Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B64—AIRCRAFT; AVIATION; COSMONAUTICS
  • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
  • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
  • B64D11/02—Toilet fittings

Definitions

• the present invention relates to the structure of an aircraft lavatory compartment.
• measures being considered include installing large lavatory cubicles that are slightly larger than standard lavatory cubicles, with external dimensions of 56 inches x 41 inches (1422 mm x 1041 mm) in plan view, or, as shown in Patent Document 1, converting the partition wall between two standard lavatory cubicles next to each other into a sliding door, so that when a wheelchair passenger wishes to use the lavatory cubicles, the sliding door can be opened to connect the two lavatory cubicles.
• Patent Document 1 allows the number of lavatory compartments to be maintained, but it has the following problems.
• the lavatory compartment door and sliding door can be locked in conjunction with each other. Specifically, when the lavatory compartment door is unlocked, the sliding door cannot be locked. Therefore, when none of the lavatory compartments are in use, the door is not locked from the inside, so passengers can enter the lavatory compartment in their wheelchairs, open the sliding door, and use the lavatory.
• the present invention was made in consideration of these issues, and aims to provide an aircraft lavatory compartment structure that ensures privacy while providing convenience for passengers who use wheelchairs, for example, without reducing the number of lavatory compartments.
• the main locking mechanism is a first operating member operable from one side of the first lavatory compartment and the second lavatory compartment; a second operating member operable from the other of the first lavatory compartment and the second lavatory compartment; a locking portion connected to the second operating member and movable between a locked position that prevents the movable wall from moving relative to the lavatory housing and an unlocked position that allows the movable wall to
• the present invention makes it possible to provide an aircraft lavatory compartment structure that ensures privacy while providing convenience for passengers using wheelchairs, for example, without reducing the number of lavatory compartments.
• FIG. 1 is an enlarged plan view of the vicinity of the lavatory of an aircraft.
• FIG. 2 is an enlarged plan view of the lavatory compartment structure according to the embodiment of the present invention, showing the movable wall in the closed position.
• FIG. 3 is an enlarged plan view of the lavatory compartment structure according to the embodiment of the present invention, showing the movable wall in the state where it begins to open.
• FIG. 4 is an enlarged plan view of the lavatory compartment structure according to the embodiment of the present invention, showing the movable wall moved to a position intermediate between the closed position and the open position.
• FIG. 5 is an enlarged plan view of the lavatory compartment structure according to the embodiment of the present invention, showing the movable wall in the open position.
• FIG. 1 is an enlarged plan view of the vicinity of the lavatory of an aircraft.
• FIG. 2 is an enlarged plan view of the lavatory compartment structure according to the embodiment of the present invention, showing the movable wall in the closed position.
• FIG. 3 is
• FIG. 6 is a view of the intermediate wall viewed in the direction of arrow A in FIG.
• FIG. 7 is an enlarged view of the upper end of the movable wall as seen from the second lavatory compartment side, showing the state in which the access door is closed.
• FIG. 8 is an enlarged view of the upper end of the movable wall as seen from the second lavatory compartment side, showing the access door in an open state.
• FIG. 9 is an enlarged view of the vicinity of the upper end of the movable wall as seen from the first lavatory compartment side, showing the state in which the access door is closed.
• FIG. 10 is an enlarged view of the upper end of the movable wall as seen from the first lavatory compartment side, showing the access door in an open state.
• FIG. 11 is an enlarged view of the vicinity of the lower end of the movable wall as seen from the second lavatory compartment side, showing the locked state of the second locking mechanism.
• FIG. 12 is an enlarged view of the vicinity of the lower end of the movable wall as seen from the second lavatory compartment side, showing the second locking mechanism in an unlocked state.
• FIG. 13 is a view showing the first locking mechanism disposed in the space inside the second plate as viewed from the first lavatory compartment side, showing the locked state.
• FIG. 14 is a diagram showing the first locking mechanism disposed in the space inside the second plate as viewed from the first lavatory compartment side, showing the unlocked state.
