Translational barrier for aircraft

Abstract

A barrier door system for controlling movement of a person through an opening in a cabin area of an aircraft. The barrier door system includes a track having an elongated shape, the track having a first end and a second end. The barrier door includes: a plurality of panels pivotally connected together; and one or more pins extending outwardly from the top edge of the barrier door and configured to engage the track. The panels are configured to pivot together in a collapsed configuration at a stowed position and configured to pivot outwardly away from the rail in an extended configuration to extend across the opening at a deployed position.

Description

Technical Field

[0001] The present disclosure relates generally to the field of aircraft, and more particularly, to a barrier door system that prevents access to a cockpit of an aircraft. Background Art

[0002] An aircraft has a cockpit that includes flight instruments, instrument panels, and various controls that enable the flight crew to operate the aircraft. The cockpit is located near the front of the aircraft and is typically a separate compartment away from the cabin area where passengers sit during flight. A cockpit door further separates the cockpit from the cabin area.

[0003] The cockpit door is closed and locked during flight. This allows the flight crew to focus on operating the aircraft and prevents unauthorized personnel from entering the cockpit. However, the cockpit door may be opened during flight for a variety of reasons. One situation is when the flight crew uses the lavatory located in the cabin area of ​​the aircraft. Other situations are when food and / or drinks prepared in the galley in the cabin area are delivered to the flight crew in the cockpit and when the flight crew leaves the cockpit during rest periods.

[0004] Opening the cockpit door may provide an unauthorized person with access to the cockpit.

[0005] There is a need for a physically installed system that prohibits and / or substantially delays people in the cabin area from reaching the cockpit door when the cockpit door is open. The delay in their movement toward the cockpit will allow the cockpit door to close and lock before people reach the door. Summary of the invention

[0006] One aspect relates to a barrier door system for controlling the movement of people through an opening in a cabin area of ​​an aircraft. The barrier door system includes: a track having an elongated shape, including a first end configured to be positioned away from the opening and a second end configured to be positioned proximate to the opening. The barrier door includes: a plurality of panels pivotably connected together; and one or more pins extending outwardly from a top edge of the barrier door and configured to engage the track. The plurality of panels are configured to pivot together into a folded configuration in a stowed position. The plurality of panels are configured to pivot outwardly away from the track into an extended configuration in a deployed position to extend across the opening.

[0007] In another aspect, one or more pins extend outwardly from a single panel of the plurality of panels.

[0008] In another aspect, the track includes: a top side; a first lateral side and a second lateral side, the first lateral side and the second lateral side being spaced apart and extending from the top side; and an opening formed between a distal end of the first lateral side and a distal end of the second lateral side; wherein the opening has a first width and the one or more pins have a second width, wherein the second width is greater than the first width to keep the one or more pins engaged with the track when the one or more pins move between a stowed position and a deployed position.

[0009] In another aspect, the notch is located in the first lateral side of the track and closer to the second end than the first end, wherein a width of the notch is greater than the second width to enable one of the plurality of pins to move through the notch when moving the barrier door from the folded configuration to the extended configuration.

[0010] In another aspect, the plurality of panels are aligned parallel to one another in the folded configuration.

[0011] In another aspect, the lock is located on a front side of the barrier door and away from a rear side of the barrier door, wherein the lock is configured to retain the barrier door in the extended configuration.

[0012] In another aspect, wheels are mounted to the barrier door and extend outwardly from a bottom edge of the barrier door.

[0013] One aspect relates to a barrier door system for controlling the movement of people through an opening in a cabin area of ​​an aircraft. The barrier door system includes: a track including an interior space positioned within a body. A barrier door is mounted to the track, wherein the barrier door includes: a first panel; one or more additional panels connected to the first panel; and a first pin and a second pin extending outward from a top edge of the first panel, wherein the first pin and the second pin are sized to fit within the interior space of the track. The barrier door is configured to move along the track and can be configured between a folded configuration and an extended configuration. The folded configuration includes: the first pin and the second pin are both located within the interior space; and the first panel and the one or more additional panels are folded together. The extended configuration includes: the first pin is located within the interior space; and the second pin is located outside the interior space and away from the track, wherein the barrier door pivots relative to the track, and wherein the first panel and the one or more additional panels unfold to extend across the opening.

