# US 10,118,703 B2 · Armrest for aircraft seat, associated seat and process > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,703 B2 - Document ID: US10118703B2 - Status: Granted - Kind: B2 - Application number: 15/489,680 - Filed: 2017-04-17 - Published: 2017-10-19 - Granted: 2018-11-06 - Earliest claimed: 2016-04-18 - Assignees: Dassault Aviation - Applicants: Dassault Aviation - Inventors: Michel Mihai; Gaëtan Lamothe - Web page: https://patentgrep.com/patent/US10118703B2 ## CPC - B64D 11/0644: {Adjustable arm rests} - B60N 2/753: {movable to an inoperative position} - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR ## Abstract Armrest for aircraft seat, associated seat and process are provided. The armrest includes a stationary part (12) intended to be connected to the seat, a moving part (14) movable relative to the stationary part (12), between a high position in which the moving part (14) is intended to protrude above a seat bottom of the seat and a low position, and a maneuvering mechanism (18) able to guide the movement of the moving part (14) between the high position and the low position. The maneuvering mechanism (18) includes at least a first connecting rod (26) and a second connecting rod (27), each independently connecting the stationary part (12) to the moving part (14), the first connecting rod (26) and the second connecting rod (27) being arranged parallel to one another during the movement of the moving part (14) between the high position and the low position. ## Claims ### Claim 1 An armrest for an aircraft seat comprising: a stationary part configured to be connected to the seat; a movable part movable relative to the stationary part, between a high position in which the moving part is intended to protrude above a seat bottom of the seat and a low position; a maneuvering mechanism configured to guide the movement of the movable part between the high position and the low position, the maneuvering mechanism including at least a first connecting rod and a second connecting rod, each independently connecting the stationary part to the movable part, the first connecting rod and the second connecting rod being arranged parallel to one another during the movement of the movable part between the high position and the low position. ### Claim 2 (depends on 1) The armrest according to claim 1, wherein the maneuvering mechanism includes a third connecting rod connecting the stationary part to the movable part, the third connecting rod being arranged parallel to the first connecting rod and the second connecting rod during the movement of the movable part between the high position and the low position. ### Claim 3 (depends on 2) The armrest according to claim 2, wherein the first connecting rod, the second connecting rod and the third connecting rod are mounted rotatingly on the stationary part respectively around a first rotation axis, a second rotation axis and a third rotation axis, the third rotation axis being situated separated from a plane containing the first rotation axis and the second rotation axis. ### Claim 4 (depends on 1) The armrest according to claim 1, wherein the maneuvering mechanism includes a member stressing the movable part toward the high position. ### Claim 5 (depends on 4) The armrest according to claim 4, wherein, from an intermediate position between the high position and the low position, the member stressing the movable part is configured to stress the movable part toward the low position. ### Claim 6 (depends on 4) The armrest according to claim 4, wherein the stressing member includes a pneumatic cylinder connected at a first end to the movable part, and at a second end to one of the first connecting rod or the second connecting rod. ### Claim 7 (depends on 6) The armrest according to claim 6, wherein the second end of the pneumatic cylinder is articulated to one end of the first connecting rod or the second connecting rod, the second end of the pneumatic cylinder being rotatable jointly with the end of the connecting rod. ### Claim 8 (depends on 1) The armrest according to claim 1, including a trim cover defining an upper surface for bearing of a user's arm, the trim cover being supported by the movable part and hiding the stationary part and the maneuvering mechanism. ### Claim 9 (depends on 8) The armrest according to claim 8, wherein the movable part defines a central recess, the trim cover defining a through opening coinciding with the central recess, the maneuvering mechanism and the stationary part being situated separated from the central recess and the through opening. ### Claim 10 (depends on 1) The armrest according to claim 1, including at least one connection configured to connect the stationary part to the seat, the movable part defining a passage aperture for the connection connecting the stationary part to the seat, during the movement of the movable part between the high position and the low position. ### Claim 11 (depends on 10) The armrest according to claim 10, wherein the passage aperture is in the form of an arc of circle. ### Claim 12 (depends on 1) The armrest according to claim 1, further comprising a releasable locking system for locking the movable part in the high position and/or the low position. ### Claim 13 (depends on 1) The armrest according to claim 1, wherein the stationary part is L-shaped. ### Claim 14 (depends on 1) An aircraft seat, including: a framework, a seat bottom mounted on the framework, a seatback mounted on the framework, and at least one of the armrest according to claim 1, the stationary part being fastened on the framework. ### Claim 15 (depends on 1) A method for maneuvering an armrest according to claim 1 comprising: moving, from the low position of the movable part, the movable part toward the high position via the maneuvering mechanism, the first connecting rod and the second connecting rod remaining parallel to one another between the low position and the high position. ### Claim 16 (depends on 15) The method according to claim 15, the armrest including a member stressing the movable part toward the high position, the method including, from the high position of the movable part, the following steps: moving the movable part toward the low position, by exerting a force against the stressing member, to an intermediate position between the high position and the low position, and past the intermediate position, stressing the movable part toward the low position via the stressing member.