• FIG. 15A is a diagram showing the first locking mechanism arranged in the space inside the second plate as viewed from the second lavatory compartment side, showing the engaged state of the first operating member.
• Figure 15B is a diagram showing the first locking mechanism arranged in the space inside the second plate as seen from the second lavatory compartment side, showing the first operating member in a disengaged state.
• FIG. 16A is a diagram showing the first locking mechanism arranged in the space inside the second plate as viewed from the second lavatory compartment side, showing the locked state of the second operating member.
• Figure 16B is a diagram showing the first locking mechanism arranged in the space inside the second plate as viewed from the second lavatory compartment side, showing the second operating member in an unlocked state.
• FIG. 17 is a diagram showing the first locking mechanism as viewed from the second lavatory compartment side, illustrating the engaged state of the first operating member.
• Figure 18 is a diagram showing the first locking mechanism and the second locking mechanism as viewed from the first lavatory compartment side, showing the first operating member in a disengaged state and the second operating member in a locked state.
• FIG. 19 is a diagram showing the first locking mechanism and the second locking mechanism as viewed from the first lavatory compartment side, showing the unlocked state of the second operating member.
• Figure 20A is a diagram showing the third locking mechanism arranged in the space inside the first plate as viewed from the second lavatory compartment side, showing the locked state.
• FIG. 20B is a diagram showing the third locking mechanism located in the space inside the first plate as viewed from the second lavatory compartment side, showing the unlocked state.
• FIG. 21 is a diagram showing the third locking mechanism as seen from the second lavatory compartment side, showing the locked state.
• FIG. 22 is a diagram showing the third locking mechanism as seen from the second lavatory compartment side, showing the unlocked state.
• FIG. 23 is an enlarged view of the vicinity of the center of the side of the movable wall as seen from the first lavatory compartment side, with the access door in a closed position.
• FIG. 24 is an enlarged view of the vicinity of the center of the side of the movable wall as seen from the first lavatory compartment side, with the access door in an open position.
• Figure 25A is a diagram showing the fourth locking mechanism located in the space inside the first plate as viewed from the first lavatory compartment side, showing the locked state.
• Figure 25B is a diagram showing the fourth locking mechanism located in the space inside the first plate as viewed from the first lavatory compartment side, showing the unlocked state.
• Figure 1 is an enlarged plan view of the lavatory and its surroundings on aircraft 1.
• the direction of flight of the aircraft is indicated by arrow F in Figure 1
• the width direction is indicated by arrow W.
• seat units 2 In the cabin of aircraft 1, seat units 2, each with three seats in the width direction W, are arranged in three rows in the width direction W, with vertical aisles 3 between the seat units 2.
• Aircraft doors 4 are located on both sides of the aircraft 1, and in the area between the two aircraft doors 4, the spacing between the seat units 2 in the direction of travel F is relatively wide, forming an aisle connecting the aircraft doors 4 on both sides; this aisle is called a cross aisle.
• a galley G is located in the cross aisle.
• a lavatory compartment structure 10 is installed adjacent to the aircraft instead of a seat unit 2. The lavatory compartment structure 10 can also be installed in other locations.
• the lavatory compartment structure 10 has two lavatory compartments, a first lavatory compartment 11 and a second lavatory compartment 12, aligned along the width direction W.
• the first lavatory compartment 11 has a rear wall 11a, a front wall 11e, a side wall 11c, a ceiling 21A (see FIG. 6), and a floor 22A, which are joined together to form a first housing enclosing the first lavatory compartment 11.
• the second lavatory compartment 12 has a rear wall 12a, a front wall 12e, a side wall 12c, a ceiling 21B (see FIG.
• the first and second housings are carried separately into the aircraft 1 body, joined with the intermediate wall 14 in between, and installed as the hexahedral lavatory compartment structure 10. At this time, the first and second housings are joined together to form the lavatory housing.