[0014] In another aspect, the length of the first pin is greater than the length of the second pin, and the first pin extends outwardly a distance from the top edge of the first panel greater than the distance the second pin extends outwardly from the top edge of the first panel.

[0015] In another aspect, the first panel and the one or more additional panels are pivotally connected together, and the first panel and the one or more additional panels are in an overlapping arrangement in the folded configuration and in an end-to-end arrangement in the extended configuration.

[0016] In another aspect, a notch extends through the body of the track, the notch having a width greater than a width of the second pin such that the second pin moves through the notch when moving the barrier door from the folded configuration to the extended configuration.

[0017] In another aspect, the body of the track includes: a top side; a first lateral side and a second lateral side, the first lateral side and the second lateral side are spaced apart and extend from the top side; and an opening formed between a distal end of the first lateral side and a distal end of the second lateral side; and the recess extends through the first lateral side.

[0018] In another aspect, the first pin and the second pin each include a neck extending outward from a top edge of the first panel and a head positioned at one end of the neck, wherein a width of the head is greater than a width of the neck.

[0019] In another aspect, the wheels are positioned along a bottom edge of the barrier door.

[0020] In another aspect, the lock is located on the barrier door, wherein the lock is exposed only on the front side of the barrier door.

[0021] One aspect relates to a method of controlling passenger movement through an opening in a cabin area of ​​an aircraft. The method includes positioning a barrier door mounted to a track at a stowed position along the track away from the opening, wherein the barrier door is in a folded configuration; while the barrier door remains engaged with the track, translating the barrier door along the track away from the stowed position to a deployed position; and after moving the barrier door to the deployed position, pivoting the barrier door relative to the track and extending the barrier door to an extended configuration and extending the barrier door across the opening.

[0022] In another aspect, the method further includes pivoting a first panel of the barrier door relative to the track and moving a second pin extending outwardly from the first panel through a notch in the track while maintaining engagement of a first pin extending from the first panel with the track.

[0023] In another aspect, the method further includes pivoting the barrier door to an extended configuration across the opening and aligning the barrier door perpendicular to the track.

[0024] In another aspect, the method further includes sliding the barrier door from a first end of the track at the stowed position to a second end of the track at the deployed position.

[0025] In another aspect, the method further includes sliding the barrier door from a stowed position proximate the cockpit to a deployed position forward of the passenger section of the cabin area.

[0026] The features, functions, and advantages that have been discussed can be achieved independently in various aspects or may be combined in yet other aspects, further details of which can be seen with reference to the following description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is an isometric view of the aircraft.

[0028] Figure 2 is a schematic diagram of the interior of an aircraft including the barrier door system.

[0029] Figure 3 is a perspective view of a barrier door system positioned proximate a cockpit door within an aircraft interior.

[0030] Figure 4 is a schematic diagram of a barrier door system positioned at an opening in an aircraft interior.

[0031] Figure 5 is a schematic diagram of the interior of an aircraft including the barrier door system.

[0032] Figure 6 is a side view of the barrier door in the extended configuration.

[0033] Figure 7 is a schematic side view of a pin extending from a panel of a barrier door and engaged in a track.

[0034] Figure 8 is a partial isometric view of a pair of pins extending from the top edge of a panel of a barrier door.

[0035] Fig. 9 is a top view of the barrier door in a folded configuration.

[0036] FIG. 10A to FIG. 10E is a schematic diagram showing a barrier door deployed across an opening in an aircraft.

[0037] Fig.11 is a flow chart of a method of controlling the movement of passengers through an opening in a cabin area of ​​an aircraft. DETAILED DESCRIPTION

[0038] Figure 1 and Figure 2An aircraft 100 configured to transport passengers is shown. The aircraft 100 includes a fuselage 101 having a cockpit 110 positioned forward and a cabin area 103 positioned rearward. The cabin area 103 is configured to accommodate passengers. The dimensions of the cockpit 110 and the cabin area 103 may vary depending on the aircraft 100. One or more exterior doors 104 enable passengers and flight crew to enter and exit the fuselage 101.

[0039] Cockpit 110 includes one or more seats 111 for flight personnel, including but not limited to the pilot, co-pilot, and other authorized personnel. Various controls and instrument panels (not shown) are positioned for use by the flight personnel to control aircraft 100 .

