Aircraft passenger seat

Patent metadata

Field	Value
Publication number	US-10232943-B2
Application number	US-201415309587-A
Country	US
Kind code	B2
Filing date	Nov 14, 2014
Priority date	May 9, 2014
Publication date	Mar 19, 2019
Grant date	Mar 19, 2019

Abstract

An aircraft passenger seat ( 100 ) is fixed to a floor via a seat track fitting ( 110 ), and a reclining assembly of the seat is supported by pipes ( 130, 132 ) passed through left and right legs ( 120 ) and spreaders ( 170 ). A linear actuator ( 300 ) operates a reclining motion. A curved arm for deformation is provided to a mount ( 320 ) on which the actuator ( 300 ) is mounted, and a slit ( 145 ) is provided in a link plate ( 140 ) to which a rod is connected, and in a state where a forward force F is applied, the curved arm deforms and absorbs the impact. An impact absorbing structure is also provided to the legs ( 120 ).

First claim

The invention claimed is:

1. An aircraft passenger seat ( 3 ) comprising:
a pair of legs mounted via a fitting to a seat track on a floor surface of an aircraft;
two pipes fixed to a front portion and a rear portion of the legs;
a frame fixed to the two pipes and supporting a reclining assembly of the seat; and
a linear actuator,
wherein a rear portion of the linear actuator is supported pivotably on a mount fixed to one of the pipes located on the rear portion of the legs, and a tip of a linearly-moving rod of the linear actuator is coupled via a pin to a link plate operating the reclining assembly of the seat, and
the linear actuator is arranged so that an axis line of the linear actuator passes a vicinity of a center of the one of the pipes; and
wherein the mount comprises a pair of curved arms defining a through hole between the curved arms, and in a state where a force in a direction extending the mount is received, the curved arms are stretched to absorb an impact.

2. The aircraft passenger seat according to claim 1 ,
wherein the link plate has a groove, and in a state where the reclining assembly of the seat receives a forward force, the groove deforms so as to be widened, and absorbs an impact.

3. The aircraft passenger seat according to claim 1 ,
wherein the leg comprises a bolt hole provided at the rear portion fixed to the fitting, a pipe hole through which passes the one of the pipes, the pipe hole provided at a front portion of the bolt hole, and a groove formed between the bolt hole at the rear portion and the pipe hole, so that in a state where the leg receives a forward force, the groove deforms so as to be widened, and absorbs an impact.

4. The aircraft passenger seat according to claim 3 ,
wherein the aircraft passenger seat comprises a bushing fit to an area between the bolt hole of the fitting and a bolt inserted to the bolt hole, and in a state where a force in the direction bringing down the fitting is applied, the bushing deforms and absorbs an impact.

5. The aircraft passenger seat accord to claim 4 ,
wherein the bushing comprises a taper formed to an outer circumference portion of the bushing.

Assignees

• Jamco Corp

Inventors

• Ozaki Masaji
• Tagami Nozomu
• Ootake Sanae

Classifications

• B60N2/427

  Seats or parts thereof displaced during a crash · 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

• B64D11/0619 Primary

  with energy absorbing means specially adapted for mitigating impact loads for passenger seats, e.g. at a crash · CPC title

• B64D11/0696

  Means for fastening seats to floors, e.g. to floor rails · CPC title

• B60N2/42736

  of the whole seat · CPC title