• the floors 22A and 22B of the lavatory housing are each fixed to the aircraft body at four locations, and the ceilings 21A and 21B are each fixed to the aircraft body at one location. In the following description, it is assumed that the ceiling 21 is formed by connecting and integrating the ceiling 21A and the ceiling 21B, and that the floor 22A and the floor 22B are connected and integrating the ceiling 21.
• the first lavatory cubicle 11 is provided with a toilet 11b adjacent to the rear wall 11a, and a sink 11d is provided on the side wall 11c opposite the second lavatory cubicle 12.
• the sink 11d extends from the rear wall 11a to the front wall 11e facing the corridor 3.
• the front wall 11e extends a predetermined distance from the side wall 11c parallel to the rear wall 11a and can be connected to a lavatory door 11f.
• the lavatory door 11f is connected to the support wall 14c by a hinge and can be rotated to open and close between the front wall 11e and the support wall 14c.
• the second lavatory cubicle 12 is provided with a toilet 12b adjacent to the rear wall 12a aligned with the rear wall 11a, and a sink 12d on the side wall 12c parallel to the side wall 11c opposite the first lavatory cubicle 11.
• the sink 12d extends from the rear wall 12a to the front wall 12e facing the aisle 3.
• the front wall 12e extends a predetermined distance from the side wall 12c opposite the front wall 12e, parallel to the rear wall 12a, and can be connected to a lavatory door 12f.
• the lavatory door 12f is connected to the support wall 14c by a hinge and can be rotated to open and close between the front wall 12e and the support wall 14c.
• the lavatory cubicles 11 and 12 may be symmetrical with respect to the intermediate wall 14 shown in Figure 2, with the toilet and sink positioned symmetrically with respect to the intermediate wall 14.
• the intermediate wall 14 separates the lavatory cubicles 11 and 12.
• the intermediate wall 14 includes a fixed wall 14a that extends parallel to the side walls 11c and 12c and is fixedly connected to the rear walls 11a and 12a, a movable wall 14b that is movable relative to the fixed wall 14a, and a support wall 14c on which the edge of the movable wall 14b is pivotally supported.
• Figure 6 is a view of the intermediate wall 14 viewed in the direction of arrow A in Figure 2, but the first locking mechanism 15, second locking mechanism 16, third locking mechanism 17, and fourth locking mechanism 18 are shown schematically.
• the upper and lower ends of the fixed wall 14a and support wall 14c are fixed to the ceiling 21 and floor 22.
• the first locking mechanism 15 and second locking mechanism 16 constitute the main locking mechanism
• the third locking mechanism 17 and fourth locking mechanism 18 constitute the secondary locking mechanism.
• the movable wall 14b is a so-called accordion-type folding door and has a hexagonal first plate 14b1, a rectangular second plate 14b2, a first hinge 14b3 that rotatably connects the first plate 14b1 and the second plate 14b2 about an axis perpendicular to the floor 22, and a second hinge 14b4 that rotatably connects the second plate 14b2 and the support wall 14c about an axis perpendicular to the floor 22.
• the opposing edges of the first plate 14b1 and the second plate 14b2 extend vertically from the ceiling 21 to the floor 22.
• the first plate 14b1 and the second plate 14b2 can rotate relative to each other via the first hinge 14b3, protruding toward the second lavatory compartment 12, and can be folded so that they approach each other.
• the second plate 14b2 can also rotate relative to the support wall 14c via the second hinge 14b4, and by rotating, the second plate 14b2 can be moved to a position close to the lavatory door 12f. This allows the movable wall 14b to move between the closed position shown in Figure 2 and the open position shown in Figure 5.
• the first plate 14b1 of the movable wall 14b is positioned with no gap between it and the edge of the fixed wall 14a, the ceiling 21, and the floor 22, and the second plate 14b2 is positioned with no gap between it and the edge of the support wall 14c, the ceiling 21, and the floor 22.
• a first locking mechanism 15 is disposed near the upper end of the second plate 14b2, and a second locking mechanism 16 is disposed near the lower end of the second plate 14b2. Furthermore, a third locking mechanism 17 is disposed near the upper end of the first plate 14b1, and a fourth locking mechanism 18 is disposed near the edge of the first plate 14b1.
