodiments of the present disclosure provide a lavatory system comprising two lavatory units within a common housing, such as a single, shared, three-dimensional space. The lavatory units are arranged so that only a single, three-seat assembly unit is moved. In at least one embodiment, the lavatory system is located near the end of the seat row and the exit doorway. The lavatory system allows aircraft operators to have four lavatories (two lavatories per lavatory system) in one area while retaining up to eighteen passenger seats compared to conventional lavatories in commercial aircraft. Thus, embodiments of the present disclosure provide lavatory systems that allow aircraft operators to maintain or even increase the number of revenue-generating passenger seats within the interior cabin.

[0063] Figure 1 A front perspective view of an aircraft 10 according to an example of the present disclosure is shown. The aircraft 10 includes a propulsion system 12, which includes, for example, engines 14. Optionally, the propulsion system 12 may include more engines 14 than shown. The engines 14 are carried by wings 16 of the aircraft 10. In other examples, the engines 14 may be carried by the fuselage 18 and / or the tail 20. The tail 20 may also support a horizontal stabilizer 22 and a vertical stabilizer 24.

[0064] The fuselage 18 of the aircraft 10 defines an interior cabin 30 that includes a flight deck or cockpit, one or more work sections (e.g., a galley, a crew carry-on baggage area, etc.), one or more passenger sections (e.g., a first-class section, a business-class section, and a crew section), one or more lavatories, etc. The interior cabin 30 includes one or more lavatory systems, lavatory units, or lavatories, as described herein.

[0065] Alternatively, examples of the present disclosure may be used with various other vehicles besides aircraft, such as automobiles, buses, locomotive and train cars, water vehicles, etc. Additionally, examples of the present disclosure may be used with fixed structures, such as commercial and residential buildings.

[0066] Figure 2A 1 shows a top plan view of an interior cabin 30 of an aircraft according to an example of the present disclosure. The interior cabin 30 may be within a fuselage 32 of the aircraft, such as Figure 1The fuselage 18 is formed of a plurality of fuselage walls. For example, one or more fuselage walls may define an interior cabin 30. The interior cabin 30 includes a plurality of sections, including a forward section 33, a first class section 34, a business class section 36, a forward galley station 38, an extended economy class or crew section 40, a standard economy class or crew section 42, and a rear section 44, which may include a plurality of lavatories and galley stations. It should be understood that the interior cabin 30 may include more or fewer sections than shown. For example, the interior cabin 30 may not include a first class section and may include more or fewer galley stations than shown. Each section may be separated by a cabin transition area 46, which may include a cabin divider assembly located between aisles 48.

[0067] like Figure 2A As shown, the interior cabin 30 includes two passageways 50 and 52 leading to the rear section 44. Alternatively, the interior cabin 30 may have fewer or more passageways than shown. For example, the interior cabin 30 may include a single passageway extending through the center of the interior cabin 30 and leading to the rear section 44.

[0068] The hallways 48, 50, and 52 extend to an egress path or doorway 60. An exit door 62 is located at the end of the egress path 60. The egress path 60 can be perpendicular to the hallways 48, 50, and 52. The interior cabin 30 can include more egress paths 60 at locations other than those shown. As described herein, the lavatory system can be located at or near the intersection of the hallways 48, 50, 52 and the egress path 60.

[0069] Figure 2B A top plan view of an interior cabin 80 of an aircraft according to an example of the present disclosure is shown. The interior cabin 80 is Figure 1 An example of an interior cabin 30 is shown. The interior cabin 80 may be within a fuselage 81 of an aircraft. For example, one or more fuselage walls may define the interior cabin 80. The interior cabin 80 includes a plurality of sections, including a main cabin 82 having passenger seats 83 and a rear section 85 located rearward of the main cabin 82. It should be understood that the interior cabin 80 may include more or fewer sections than shown.

[0070] The interior chamber 80 may include a single passageway 84 that leads to the rear section 85. The single passageway 84 may extend through the center of the interior chamber 80 and lead to the rear section 85. For example, the single passageway 84 may be coaxially aligned with a central longitudinal plane of the interior chamber 80.

[0071] The hallway 84 extends to an access path or doorway 90. An exit door 92 is located at the end of the access path 90. The access path 90 can be perpendicular to the hallway 84. The interior cabin 80 can include more access paths than shown. As described herein, a lavatory system can be located at or near the intersection of the hallway 48 and one or more access paths 90.

[0072] Figure 3 An interior perspective view of an interior cabin 100 of an aircraft according to an example of the present disclosure is shown. The interior cabin 100 is Figure 1 An example of an interior cabin 30 is shown. The interior cabin 100 includes an outer sidewall 102 connected to a roof panel 104. Windows 106 may be formed in the outer sidewall 102. A floor panel 108 supports multiple rows of seats 110. Figure 3 As shown, a row 112 may include two seats 110 on either side of an aisle 113. However, a row 112 may include more or fewer seats 110 than shown. Additionally, the interior cabin 100 may include more aisles than shown.

[0073] On either side of the aisle 113, a passenger service unit (PSU) 114 is secured between the outer sidewall 102 and the ceiling 104. The PSU 114 extends between the front and rear ends of the interior cabin 100. For example, a PSU 114 may be positioned above each seat 110 within a row 112. Each PSU 114 may include a housing 116 that generally houses vents, reading lights, oxygen bag trays, attendant request buttons, and other such controls above each seat 110 (or groups of seats) within the row 112.

