Blocking door with hinged lock

Abstract

The invention discloses a lock for a multi-panel door. The lock includes a keyhole portion configured to be mounted to the first panel, and the keyhole portion having a receiving portion. The latch portion is configured to be mounted to the second panel, and the latch portion has a bolt selectively movable between an unlocked position away from the receiving portion and a locked position positioned in the receiving portion. A hinge pivotally connects the keyhole portion and the latch portion. The keyhole portion and the latch portion are selectively movable about the hinge to enable relative pivotal movement between the first panel and the second panel.

Description

Technical Field

[0001] The present disclosure relates generally to the field of aircraft, and more particularly, to a barrier door having a hinged lock to enable the barrier door to be folded in a stowed position. Background Art

[0002] An aircraft has a cockpit that includes flight instruments, an instrument panel, and various controls that enable the flight crew to operate the aircraft. The cockpit is located toward the front of the aircraft and is typically a separate compartment away from the passenger cabin area. The cockpit door also makes the cockpit secure and, when closed, isolates it from the passenger 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 various reasons. One such reason is when a member of the flight crew uses the lavatory located in the aircraft's cabin area. Other situations include, but are not limited to, when food and / or beverages prepared in the cabin area's galley are delivered to the flight crew in the cockpit, and when the flight crew leaves the cockpit during a rest period.

[0004] Opening the cockpit door may provide an opportunity for unauthorized personnel to gain access to the cockpit. A physically installed system is needed that will prevent and / or substantially delay a person in the passenger cabin area from reaching the cockpit door when the cockpit door is open. Delaying the person from moving toward the cockpit will allow the cockpit door to be closed and locked before the person reaches the door. Summary of the Invention

[0005] One aspect relates to a lock for a multi-panel door having a first panel and a second panel pivotally connected together. The lock includes a strike section configured to be mounted to the first panel, wherein the strike section includes a receiving portion. A latch section configured to be mounted to the first panel.

[0006] The invention relates to a second panel, wherein the latch portion includes a bolt that is selectively movable between an unlocked position away from the receiving portion and a locked position positioned in the receiving portion. The hinge pivotally connects the keyhole portion and the latch portion. The keyhole portion and the latch portion are selectively movable about the hinge to enable relative pivotal movement between the first panel and the second panel.

[0007] In another aspect, the keyhole portion and the latch portion are relatively movable between a closed position in which the keyhole portion and the latch portion are aligned in a coplanar orientation and an open position in which the keyhole portion and the latch portion are aligned in a crossing orientation.

[0008] In another aspect, each of the keyhole portion and the latch portion includes faces, and wherein the faces are positioned together in the closed position and the faces are spaced apart in the open position.

[0009] In another aspect, the latch portion includes a bolt, and in the closed position the bolt is configured to extend outside of the latch portion.

[0010] In another aspect, a handle is positioned on the latch portion, wherein the handle is movable relative to the body of the latch portion and is configured to control the position of the bolt.

[0011] In another aspect, the handle includes a front handle and a rear handle, wherein the front handle is exposed at a front side of the latch portion and the rear handle is exposed at a rear side of the latch portion.

[0012] In another aspect, the hinge is configured to enable the keyhole portion to pivot relative to the latch portion to the front of the latch portion and to prevent the keyhole portion from pivoting to the rear of the latch portion.

[0013] In another aspect, the lock includes a first side facing outward from the door in a first direction and a second side facing outward from the door in an opposite second direction, wherein the hinge is mounted on the first side of the lock and is configured to be accessible from the first side and not accessible from the second side when the door is in a closed position.

[0014] In another aspect, a lock is configured to be installed within an aircraft.

[0015] One aspect relates to a lock for a multi-panel door having a first panel and a second panel pivotally connected together. The lock includes a keyhole portion configured to be mounted to the first panel and a latch portion configured to be mounted to the second panel. Each of the keyhole portion and the latch portion includes a body having a front side, a rear side, and a face extending between the front side and the rear side. A receiving portion extends into the face of the keyhole portion. A handle and a bolt are mounted to the latch portion. A hinge is connected to the keyhole portion and the latch portion. The keyhole portion and the latch portion are selectively movable about the hinge between a closed position and an open position. In the closed position, the faces of the keyhole portion and the latch portion face each other, allowing the bolt to extend into the receiving portion, thereby locking the lock. In the open position, the faces of the keyhole portion and the latch portion face away from each other.

[0016] In another aspect, the hinge is configured to enable relative pivotal movement between the first panel and the second panel.

[0017] In another aspect, the hinge is positioned on a front side of each of the keyhole portion and the latch portion.

[0018] In another aspect, the hinge is a piano hinge.

[0019] In another aspect, faces of the keyhole portion and the latch portion abut one another in the closed position.

[0020] In another aspect, the hinge has a straight shape.

[0021] In another aspect, the keyhole portion and the latch portion each include a body, wherein the body of the keyhole portion is configured to fit within the first panel and the body of the latch portion is configured to fit within the second panel.

[0022] In another aspect, the handle includes a first handle positioned on a front side of the latch portion and a second handle positioned on a rear side of the latch portion, wherein the bolt is positioned between the first handle and the second handle.

[0023] One aspect relates to a method of operating a door. The method includes: engaging a lock and locking the door in an extended configuration across an opening using a latch portion of the lock on a second panel of the door and an eyelet portion of the lock on a first panel of the door; disengaging the lock and pivoting the first panel relative to the second panel and pivoting the latch portion relative to the eyelet portion; and folding the door into a folded configuration by folding the second panel and the latch portion together with the first panel and the eyelet portion.

[0024] In another aspect, the method further includes positioning the door in a folded configuration along an edge of the opening.

[0025] In another aspect, disengaging the lock includes turning a handle on the latch portion and rotating the bolt out of a receiving portion in the keyhole portion.

[0026] In another aspect, the method further includes aligning the keyhole portion and the latch portion in a coplanar orientation with the door in the extended configuration.

[0027] In another aspect, the method further includes rotating a handle on the latch portion and moving a bolt of the latch portion into a receiver in the keyhole portion.

[0028] In another aspect, the method further includes positioning a hinge of the lock on a front side of the door with the door in the extended position.

[0029] In another aspect, the method further includes positioning a door across an opening in a cabin area of ​​the aircraft.

[0030] In another aspect, the method further includes positioning a door remote from the opening and enabling passengers of the aircraft to move through the opening.

[0031] One aspect relates to a method of locking a door. The method includes: unfolding first and second panels of the door and unfolding a lock comprising a first portion attached to the first panel and a second portion attached to the second panel; extending the door across an opening in an extended configuration and aligning the first and second portions of the lock; locking the lock in the extended configuration and preventing the door from folding; unlocking the lock and folding the first and second panels out of the opening; and folding the lock while folding the first and second panels.