[0040] The cabin area 103 is located along the fuselage 101 to the rear of the cockpit 110. The cabin area 103 includes a passenger section 121 having seats 105 arranged in rows along one or more aisles 106. In some examples, such as commercial airliners, the seats 105 extend throughout the cabin area 103. In other examples, where the aircraft 100 is used for cargo transportation, a limited number of seats 105 are located in the cabin area 103.

[0041] Monument 112 is mounted to a structural member of aircraft 100 within fuselage 101. Monument 112 is shaped and sized for function, examples of which include, but are not limited to, galleys, lavatories, walls, and storage units. In some examples, monument 112 is shaped and sized to extend from the floor to the ceiling of cabin area 103 and between wall 114 of fuselage 101 and aisle 106.

[0042] In some examples, the cabin area 103 includes a vestibule 120 located between the cockpit 110 and the passenger section 121. In some examples, the vestibule 120 is located at one of the plurality of exterior doors 104 and includes a space that enables passengers to enter and exit the aircraft 100. Additionally or alternatively, the vestibule 120 provides an area for flight crew to sit during takeoff and landing, an area for preparing food / drinks for the flight crew, and an area for passengers to access lavatories. Figure 2 A vestibule 120 is included having a pair of galley monuments 112a, 112b, a lavatory monument 112c and a storage monument 112d. In other examples, the cabin area 103 does not include a vestibule, wherein a passenger section 121 including seats 105 extends immediately behind the cockpit 110.

[0043] One or more openings 113 are formed in the cabin area 103. Figure 2In some examples shown, openings 113 are formed between the structures 112. The openings 113 form walkways for passengers and flight personnel to move within the cabin area 103. Figure 2 A layout having a pair of openings, opening 113a formed closer to cockpit 110 and opening 113b closer to passenger section 121, is shown. Other examples include openings 113 formed between various components such as monuments 112, walls 114 of fuselage 101, and seats 105.

[0044] like Figure 2 and Figure 3 As shown, the cockpit door 90 separates the cockpit 110 from the cabin area 103. In some examples, the cockpit door 90 separates the cockpit 110 from the vestibule 120. The cockpit door 90 prevents unauthorized persons from entering the cockpit 110 from the cabin area 103. Figure 3 As shown, the cockpit door 90 includes a lock 91 configured to secure the door 90 in a closed position. The lock 91 may include a variety of configurations for unlocking, such as a magnetic card reader and an input button. The cockpit door viewing hole 92 enables flight personnel in the cockpit 110 to observe the cabin area 103 without opening the door 90.

[0045] The present application relates to a barrier door system 10 configured to delay and / or prevent passengers in a cabin area 103 from moving through an opening 113 and into a cockpit 110. The barrier door system 10 includes a barrier door 20 that can be deployed across the opening 113. The barrier door 20 is used to delay the movement of people from the cabin area 103 toward the cockpit 110.

[0046] Figure 4 Schematically illustrated is a barrier door system 10 including a barrier door 20 that can move between a stowed position (shown in dashed lines) and a deployed position (shown in solid lines) along a track 40. In the stowed position, the barrier door 20 is positioned away from the opening 113. In the deployed position, the barrier door 20 is positioned across the opening 113. In some examples, the barrier door 20 can be arranged in a folded configuration to have a smaller overall size, thereby facilitating storage when in the stowed position. The barrier door 20 can also be arranged in an extended configuration at the deployed position to extend across the opening 113. The barrier door 20 can be configured to engage with a mounting portion 130 located on the other side of the opening 113. In other examples, the barrier door 20 has the same configuration in the stowed position and the deployed position. The track 40 is mounted to the structure of the aircraft 100 and extends between the stowed position and the deployed position. The track 40 can be mounted to a variety of structures, including but not limited to the ceiling 108, the building 112, and the wall 114.

[0047] The aircraft 100 is configured to deploy the barrier door 20 across the one or more openings 113 . Figure 2 An example is shown where the track 40 extends along a forward section of the cabin area 103 at the vestibule 120. The barrier door 20 is movable between a stowed position adjacent the cockpit door 90 and a deployed position spanning an opening 113b formed between the monuments 112b, 112d. Figure 5 An example is shown where the door 20 extends across an opening 113 formed between the monuments 112b, 112c in the deployed position. In some examples, the barrier door 20 is configured to extend across two or more openings 113 simultaneously in the extended configuration.