[0074] On either side of the aisle 113, overhead storage compartment assemblies 118 are secured to the roof 104 and / or outer sidewall 102 above and inboard of the PSU 114. The overhead storage compartment assemblies 118 are secured above the seats 110. The overhead storage compartment assemblies 118 extend between the front and rear ends of the interior compartment 100. Each storage compartment assembly 118 may include a pivotally secured to a positioning plate (at Figure 3 An overhead storage compartment assembly 118 may be positioned above and inside the lower surface of the PSU 114. The overhead storage compartment assembly 118 is configured to pivot open to receive, for example, carry-on luggage and personal items of a passenger.

[0075] As used herein, the term "outboard" refers to a location that is further away from the central longitudinal plane 122 of the interior compartment 100 than another component. The term "inboard" refers to a location that is closer to the central longitudinal plane 122 of the interior compartment 100 than another component. For example, the lower surface of the PSU 114 can be outboard relative to the storage compartment assembly 118.

[0076] Figure 4 Shown is an interior perspective view of a lavatory 130 within an interior compartment of a vehicle, such as any of the interior compartments described herein. The lavatory 130 is, for example, Figure 1 The lavatory 130 is an example of an enclosed space, a three-dimensional space, or a chamber within the interior cabin of the illustrated aircraft 10. The lavatory 130 may be on an aircraft, as described above. Alternatively, the lavatory 130 may be on various other vehicles. In other examples, the lavatory 130 may be within a fixed structure, such as a commercial building or a residential building. The lavatory 130 includes a base plate 131 supporting a toilet 132 (and / or urinal), a storage cabinet 134, and a sink 136 or wash basin. The lavatory 130 may be arranged differently from that shown. The lavatory 130 may include more or fewer components than shown.

[0077] Figure 5 A top view of a lavatory system 150 within an interior compartment 152 according to an example of the present disclosure is shown. The lavatory system 150 may be used within any interior compartment described herein, such as a lavatory system 150 for a room having a plurality of interior compartments. Figures 1 to 3 The interior cabin is shown and described.

[0078] The lavatory system 150 includes a single housing 154 (e.g., a cubical space) that includes adjacent first and second lavatory units 156, 158. That is, the lavatory system 150 is a single cubical space. The first and second lavatory units 156, 158 are arranged laterally across a portion of the interior compartment 152, rather than longitudinally along the aisle 160. That is, the first and second lavatory units 156, 158 are arranged side-by-side across a portion of the interior compartment 152, rather than end-to-end along the length of the interior compartment 152. Thus, the lavatory system 150 extends over a smaller longitudinal portion of the interior cabin 152 (e.g., one longitudinal region 162) rather than an extended longitudinal portion (e.g., two longitudinal regions (e.g., if the first lavatory unit 156 and the second lavatory unit 158 ​​are end-to-end)), thereby freeing up additional space for other components, such as another cubic space (e.g., a galley) or additional passenger seats (e.g., a three-seat assembly) that generates revenue for the aircraft operator.

[0079] The lavatory system 150 provides two lavatory units, such as a first lavatory unit 156 and a second lavatory unit 158, while only moving a single seating assembly having three passenger seats. The side-by-side arrangement of the first lavatory unit 156 and the second lavatory unit 158 ​​provides multiple lavatory units while also allowing for, for example, additional passenger seats (compared to lavatories arranged end-to-end). In at least one example, the lavatory system 150 provides multiple lavatory units within the space of a passenger seating assembly having three seat units.

[0080] The first lavatory unit 156 is an inner lavatory unit and the second lavatory unit 158 ​​is an outer lavatory unit. It should be understood that the terms first and second are for labeling purposes only. The first lavatory unit can be the second lavatory unit and vice versa.

[0081] The single enclosure (e.g., cubical space) 154 defining the lavatory system 150 includes a first end wall 164 (or first system end wall) connected to an inner sidewall 166 (or system inner sidewall) facing a hallway 160. The inner sidewall 166 is connected to a second end wall 168 (or second system end wall) opposite the first end wall 164. The second end wall 168 faces an access path 170 connected to the hallway 160. In at least one embodiment, the second end wall 168 includes a first wall segment 172 that can be parallel to the first end wall 164 (and perpendicular to the inner sidewall 166). The first wall segment 172 is connected to an angled wall segment 174 that is angled toward the first end wall 164 and an outer sidewall 176 (or system outer sidewall), and the outer sidewall is connected to the first end wall 164 and the second end wall 168. The angled wall segment 174 is further connected to a transition wall segment 178 that can be parallel to the inner sidewall 166 and the outer sidewall 176. The transition wall segment 178 connects to a second wall segment 180, which may be parallel to the first end wall 164 and perpendicular to the outer sidewall 176. Alternatively, the angled wall segment 174 may connect directly to the second wall segment 180 without the transition wall segment 178. The second wall segment 180 connects to the outer sidewall 178.

[0082] In at least one embodiment, the outer sidewall 176 is an outer sidewall of the inner chamber 152 (e.g., Figure 3 The outer sidewall 176 is a portion of the outer sidewall 102 shown in FIG. That is, the outer sidewall 102 partially defines the interior compartment 152. Using a portion of the outer sidewall of the interior compartment 152 to provide the outer sidewall 176 increases the interior space within the lavatory system 150. In at least one other example, the outer sidewall 176 is a separate wall that abuts against or is otherwise adjacent to the outer sidewall of the interior compartment 152.