[0032] In another aspect, the method further includes extending the door across the opening and aligning the first and second portions of the lock in a coplanar orientation.

[0033] In another aspect, the method further includes moving the door out of the opening and aligning the first and second portions of the lock in a crossing orientation.

[0034] In another aspect, the method further includes rotating a handle on the second portion of the lock and engaging the bolt with the first portion and locking the lock.

[0035] In another aspect, the method further comprises folding the door and simultaneously pivoting the first and second panels about the panel hinge and the first and second portions about the lock hinge, wherein the panel hinge and the lock hinge are aligned in a straight line.

[0036] One aspect relates to a door assembly configured to be installed in an opening within the interior of an aircraft. The door assembly includes a frame; a door mounted in the frame and including a first panel and a second panel; and a lock. The lock includes a keyhole portion configured to be installed to the first panel, wherein the keyhole portion includes a receiving portion; a latch portion configured to be installed to the second panel, wherein the latch portion includes a bolt that is selectively movable between an unlocked position away from the receiving portion and a locked position positioned in the receiving portion; and a hinge that pivotally connects the keyhole portion and the latch portion. The keyhole portion and the latch portion are selectively movable about the hinge to lock the first panel and the second panel for relative pivotal movement.

[0037] In another aspect, the frame extends completely around the door.

[0038] In another aspect, the door includes a front side and a rear side, and wherein the hinge is located on the front side.

[0039] In another aspect, the door is movable between a folded configuration in which the eyelet portion and the latch portion are folded together about the hinge and an extended configuration in which the eyelet portion and the latch portion are aligned in a plane.

[0040] In another aspect, each of the keyhole portion and the latch portion includes faces, and wherein the faces are positioned together in the closed position and the faces are spaced apart in the open position.

[0041] In another aspect, a door assembly is installed in an opening within an interior of an aircraft.

[0042] 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

[0043] Figure 1 is an isometric view of the aircraft.

[0044] Figure 2 is a top view schematic diagram of a blocking door installed in an opening.

[0045] Figure 3A is an isometric view of a blocking door in the open position and folded within the frame.

[0046] Figure 3B is in a partially closed position and extends partially across the opening Figure 3A Isometric view of a blocking door.

[0047] Figure 3C is in the closed position and extends completely across the opening Figure 3A Isometric view of a blocking door.

[0048] Figure 4A is a front view of the lock in the closed position.

[0049] Figure 4B is in the closed position Figure 4A Rear view of the lock.

[0050] Figure 5A is in the open position Figure 4A Isometric front view of the lock.

[0051] Figure 5B is in the open position Figure 4A Isometric rear view of the lock.

[0052] Figure 6 The present invention is a flowchart of a method for locking a blocking door.

[0053] Figure 7 The present invention is a flowchart of a method for locking a blocking door.

[0054] Figure 8A is a schematic diagram of the engaging member in the disengaged position.

[0055] Figure 8Bis in the engaged position Figure 8A Schematic diagram of the joining components.

[0056] Figure 9A is a schematic side view of the engagement member in the disengaged position.

[0057] Figure 9B is in the engaged position Figure 9A A schematic side view of a joining member.

[0058] Figure 10 is a side view of a cam member connected to a rotating pin in an overlapping arrangement.

[0059] Figure 11A is a side view of the locking bar assembly in a first position preventing the cam member from rotating.

[0060] Figure 11B is in a second position enabling the cam member to rotate Figure 11A Side view of the locking rod assembly.

[0061] Figure 12 is a cross-sectional diagram of the damper.

[0062] 13A to 13C is a side view of the locking lever assembly and the delay assembly in different positions to control the positioning of the frame.

[0063] Figure 14 is a side view of the stop engaged with the delay assembly.

[0064] Figure 15 yes Figure 14 An enlarged partial side view of the stopper.

[0065] Figure 16 is a side view of the stop in the unlocked position to enable the frame of the locking bar assembly to move downward.

[0066] Figure 17 is in the locked position in contact with the frame of the locking rod assembly Figure 16 Side view of the stopper.

[0067] Figure 18 is a partial cross-sectional view of a fastener mounted to the keyhole portion of a lock.

[0068] Figure 19 is a schematic diagram of a door assembly installed in an opening. DETAILED DESCRIPTION

[0069] Figure 1 and Figure 2An aircraft 100 configured to transport passengers is shown. Aircraft 100 includes a fuselage 101 having a cockpit 110 located at the front and a cabin area 103 located at the rear. Cabin area 103 is configured to accommodate passengers. The dimensions of cockpit 110 and cabin area 103 may vary depending on the aircraft 100. One or more exterior doors 104 are provided for passengers and flight crew to enter and exit fuselage 101.

[0070] Cockpit 110 includes one or more seats 111 for flight crew members, including but not limited to a pilot and co-pilot. Various controls and instrument panels (not shown) are positioned for use by the flight crew to control aircraft 100. Cockpit door 90 separates cockpit 110 from cabin area 103. Cockpit door 90 prevents unauthorized personnel from entering cockpit 110 from cabin area 103. Cockpit door 90 may include a lock to secure door 90 in a closed position.

[0071] Facilities 112 are mounted to structural members of aircraft 100 within fuselage 101. The shape and size of facilities 112 depend on their function, examples of which include, but are not limited to, galleys, lavatories, walls, and storage units. In some examples, facilities 112 are shaped and sized to extend from the floor to the ceiling of cabin area 103 and between walls 114 of fuselage 101 and aisles 123.

[0072] Cabin area 103 is located along fuselage 101 behind cockpit 110. Cabin area 103 includes a crew section 124 and a passenger section 121. Crew section 124 is located immediately behind cockpit 110. In some examples, crew section 124 is located at one of exterior doors 104 and includes a space that allows passengers to enter and exit aircraft 100. Additionally or alternatively, crew section 124 provides an area for flight crew members (such as flight attendants) to sit during takeoff and landing, an area for flight crew members to prepare food and beverages, and an area for passengers to access lavatories. Figure 2 It includes a crew section 124 having lavatory facilities 112c, storage facilities 112d and a pair of galley facilities 112a, 112b.

[0073] exist Figure 2 In some examples, the passenger section 121 is positioned behind the crew section 124. The passenger section 121 is configured to accommodate passengers and includes seats 122 arranged in rows along one or more aisles 123. In some examples, such as commercial airlines, the seats 122 extend throughout the passenger section 121.

