# US 12,110,716 B2 · Aircraft seat module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,110,716 B2 - Document ID: US12110716B2 - Status: Granted - Kind: B2 - Application number: 18/001,386 - Filed: 2021-05-17 - Published: 2023-08-24 - Granted: 2024-10-08 - Earliest claimed: 2020-06-12 - Assignees: RECARO Aircraft Seating GmbH & Co. KG - Applicants: RECARO Aircraft Seating GmbH & Co. KG - Inventors: Alexander Rechlin - Web page: https://patentgrep.com/patent/US12110716B2 ## CPC - E05B 81/08: using electromagnets or solenoids - B64D 11/06: {Arrangements of seats, or adaptations or details specially adapted for aircraft seats (crew seat constructions for emergency purposes B64D25/04)} - B64D 11/0606: {with privacy shells, screens, separators or the like (class dividers B64D11/0023)} - E05B 41/00: Locks with visible indication as to whether the lock is locked or unlocked {(indicator lights E05B17/10)} - E05B 81/18: to effect movement of a bolt or bolts (E05B81/20 takes precedence) - E05B 81/28: Linearly reciprocating elements - E05B 81/70: the wing position - E05C 1/08: with latching action - E05C 17/56: by magnetic or electromagnetic attraction {or operated by electric or electromagnetic means (for closed wings E05C19/16)}; (operation of locks or fasteners by electric or magnetic means E05B47/00) - E05C 17/60: holding sliding wings open {(E05C17/443, E05C17/54 take precedence)} - E05B: LOCKS; ACCESSORIES THEREFOR; HANDCUFFS - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - E05C: BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS (latching means for sideboard or tailgate structures for vehicles B62D, {B62D33/02}; fastening devices for constructional or engineering elements E04, F16B; locks, fastening devices structurally or operatively combined or having significant cooperation with locks E05B; means for operating or controlling wing fasteners in conjunction with mechanisms for moving the wing E05F) ## Abstract An aircraft seat module having a flight passenger seating area has a door unit which in at least one operating state is configured at least to close a passage region to the flight passenger seating area, and has a locking device for the door unit, which is configured to lock the door unit in an open position, in particular a maximally open stowage position, and to this end comprises at least one actuator device which has at least two movably supported locking elements, which are in each case adjustable between a locking position and an unlocking position, wherein that the locking device has a locking state indication unit which at least in the maximally open position of the door unit is configured to detect and indicate incomplete locking of at least one of the two locking elements. ## Claims ### Claim 1 An aircraft seat module having a flight passenger seating area, with a door unit which in at least one operating state is configured at least to close a passage region to the flight passenger seating area, with a locking device for the door unit, which is configured to lock the door unit in an open position, in particular a maximally open stowage position, and to this end comprises at least one actuator device which has at least two movably supported locking elements, which are in each case adjustable between a locking position and an unlocking position, wherein the locking device has a locking state indication unit which at least in the maximally open position of the door unit is configured to detect and indicate incomplete locking of at least one of the two locking elements. ### Claim 2 (depends on 1) The aircraft seat module as claimed in claim 1, wherein the locking state indication unit has an indication unit which indicates incomplete locking of one of the two locking elements, is disposed separately from the locking elements and is preferably disposed in an upper region of the door unit. ### Claim 3 (depends on 1) The aircraft seat module as claimed in claim 1, wherein the locking state indication unit in the event of incomplete locking of one of the locking elements is configured to permit a displacement of the locked door unit by an indication length in the closing direction. ### Claim 4 (depends on 1) The aircraft seat module as claimed in claim 1, wherein the locking state indication unit has at least one rocker element which is configured to contact the locking elements in their locking position. ### Claim 5 (depends on 4) The aircraft seat module as claimed in claim 4, wherein the rocker element is supported so as to be pivotable around a pivot axis which runs coaxially with the axes of movement of the locking elements and is equidistant from the axes of movement of the locking elements. ### Claim 6 (depends on 4) The aircraft seat module as claimed in claim 4, wherein the rocker element in the event of incomplete locking of one of the locking elements is configured to be tilted by the other locking element and, as a result, to permit a displacement of the locked door unit by an indication length in the closing direction. ### Claim 7 (depends on 1) The aircraft seat module as claimed in claim 1, wherein the locking state indication unit comprises at least one sensor device which is configured to, in particular indirectly, detect incomplete locking of one of the locking elements. ### Claim 8 (depends on 7) The aircraft seat module as claimed in claim 7, wherein the sensor device is realized integrally with a sensor device that is embodied as a door position sensor. ### Claim 9 (depends on 1) The aircraft seat module as claimed in claim 1, wherein the indication unit is at least partially implemented by the door unit. ### Claim 10 (depends on 1) The aircraft seat module as claimed in claim 1, wherein the locking state indication unit for each locking element has one spring-loaded indication element, said spring-loaded indication elements, in the event of the door unit being locked by the respective locking element in the locking position, being configured to be deflected from a first position to a second position. ### Claim 11 (depends on 9) The aircraft seat module as claimed in claim 9, wherein the locking state indication unit has at least one viewing window through which a position of at least one of the indication elements can be seen. ### Claim 12 (depends on 1) The aircraft seat module as claimed at least in claim 1, wherein the locking state indication unit is of a purely mechanical implementation. ### Claim 13 (depends on 1) A locking state indication unit for an aircraft seat module as claimed in claim 1.