• Figures 7 and 8 are enlarged views of the area near the upper end of the movable wall 14b as viewed from the second lavatory compartment 12 side.
• Figures 9 and 10 are enlarged views of the area near the upper end of the movable wall 14b as viewed from the first lavatory compartment 11 side.
• Figures 11 and 12 are enlarged views of the area near the lower end of the movable wall 14b as viewed from the second lavatory compartment 12 side.
• the second panel 14b2 has a small first access door 14b5 near the upper end of the second panel 14b2 adjacent to the first panel 14b1 on the side of the second lavatory compartment 12.
• the first panel 14b1 also has a small second access door 14b6 near the upper end of the first panel 14b1 adjacent to the second panel 14b2 on the side of the second lavatory compartment 12.
• the first access door 14b5 and the second access door 14b6 release their locking mechanisms (not shown), opening them relative to the second plate 14b2 and the first plate 14b1 as shown in FIG. 8, allowing cabin attendants and others to access the interior. Furthermore, by closing the first access door 14b5 and the second access door 14b6 relative to the second plate 14b2 and the first plate 14b1, respectively, and then pushing push buttons B1 and B2, respectively, the locking mechanisms are activated. As a result, the first access door 14b5 and the second access door 14b6 are maintained in a closed state relative to the second plate 14b2 and the first plate 14b1 as shown in FIG. 7, preventing cabin attendants and others from accessing the interior.
• a first locking mechanism 15 is located in the space inside the first access door 14b5, and a third locking mechanism 17 is located in the space inside the second access door 14b6.
• the second plate 14b2 has a small third access door 14b7 near the upper end of the second plate 14b2 adjacent to the first plate 14b1 on the side of the first lavatory compartment 11.
• the third access door 14b7 is arranged to correspond to the first access door 14b5. That is, the first locking mechanism 15 is located inside the second plate 14b2 between the first access door 14b5 and the third access door 14b7.
• the locking mechanism (not shown) is released and the third access door 14b7 is placed in an open state relative to the second plate 14b2 as shown in FIG. 10, allowing cabin attendants and others to access the interior.
• An inspection door 14b8 may also be installed on the first plate 14b1 on the first lavatory compartment 11 side so that it can be opened and closed in correspondence with the second access door 14b6.
• Figures 13 and 14 are diagrams showing the first locking mechanism 15 arranged in the space inside the second plate 14b2 as viewed from the first lavatory compartment 11 side.
• Figures 15A, 15B, 16A, and 16B are diagrams showing the first locking mechanism 15 arranged in the space inside the second plate 14b2 as viewed from the second lavatory compartment 12 side.
• Figure 17 is a diagram showing the first locking mechanism 15 as viewed from the second lavatory compartment 12 side
• Figures 18 and 19 are diagrams showing the first locking mechanism 15 and the second locking mechanism 16 as viewed from the first lavatory compartment 11 side.
• the first locking mechanism 15 has a pivot shaft 15a that is rotatable relative to the second plate 14b2, a front handle 15b fixed to the pivot shaft 15a on the side of the second lavatory compartment 12, and a locking portion 15c that rotates together with the front handle 15b.
• the locking portion 15c has a disk-shaped base 15d and a protrusion 15f that protrudes radially from the base 15d.
• the front handle 15b and the locking portion 15c constitute the first operating member.
• the first locking mechanism 15 has a pivot shaft 15g that is installed as a shift from the pivot shaft 15a toward the ceiling 21 and is rotatable relative to the second plate 14b2, a rear handle 15h fixed to the pivot shaft 15g on the first lavatory compartment 11 side, and a locking portion 15i that rotates together with the rear handle 15h.
• the locking portion 15i has a disk-shaped base 15j, an engagement key 15k that extends long from the base 15j in a tangential direction to the outer periphery, and a claw portion 15m that extends short in a tangential direction to the outer periphery at a 90-degree phase with the engagement key 15k.