[0074] The cabin area 103 can include a variety of configurations. In some examples, the aircraft 100 is used to transport cargo and includes a limited number of seats 122 in the cabin area 103. In some examples, the cabin area 103 does not include a crew section 124, where the passenger section 121 includes seats 122 extending directly behind the cockpit 110.

[0075] One or more openings 113 form walkways for passengers and flight crew to move within the cabin area 103. Figure 2 In some examples shown, openings 113 are formed between the facilities 112 . Figure 2 An arrangement is shown having an opening 113 extending between the crew section 124 and the passenger section 121. Other examples include openings 113 formed between various components, such as the facilities 112, walls 114, and seats 122.

[0076] The blocking door 20 extends across the opening 113 to delay and / or prevent passengers in the passenger section 121 from moving through the opening 113 and approaching the cockpit 110. The blocking door 20 can be in the stowed position ( Figure 2 ) and the open position across the opening 113 ( Figure 2 In the stowed position, the barrier door 20 is folded and positioned within the frame 27. This allows personnel to move through the opening 113, such as during boarding and deplaning. In the extended position, the barrier door 20 is in an extended configuration extending across the opening 113. This prevents and / or delays personnel in the passenger section 121 from moving through the opening 113 and accessing the cockpit 110.

[0077] The barrier door 20 is constructed from panels 23 that are hinged together. The number and configuration of the panels 23 may vary. Figure 3A 、 Figure 3B and Figure 3C Shown is a diagram of blocking the door 20 from the stowed position ( Figure 3A ) moves to a partially open position ( Figure 3B ) to the open position ( Figure 3C In the stowed position ( Figure 3A ), the panels 23 are folded together and outside the opening 113. The panels 23 may be completely outside the opening 113, such as within the frame 27 or folded and stored at one side of the opening 113. Figure 3C ), panel 23 is unfolded to extend across opening 113.

[0078] The panel 23 is constructed of a rigid material (e.g., composite material, plastic) and has a fixed shape. The panel 23 can include various shapes and sizes, including a generally rectangular shape as shown. Figure 3CIn some examples shown, the panels 23 are sized to extend across the entire opening 113 so that no gaps exist when in the open position. In other examples, one or more small gaps are formed along the outer edges of the panels 23. In some examples, the panels 23 have the same shape and size to completely overlap in the folded configuration. In other examples, the panels 23 include different shapes and / or sizes. One or more windows 24 can be positioned on one or both panels 23. The windows 24 include railings, protective transparent materials, or other structures to prevent passengers from passing through when the barrier door 20 is closed.

[0079] The blocking door 20 includes one or more hinges 25 to enable pivotal movement of the panel 23. Figure 3B and Figure 3C In the example best shown in FIG, the panels 23 are connected by a hinge 25 positioned at an inner edge 26. The hinge 25 can extend along a single continuous portion of the inner edge 26, or can include two or more discrete portions. In some examples, the hinge 25 is arranged so that the panels 23 are parallel in the folded configuration. This minimizes the overall size of the barrier door 20 when in the stowed position to allow a person to pass through the opening 113. In some examples, the hinge 25 aligns the panels 23 in a colinear position in the extended configuration to extend across the opening 113. In other examples, the panels 23 are positioned at different relative angular positions in the folded configuration and the extended configuration. The hinge 25 can include various configurations, including, but not limited to, a piano hinge.

[0080] In the open position, the blocking door 20 includes a front side 21 (ie, the crew side) facing the crew section 124 and facing forward toward the cockpit 110. The blocking door 20 also includes a front side 21 (ie, the crew side) facing toward the passenger section 121 (see FIG. Figure 2 ) on the rearward-facing rear side 22 (i.e., the passenger side). The barrier door 20 is mounted to the frame 27 via one or more frame hinges 92. In some examples, the frame hinge 92 and one or more hinges 25 are located on the front side 21 of the barrier door 20 (i.e., in the crew section 124). This allows the barrier door 20 to more effectively resist loads applied from the passenger section 121 toward the cockpit 110.

[0081] The blocking door 20 includes a lock 30 that secures the panel 23 in the extended configuration when the panel is deployed across the opening 113. Figure 3C As shown, locks 30 are positioned on two adjacent panels 23. Locks 30 include a hinged design that enables pivotal movement of the panels 23 as they move between the folded and extended configurations. Locks 30 include hinges 33 that align with hinges 25 of the barrier door 20. Hinge 33 enables locks 30 to move between the folded and extended configurations. This allows locks 30 to pivot during movement of the barrier door 20.

[0082] The lock 30 comprises a first portion and a second portion pivotally connected together to be foldable. Figure 4A 、 Figure 4B 、 Figure 5A and Figure 5B As shown, the lock 30 includes a keyhole portion 40 and a latch portion 50. A hinge 33 is connected to the keyhole portion 40 and the latch portion 50 and enables pivotal movement of the hinge between the keyhole portion and the latch portion. When the lock 30 is installed on the barrier door 20, the keyhole portion 40 is connected to the first panel 23, and the latch portion 50 is connected to the second panel 23. The hinge 33 is aligned with the hinge 25 connecting the first panel 23 and the second panel 23. In some examples, the hinges 25 and 33 are aligned in a straight line.

[0083] Figure 4A The front side 31 of the lock 30 (ie, the crew side facing the crew section 124) is shown in the closed position, and Figure 4B The rear side 32 (i.e., the passenger side facing the passenger portion 121) is shown in the closed position. The eyelet portion 40 and the latch portion 50 are aligned together, such as coplanarly aligned, in the closed position. This closed position occurs when the lock 30 is locked and the barrier door 20 is in the extended configuration.

[0084] Figure 5A The front side 31 of the lock 30 is shown in the open position, and Figure 5B The rear side 32 of the lock 30 is shown in an open position. The keyhole portion 40 and the latch portion 50 are in an intersecting orientation. The degree of angular alignment between the keyhole portion 40 and the latch portion 50 can vary. In the open position, the front sides 41, 51 of the keyhole portion 40 and the latch portion 50 generally face each other and the rear sides 42, 52 generally face away from each other.

[0085] In some examples, hinge 33 is mounted to front side 31 of lock 30. This allows hinge 33 to be exposed to crew section 124 when barrier door 20 is in the open position. This prevents passengers in passenger section 121 from damaging hinge 33 when barrier door 20 is in the open position.

[0086] The keyhole portion 40 includes a body 49 having a front side 41, a rear side 42, and an interior face 48. A receiving portion 43 extends into the interior face 48. The front side 41 may include a flange extending above the panel 23. In some examples, the keyhole portion 40 has a two-piece construction, comprising a front portion 44 and a rear portion 45 in an overlapping configuration. The receiving portion 43 is positioned at the intersection of the front portion 44 and the rear portion 45. Fasteners 160 extend through openings in each of the front portion 44 and the rear portion 45 to connect the two portions together. In some examples, one or more fasteners 160 are installed from each of the front side 31 and the rear side 32 of the lock 30. In other examples, the fasteners 160 extend only from the front side 31 into the lock 30 to prevent tampering by a passenger when the lock is in the closed position.