[0083] The first end wall 164, the inner side wall 166, the second end wall 168 and the outer side wall 176 define the outer periphery of the shell 154 (and the three-dimensional space 155) and the internal chamber 182 of the lavatory system 150. That is, the shell 154 defines the internal chamber 182. The shell 154 is within the internal compartment 152. The shell 154 is not the internal compartment 152. For example, the internal compartment may include multiple lavatories. However, the internal compartment 152 includes the shell 154, which includes the first lavatory unit 156 and the second lavatory unit 158 ​​(the two lavatories are adjacent to each other compared to two separate lavatories) within the internal chamber 182 of the shell 154. The shell 154 includes the first lavatory unit 156 and the second lavatory unit 158 ​​within the internal chamber 182. The first lavatory unit 156 and the second lavatory unit 158 ​​are within the internal chamber 182.

[0084] The first lavatory unit 156 includes a passageway 184 connected to the hallway 160. A door 186 is movably coupled to the first end wall 164 and / or the inner side wall 166. The door 186 faces the hallway 160 and is configured to move between a closed position, in which the passageway 184 is closed to the hallway 160, and an open position, in which the passageway 184 is open to the hallway 160. When the door 186 is in the open position, a person can pass between the hallway 160 and the first lavatory unit 156 through the passageway 184.

[0085] The second lavatory unit 158 ​​includes a passageway 188 connected to the access path 170. A door 190 is movably coupled to the second end wall 168 (e.g., the second wall segment 180) and / or the outer sidewall 176. The door 190 faces the access path 170 and is configured to move between a closed position, in which the passageway 188 is closed to the access path 170, and an open position, in which the passageway 188 is open to the access path 170. When the door 190 is in the open position, a person can pass between the access path 170 and the second lavatory unit 158 ​​through the passageway 188.

[0086] In at least one example, the length 192 of the first lavatory unit 156 is greater than the length 194 of the second lavatory unit 158. For example, the first lavatory unit 156 can extend along a greater longitudinal length of the hallway 160 than the second lavatory unit 158. As such, the second wall segment 180 of the passageway 188 including the second lavatory unit 158 ​​can be further recessed toward the first end wall 164 than the first wall segment 172.

[0087] A divider wall 196 is disposed within the interior chamber 182 and extends between the first end wall 164 and the second end wall 168. The divider wall 196 separates the first lavatory unit 156 from the second lavatory unit 158. The divider wall 196 may include a first divider section 198 that may be perpendicular to the first end wall 174. The first divider section 198 is connected to an angled divider section 200 that is angled toward the inner side wall 166 and the first wall section 172. The angled divider section 200 is connected to a second divider section 202 that may be parallel to the first divider section 198. The second divider section 202 may be connected to the transition wall section 178 and / or another portion of the second end wall 168.

[0088] In at least one example, the first lavatory unit 156 is defined between the inner sidewall 166, the first wall segment 172, the angled wall segment 174, the transition wall segment 178, the first side 204 of the dividing wall 196, and the inner segment 165 of the first end wall 164 (i.e., the portion inward from the dividing wall 196). The second lavatory unit 158 ​​is defined between the outer sidewall 176, the outer segment 167 of the first end wall 164 (i.e., the portion outward from the dividing wall 196), the second side 206 of the dividing wall 196 (opposite the first side 204), and the second wall segment 180 of the second end wall 168.

[0089] The first lavatory unit 156 includes a first sink 208 and a first toilet 210, with a first standing space 212 in front of the first toilet 210. The first sink 208 can be located at or near a corner 209 defined by the first side 204 of the dividing wall 196 and the inner section 165 of the first end wall 164. The first toilet 210 can be located at or near a corner 211 defined by the inner side wall 166 and the second end wall 168. As used herein, the term "toilet" includes one or both of a standard toilet and a urinal.

[0090] The second lavatory unit 158 ​​includes a second sink 214 and a second toilet 216 with a second standing space 218 in front of the second toilet 216. The second sink 214 can be located at or near a corner 213 defined by the second side 206 of the dividing wall 196 and the second wall segment 180 of the second end wall 168. The second toilet 216 can be located at or near a corner 215 defined by the outer side wall 176 and the outer side segment 167 of the first end wall 164.

[0091] Figure 5 The structures of the sink and toilet of the first lavatory unit 156 and the sink and toilet of the second lavatory unit 158 ​​shown are merely exemplary. The sinks and toilets may be located in various other areas besides the areas shown.

[0092] In at least one embodiment, a flight attendant assistance space 220 is provided forward of the second wall segment 180 of the second end wall 168 (e.g., forward of the passageway 188). The flight attendant assistance space 220 may be located near an exit door at the end of the access path 170. The flight attendant assistance space 220 is an open area where flight attendants can stand to assist passengers entering and exiting the access path 170. The second lavatory unit 158 ​​is sized and configured to retain the area required for a flight attendant assistance space (e.g., a 12" x 20" area), which may be, for example, an area specified by a regulatory agency (e.g., the Federal Aviation Administration). The angled wall segment 174 may be provided with ingress and egress flow directors that direct and guide passengers toward the exit door upon exiting the interior cabin 152 and toward the aisle 160 upon entering the interior cabin 152.

[0093] Figure 6 A top view of a lavatory system 150 according to an example of the present disclosure is shown within an interior compartment 152. In this example, a first sink 208 of a first lavatory unit 156 can be coupled to the first side 204 of the dividing wall 196 at a location midway between the first end wall 164 and the second end wall 168, and a second sink 214 can be coupled to the outer side wall 176. Figure 6 The configuration of the sinks and toilets of the first and second lavatory units 156 and 158 shown is merely exemplary. The sinks and toilets may be located in various other areas besides the areas shown.