• the base 15j is formed with a raised portion 15n that protrudes in the axial direction of the pivot shaft 15g.
• a slit-shaped engagement recess 21a is formed in the ceiling 21 corresponding to the engagement key 15k.
• the rear handle 15h and the locking portion 15i constitute the second operating member, and the engagement key 15k constitutes the locking portion.
• the second operating member may also include a link plate 16b and a rod 16a, which will be described later.
• the second locking mechanism 16 has a rod 16a that extends through the first plate 14b1 along the height direction of the first plate 14b1, and a link plate 16b that is fixedly connected to the upper end of the rod 16a.
• the link plate 16b has an elongated hole 16c that extends away from the rod 16a.
• a pivot shaft 15g and a raised portion 15n are housed within the elongated hole 16c so that they can move relative to each other.
• the raised portion 15n presses against the inner periphery of the elongated hole 16c depending on the rotation angle of the base 15j, thereby allowing the rod 16a to be raised and lowered via the link plate 16b.
• a slit-shaped engagement recess 22a is formed in the floor 22 corresponding to the lower end of the rod 16a.
• the first locking mechanism 15 and the second locking mechanism 16 work in conjunction with each other. This interlocking mechanism will be explained in detail below. As shown in Figure 18, when the rear handle 15h is rotated to a position (locked position) where the engagement key 15k enters the engagement recess 21a, the claw portion 15m is in a horizontal position. In this state, the rod 16a descends via the link plate 16b, and its lower end enters the engagement recess 22a ( Figure 11). In other words, the first locking mechanism 15 and the second locking mechanism 16 are in a locked state, and the first plate 14b1 is locked to the ceiling 21 and floor 22.
• the front handle 15b can be rotated so that the protrusion 15f faces straight up.
• the tip of the protrusion 15f then abuts the side edge of the claw 15m, preventing the base 15j and back handle 15h from rotating in the direction that would release the locked state.
• the first locking mechanism 15 and the second locking mechanism 16 are maintained in their locked state (an engaged state in which the first operating member engages with the second operating member). Therefore, unless the front handle 15b is rotated, the back handle 15h cannot be rotated, and the first locking mechanism 15 and the second locking mechanism 16 will not be released from their locked state.
• the convex portion 15f interferes with the engagement key 15k, preventing the front handle 15b from returning to its original position.
• the first operating member may be able to transition from the disengaged state to the engaged state only when the engaging portion is in the locked position.
• Figures 20A and 20B are diagrams showing the third locking mechanism 17 located in the space inside the first plate 14b1 as viewed from the second lavatory compartment 12 side.
• Figures 21 and 22 are diagrams showing the third locking mechanism 17 as viewed from the second lavatory compartment 12 side.
• the third locking mechanism 17 has a pivot shaft (not shown) that is rotatable relative to the first plate 14b1, a handle 17b fixed to the pivot shaft on the second lavatory compartment 12 side, and a cam portion 17c that rotates together with the handle 17b.
• the cam portion 17c has a disk-shaped base portion 17d and an engagement key 17f that extends tangentially from the base portion 17d to the outer periphery.
• a slit-shaped engagement recess 21b is formed in the ceiling 21 corresponding to the engagement key 17f.
• the tip of the engagement key 17f faces straight up and enters the engagement recess 21b. This prevents the first plate 14b1 from moving relative to the ceiling 21.
• the engagement key 17f faces horizontally and disengages from the engagement recess 21b, allowing the first plate 14b1 to move relative to the ceiling 21.
• Figures 23 and 24 are enlarged views of the center of the side of the movable wall 14b as viewed from the first lavatory compartment 11 side.
• Figures 25A and 25B are views showing the fourth locking mechanism 18 located in the space inside the first plate 14b1 as viewed from the first lavatory compartment 11 side.
• the first plate 14b1 has a small fourth access door 14b9 near the side edge adjacent to the support wall 14c on the first lavatory compartment 11 side.