[0048] Figure 6 The barrier door 20 in the extended configuration is shown. The barrier door 20 includes a panel 21, which is pivotally connected together to move between a stowed position and an extended position. The panel 21 includes a top edge 22, a bottom edge 23 and a lateral edge 24. The size and shape of the panel 21 can be changed to conform to the shape of the opening 113. Different panels 21 can include the same or different shapes and / or sizes. The panel 21 can be constructed of a variety of different materials. In some instances, the panel 21 is constructed of a rigid planar member, and the rigid planar member is constructed of a variety of materials including but not limited to plastic and aluminum. In some instances, the panel 21 includes a frame constructed of a rigid elongated member and a fabric curtain attached to the elongated member.

[0049] A window 25 may be located in one or more panels 21. In some examples, the window 25 comprises a transparent sheet such as plexiglass. In other examples, the window 25 is open. A handle 26 is included in one or more panels 21 to allow the barrier door 20 to be moved between the folded configuration and the extended configuration and between the stowed position and the deployed position. In some examples, the handle 26 comprises an opening extending through a central portion of the panel 21 or comprises a cutout along one side of the panel 21. This allows the faces of the panels 21 to abut together when folded in the stowed position (see Fig. 9 ). In other examples, the handle 26 is attached to one or more sides of the panel 21 and extends outwardly from one or more sides of the panel. In the multi-panel barrier door 20, one or more hinges 27 enable the panel 21 to pivotally move.

[0050] In some examples, one or more locks 28 are used to fix the barrier door 20 in the extended configuration. In some examples, the lock 28 can only be approached from the front side of the barrier door 20 (i.e., the side facing the cockpit 110 when in the deployed position). This positioning allows flight personnel to access the lock 28 and prevents passengers from the passenger section 121 from accessing the lock. The lock 28 is configured to engage with one or more of the building 112, the floor 107, the ceiling 108 or other aircraft structures to fix the deployed position. In some examples, the lock 28 includes a hook that can rotate between the locked position and the unlocked position and an adjuster that is rotated by the flight personnel to adjust the positioning. In another example, the lock 28 includes a plunger that extends outward from the panel 21 to engage with the receiving portion in the building 112. In another example, the lock 28 includes an elongated member, such as a chain, cable, or line connected to a buckle.

[0051] Wheels 29 are mounted to one or more panels 21 at the bottom edge 23. The wheels 29 are configured to enable the barrier door 20 to move along the floor 107 of the cabin area 103. In some examples, the wheels 29 are pivotally mounted to provide various movements between the folded configuration and the extended configuration as well as translation along the track 40. In some examples, the barrier door 20 is mounted to the aircraft 100 only by the pins 30 that engage the track 40. The barrier door 20 is not mounted to the floor 107, but contacts the floor 107 via the wheels 29.

[0052] The barrier door 20 is engaged with the track 40 by one or more pins 30. The pins 30 extend outwardly from the top edge 22 or the bottom edge 23 of one or more panels 21. In one example, the pins 30 extend outwardly from a single panel 21. In other examples, the pins 30 extend outwardly from multiple panels 21.

[0053] Figure 7 A schematic diagram of a pin 30 extending outward from the top edge 22 of the panel 21 is shown. The pin 30 includes a head 31 and a neck 32. The head 31 includes an enlarged width W1 that is greater than the width of the neck 32 and greater than the width W2 of the opening 45 in the track body 48. This retains the head 31 in the track 40 as it translates along the track 40. In some examples having multiple pins 30, each of the multiple pins 30 has the same shape and size. In examples such as Figure 8 In other examples shown, two or more of the plurality of pins 30 have different shapes and / or sizes. This allows one or more pins 30 to remain in the track 40 and one or more pins 30 to leave the track 40 when the barrier door 20 is deployed. Figure 8 A pin 30 a including two heads 31 is included, and the length of the pin is longer than the length of a pin 30 b including a single head 31 .

[0054] Tracks 40 enable barrier door 20 to translate between a stowed position and a deployed position. Figure 3 As shown, the track 40 includes an elongated length member having a first end 41 positioned near the stowed position and a second end 42 positioned near the deployed position. In some examples, the first end 41 and the second end 42 are covered to prevent the pin 30 from coming out of the interior of the track 40.