[0094] Figure 7 A top view of a lavatory system 150 according to an example of the present disclosure is shown within an interior compartment 152 . Figure 7 The illustrated lavatory system 150 is similar to Figure 5The lavatory system shown, except that the dividing wall 196 can be configured to move between a closed position, in which the interior chamber 182 is divided into the first lavatory unit 156 and the second lavatory unit 158, and an open position, in which the interior chamber 182 provides an enlarged, extended single lavatory space that is easily and comfortably accessible to a person with limited mobility. The first sink 208, the first toilet 210, the second sink 214, and the second toilet 216 may not be connected to a movable portion of the dividing wall 196. For example, the dividing wall 196 may include a plurality of foldable segments 230 coupled together by hinges 232 that allow the dividing wall 196 to fold and disconnect from one or both of the first end wall 166 and the second end wall 168. Thus, the dividing wall 196 is foldable or otherwise collapsible. The dividing wall 196 in the folded position can be fixed against the inner side wall and / or removed and stored in another part of the lavatory system 150 or the interior compartment 152. As another example, the dividing wall 196 can be configured to telescope between an open position and a closed position. As another example, the dividing wall 196 can be configured to slide between an open position and a closed position. As another example, the dividing wall 196 can be a door curtain or a drape that can include a sound attenuating element. In short, the dividing wall 196 can be a movable wall with multiple segments that are configured to move so as to allow the dividing wall 196 to move between an open position and a closed position.

[0095] Figure 8 A top view of a lavatory system 150 according to an example of the present disclosure is shown within an interior compartment 152 . Figure 8 The illustrated lavatory system 150 is similar to Figure 6 The lavatory system shown, except that the dividing wall 196 can be configured to move between a closed position, in which the interior chamber 182 is divided into a first lavatory unit 156 and a second lavatory unit 158, and an open position, in which the interior chamber 182 provides an enlarged, extended single lavatory space that is easily and comfortably accessible to a person with limited mobility, as described with respect to FIG. Figure 7 Descriptive.

[0096] Figure 19 A top view of a lavatory system 150 according to an example of the present disclosure is shown within an interior cabin. In this example, the lavatory system 150 includes a dividing wall 196 having one or more sliding or telescoping sections 197.

[0097] refer to Figures 5 to 8 and Figure 19, the lavatory system 150 allows the space of three passenger seats to be occupied by two lavatory units. Conventional lavatories consume approximately 20% to 30% more longitudinal space than the passenger seats, resulting in six to twelve passenger seats being replaced in order to install two lavatories. Conventional lavatory area sizes range from 10.8 to 13.4 square feet. In contrast, the lavatory system 150 as described herein provides two lavatory units in an area of ​​thirteen square feet, for example, which can be the same or a similar area as a single three-passenger seat assembly (60" x 32").

[0098] In at least one example, the lavatory system 150 can be located at the end of a row of seats near an exit door. The second lavatory unit (or outboard lavatory unit) 158 opens to an access path 170, allowing for a side exit path to a reserved space to be used by flight attendants, such as during an emergency evacuation (when the lavatory is unavailable). The first lavatory unit (or inboard lavatory unit) 156 opens to an aisle 160 or, alternatively, to the same access path 170.

[0099] As an option, the first lavatory unit 156 may extend longitudinally further than the second lavatory unit 158 ​​because the first lavatory unit 156 is inboard of the flight attendant support space 220 .

[0100] Figure 9 A perspective view of a lavatory system 150 according to an example of the present disclosure is shown near an exit door 260 (e.g., an exit door of an aircraft). The exit door 260 is located at the end of the access path 170. As an option, the lavatory system 150 may include a movable barrier 262 that is movably coupled to the second lavatory unit 158. The barrier 262 may be a panel, wall, screen, door, curtain, etc., configured to move between an extended position and a retracted position, the barrier 262 being movable between the extended position and the retracted position. Figure 9 The extended position is shown positioned forward of the exit door 260 , which is visible within the interior compartment 152 in the retracted position.

[0101] The barrier 262 can be movably coupled to the second lavatory unit 158, another portion of the lavatory system 150, or a portion of the interior compartment, for example, via a hinge, a slide, a track, or the like. For example, the barrier 262 can be configured to pivot between an extended position and a retracted position, for example, about one or more hinges. As another example, the barrier 262 can be configured to slide between an extended position and a retracted position. As another example, the barrier 262 can be configured to expand and collapse between an extended position and a retracted position.

[0102] When passengers enter and exit the interior cabin 152 (e.g., to the access path 170) through the exit door 260 in the open position, the barrier 262 is in the retracted position. During flight, the barrier 262 moves to the extended position, such as Figure 9 In the extended position, the barrier 262 hides the exit door 260 or at least a portion of the exit door (eg, the handle 264 ), which protects the exit door 260 from being touched and ensures that there is no risk of the handle 264 being accidentally grasped by some personnel.

[0103] Figure 10 2 shows a front view of a barrier 262 in an extended position according to an example of the present disclosure. The barrier 262 may include a handle 270 that may be grasped to move the barrier 262 between the extended position and the retracted position. The barrier 262 may also include an indicator of the second lavatory unit 158 ​​( Figure 9 156 ), particularly because the door of the second lavatory unit 158 ​​may be hidden from view due to the extension of the first lavatory unit 156. The sign 272 may be painted or printed on the barrier 262. As another example, the sign 272 may be a decal. As another example, the sign 272 may be a plate or panel mounted on the barrier 262. As another example, the sign 272 may be illuminated, for example, by one or more light assemblies.