[0087] The latch portion 50 includes a body 59 having a front side 51 and a rear side 52. The body 59 includes an inner face 58 at the hinge 33. When the lock 30 is in the closed position, the inner faces 48, 58 face each other. In some embodiments, the inner faces 48, 58 abut together in the closed position; other embodiments include faces 48, 58 spaced apart. The latch portion 50 includes a handle 53. The handle 53 includes a front handle 54 at the front side 51 and a rear handle 55 at the rear side 52.

[0088] Figure 6 A method for locking the barrier door 20 is shown. The method includes engaging the lock 30 and locking the barrier door 20 in an extended position across the opening 113 (block 300). The lock 30 includes a latch portion 50 on the second panel 23 of the barrier door 20 and a keyhole portion 40 on the first panel 23. At some point thereafter, the lock 30 is disengaged, the first panel 23 is pivoted relative to the second panel 23, and the latch portion 50 is also pivoted relative to the keyhole portion 40 (block 302). The barrier door 20 is positioned in a folded configuration to allow movement through the opening 113, and the second panel 23 and latch portion 50 are folded with the first panel 23 and keyhole portion 40 (block 304). In this method, the foldable nature of the lock 30 does not interfere with the folding action of the barrier door 20. Instead, the lock 30 folds along with the panels 23 when the barrier door 20 moves from the extended configuration to the folded configuration.

[0089] Figure 7Another method includes extending the first and second panels 23, 23 of the barrier door 20 and deploying the lock 30 (block 350). The lock 30 includes a first portion attached to the first panel 23 and a second portion attached to the second panel 23. The barrier door 20 is extended across the opening 113, and the first and second portions of the lock 30 are aligned in an extended position (block 352). The method also includes locking the lock 30 while the barrier door 20 is in the extended position, thereby preventing the barrier door from folding (block 354). At some point thereafter, the method includes unlocking the lock 30 and folding the first and second panels 23, 23 (block 356). When the panels 23 are folded, the lock 30 is also folded (block 358).

[0090] The lock 30 includes a rotary bolt 60. The rotary bolt 60 is moved between a locked position and an unlocked position by rotating the handle 53. Figure 8A and Figure 8B As schematically shown in FIG, a rotating bolt 60 is mounted to the latch portion 50. In some examples, the rotating bolt 60 is positioned within the periphery of the body 59, and other examples are positioned in a different arrangement. The rotating bolt 60 is movable between a disengaged position and an engaged position. Figure 8A In the unlocked position, the rotating bolt 60 is positioned to be unlocked from the keyhole portion 40. In some examples, this includes the rotating bolt 60 being sunk into the periphery of the body 59. Figure 8B In the engaged position, the rotating bolt 60 is positioned to engage the keyhole portion 40. In some examples, the engaged position includes the rotating bolt 60 extending outside the body 59 and positioned to be inserted into the keyhole portion 40. The handle 53 is operably connected to the rotating bolt 60 to rotate the rotating bolt 60 between the engaged position and the disengaged position.

[0091] The lock 30 is configured to be selectively movable between a locked position and an unlocked position by rotating the handle 53. The lock 30 is positioned to lock when the keyhole portion 40 and the latch portion 50 are aligned in a generally planar arrangement. Once aligned, the handle 53 is rotated to move the rotary bolt 60 from the disengaged position to the engaged position. To unlock the lock 30, the handle 53 is rotated to rotate the rotary bolt 60. Once unlocked, the panel 23 and the lock 30 can be folded and moved to allow a person to move through the opening 113.

[0092] The rotary bolt 60 is rotatably mounted to the body 59 of the latch portion 50 . Figure 9A and Figure 9B The rotating bolt 60 is shown rotating about a center point C and moving relative to the keyhole portion 40. The rotating bolt 60 includes an outer periphery 63 having an expanded portion 61 and a flat portion 62. Figure 9AIn the unlocked position shown, the rotary bolt 60 is in a rotated position in which the flat portion 62 is positioned at the receiving portion 43 of the keyhole portion 40. The flat edge is aligned with the edge of the receiving portion 43 but does not extend into the receiving portion 43. Because the rotary bolt 60 is not engaged with the keyhole portion 40, this position is the unlocked position of the lock 30.

[0093] In such Figure 9B In the locked position shown, the rotary bolt 60 is in a rotated position in which the extended portion 61 is positioned at the receiving portion 43. The larger radius, measured from the center point C of the extended portion 61 relative to the flat portion 62, causes the extended portion 61 to extend into the receiving portion 43. This engagement locks the lock 30 and prevents the hinge 33 from pivoting. This also prevents the panel 23 from folding and blocking the door 20 from opening. In the locked position, the flat portion 62 is positioned away from the receiving portion 43.

[0094] The front handle 54 is directly connected to the rotating bolt 60. A user applies a rotational force to the front handle 54 to rotate the rotating bolt 60 between a locked position and an unlocked position. This direct connection enables a crew member at the front side 21 of the barrier door 20 to rotate the front handle 54 and lock and / or unlock the lock 30. This allows the crew member to quickly lock the barrier door 20 in the event of a problem. It also allows the crew member to quickly unlock the barrier door 20 to gain access to the passenger section 121.

[0095] The rear handle 55 is connected to the rotary latch 60 via a delay assembly 140 comprising a cam member 70 and a lock lever assembly 80. Because the rear handle 55 cannot be rotated to unlock the lock 30 until the time delay has expired, this configuration delays unlocking the lock 30 from the passenger section 121. Once the time delay has expired, the passenger can rotate the rear handle 55 to unlock the lock 30 and open the obstruction door 20. This time delay provides time for crew members to move into the cockpit 110 as needed and close and lock the cockpit door 90.

[0096] As described below, as the front handle 55 rotates, the protrusion 64 travels along the slot 71, allowing the front handle 55 to rotate between the locked and unlocked positions without contacting the cam member 70 and without moving the rear handle 54. In some examples, the front handle 55 rotates a total of 90 degrees during operation. When the delay assembly 140 allows the rear handle 54 to rotate to the unlocked position, the rear handle rotates a certain amount (e.g., 90 degrees) to allow the protrusion 64 to reach the end of the slot 71. After this initial rotation, an additional amount of rotation (e.g., 90 degrees) allows both handles to rotate together to the unlocked position. The rear handle 54 rotates both the initial rotation amount and the subsequent rotation amount. In one example, the rear handle 54 rotates a total of 180 degrees during operation.