• the fourth access door 14b9 releases a locking mechanism (not shown) and opens relative to the first plate 14b1 as shown in Figure 24, allowing cabin attendants and others to access the interior.
• the locking mechanism is activated and the fourth access door 14b9 is maintained in a closed state relative to the first plate 14b1 as shown in Figure 23, preventing cabin attendants and others from accessing the interior.
• a fourth locking mechanism 18 is located in the space inside the fourth access door 14b9.
• the fourth locking mechanism 18 has a similar configuration to the third locking mechanism 17. More specifically, in Figures 25A and 25B, the fourth locking mechanism 18 has a pivot shaft (not shown) that is rotatable relative to the first plate 14b1, a handle 18b fixed to the pivot shaft on the first lavatory compartment 11 side, and a cam portion 18c that rotates together with the handle 18b.
• the cam portion 18c has an engagement key 18f that extends tangentially to the outer periphery.
• a slit-shaped engagement recess 14c1 is formed in the fixed wall 14a corresponding to the engagement key 18f.
• the engagement key 18f has a hook-shaped tip, and it is preferable that the hook-shaped tip can enter and exit a horizontal groove formed inside the engagement recess 14c1 as it rotates.
• the space within the lavatory doors 11f, 12f is relatively small, making it difficult for wheelchair-using passengers to enter and transfer from their wheelchair to the toilet. Therefore, in this embodiment, the movable wall 14b of the intermediate wall 14 is moved to open up the space between the first lavatory compartment 11 and the second lavatory compartment 12, creating a larger space.
• a passenger who enters the first lavatory compartment 11 in a wheelchair can pass through the open intermediate wall 14 and transfer from their wheelchair to the toilet 12b.
• a cabin attendant or a caregiver for a wheelchair-using passenger
• can memorize the necessary unlocking procedure allowing the middle wall 14 to be easily opened. Furthermore, there is no risk of ordinary passengers who are unaware of the unlocking procedure opening the middle wall 14, ensuring privacy.
• the opening modes of the middle wall 14 are explained below.
• the handle 17b of the third locking mechanism 17 located behind it becomes accessible, so the cabin attendant operates the handle 17b and rotates it clockwise from the position shown in Figure 13 to the position shown in Figure 14. This disengages the engagement key 17f from the engagement recess 21b, unlocking the third locking mechanism 17. The cabin attendant then returns the first access door 14b5 and second access door 14b6 to their original positions.
• the cabin attendant then exits the second lavatory compartment 12 and enters the first lavatory compartment 11, presses the push button B3 shown in Figure 9, and opens the third access door 14b7 as shown in Figure 10.
• the rear handle 15h of the first locking mechanism 15 behind it becomes accessible, so the cabin attendant operates the rear handle 15h and rotates it clockwise from the position shown in Figure 18 to the position shown in Figure 19. This disengages the engagement key 15k from the engagement recess 21a, and the lower end of the rod 16a disengages from the engagement recess 22a, unlocking the first locking mechanism 15 and the second locking mechanism 16. The cabin attendant then returns the third access door 14b7 to its original position.
• the handle 18b of the fourth locking mechanism 18 located behind it becomes accessible, so the cabin attendant operates the handle 18b and rotates it clockwise from the position shown in Figure 25A to the position shown in Figure 25B. This disengages the engagement key 18f from the engagement recess 14c1, unlocking the fourth locking mechanism 18. The cabin attendant then returns the fourth access door 14b9 to its original position.
• the first locking mechanism 15, second locking mechanism 16, third locking mechanism 17, and fourth locking mechanism 18 are all unlocked.
• the cabin attendant can push the unlocked movable wall 14b from the first lavatory compartment 11 side toward the second lavatory compartment 12 side, and fold the movable wall 14b as shown in Figures 3 to 5, thereby opening the gap between the fixed wall 14a and the support wall 14c.
• the lavatory door 12f of the second lavatory compartment 12 is adjacent to the folded movable wall 14b, but the first lavatory compartment 11 can be accessed through the lavatory door 11f of the first lavatory compartment 11.