[0104] The barrier 262 may be used with any of the lavatory systems 150 described herein. Alternatively, the lavatory system 150 may not include the barrier 262.

[0105] Figure 11 Attached to the overhead storage compartment assembly 304 (e.g. Figure 3 A perspective view of a lavatory 300 according to an example of the present disclosure, showing a row 302 of storage compartment assemblies 118 (shown). The lavatory 300 may be a lavatory system 150, as described herein. For example, the lavatory 300 may be a lavatory system 150, as described herein. Figures 5 to 9 The second lavatory unit 156 is shown. As another example, the lavatory 300 can be a single unit lavatory, whether or not it is part of the lavatory system 150 described herein.

[0106] A portion of the row 302 is directly connected to the lavatory 300, such as at the front or rear end of the lavatory 300. For example, the storage compartment assembly 304 may be directly connected to the lavatory 300, such as at the upper portion 306 of the lavatory 300. As another example, the end cap 308 of the row 302 connects the storage compartment assembly 304 to the lavatory 300.

[0107] The end cap 308 and / or the storage compartment assembly 304 provide a storage compartment 310 that extends outward from an outer wall 312 of the lavatory 300, for example, at an upper overhead portion aligned with the storage compartment assembly 304. The storage compartment 310 defines an interior storage space 314 connected to an interior chamber 316 of the lavatory 300. One or more outer walls (including the outer wall 312) define the interior chamber 316. The storage compartment 310 extends outward from the one or more outer walls. That is, the storage compartment 310 is not within the interior chamber 316. Thus, the storage compartment 310 can replace one or more storage cabinets that were originally in the lavatory 300, thereby freeing up additional space in the lavatory 300.

[0108] A movable compartment or storage access door can be provided between the storage compartment 310 and the interior chamber 316 of the lavatory 300. The storage access door can be moved between an open position, in which the interior storage space 314 is open to the interior chamber 316, and a closed position, in which the interior storage space is closed to the interior chamber 316. Various supplies, such as toilet paper, facial tissue, etc., can be stored in the interior storage space 314 rather than in the interior chamber 316 of the lavatory 300.

[0109] As shown, the storage compartment 310 is directly connected to the interior chamber 316 of the lavatory 300, but is not within the interior chamber 316. Instead, the storage compartment 310 can be a part of the end cap 308 and / or a part of the storage compartment assembly 304 outside the interior chamber 316 of the lavatory 300. The interior storage space 314 of the storage compartment 310 can be approached from within the interior chamber 316 of the lavatory 300. By recessing the storage cabinet space into the end cap 308 and / or the overhead storage compartment assembly 304, more space is created within the interior chamber 316 (which otherwise might be occupied by one or more storage cabinets). Generally, the storage compartment 310 coupled to the lavatory 300 reduces the need for storage cabinet space within the lavatory 300.

[0110] Figure 12 A perspective view of a storage compartment 310 extending outward from a lavatory 300 is shown, according to an example of the present disclosure. As mentioned, the storage compartment 310 can be at least the portion of the end cap that is coupled to the storage compartment assembly, or alternatively, at least a portion of the storage compartment assembly. An access opening 320 connects the interior storage space 314 of the storage compartment 310 to the interior chamber 316 of the lavatory 300. The access opening 320 can be formed through a wall 322 (e.g., a front wall or a rear wall) of the lavatory 300.

[0111] The storage access door 324 is movably coupled to the storage compartment 310 and / or the wall 322. The storage access door 324 is movable between an open position and a closed position. The storage access door 324 can pivot about one or more hinges, slide on one or more tracks, and / or perform similar motions between the open position and the closed position.

[0112] In at least one embodiment, a lighting assembly 326 can be disposed within the storage compartment 310. The lighting assembly 326 is configured to illuminate the interior storage space 314. In at least one embodiment, the lighting assembly 326 is operably coupled to the storage access door 324, such as via a switch 328. Thus, the lighting assembly 326 can be activated to illuminate the interior storage space 314 when the storage access door 324 is open, and deactivated when the storage access door 324 is closed.

[0113] The storage compartment 310 can be used with any of the examples described herein. For example, the storage compartment 310 can be connected to any of the lavatories or lavatory units described herein.

[0114] Figure 13 A perspective view of an interior of a receiving compartment 300 for connecting a first toilet 302 to a second toilet 304 is shown according to an example of the present disclosure. The toilet system 301 includes a first toilet 302, a second toilet 304, and a receiving compartment 300 that is common (e.g., shared) to the first toilet 302 and the second toilet 304. The receiving compartment 300 defines a receiving chamber 303. In at least one example, for example, the first toilet 302 is as described with respect to Figures 5 to 9 The first lavatory unit 156 is shown and described with the second lavatory 304 being the second lavatory 158. Alternatively, the first lavatory 302 and the second lavatory 304 may be different than the first lavatory 156 and the second lavatory unit 304.

[0115] The first toilet 302 is separated from the second toilet 304 by a partition wall 306. For example, the partition wall 306 may be as shown in FIG. Figures 5 to 9 Dividing wall 196 is shown and described.

[0116] The first lavatory 302 includes a first housing 309 (eg, a first storage cabinet), and the second lavatory 304 includes a second housing 310 (eg, a second storage cabinet). The receiving compartment 300 is common to both the first lavatory 302 and the second lavatory 304. The receiving compartment 300 extends through the partition wall 196.