[0055] Track 40 is shaped so that pin 30 can be engaged and translated along the length. Figure 3 and Figure 7 As shown, the track 40 includes a track body 48 formed of one or more pieces. The track body 48 includes a top side 43 that is configured to be mounted to the aircraft 100, such as to the ceiling 108. The track body 48 also includes two opposing lateral sides having distal ends that are spaced apart to form an opening 45. The opening 45 forms a slot that extends along the length of the track 40. The track body 48 extends around an interior space 46 that is sized to retain the head 31 of the pin 30. The width W2 of the opening 45 is less than the width W1 of the head 31 to prevent the head 31 from slipping out through the opening 45.

[0056] like Figure 3 As shown, the notch 47 extends through the lateral side 44 and communicates with the interior space 46. The width of the notch 47 is greater than the width W1 of the head 31. This allows the pin 30 to move through the notch 47 when the barrier door 20 is deployed to the extended configuration. The notch 47 is proximate to the second end 42 and distal to the first end 41.

[0057] The barrier door 20 can be selectively positioned along the track 40 between a stowed position and a deployed position. In some examples, the stowed position is away from the opening 113. Figure 2 and Figure 3 , the stowed position is proximate to the cockpit 110. In one specific example, the stowed position is located in the space just outside the cockpit door 90. In other examples, the stowed position is located elsewhere, such as, but not limited to, within a galley, within an opening in a building 112, and along a side of one or more seats 105 in a passenger section 121. The stowed position leaves the opening 113 clear to allow people to move about the aircraft 100.

[0058] In such Figure 8 and Fig. 9 In some examples shown, the barrier door 20 is in a folded configuration when stowed. The folded configuration includes the panels 21 folded together to reduce the size of the barrier door 20 to further prevent interference with people in the cabin area 103. In one example, the folded configuration includes the faces of the panels 21 contacting each other. Fig. 9In one example shown, the panels 21 each have a centerline C extending through the lateral edges 24. The centerlines C are arranged in a parallel configuration. In some examples, in the folded configuration, the centerline C of the panel 21 is aligned parallel to the centerline of the track 40.

[0059] The deployed position positions the barrier door 20 proximate the opening 113. In some examples, the deployed position is within the opening 113. In other examples, the deployed position is away from the opening 113 but close enough so that the barrier door 20 extends across the opening in the extended configuration.

[0060] In some examples, the barrier door 20 is extended into an elongated shape by pivoting the panels 21 about the hinges 27. In some examples, the panels 21 are aligned in an end-to-end arrangement, wherein the lateral edges 24 are aligned and the center lines C are in a straight line. The barrier door 20 has a length measured between the outer edge of the first panel 21 and the outer edge of the last panel 21 to extend from the track 40 across the opening 113.

[0061] FIG. 10A to FIG. 10E The barrier door 20 is shown deployed. Fig. 10A As shown, the barrier door 20 is in a stowed position along the track 40. This positions the barrier door 20 away from the opening 113 to prevent interference with people moving through the opening 113. The pins 30a, 30b on the first panel 21a engage in the track 40. The other panel 21b is hingedly connected to the first panel 21a, but is not engaged with the track 40. The barrier door 20 is in a folded configuration to reduce the overall size to further prevent interference with people in the area and people moving through the opening 113.

[0062] To deploy, the barrier door 20 moves along the track 40 in the direction of arrow A, as shown in FIG. Fig. 10B This includes the first panel 21a sliding along the track 40, wherein the heads of the pins 30a, 30b slide along the interior space. The barrier door 20 moves along the track 40 to the deployed position, as shown. Fig. 10C In some examples, this includes the pin 30a coming into abutting contact with an end cap mounted to the second end 42 of the track 40. The pins 30a, 30b remain engaged with the track 40, with the pin 30b aligned with the notch 47.

