Lock mechanism for aircraft passenger seat

Patent metadata

Field	Value
Publication number	US-2017313427-A1
Application number	US-201415531815-A
Country	US
Kind code	A1
Filing date	Dec 22, 2014
Priority date	Dec 22, 2014
Publication date	Nov 2, 2017
Grant date	—

Abstract

In order to improve ease of maintenance of an aircraft passenger seat, the aircraft passenger seat 100 is adapted to be changeable between an upright position and a bed mode position at which the backrest is folded forward. A mechanism for locking the seat at each of the positions is provided with lock pins 350 provided on both sides of the backrest, a handle unit 200 mounted to a rear face of the backrest, and two wires 300 for connecting the handle unit 200 and the lock pins 350. A structure for connecting the wires 300 to the handle unit 200 is improved to facilitate the maintenance of the wires and to make the handle unit lightweight.

First claim

1 . A lock mechanism for aircraft passenger seat comprising an upright position in which a backrest is positioned upright, and a bed mode position in which the backrest is folded forward,
wherein the lock mechanism comprises lock pins provided on both sides of the backrest locking the backrest at positions corresponding to the upright position and the bed mode position, a handle unit provided on a rear face of the backrest, and two wires connecting the handle unit and the lock pins; and a bracket of the handle unit comprises a center hole provided at a center of the bracket, a pair of wire mounting holes to which each of the wires provided in the center hole are mounted, and a pair of slits communicating the wire mounting holes with the center hole.

2 . The lock mechanism for aircraft passenger seat according to claim 1 ,
wherein the slit comprises a dimension allowing a metal wire provided within each wire to pass through the slit.

3 . The lock mechanism for aircraft passenger seat according to claim 1 ,
wherein the center hole comprises a dimension allowing a wire mounting terminal member mounting an end portion of the metal wire to the handle side to pass through the center hole.

4 . The lock mechanism for aircraft passenger seat according to claim 1 ,
wherein the bracket of the handle unit is formed of aluminum alloy.

Assignees

• Jamco Corp

Inventors

• Uriu Tsukasa
• Tagami Nozomu
• Ozaki Masaji

Classifications

• B64D11/0641 Primary

  Seats convertible into beds · CPC title

• B64D11/0624

  Arrangements of electrical connectors, e.g. for earphone, internet or electric supply · CPC title

• F16B7/1454

  with a clamp locking the telescoping members by swinging a handle provided with a locking cam (F16B7/1418 takes precedence) · CPC title

• B60N2/34 Primary

  into a bed · CPC title

• B64D11/06

  Arrangements of seats, or adaptations or details specially adapted for aircraft seats (crew seat constructions for emergency purposes B64D25/04) · CPC title