[0117] The storage compartment 300 includes a first interior end wall 312 connected to a front wall 314, a rear wall 316, a base 318, and an upper countertop 320 that extends between (and / or forms a portion of) the first housing 309 and the second housing 310. The front wall 314, the rear wall, the base 318, and the upper countertop 320 are connected to a second interior end wall 322 that is opposite the first interior end wall 312. The first interior end wall 312 is within the first lavatory 302, and the second interior end wall 322 is within the second lavatory 304. The first interior end wall 312 can be part of the first housing 309 (e.g., a first storage cabinet), and the second interior end wall 322 can be part of the second housing 310 (e.g., a second storage cabinet).

[0118] The first interior end wall 312, the front wall 314, the rear wall 316, the base 318, the upper countertop 320 (which extends through the partition wall 306), and the second interior end wall 322 define the receiving chamber 303 of the receiving compartment 300. The receiving compartment 300 is common to the first lavatory 302 and the second lavatory 304. The receiving compartment 300 is shared by both the first lavatory 302 and the second lavatory 304.

[0119] The trash receptacle 330 is configured to be stored within the storage compartment 300. An access door 332 is coupled to the front wall 314, for example, within the first lavatory 302. For example, the access door 332 is movably coupled to the front wall 312 within the first lavatory 302 (or optionally, the second lavatory 304). The access door 302 is movably coupled to the front wall 314, for example, via one or more hinges, sliders, and tracks. Thus, the access door 302 is configured to pivotally or slide between an open position, in which the storage chamber 303 of the storage compartment 300 is exposed, and a closed position, in which the storage chamber 303 of the storage compartment 300 is closed. When the access door 302 is in the open position, the trash receptacle 330 can be selectively removed and replaced.

[0120] A first trash opening 340 having a removable cover 341 is formed in the upper countertop 320 within the first toilet 302. A second trash opening 342 having a removable cover 343 is formed in the upper countertop 320 within the second toilet 302. Both the first trash opening 340 and the second trash opening 342 lead to the storage chamber 303 of the storage compartment 300, which is shared by both the first toilet 302 and the second toilet 304. Thus, trash in both the first toilet 302 and the second toilet 304 can be discarded into a trash receptacle 330 provided in the storage chamber 303 of the storage compartment 300 through the corresponding first trash opening 340 and second trash opening 320.

[0121] In at least one embodiment, the holding compartment 300 can be configured to contain a fire therein. For example, portions of the interior walls defining the holding compartment 300 can be made of a flame-retardant material, and when in the closed position, the joint between the wall and the access door 332 can sealingly engage one another to restrict the flow of oxygen into the holding compartment 300 when the access door 332 is closed. Furthermore, the holding compartment 300 can hold a fire suppression device 350, such as a fire extinguisher, shared by the first lavatory 302 and the second lavatory 304.

[0122] The receiving compartment 300 holds a trash receptacle 330 used by both the first and second lavatories 302, 304, thereby saving space for both the first and second lavatories 302, 304. Thus, additional space is provided for both the adjacent first and second lavatories 302, 304. The receiving compartment 300 provides access to a single trash receptacle 330 from the adjacent lavatories 302 and 304, which are separated by a partition wall 306.

[0123] The receiving compartment 300 can be used with any of the examples described herein. For example, the receiving compartment 300 can be used with any adjacent lavatory or lavatory unit as described herein.

[0124] Figure 14 A simplified front view of a receiving compartment 300 shared by a first lavatory 302 and a second lavatory 302 according to an example of the present disclosure is shown. The receiving compartment 300 extends through a partition wall 306 such that a first portion 300a of the receiving compartment 300 is within the first lavatory 302 and a second portion 300b of the receiving compartment 300 is within the second lavatory 302.

[0125] In at least one embodiment, the first container portion 330a of the trash container 330 is below the first trash opening 340, and the second container portion 330b of the trash container 330 is below the second trash opening 342. Thus, trash entering and passing through the first trash opening 340 and the second trash opening 342 is received within the receiving chamber 331 of the trash container 330.

[0126] Figure 15 A simplified front view of a storage compartment 300 shared by a first toilet 302 and a second toilet 304 according to an example of the present disclosure is shown. The trash receptacle 330 may not be positioned directly below the first trash opening 340 and / or the second trash opening 342. Thus, the first trash opening 340 may be connected to a first trash duct 350, and the second trash opening 342 may be connected to a second trash duct 352. The first trash duct 350 and the second trash duct 352 lead to the storage chamber 331 of the trash receptacle 330.

[0127] Figure 16A flow chart of a method 400 for forming a lavatory system within an interior cabin of a vehicle is shown. The method 400 includes a providing step 402 in which a housing defining an interior chamber is provided; a forming step 404 in which a first lavatory unit is formed within the interior chamber; and a forming step 406 in which a second lavatory unit is formed within the interior chamber. The first lavatory unit is adjacent to the second lavatory unit.

[0128] In at least one example, in the forming step 406 , forming the second lavatory includes forming a portion of an outer sidewall of the interior compartment as an outer sidewall of the second lavatory.

[0129] In at least one instance, in the forming step 404, forming the first lavatory unit includes connecting a first passageway of the first lavatory unit to a hallway of the interior compartment, and in the forming step 406, forming the second lavatory unit includes connecting a second passageway of the second lavatory unit to an entry and exit path of the interior compartment.

[0130] In at least one example, the method includes providing a partition wall within the interior chamber and separating the first lavatory unit from the second lavatory unit using the partition wall. As another example, the method may include moving the partition wall between a closed position, wherein the partition wall divides the interior chamber into the first lavatory unit and the second lavatory unit, and an open position, wherein the interior chamber provides an enlarged and expanded single lavatory space.