[0097] Figure 10The cam member 70 is shown positioned in an overlapping arrangement with the rotating bolt 60. The cam member 70 includes a center point CP2 aligned with the center point of the rotating bolt 60. The two components rotate about the same axis extending through these center points. The cam member 70 includes a first slot 71 and a second slot 74. The protrusion 64 extending from the rotating bolt 60 extends into the slot 71. In some examples, the cam member 70 has a relatively flat, thin shape with an inner face aligned parallel to a face of the rotating bolt 60.

[0098] Slot 71 has a relatively uniform width along its length between opposite ends 72, 73. This width corresponds to the width of protrusion 64, enabling protrusion 64 to move between ends 72, 73 during rotation of rotary pin 60. Slot 74 includes a first end 75 and a second end 76. Slot 74 includes a contact surface 77 positioned between first end 75 and second end 76. The width of the slot changes in a tapered shape between end 76 and contact surface 77 and is generally constant between contact surface 77 and first end 75.

[0099] During rotation of the front handle 54 by the crew member, the rotating bolt 60 rotates so that the protrusion 64 moves along the slot 71. This configuration enables the lock 30 to be locked and unlocked without delay. Figure 10 ) is configured to engage with the cam member 70 and provide a time delay when the rear handle 55 is used to unlock the lock 30.

[0100] exist Figure 11A and Figure 11B 60 is shown in these figures. The locking bar assembly 80 includes a frame 81 positioned adjacent to the cam member 70. A projection 82 extends outwardly from the frame 81. Because of the contact between the projection 82 and the contact surface 77, the locking bar assembly 80 is able to prevent the cam member 70 from rotating in the direction of arrow A. This in turn prevents the attached rotating bolt 60 and the rear handle 55 from rotating. This contact prevents the cam member 70 from rotating to the unlocked position. To enable unlocking from the passenger side, the flight crew applies a force in the direction of arrow B to move the frame 81 and projection 82 downward relative to the cam member 70. As shown in FIG. Figure 11B As shown, this force moves the protrusion 82 downward along the contact surface 77 and into alignment with the slot 74. Once aligned, the user can rotate the rear handle 55 and the rotary bolt 60 because the protrusion 82 can move into the slot 74. This rotation unlocks the lock 30.

[0101] The lock bar assembly 80 also includes a delay assembly 140 that is configured to delay the downward movement of the frame 81 to align the protrusion 82 with the slot 74 (and unlock the lock 30). Figure 4B and Figure 5BAs shown, the rear side 52 of the latch portion 50 includes a button 56. The button 56 enables a user to apply force (e.g., downward force) to move the frame 81 relative to the cam member 70 and unlock the lock 30. The delay assembly 140 is configured to allow the user to apply force for an extended period of time to move the frame 81 downward. In one example, the user needs to apply force for at least 7 seconds to move the frame 81 so that the protrusion 82 is aligned with the slot 74.

[0102] like Figure 12 As shown, the delay assembly 140 includes one or more dampers 141. The damper 141 includes a cylinder 144 that holds a fluid. A piston 148, including a rod 145 and a head 146, is movable relative to the cylinder 144. An opening 147 in the head 146 is provided to allow fluid to pass through the head 146 during movement of the piston 148. The delay assembly 140 also includes springs 142, 143 that act on the frame 81 and / or the damper 141.

[0103] 13A to 13C The interaction of the movement of the frame 81 and the delay assembly 140 is shown. The user applies a force D on the button 56 connected to the frame 81. This force causes the rod 145 to move into the cylinder 144. As the piston 148 moves into the cylinder 144, this movement is slowed by the displacement of fluid through the hole in the head 146. The frame 81 is connected to the piston 148 and moves downward as the piston 148 moves into the cylinder 144. After a period of time after the user applies force, the piston 148 and the frame 81 move so that the protrusion 82 on the frame 81 aligns with the slot 74 in the engagement member (see FIG. Figure 11B ). In this position, the rear handle 55 can be rotated by the user to unlock the lock 30. After the lock 30 is unlocked, the user releases the button 56. The springs 142, 143 apply force to move the piston 148 and the attached frame 81 upward to the starting position (see Figure 11A ).

[0104] The delay assembly 140 includes a catch 150 configured to prevent the lock 30 from unlocking in the event of a failure of the damper 141. Figure 14 and Figure 15 As shown, the delay assembly 140 includes a stop 150. The stop 150 is mounted adjacent to the locking bar assembly 80 and pivots about a pivot point 151. The stop 150 includes a generally L-shaped shape, wherein a first leg has a first end 154 and a second leg has a second end 155. A spring 152 applies a force (e.g., an upward force) at the first end 154 to position the stop 150 in a first pivot position, as shown. Figure 14 and Figure 15 shown.

[0105] When the user applies force to the button 56, the force is transferred to the damper 141. The damper 141 contacts the stop 150 along the first leg and causes the stop 150 to move from the first position ( Figure 15 ) pivot to Figure 16 The open position shown. Movement of the stop 150 compresses the spring 152 and moves the opposite end 155 away from the frame 81. This movement enables the frame 81 to move downward so that the protrusion 82 aligns with the slot 74 to allow the handle to rotate and unlock the lock.

[0106] If the delay assembly 140 is not operating correctly, the force applied to the button 56 will not move the cylinder 144 downward. This causes the stop 150 to remain in the first position. Figure 17 As shown, when a user applies force to button 56, end 155 of stop 150 contacts frame 81. Contact with end 155 prevents frame 81 from moving downward beyond a predetermined point. This prevents protrusion 82 from aligning with slot 74, and thus rear handle 55 cannot be rotated and lock 30 cannot be unlocked. In some examples, contact between stop 150 and frame 81 occurs between end 155 and notch 83 in frame 81.

[0107] In some examples, as shown, spring 152 is a compression spring positioned below end 154. In other examples, spring 152 is an extension spring positioned above end 154 and applies an upward force to end 154.

[0108] The lock 30 is also configured to unlock in the event that other locking components fail. For example, if the rotary bolt 60 fails to move from the locked position to the unlocked position. Figure 4A 、 Figure 4B As shown, fasteners 160 are mounted to the keyhole portion 40 to secure the front portion 44 and the rear portion 45 together. One or more fasteners 160 are inserted from the front side 41 of the keyhole portion 40, and one or more fasteners 160 are inserted from the rear side 42 of the keyhole portion 40. Figure 4A and Figure 4B An example includes two fasteners inserted from the front side 41 and three fasteners 160 inserted from the rear side 42 .