[0063] Fig. 10D The barrier door 20 is shown moving toward the extended configuration. The movement includes the first panel 21a pivoting about the pin 30a. The pivoting movement causes the pin 30b to move through the notch 47 to disengage the pin 30b from the track 40. The other panels 21b are deployed to extend the overall length of the barrier door 20. Fig.10EAs shown in , the barrier door 20 is in an extended configuration to extend across the opening 113. The outer lateral edges 24 of the outer panels 21b are positioned at mounting portions 130 that form the sides of the opening 113. In some examples, the barrier door 20 is locked to the mounting portions 130 in the extended configuration to remain in place. Fig.10E In some examples shown in FIG. 1 , the panels 21a, 21b are aligned in a straight line in an end-to-end arrangement. In some examples, the center lines C of the panels 21a, 21b are aligned colinearly. In other examples, the panels 21a, 21b are aligned in a non-parallel arrangement in the extended configuration. In some examples, the barrier door 20 pivots relative to the track 40 and is perpendicular to the track 40 in the extended configuration.

[0064] The barrier door 20 is returned to the stowed position in the reverse order. The panels 21a, 21b are folded back together, and the pin 30b of the panel 21a moves through the notch 47 and returns to the interior space 46. The panels 21a, 21b are then translated along the track 40 to the stowed position.

[0065] In some examples, the barrier door 20 is in a folded configuration when moving between the stowed position and the deployed position along the track 40. In other examples, the barrier door 20 is partially or fully extended when moving along the track 40.

[0066] In such FIG. 10A to FIG. 10E In some examples shown, the barrier door 20 extends across a single opening 113 in the deployed position. In other examples, the barrier door 20 is sized to extend across two or more openings 113.

[0067] The barrier door 20 may include different numbers of panels 21. In some examples, the barrier door 20 includes a single panel 21. In other examples, the barrier door 20 includes two or more panels 21. In a multi-panel barrier door 20, different panels 21 may include the same or different shapes and sizes.

[0068] Fig.11 A method of controlling passenger movement through an opening 113 within a cabin area 103 of an aircraft 100 is shown. The method includes positioning a barrier door 20 mounted to a track 40 at a stowed position along the track 40 (block 200). The stowed position is away from the opening 113 and the barrier door 20 is in a folded configuration. While the barrier door 20 remains engaged with the track 40, the barrier door 20 is translated along the track 40 away from the stowed position to a deployed position (block 202). After the barrier door 20 is moved to the deployed position, the barrier door 20 is pivoted relative to the track 40 (block 204). The barrier door 20 moves to an extended configuration extending across the opening 113.

[0069] Without departing from the essential characteristics of the invention, the invention may be implemented in other ways than those specifically set forth herein. The present embodiments are considered in all respects to be illustrative and not restrictive, and all changes falling within the meaning and equivalent scope of the appended claims are intended to be included therein.

Claims

1. A barrier door system for controlling the movement of people through an opening in a cabin area of ​​an aircraft, the barrier door system comprising: A track (40) having an elongated shape, comprising a first end (41) configured to be positioned away from the opening and a second end (42) configured to be positioned close to the opening; as well as The barrier door (20) comprises: A plurality of panels (21) pivotably connected together; one or more pins (30) extending outwardly from a top edge (22) of the barrier door (20) and configured to engage the track (40); wherein the plurality of panels (21) are configured to pivot together into a folded configuration in the stowed position; and The plurality of panels (21) are configured to pivot outwardly away from the track (40) into an extended configuration in the deployed position to extend across the opening.

2. The barrier door system according to claim 1, wherein: The one or more pins (30) extend outwardly from a single panel of the plurality of panels (21).

3. The barrier door system according to claim 1, wherein: The track (40) comprises: apical part (43); a first lateral side (44) and a second lateral side (44) spaced apart and extending from the top side (43); and an opening (45) formed between a distal end of the first lateral side portion (44) and a distal end of the second lateral side portion (44); and The opening (45) has a first width and the one or more pins (30) have a second width, wherein the second width is greater than the first width to maintain the one or more pins engaged with the track (40) when the one or more pins (30) move between the stowed position and the deployed position.

4. The barrier door system of claim 3, further comprising a notch (47) located in the first lateral side (44) of the track (40) and closer to the second end (42) than the first end (41), the notch (47) having a width greater than the second width to allow one of the plurality of pins (30) to move through the notch when the barrier door (20) is moved from the folded configuration to the extended configuration.

5. The barrier door system according to claim 1, wherein: The plurality of panels (21) are aligned parallel to each other in the folded configuration.

6. The barrier door system according to claim 1, further comprising a lock (28), the lock being located at a front side of the barrier door (20) and away from a rear side of the barrier door (20), the lock (28) being configured to maintain the barrier door (20) in the extended configuration.

