Door which is intended to be positioned between the cockpit and the cabin of an aircraft
First Claim
1. Door designed to be inserted between a cockpit and a cabin of an aircraft, said door having a cockpit side and a cabin side, characterised in that it comprises at least one trapdoor capable of firstly closing off a passageway provided through said door and secondly of opening towards the cabin side of this door, the door also comprising a mechanism for locking/unlocking of the trapdoor at least one arranged on the cockpit side of the door and capable of automatically unlocking the trapdoor at least one when the difference between a cockpit pressure corresponding to the air pressure applied against the cockpit side of said door and a cabin pressure corresponding to the air pressure applied against the cabin side of said door, is greater than a predetermined value, characterised in that the locking/unlocking mechanism is mounted on the trapdoor at least one of the door, the locking/unlocking mechanism comprising:
- a secondary trapdoor comprising a first surface and a second surface, the first surface being subject to the cockpit pressure,a membrane defining a chamber and being provided with a first end and a second end, the first end being fixed to the second surface of the secondary trapdoor, and the second end being fixed to a portion of the trapdoor at least one provided with at least one through orifice, at least a part of the second surface of the secondary trapdoor subjected to cabin pressure, andmeans of transmission of movement connected firstly to the secondary trapdoor capable of moving when the cockpit pressure and the cabin pressure are different, and secondly to at least one bolt that cooperates with a trapdoor frame provided on the door and defining said passageway,the secondary trapdoor comprising an upper end and a lower end, the lower end being connectedly hinged onto the trapdoor and the upper end being connectedly hinged to the movement transmission means.
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Accused Products
Abstract
The invention relates to a door (8) designed to be inserted between a cockpit and a cabin of an aircraft, the door comprising a cockpit side (8a) and a cabin side (8b). According to the invention, the door comprises at least one trapdoor (22) capable of closing off a passageway (20) passing through the door and secondly being opened towards the cabin side, the door also comprising a locking/unlocking mechanism (30) of the trapdoor arranged on the cockpit side and that can automatically unlock the trapdoor when the difference between a cockpit pressure and a cabin pressure corresponding to the air pressures applied on the cockpit side and the cabin side of the door respectively is greater than a predetermined value.
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Citations
21 Claims
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1. Door designed to be inserted between a cockpit and a cabin of an aircraft, said door having a cockpit side and a cabin side, characterised in that it comprises at least one trapdoor capable of firstly closing off a passageway provided through said door and secondly of opening towards the cabin side of this door, the door also comprising a mechanism for locking/unlocking of the trapdoor at least one arranged on the cockpit side of the door and capable of automatically unlocking the trapdoor at least one when the difference between a cockpit pressure corresponding to the air pressure applied against the cockpit side of said door and a cabin pressure corresponding to the air pressure applied against the cabin side of said door, is greater than a predetermined value, characterised in that the locking/unlocking mechanism is mounted on the trapdoor at least one of the door, the locking/unlocking mechanism comprising:
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a secondary trapdoor comprising a first surface and a second surface, the first surface being subject to the cockpit pressure, a membrane defining a chamber and being provided with a first end and a second end, the first end being fixed to the second surface of the secondary trapdoor, and the second end being fixed to a portion of the trapdoor at least one provided with at least one through orifice, at least a part of the second surface of the secondary trapdoor subjected to cabin pressure, and means of transmission of movement connected firstly to the secondary trapdoor capable of moving when the cockpit pressure and the cabin pressure are different, and secondly to at least one bolt that cooperates with a trapdoor frame provided on the door and defining said passageway, the secondary trapdoor comprising an upper end and a lower end, the lower end being connectedly hinged onto the trapdoor and the upper end being connectedly hinged to the movement transmission means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. Door designed to be inserted between a cockpit and a cabin of an aircraft, said door having a cockpit side and a cabin side, the door comprising:
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at least one trapdoor capable of firstly closing off a passageway provided through said door and secondly of opening towards the cabin side, the trapdoor at least one includes a locking/unlocking mechanism arranged on the cockpit side and capable of automatically unlocking the trapdoor at least one when a difference between a cockpit pressure corresponding to the air pressure applied against the cockpit side of said door and a cabin pressure corresponding to the air pressure applied against the cabin side is greater than a predetermined value, the locking/unlocking mechanism mounted on the trapdoor at least one and including; a secondary trapdoor comprising a first surface and a second surface, the first surface being subject to the cockpit pressure; a membrane defining a chamber and being provided with a first end and a second end, the first end being fixed to the second surface of the secondary trapdoor, and the second end being fixed to a portion of the trapdoor at least one provided with at least one through orifice, wherein at least a part of the second surface of the secondary trapdoor is subjected to cabin pressure; and a transmission element coupled to the secondary trapdoor, wherein the transmission element is capable of being moved when the cockpit pressure and the cabin pressure are different, the transmission element coupled to at least one bolt that cooperates with a trapdoor frame provided on the door and defining said passageway, the locking/unlocking mechanism including an anti-acceleration element configured to stop the movement of a transmission rod when the transmission rod is moving at a speed greater than a predetermined speed.