[0109] Figure 18A cross-sectional view of the keyhole portion 40 is shown to illustrate the fastener 160 installed from each direction. The fastener 160 includes an enlarged head 161 and a threaded shaft 162. If the bolt 60 cannot be rotated to unlock, the threaded fastener 160 can be removed and / or loosened to separate the front portion 44 and the rear portion 45. This expands the size of the receiving portion 43 and enables the rotating bolt 60 to be removed from the receiving portion 43 and open the lock 30. The fastener 160 is configured to be rotated multiple times to loosen the front portion 44 and the rear portion 45. Rotating the fastener 160 causes a time delay, preventing the user from immediately unlocking the lock 30 and then opening the blocked door 20.

[0110] In some examples, fasteners 160 include a retaining ring 163 positioned on threaded shaft 162. Retaining ring 163 is configured to constrain threaded shaft 162 after multiple rotations. This requires the user to sequentially rotate each of fasteners 160 by a limited amount, so that fasteners 160 loosen in equal, discrete amounts. For example, the first fastener 160 is unscrewed three turns, then the second fastener 160 is unscrewed three turns, and then the third fastener 160 is unscrewed three turns. This sequential rotation of fasteners 160 maintains alignment of retaining ring 163 relative to its corresponding threaded shaft 162. After completing the first set of rotations, fasteners 160 are sequentially rotated again to loosen by an additional limited amount. This sequential rotation requirement further increases the amount of time it takes for the user to unlock lock 30 and open blocked door 20.

[0111] In some embodiments, fastener 160 further includes a flange 164 that extends radially outward beyond head 161 and threaded shaft 162. The face of keyhole portion 40 to which fastener 160 is mounted includes a colored indicator 165. When fastener 160 is fully tightened, flange 164 extends over colored indicator 165 and visually obscures the colored indicator. When fastener 160 is unscrewed, flange 164 on fastener 160 moves away from colored indicator 165, thereby making colored indicator 165 visible. This enables personnel to quickly observe lock 30 and determine whether it has been tampered with and / or whether fastener 160 has been unscrewed. For example, during flight, a crew member passing through opening 113 can observe lock 30 to determine whether it has been tampered with.

[0112] In other examples, the fastener 160 includes a groove below the head 161. A colored indicator 165 is positioned in the groove. The colored indicator 165 is positioned slightly recessed into the surface of the latch body 49. Movement of the fastener 160 (such as unscrewing) makes the colored indicator 165 visible.

[0113] The lock 30 is provided with a visual indicator to visually show whether the lock 30 is unlocked or locked. Figure 4A and Figure 4BAs shown, both the front side 31 and the back side 32 include one or more windows that indicate status. Figure 4A The front side 31 of the lock 30 is shown with two indicators 34 , 35 . Figure 4B The rear side 32 of the lock 30 is shown including windows 36, 37. The number and positioning of the windows on the lock 30 may vary.

[0114] The rotating bolt 60 includes an indicator of window alignment based on the rotational position. Figure 10 In one example, the rotary bolt 60 includes a first indicator 65 having a first color (e.g., green) and a second indicator 66 having a different second color (e.g., red). When the rotary bolt 60 is in the unlocked position, one of the indicators 65, 66 aligns with one of the windows to visually indicate the position. Similarly, when the rotary bolt is in the locked position, the other of the indicators aligns with one of the windows. In one example, when the lock 30 is locked, the green indicator aligns with the window, and when the lock 30 is unlocked, the red indicator aligns with the window. Figure 10 Indicators 65, 66 are shown on a first side of the rotating bolt 60. This provides a visual indicator for one side of the lock 30 (e.g., the front side 31 or the rear side 32). In some examples, an indicator is also positioned on the other side of the rotating bolt 60 to align with a window on the other side of the lock 30. In some examples, the indicator and window are the same on the front side 31 and the rear side 32. Other examples include different windows and / or indicators on both sides 31, 32.

[0115] The time delay component may also include a visual indicator. In one example, the time delay indicator is visible only on the back side 32 of the lock 30. Figure 4B As shown, the window 37 is positioned on the rear side 32 of the lock 30. In some examples, the time delay window 37 is positioned proximate to the button 56 to provide a visual cue to the user. 13A to 13C As shown, the frame 81 of the locking lever assembly 80 includes indicators 93 aligned in a vertical row. Each indicator has a different visual appearance, such as a different color. During use, when the user applies force to the button 56 and the frame 81 slowly moves, different indicators 93 align with the window 37 and become visible in the window. This provides the user with a visual indication of the time remaining until the lock 30 can be unlocked. In one example, the first indicator 93 is red, indicating the locked position; the second indicator is yellow, indicating that the frame 81 has moved; and the third indicator is green, indicating that the lock 30 can be unlocked. In another example, the indicator includes three circles with different fill levels. The fill level within the circle indicates the amount of time remaining until the lock 30 can be unlocked.

[0116] The barrier door 20 can be installed in the cabin area 103 in a variety of different ways. The barrier door 20 can be mounted to one or more of the facilities 112, the floor, and the ceiling. In some examples, the barrier door 20 is mounted only to the floor and / or ceiling of the cabin area 103. The barrier door 20 is not mounted to the facilities 112. In some examples, this installation allows the barrier door 20 to be installed on existing aircraft 100 without requiring modifications to the facilities 112.

[0117] exist Figure 19 In some examples shown, the blocking door 20 is part of a door assembly 170. The door assembly 170 includes a frame 171 and the blocking door 20 having a lock 30. A hinge 172 connects the blocking door 20 to the frame 171 and enables the blocking door to pivot relative to the opening 113. The blocking door 20 is mounted in a frame that is mounted at the opening 113. Figure 19 In some examples shown, the frame 171 extends completely around the blocking door 20. In other examples, the frame 171 extends around a limited portion of the blocking door 20. In one example, the frame 171 extends around a single side of the blocking door 20 (such as a threshold connected to the floor 106) and a pair of opposing sides extending along the lateral sides of the blocking door 20. In some examples, the frame 171 is connected to the ceiling 105.

[0118] In some examples, the barrier door 20 is arranged to move along a particular direction between a folded configuration and an extended configuration. This provides structural stability in the event that a passenger applies pressure to the door from the passenger section 121. In one example, the panel 23 folds toward the passenger section when moving from the extended position to the stowed position.

[0119] like Figure 3A As shown, the blocking door 20 is completely outside the opening 113 when in the stowed position. This protects the panel 23 from damage, such as from being struck by luggage carried by passengers, a galley cart pushed through the opening 113, and people walking through the opening 113. In other examples, the blocking door 20 is partially within the opening 113 in the stowed position.