7. The barrier door system of claim 1, further comprising wheels (29) mounted to the barrier door (20) and extending outwardly from a bottom edge (23) of the barrier door (20).

8. A barrier door system for controlling the movement of people through an opening in a cabin area of ​​an aircraft, the barrier door system comprising: A track (40) comprising an interior space (46) positioned within a body (48); as well as A barrier door (20) is mounted on the track (40), wherein the barrier door (20) comprises: First panel (21); one or more additional panels (21) connected to the first panel (21); and a first pin (30) and a second pin (30), the first pin and the second pin extending outwardly from a top edge (22) of the first panel (21), the first pin (30) and the second pin (30) being sized to fit within the interior space (46) of the track (40); The barrier door (20) is configured to move along the track (40) and is configurable between a folded configuration and an extended configuration; wherein the folding configuration comprises: the first pin (30) and the second pin (30) are both located within the interior space (46); and the first panel (21) and the one or more additional panels (21) are folded together; and wherein the extended configuration comprises: the first pin (30) being located within the interior space (46); and the second pin (30) being located outside the interior space (46) and away from the track (40), wherein the barrier door (20) pivots relative to the track (40), and wherein the first panel (21) and the one or more additional panels (21) unfold to extend across the opening.

9. The barrier door system of claim 8, wherein: The length of the first pin (30) is greater than the length of the second pin (30), and the distance the first pin extends outward from the top edge (22) of the first panel (21) is greater than the distance the second pin (30) extends outward from the top edge of the first panel.

10. The barrier door system of claim 8, wherein: The first panel (21) and the one or more additional panels (21) are pivotally connected together, and the first panel and the one or more additional panels are in an overlapping arrangement in the folded configuration and in an end-to-end arrangement in the extended configuration.

11. The barrier door system of claim 8, further comprising a notch (47) extending through the body (48) of the track (40), the notch (47) having a width greater than a width of the second pin (30) such that the second pin (30) moves through the notch (47) when the barrier door (20) is moved from the folded configuration to the extended configuration.

12. The barrier door system of claim 11, wherein: The body (48) of the track (40) comprises: apical part (43); a first lateral side (44) and a second lateral side (44) spaced apart and extending from the top side (43); and an opening (45) formed between a distal end of the first lateral side portion (44) and a distal end of the second lateral side portion (44); and Wherein, the notch (47) extends through the first lateral side (44).

13. The barrier door system of claim 11, wherein: The first pin (30) and the second pin (30) each include a neck (32) extending outward from the top edge (22) of the first panel (21) and a head (31) positioned at one end of the neck (32), wherein the width of the head (31) is greater than the width of the neck (32).

14. The barrier door system of claim 8, further comprising wheels (29) positioned along a bottom edge (23) of the barrier door (20).

15. The barrier door system of claim 8, further comprising a lock (28) positioned on the barrier door (20), the lock (28) being exposed only on a front side of the barrier door (20).

16. A method of controlling the movement of passengers through an opening in a cabin area of ​​an aircraft, the method comprising: positioning a barrier door (20) mounted to a track (40) in a stowed position along the track (40) away from the opening, wherein the barrier door (20) is in a folded configuration; while the barrier door (20) remains engaged with the track (40), translating the barrier door (20) along the track (40) away from the stowed position to a deployed position; and After moving the barrier door (20) to the deployed position, the barrier door (20) is pivoted relative to the track (40) and the barrier door (20) is extended to an extended configuration and the barrier door (20) is extended across the opening.

17. The method of claim 16, further comprising pivoting the first panel (21) of the barrier door (20) relative to the track (40) and moving a second pin (30) extending outwardly from the first panel (21) through a notch (47) in the track (40) while maintaining engagement of the first pin (30) extending from the first panel (21) with the track (40).

18. The method of claim 16, further comprising pivoting the barrier door (20) to the extended configuration across an opening and aligning the barrier door (20) perpendicular to the track (40).

19. The method of claim 16, further comprising sliding the barrier door (20) from a first end (41) of the track (40) at the stowed position to a second end (42) of the track (40) at the deployed position.

20. The method of claim 16, further comprising sliding the barrier door (20) from the stowed position proximate a cockpit (110) to the deployed position forward of a passenger section (121) of the cabin area (103).

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