[0131] As another example, the method includes movably coupling a barrier to one of the first lavatory unit and the second lavatory unit and moving the barrier between an extended position and a retracted position. The barrier is positioned in front of an exit door of a vehicle when in the extended position. When the barrier is in the retracted position, the exit door is visible from within the interior cabin.

[0132] Optionally, the method includes providing step 408, in which a storage compartment is provided extending outwardly from an outer wall of one or both of the first lavatory unit and the second lavatory unit. The storage compartment defines an interior storage space connected to the interior chamber. Alternatively, the method includes step 408 related to a lavatory system, lavatory, or lavatory unit, but does not include steps 402 through 406.

[0133] Optionally, the method includes providing step 410, in which a receiving compartment shared by the first and second lavatory units is provided. Alternatively, the method includes step 410 related to a lavatory system, lavatory, or lavatory unit, but excludes steps 402 through 408. Alternatively, the method includes steps 408 and 410, but excludes steps 402 through 406.

[0134] Figure 17 A flow chart illustrating a method 500 for forming a lavatory within an interior cabin of a vehicle is shown. The method 500 includes a defining step 502 in which an interior cavity of the lavatory is defined by one or more exterior walls; an extending step 504 in which a storage compartment is extended outwardly from at least one exterior wall; and a connecting step 506 in which an interior storage space of the storage compartment is connected to the interior cavity.

[0135] In at least one example, the method includes forming at least a portion of the storage compartment assembly into a storage compartment. As another example, the method includes forming at least a portion of the end cap connected to the storage compartment assembly into a storage compartment.

[0136] In at least one embodiment, the method includes providing a storage access door disposed between the storage compartment and the interior chamber, and moving the storage access door between an open position and a closed position. When the storage access door is in the open position, the interior storage space is open to the interior chamber. When the storage access door is in the closed position, the interior storage space is closed to the interior chamber.

[0137] In at least one example, the extending step includes directly connecting the storage compartment to the interior chamber.The storage compartment is not within the interior chamber.

[0138] As one example, the method includes forming an access opening through one or more exterior walls and connecting the interior storage space to the interior chamber through the access opening.

[0139] In at least one example, the method includes providing a lighting assembly within the interior storage space of the storage compartment. As another example, the method includes operably coupling the lighting assembly to a storage access door of the storage compartment; activating the lighting assembly to illuminate the interior storage space when the storage access door is open; and deactivating the lighting assembly when the storage access door is closed.

[0140] Figure 18 A block diagram of a method 600 of forming a lavatory system within an interior cabin of a vehicle is shown. The method 600 includes a providing step 602 in which a common receiving compartment is provided to a first lavatory unit and a second lavatory unit adjacent to the first lavatory unit.

[0141] In at least one example, the method includes extending the receiving compartment through a dividing wall separating the first lavatory unit and the second lavatory unit.

[0142] In at least one embodiment, the receiving compartment includes a first interior end wall, a front wall, a rear wall, a base, an upper countertop, and a second interior end wall, wherein the first interior end wall is within the first lavatory unit and the second interior end wall is opposite the first interior end wall. The second interior end wall is within the second lavatory unit. The first interior end wall, the front wall, the rear wall, the base, the upper countertop, and the second interior end wall define a receiving chamber of the receiving compartment.

[0143] In at least one example, the method includes storing the waste container within the holding compartment.

[0144] As another example, the method includes providing an access door in one of the first lavatory unit and the second lavatory unit, and moving the access door between an open position and a closed position. When the access door is in the open position, the receiving compartment is exposed. When the access door is in the closed position, the receiving compartment is closed.

[0145] In at least one example, the method includes forming a first trash opening in a first toilet unit. The first trash opening opens into a receiving chamber of a receiving compartment. The method also includes forming a second trash opening in a second toilet unit. The second trash opening opens into a receiving chamber of the receiving compartment. As another example, the method includes connecting a first trash duct to the first trash opening and connecting a second trash duct to the second trash opening.

[0146] As one example, the method includes housing the first lavatory unit and the second lavatory unit within a single cubical space within the interior cabin.

[0147] As one example, the method includes positioning a first lavatory unit and a second lavatory unit side-by-side across a portion of the interior compartment.

[0148] refer to Figures 1 to 18 As described herein, examples of the present disclosure provide lavatory units that occupy less space within the interior cabin of a vehicle than known lavatories. Furthermore, examples of the present disclosure provide lavatory units that are conveniently and easily accessible to persons with limited mobility. Furthermore, examples of the present disclosure provide multi-unit lavatory systems that do not reduce the space available for additional seating within the interior cabin of a vehicle.

[0149] Although various spatial and directional terms (e.g., top, bottom, lower, middle, side, horizontal, vertical, front, etc.) may be used to describe examples of the present disclosure, it should be understood that these terms are used only with respect to the orientation shown in the accompanying drawings. The orientation may be inverted, rotated, or otherwise changed so that an upper portion becomes a lower portion, a lower portion becomes an upper portion, horizontal becomes vertical, etc.

[0150] As used herein, a structure, limitation, or element that is "configured to" perform a task or operation is specifically structurally formed, constructed, or adapted in a manner corresponding to the task or operation. For the sake of clarity and avoidance of doubt, an object that is modified to be able to perform the task or operation is not "configured to" perform the task or operation as used herein.