[0120] The barrier door 20 includes a plurality of panels 23 connected together by hinges. In some examples, the barrier door 20 includes two panels 23 connected along an inner edge by a hinge 25. In other examples, the barrier door 20 includes three or more panels 23 connected by a hinge 25.

[0121] The term "approximately" is used with reference to a quantity or measurement value to indicate that the feature, parameter, or value does not need to be achieved precisely. Rather, deviations or variations (including, for example, tolerances, measurement errors, measurement precision limitations, and other factors known to those skilled in the art) can occur in amounts that do not negate the effect that the feature is intended to provide.

[0122] Of course, without departing from the essential characteristics of the present invention, the present invention may be implemented in other ways than those specifically set forth herein. The present embodiments are to be considered in all respects as illustrative and not restrictive, and all changes falling within the meaning and equivalent scope of the appended claims are intended to be included therein.

[0123] Clause 1. A lock for a multi-panel door having a first panel and a second panel pivotally connected together, the lock comprising:

[0124] a keyhole portion 40 configured to be mounted to the first panel 23;

[0125] a latch portion 50 configured to be mounted to the second panel 23 , the latch portion 50 being selectively movable between an unlocked position away from the keyhole portion 40 and a locked position engaged with the keyhole portion 40 ; and

[0126] A hinge 33 pivotally connecting the keyhole portion 40 and the latch portion 50; and

[0127] The keyhole portion 40 and the latch portion 50 can selectively move around the hinge 33 so that the first panel 23 and the second panel 23 can pivot relative to each other.

[0128] Clause 2. A lock according to clause 1, wherein the keyhole portion 40 and the latch portion 50 are movable relative to each other between a closed position and an open position, wherein in the closed position the keyhole portion 40 and the latch portion 50 are aligned in a coplanar orientation, and in the open position the keyhole portion 40 and the latch portion 50 are aligned in an intersecting orientation.

[0129] Clause 3. The lock of Clause 1, wherein each of the keyhole portion 40 and the latch portion 50 includes a face 48, 58, and wherein the faces are positioned together in the closed position and the faces are spaced apart in the open position.

[0130] Clause 4. The lock of Clause 3, wherein the latch portion 50 includes a bolt 60 , and wherein in the closed position, the bolt 60 is configured to extend beyond the face 48 of the latch portion 50 .

[0131] Clause 5. The lock of Clause 4, further comprising a handle 53 positioned on the latch portion 50 , wherein the handle 53 is movable relative to the body 59 of the latch portion 50 and configured to control the position of the bolt 60 .

[0132] Clause 6. The lock according to Clause 5, wherein the handle 53 includes a front handle 54 and a rear handle 55, wherein the front handle 54 is exposed on the front side 51 of the latch portion 50 and the rear handle 55 is exposed on the rear side 52 of the latch portion 50.

[0133] Clause 7. The lock of clause 1, wherein the hinge 33 is configured to enable the keyhole portion 40 to pivot relative to the latch portion 50 to the front of the latch portion 50 and prevent the keyhole portion 40 from pivoting to the rear of the latch portion 50.

[0134] Clause 8. A lock according to clause 1, wherein the lock 30 includes a first side facing outward from the door in a first direction and a second side facing outward from the door in an opposite second direction, wherein the hinge 33 is mounted on the first side of the lock 30 and is configured to be accessible from the first side and not accessible from the second side when the door is in a closed position.

[0135] Clause 9. The lock of clause 1, wherein the lock 30 is configured to be installed in an aircraft.

[0136] Clause 10. A lock for a multi-panel door having a first panel and a second panel pivotally connected together, the lock comprising:

[0137] a keyhole portion 40 and a latch portion 50, the keyhole portion being configured to be mounted to the first panel 23 and the latch portion being configured to be mounted to the second panel 23, each of the keyhole portion 40 and the latch portion 50 including a body 49, 59 having a front side 41, 51, a rear side 42, 52, and a face 48, 58 extending between the front side and the rear side;

[0138] a receiving portion 43 extending into a face 48 of the keyhole portion 40;

[0139] A handle 53 and a bolt 60 are mounted to the latch portion 50; and

[0140] A hinge 33 connected to the keyhole portion 40 and the latch portion 50; and

[0141] The keyhole portion 40 and the latch portion 50 are selectively movable around the hinge 33 between a closed position and an open position;

[0142] wherein, in the closed position, the faces 48 , 58 of the eye portion 40 and the latch portion 50 face each other, so that the bolt 60 can extend into the receiving portion 43 , thereby locking the lock; and

[0143] In the open position, the faces 48 , 58 of the eyelet portion 40 and the latch portion 50 face away from each other.

[0144] Clause 11. The lock of Clause 10, wherein the hinge 33 is configured to enable relative pivotal movement between the first panel 23 and the second panel 23.

[0145] Clause 12. The lock of Clause 10, wherein the hinge 33 is positioned on a front side 41 , 51 of each of the keyhole portion 40 and the latch portion 50 .

[0146] Clause 13. The lock of Clause 10, wherein the hinge 33 is a piano hinge.

[0147] Clause 14. The lock of Clause 10, wherein the faces 48, 58 of the keyhole portion 40 and the latch portion 50 abut one another in the closed position.

[0148] Clause 15. The lock of Clause 10, wherein the hinge 33 has a straight shape.

[0149] Clause 16. The lock of clause 10, wherein each of the keyhole portion 40 and the latch portion 50 includes a body 49, 59, wherein the body 49 of the keyhole portion 40 is configured to fit within the first panel 23, and the body 59 of the latch portion 50 is configured to fit within the second panel 23.

[0150] Clause 17. The lock of clause 10, wherein the handle 53 comprises a first handle 54 positioned on the front side 51 of the latch portion 50 and a second handle 55 positioned on the rear side 52 of the latch portion 50, wherein the bolt 60 is positioned between the first handle 54 and the second handle 55.

[0151] Clause 18. A method of operating a door, the method comprising:

[0152] engaging the lock 30 with the latch portion 50 of the lock 30 on the second panel 23 of the door 20 and the keyhole portion 40 of the lock 30 on the first panel 23 of the door 20 to lock the door 20 in an extended configuration across the opening 113;

[0153] Unlocking the lock 30 and pivoting the first panel 23 relative to the second panel 23 and pivoting the latch portion 50 relative to the keyhole portion 40; and

[0154] The door 20 is folded into the folded configuration by folding the second panel 23 and the latch portion 50 together with the first panel 23 and the eyelet portion 40 .

[0155] Clause 19. The method of Clause 18, further comprising positioning the door 20 in the folded configuration along an edge of the opening 113.