• a passenger in a wheelchair can enter the first lavatory compartment 11 through the open lavatory door 11f.
• the passenger can move to the second lavatory compartment 12 side through the gap between the fixed wall 14a and the support wall 14c and sit on the toilet 12b.
• the cabin attendant closes the lavatory door 11f, the large space connecting the first lavatory compartment 11 and the second lavatory compartment 12 becomes an enclosed space, ensuring privacy.
• the first lavatory compartment 11 and the second lavatory compartment 12 when used by general passengers, can be used independently, and when a wheelchair-using passenger uses the lavatory, the movable wall 14b can be folded down to form a large space connecting the first lavatory compartment 11 and the second lavatory compartment 12. This allows for effective use of the limited space on the aircraft 1 and ensures convenience for passengers.
• the movable wall 14b cannot be moved unless the unlocking procedures for at least the first locking mechanism 15 and the second locking mechanism 16 are known. This prevents passengers from accidentally moving the movable wall 14b, ensuring privacy for the first lavatory compartment 11 and the second lavatory compartment 12.
• the locking mechanism may be released by inverting the intermediate wall 14 and having the cabin attendant operate it on the first lavatory compartment 11 side and then on the second lavatory compartment 12 side. Also, only the first locking mechanism 15 and the third locking mechanism 17 or the fourth locking mechanism 18 may be provided.
• first lavatory compartment enclosed in a first enclosure; a second lavatory compartment adjacent to the first lavatory compartment and enclosed by a second enclosure; a movable wall movable between a closed position that closes the gap between the first lavatory cubicle and the second lavatory cubicle and an open position that opens the gap between the first lavatory cubicle and the second lavatory cubicle; a main locking mechanism for the movable wall; the first housing and the second housing form a lavatory housing;
• the main locking mechanism is a first operating member operable from one side of the first lavatory compartment and the second lavatory compartment; a second operating member operable from the other of the first lavatory compartment and the second lavatory compartment; a locking portion connected to the second operating member and movable between a locked position that prevents the movable wall from moving relative to the lavatory housing and an unlocked position that allows the movable wall to move relative to the lavatory housing;
• the first operating member is capable of transitioning from the disengaged state to the engaged state when the engaging portion is in the locked position;
• the movable wall has openable and closable access doors on both sides, and the main locking mechanism is disposed between the pair of access doors; By opening one of the access doors, an operator can access the first operating member, and by opening the other access door, an operator can access the second operating member.
• the first operating member has a rotatable front handle and a protrusion that rotates together with the front handle
• the second operating member has a rear handle that can be shifted and rotated relative to a rotation axis of the front handle, and a claw portion that rotates together with the rear handle
• the locking portion is an engagement key that rotates together with the rear handle and can be engaged with and disengaged from an engagement recess of the lavatory housing
• the front handle is rotated to bring the protrusion into contact with the claw portion, thereby transitioning to the engaged state, and the protrusion is separated from the claw portion, thereby transitioning to the disengaged state.
• the second operating member further includes a link plate connected to the rear handle and a rod connected to the link plate, The rod moves in the axial direction by the driving force transmitted through the link plate by rotating the rear handle, and can be engaged with and disengaged from the engaging recess of the lavatory housing located on the opposite side of the movable wall from the engaging portion in the vertical direction.
• a fourth aspect of the aircraft lavatory compartment structure characterized in that:
• the movable wall is disposed between a fixed wall connected to the lavatory housing and a support wall, and includes a first plate and a second plate rotatable relative to the first plate, and the second plate is rotatably connected to the support wall.
• the aircraft lavatory compartment structure according to any one of the first to fifth aspects,
• the main locking mechanism is disposed on the second plate, and a sub-locking mechanism, separate from the main locking mechanism, is disposed on the first plate to prevent the first plate from moving relative to the lavatory housing.
• a sixth aspect of the aircraft lavatory compartment structure characterized in that:

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