[0151] It should be understood that the above description is intended to be illustrative rather than restrictive. For example, the above examples (and / or aspects thereof) can be used in combination with each other. In addition, without departing from the scope of the various examples of the present disclosure, many modifications can be made to adapt specific situations or materials to the teachings of the various examples of the present disclosure. Although the size and type of the material described herein are intended to limit the parameters of the various examples of the present disclosure, these examples are by no means restrictive but illustrative examples. After reading the above description, many other examples will be apparent to those skilled in the art. Therefore, the scope of the various examples of the present disclosure should be determined with reference to the appended claims together with the full scope of the equivalents given by such claims. In the appended claims and the detailed description herein, the terms "including" and "wherein" are used as equivalents of the corresponding terms "comprising" and "in...", and in addition, the terms "first", "second" and "third" etc. are only used as marks and are not intended to impose numerical requirements on their objects.

[0152] This written description uses examples to disclose various examples of the present disclosure, including the best mode, and also to enable those skilled in the art to practice (including making and using any device or system and performing any combined method) the various examples of the present disclosure. The patentable scope of each example of the present disclosure is defined by the claims and may include other examples that occur to those skilled in the art. If these other examples have structural elements that do not differ from the literal language of the claims, or if these examples include equivalent structural elements that are not substantially different from the literal language of the claims, then these examples are intended to be within the scope of the claims.

Claims

1. A lavatory system (150) within an interior cabin (100, 152) of a vehicle, the lavatory system (150) comprising: a housing defining an interior chamber (182); a first lavatory unit (156) located within the interior chamber (182); as well as a second lavatory unit (158), located within said interior chamber (182), wherein the first toilet unit (156) is adjacent to the second toilet unit (158); wherein the housing comprises a first end wall (164) and a second end wall (168) arranged opposite to each other and defining both ends of the first toilet and the second toilet in the direction of the aisle (113), and wherein the second end wall (168) faces an inlet and outlet path (170) of the internal compartment (100, 152); wherein the second end wall (168) includes a first wall segment (172) for defining the first toilet unit (156) and a second wall segment (180) for defining the second toilet unit (158), and the second wall segment (180) is further recessed toward the first end wall (164) than the first wall segment (172); wherein the housing further comprises: an inner side wall (166) connected to the first end wall (164) and the second end wall (168), wherein the inner side wall (166) faces the passageway (113) of the internal compartment (100, 152); and an outer side wall (176) connected to the first end wall (164) and the second end wall (168); and wherein the first lavatory unit (156) includes a first passage (184) connected to a hallway (113) of the interior compartment (100, 152), wherein a first door (186) is configured to open and close the first passage (184), and wherein the second lavatory unit (158) includes a second passage (188) connected to an access path (170) of the interior compartment (100, 152), wherein a second door (190) is configured to open and close the second passage (188).

2. The bathroom system (150) according to claim 1, wherein The housing is a single three-dimensional space within the interior compartment (100, 152).

3. The washroom system (150) according to claim 1, wherein The first lavatory unit (156) and the second lavatory unit (158) are arranged side-by-side across a portion of the interior compartment (100, 152).

4. The washroom system (150) according to claim 1, wherein The first lavatory unit (156) is located inboard of the second lavatory unit (158) within the interior compartment (100, 152), and wherein the second lavatory unit (158) is located outboard of the first lavatory unit (156) within the interior compartment (100, 152).

5. The washroom system (150) according to claim 1, wherein The first wall segment (172) and the second wall segment (180) are parallel to the first end wall (164) and perpendicular to the inner side wall (166), and the second end wall (168) further includes: an angled wall segment (174) sloping toward the first end wall (164) and the outer side wall (176); and a transition wall segment (178) connected to the angled wall segment (174), wherein the transition wall segment is parallel to the inner sidewall (166) and the outer sidewall (176), Wherein, the second wall section (180) is connected to the transition wall section and the outer side wall (176).

6. The washroom system (150) according to claim 1, wherein The outer sidewall (176) is a portion of the outer sidewall of the inner chamber (100, 152).

7. The washroom system (150) according to claim 1, wherein The first lavatory unit (156) has a first length (192) and the second lavatory unit (158) has a second length (194), and wherein the first length (192) is greater than the second length (194).

8. The lavatory system (150) of claim 1, further comprising a dividing wall (196) within the interior chamber (182), wherein The partition wall (196) separates the first toilet unit (156) from the second toilet unit (158).

9. The washroom system (150) according to claim 8, wherein: The dividing wall (196) is movable between a closed position, in which the dividing wall divides the interior chamber (182) into the first lavatory unit (156) and the second lavatory unit (158), and an open position, in which the interior chamber (182) provides an enlarged and expanded single lavatory space.

10. The lavatory system (150) of claim 1, further comprising a barrier movably coupled to one of the first lavatory unit (156) and the second lavatory unit (158), wherein The barrier is movable between an extended position and a retracted position, wherein the barrier is disposed in front of an exit door (260) of the vehicle when in the extended position, and wherein the exit door (260) is visible within the interior compartment (100, 152) when the barrier is in the retracted position.

11. The lavatory system (150) of claim 1, further comprising a storage compartment extending outwardly from an outer sidewall of one or both of the first lavatory unit (156) and the second lavatory unit (158), wherein The storage compartment defines an interior storage space connected to the interior chamber (182).

12. The lavatory system (150) according to claim 11, wherein The storage compartment is at least part of a storage compartment assembly (118).

13. The lavatory system (150) of claim 11, further comprising a storage access door (324) disposed between the storage compartment and the interior chamber (182), wherein The storage access door (324) is configured to move between an open position and a closed position, wherein when the storage access door (324) is in the open position, the internal storage space is open to the internal chamber (182), and wherein when the storage access door (324) is in the closed position, the internal storage space is closed to the internal chamber (182).

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