# US 11,999,486 B2 · Device for closing a passage between two seat units > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,999,486 B2 - Document ID: US11999486B2 - Status: Granted - Kind: B2 - Application number: 17/414,924 - Filed: 2019-12-10 - Published: 2022-03-03 - Granted: 2024-06-04 - Earliest claimed: 2018-12-18 - Assignees: Safran Seats - Applicants: Safran Seats - Inventors: Mathieu Thomas; Lorene Perrin; Julien Layet - Web page: https://patentgrep.com/patent/US11999486B2 ## CPC - B64D 11/0023: {Movable or removable cabin dividers, e.g. for class separation} - B64D 11/0606: {with privacy shells, screens, separators or the like (class dividers B64D11/0023)} - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT ## Abstract A closure device for a passage located in a cabin of an aircraft including a door panel and a first carriage having first guide means (slide device) for translationally guiding the first carriage and second guide means (guiding groove) for translationally guiding the door panel. A first locking system is able to assume a locked state, in which the first locking system provides a mechanical connection between the door panel and the first carriage and is able to transition to an unlocked state, in which the door panel is disengaged from the carriage. ## Claims ### Claim 1 A closing device for a passage in an aircraft cabin, comprising: a door panel, and a first carriage comprising first guiding means for translating said first carriage with respective to a fixed element in a sliding direction, characterized in that said first carriage comprises second guiding means for translating the door panel with respect with said first carriage in said sliding direction, and a first locking system being able to come into a locked state in which the first locking system provides a mechanical connection between the door panel and the first carriage, so that the door panel is translatable together with the first carriage via said first guiding means, said first locking system being able to come into an unlocked state, in which the door panel is disengaged from the first carriage, so that the door panel alone is translatable via said second guiding means. ### Claim 2 (depends on 1) The closing device according to claim 1, characterized in that the first guiding means comprise a slide device. ### Claim 3 (depends on 1) The closing device according to claim 1, characterized in that the second guiding means comprise a guiding groove in one of the elements of the first carriage and the door panel and a male portion with complementary shape provided in the other element of said first carriage and the door panel. ### Claim 4 (depends on 3) The closing device according to claim 3, characterized in that the guiding groove has a dovetail-shaped section. ### Claim 5 (depends on 1) The closing device according to claim 1, characterized in that the first locking system comprises a rotary cam, said cam being arranged inside a housing into which opens a release groove. ### Claim 6 (depends on 5) The closing device according to claim 5, characterized in that the cam is movable between: a locking position in which said cam abuts against one end of the release groove, and an unlocking position in which an axis of the cam is aligned with an axis of the release groove to allow a relative movement of the door panel with respect to the first carriage. ### Claim 7 (depends on 5) The closing device according to the claim 5, characterized in that it comprises a control device for controlling a movement of the cam from one position to another. ### Claim 8 (depends on 7) The closing device according to claim 7, wherein the control device comprises cables. ### Claim 9 (depends on 1) The closing device according to claim 1, characterized in that it comprises a second carriage provided with a damping pinion for damping a movement of the door panel and cooperating with a rack mounted on a the fixed element. ### Claim 10 (depends on 9) The closing device according to claim 9, characterized in that the second carriage comprises vertical guiding means for vertically translating said second carriage with respect to the door panel and a second locking system being able to come into a locked state in which said locking system maintains the second carriage in an upper position so that teeth of the damping pinion cooperate with the rack, and into an unlocked state in which said second carriage can move into a lower position so that the teeth of the damping pinion are removed from the rack. ### Claim 11 (depends on 10) The closing device according to claim 10, characterized in that the second locking system comprises a cam and a corresponding notch in the door panel, said cam being rotatable between a first position in which a first peripheral portion of the cam abuts against an upper end of the notch so that the second carriage is in the upper position and a second position in which a second peripheral portion of the cam abuts against the upper end of the notch so that the second carriage is in the lower position. ### Claim 12 (depends on 11) The closing device according to claim 11, characterized in that in comprises a control device for controlling a movement of the cam from one position to another. ### Claim 13 (depends on 1) The closing device according to claim 1, characterized in that it comprises a blocking system for the door panel in a stored position. ### Claim 14 (depends on 13) The closing device according to claim 13, characterized in that the blocking system comprises an electric linear actuator including a rod translatable between a released position in which the rod is disengaged from a corresponding housing in a portion of the first carriage and a locking position in which the rod cooperates with the housing of the first carriage to prevent any movement of the door panel. ### Claim 15 (depends on 1) The closing device according to claim 1, characterized in that it comprises a device for automatically deploying the door panel from a stored position to a deployed position. ### Claim 16 (depends on 15) The closing device according to claim 15, characterized in that the automatic deployment device comprises an elastic strap as well as a plurality of guiding means for said strap, such as pulleys, arranged between a first end of said strap fixed to the door panel and a second end of said strap fixed to a fixed part. ### Claim 17 (depends on 16) The closing device according to claim 16, wherein the plurality of guiding means comprise pulleys. ### Claim 18 (depends on 1) The closing device according to claim 1, wherein said first locking system being able to come into the unlocked state in the event of a malfunction.