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19. Door designed to be inserted between a cockpit and a cabin of an aircraft, said door having a cockpit side and a cabin side, the door comprising:
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at least one trapdoor capable of firstly closing off a passageway provided through said door and secondly of opening towards the cabin side, the trapdoor at least one includes a locking/unlocking mechanism arranged on the cockpit side and capable of automatically unlocking the trapdoor at least one when a difference between a cockpit pressure corresponding to the air pressure applied against the cockpit side of said door and a cabin pressure corresponding to the air pressure applied against the cabin side is greater than a predetermined value, the locking/unlocking mechanism mounted on the trapdoor at least one and including; a secondary trapdoor comprising a first surface and a second surface, the first surface being subject to the cockpit pressure; a membrane defining a chamber and being provided with a first end and a second end, the first end being fixed to the second surface of the secondary trapdoor, and the second end being fixed to a portion of the trapdoor at least one provided with at least one through orifice, wherein at least a part of the second surface of the secondary trapdoor is subjected to cabin pressure, the portion of the trapdoor at least one covered by a filter arranged on the cabin side of said door and concealing the location of each orifice, said filter being held in contact with the trapdoor at least one by a bullet-proof protection grill assembled on said trapdoor at least one; and a transmission element coupled to the secondary trapdoor, wherein the transmission element is capable of being moved when the cockpit pressure and the cabin pressure are different, the transmission element coupled to at least one bolt that cooperates with a trapdoor frame provided on the door and defining said passageway.
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20. Door designed to be inserted between a cockpit and a cabin of an aircraft, said door having a cockpit side and a cabin side, the door comprising:
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at least one trapdoor capable of firstly closing off a passageway provided through said door and secondly of opening towards the cabin side, the trapdoor includes a locking/unlocking mechanism arranged on the cockpit side and capable of automatically unlocking the trapdoor at least one when a difference between a cockpit pressure corresponding to the air pressure applied against the cockpit side of said door and a cabin pressure corresponding to the air pressure applied against the cabin side is greater than a predetermined value, the locking/unlocking mechanism mounted on the trapdoor at least one and including; a secondary trapdoor comprising a first surface and a second surface, the first surface being subject to the cockpit pressure, a balancing system for the secondary trapdoor configured to prevent any movement of the secondary trapdoor to avoid unlocking of the trapdoor following an external shock applied to said door; a membrane defining a chamber and being provided with a first end and a second end, the first end being fixed to the second surface of the secondary trapdoor, and the second end being fixed to a portion of the trapdoor at least one provided with at least one through orifice, wherein at least a part of the second surface of the secondary trapdoor is subjected to cabin pressure; and a transmission element coupled to the secondary trapdoor, wherein the transmission element is capable of being moved when the cockpit pressure and the cabin pressure are different, the transmission element coupled to at least one bolt that cooperates with a trapdoor frame provided on the door and defining said passageway.
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21. Door designed to be inserted between a cockpit and a cabin of an aircraft, said door having a cockpit side and a cabin side, the door comprising:
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at least one trapdoor capable of firstly closing off a passageway provided through said door and secondly of opening towards the cabin side, the trapdoor includes a locking/unlocking mechanism arranged on the cockpit side and capable of automatically unlocking the trapdoor at least one when a difference between a cockpit pressure corresponding to the air pressure applied against the cockpit side of said door and a cabin pressure corresponding to the air pressure applied against the cabin side is greater than a predetermined value, the locking/unlocking mechanism mounted on the trapdoor at least one and including; a secondary trapdoor comprising a first surface and a second surface, the first surface being subject to the cockpit pressure, a membrane defining a chamber and being provided with a first end and a second end, the first end being fixed to the second surface of the secondary trapdoor, and the second end being fixed to a portion of the trapdoor at least one provided with at least one through orifice, wherein at least a part of the second surface of the secondary trapdoor is subjected to cabin pressure; and a transmission element coupled to the secondary trapdoor, wherein the transmission element is capable of being moved when the cockpit pressure and the cabin pressure are different, the transmission element coupled to at least one bolt that cooperates with a trapdoor frame provided on the door and defining said passageway, the transmission element including a stop element having an inertial mass configured to automatically move from a withdrawn position to a stop position following a shock that occurs on the door with an intensity greater than or equal to a predetermined intensity.
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Specification