[0156] Clause 20. The method of Clause 18, wherein unlocking the lock 30 comprises turning a handle 53 on the latch portion 50 to rotate a bolt 60 out of a receiving portion 43 in the keyhole portion 40.

[0157] Clause 21. The method of Clause 18, further comprising aligning the keyhole portion 40 and the latch portion 50 in a coplanar orientation with the door in the extended configuration.

[0158] Clause 22. The method of Clause 18, further comprising rotating a handle 53 on the latch portion 50 and moving a bolt 60 of the latch portion 50 into a receiving portion 43 in the keyhole portion 40.

[0159] Clause 23. The method of Clause 18, further comprising positioning the hinge 33 of the lock 30 on the front side 31 of the door 20 with the door 20 in the extended position.

[0160] Clause 24. The method of Clause 18, further comprising positioning the door across the opening 113 in the cabin area of ​​the aircraft.

[0161] Clause 25. The method of Clause 18, further comprising positioning the door away from the opening 113 to enable passengers of the aircraft to move through the opening 113.

[0162] Clause 26. A method of locking a door, the method comprising:

[0163] unfolding the first panel 23 and the second panel 23 of the door 20 and unfolding the lock 30 including the first portion 40 attached to the first panel 23 and the second portion 50 attached to the second panel 23;

[0164] extending the door 20 across the opening 113 to be in an extended configuration and aligning the first portion 40 and the second portion 50 of the lock 30;

[0165] locking the lock 30 when in the extended configuration and preventing the door 20 from being folded;

[0166] Unlocking the lock 30 and folding the first panel 23 and the second panel 23 out of the opening 113; and

[0167] Folding the lock 30 folds the first panel 23 and the second panel 23 simultaneously.

[0168] Clause 27. The method of Clause 26, further comprising extending the door 20 across the opening 113 and aligning the first portion 40 and the second portion 50 of the lock 30 in a coplanar orientation.

[0169] Clause 28. The method of Clause 27, further comprising moving the door 20 out of the opening 113 and aligning the first portion 40 and the second portion 50 of the lock 30 in a crossing orientation.

[0170] Clause 29. The method of Clause 26, further comprising rotating a handle 53 on the second portion 50 of the lock to engage a bolt 60 with the first portion 40, thereby locking the lock 30.

[0171] Clause 30. The method according to Clause 26 further includes: folding the door 20 and simultaneously pivoting the first panel 23 and the second panel 23 around the panel hinge 25 and pivoting the first part 40 and the second part 50 around the lock hinge 33, wherein the panel hinge 25 and the lock hinge 33 are aligned along a straight line.

[0172] Clause 31. A door assembly configured to be installed in an opening within an aircraft interior, the door assembly comprising:

[0173] Framework 171;

[0174] a door 20 mounted in the frame 171 and comprising a first panel 23 and a second panel 23;

[0175] Lock 30, including:

[0176] a keyhole portion 40 configured to be mounted to the first panel 23 , the keyhole portion 40 including a receiving portion 43 ;

[0177] a latch portion 50 configured to be mounted to the second panel 23 , the latch portion 50 including a bolt 60 selectively movable between an unlocked position away from the receiving portion 43 and a locked position positioned in the receiving portion 43 ; and

[0178] A hinge 33 pivotally connecting the keyhole portion 40 and the latch portion 50; and

[0179] The keyhole portion 40 and the latch portion 50 can selectively move around the hinge 33 so that the first panel 23 and the second panel 23 can pivot relative to each other.

[0180] Clause 32. The door assembly of Clause 31, wherein the frame extends completely around the door 20.

[0181] Clause 33. The door assembly of Clause 31, wherein the door 20 includes a front side and a rear side, and wherein the hinge 33 is positioned on the front side.

[0182] Clause 34. A door assembly according to clause 31, wherein the door 20 is movable between a folded configuration in which the eyelet portion 40 and the latch portion 50 are folded together about the hinge 33 and an extended configuration in which the eyelet portion 40 and the latch portion 50 are aligned in a plane.

[0183] Clause 35. The door assembly of clause 34, wherein each of the eyelet portion 40 and the latch portion 50 includes a face 48 , 58 , and wherein the faces are positioned together in the closed position and the faces are spaced apart in the open position.

[0184] Clause 36. The door assembly of Clause 31, wherein the door assembly is installed in an opening within an aircraft interior.

Claims

1. A lock for a multi-panel door having a first panel and a second panel pivotally connected together, the lock comprising: a keyhole portion (40) configured to be mounted to the first panel (23); a latch portion (50) configured to be mounted to the second panel (23), the latch portion (50) being selectively movable between an unlocked position away from the keyhole portion (40) and a locked position engaged with the keyhole portion (40); as well as a hinge (33) pivotally connecting the keyhole portion (40) and the latch portion (50); and The keyhole portion (40) and the latch portion (50) are selectively movable around the hinge (33) to enable relative pivotal movement between the first panel (23) and the second panel (23).

2. The lock according to claim 1, wherein: The keyhole portion (40) and the latch portion (50) are relatively movable between a closed position and an open position, wherein in the closed position the keyhole portion (40) and the latch portion (50) are aligned in a coplanar orientation, and in the open position the keyhole portion (40) and the latch portion (50) are aligned in an intersecting orientation.

3. The lock according to claim 1, wherein: Each of the keyhole portion (40) and the latch portion (50) includes faces (48, 58), and wherein the faces are positioned together in a closed position and the faces are spaced apart in an open position.

4. The lock according to claim 3, wherein: The latch portion (50) includes a bolt (60), and in the closed position, the bolt (60) is configured to extend outwardly of a face (48) of the latch portion (50).

5. The lock according to claim 4, further comprising a handle (53) positioned on the latch portion (50), wherein The handle (53) is movable relative to the body (59) of the latch portion (50) and is configured to control the position of the bolt (60).

6. The lock according to claim 5, wherein: The handle (53) includes a front handle (54) and a rear handle (55), wherein the front handle (54) is exposed at the front side (51) of the latch portion (50) and the rear handle (55) is exposed at the rear side (52) of the latch portion (50).

7. The lock according to claim 1, wherein: The hinge (33) is configured to enable the keyhole portion (40) to pivot relative to the latch portion (50) to the front of the latch portion (50) and prevent the keyhole portion (40) from pivoting to the rear of the latch portion (50).

8. The lock according to claim 1, wherein: The lock (30) includes a first side facing outward from the door in a first direction and a second side facing outward from the door in an opposite second direction, wherein the hinge (33) is mounted on the first side of the lock (30) and is configured to be accessible from the first side and inaccessible from the second side when the door is in a closed position.

9. The lock according to claim 1, wherein: The lock (30) is configured to be installed in an aircraft.

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