Passenger seat with support structure defining empty space

Patent metadata

Field	Value
Publication number	US-11358722-B2
Application number	US-201816955848-A
Country	US
Kind code	B2
Filing date	Dec 18, 2018
Priority date	Dec 21, 2017
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

A passenger seat includes a bottom support to be connected to the aircraft floor, a seat pan frame, and a support structure interconnecting the seat pan frame to the bottom support. A front support member defines a frontmost portion of the support structure, and has a top end connected to a front end of the seat pan frame and a bottom end connected to the bottom support. The front end of the seat pan frame is forwardly offset from a front end of the bottom support and the top end of the front support member is forwardly offset from its bottom end such that an empty space is defined across a width of the seat between the seat pan frame and the floor, forwardly of the support structure, forwardly of the bottom support, and rearwardly of a vertical plane aligned with the front end of the seat pan frame.

First claim

The invention claimed is:

1. A passenger seat for an aircraft, the seat comprising:
a bottom support configured to be connected to a floor of the aircraft, the bottom support defining a footprint of the seat on a surface of the floor;
a seat pan frame; and
a support structure interconnecting the seat pan frame to the bottom support, a front support member defining a frontmost portion of the support structure, the front support member having a top end connected to a front end of the seat pan frame and an opposed bottom end connected to the bottom support;
wherein the front end of the seat pan frame is forwardly offset from a front end of the bottom support and the top end of the front support member is forwardly offset from the bottom end of the front support member such that an empty space is defined across a width of the seat between the seat pan frame and the floor, forwardly of the support structure, forwardly of the bottom support, and rearwardly of a vertical plane aligned with the front end of the seat pan frame; and
wherein the top end of the front support member is pivotally connected to the seat pan frame and the bottom end of the front support member is rigidly connected to the bottom support.

2. The passenger seat as defined in claim 1 , further comprising a footrest having a first end adjacent the front end of the seat pan frame and an opposed second end spaced from the front end of the seat pan frame, the second end being located under the seat pan frame and aft of the first end when the footrest is in a retracted configuration, the empty space being defined forwardly of and under the footrest in the retracted configuration.

3. The passenger seat as defined in claim 2 , wherein the footrest in the retracted configuration extends at an angle of more than 10 degrees with respect to the vertical plane.

4. The passenger seat as defined in claim 2 , wherein the footrest in the retracted configuration extends at an angle of about 45 degrees with respect to the vertical plane.

5. The passenger seat as defined in claim 2 , wherein the first end of the footrest is pivotally connected to the seat pan frame.

6. The passenger seat as defined in claim 2 , wherein a length of the empty space defined along the surface of the floor from the footrest to the vertical plane corresponds to at least 25% of a length of the seat pan frame.

7. The passenger seat as defined in claim 1 , wherein the bottom support includes a swivel assembly having a first portion configured to have a fixed orientation with respect to the floor and a second portion rotatable relative to the first portion, the bottom end of the front support member being connected to the second portion, the seat pan frame being pivotable via the swivel assembly from a neutral position, the empty space being defined when the seat is in the neutral position.

8. The passenger seat as defined in claim 1 , wherein the bottom support includes rails configured to have a fixed position with respect to the floor and a movable connection assembly slidingly engaged to the rails, the seat pan frame being slidable via the movable connection assembly between a forwardmost position and a rearwardmost position, the front end of the seat pan frame being forwardly offset from the front end of the bottom support when the seat pan frame is in the rearwardmost position, the empty space being defined when the seat pan frame is in the rearwardmost position.

9. A passenger seat for an aircraft, the seat comprising:
a fixed portion configured to be connected to a floor of the aircraft, the fixed portion defining a footprint of the seat on a surface of the floor;
a movable connection assembly engaged to the fixed portion and movable with respect thereto;
a seat pan frame; and
a support structure interconnecting the seat pan frame to the movable connection assembly, a front support member defining a frontmost portion of the support structure, the front support member having a top end connected to a front end of the seat pan frame and an opposed bottom end connected to the movable connection assembly;
wherein the front end of the seat pan frame is forwardly offset from a front end of the fixed portion and from a front end of the movable connection assembly and the top end of the front support member is forwardly offset from the bottom end of the front support member such that an empty space is defined across a width of the seat between the seat pan frame and the floor, forwardly of the support structure, forwardly of the movable connection assembly, and rearwardly of a vertical plane aligned with the front end of the seat pan frame; and
wherein the top end of the front support member is pivotally connected to the seat pan frame and the bottom end of the front support member is rigidly connected to the movable connection assembly.

10. The passenger seat as defined in claim 9 , further comprising a footrest having an first end adjacent the front end of the seat pan frame and an opposed second end spaced from the front end of the seat pan frame, the second end being located under the seat pan frame and aft of the first end when the footrest is in a retracted configuration, the empty space being defined forwardly of and under the footrest in the retracted configuration.

11. The passenger seat as defined in claim 10 , wherein the footrest in the retracted configuration extends at an angle of more than 10 degrees with respect to the vertical plane.

12. The passenger seat as defined in claim 10 , wherein the footrest in the retracted configuration extends at an angle of about 45 degrees with respect to the vertical plane.

13. The passenger seat as defined in claim 10 , wherein the first end of the footrest is pivotally connected to the seat pan frame.

14. The passenger seat as defined in claim 10 , wherein a length of the empty space defined along the surface of the floor from the footrest to the vertical plane corresponds to at least 25% of a length of the seat pan frame.

15. The passenger seat as defined in claim 10 , wherein the movable connection assembly includes a swivel assembly having a first portion configured to have a fixed orientation with respect to the floor and a second portion rotatable relative to the first portion, the bottom end of the front support member being connected to the second portion, the seat pan frame being pivotable via the swivel assembly from a neutral position, the empty space being defined when the seat is in the neutral position.

16. The passenger seat as defined in claim 9 , wherein the fixed portion includes rails and the movable connection assembly is slidingly engaged to the rails, the seat pan frame being slidable via the movable connection assembly between a forwardmost position and a rearwardmost position, the front end of the seat pan frame being forwardly offset from the front end of the movable connection assembly when the seat pan frame is in the rearwardmost position, the empty space being defined when the seat pan frame is in the rearwardmost position.

Assignees

• Bombardier Inc

Inventors

• Erhel Philippe
• Vigeant Jerome
• Yu Chen Hua

Classifications

• B64D11/0696

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

• B64D11/0648

  Lower frame constructions · CPC title

• B64D11/064 Primary

  Adjustable inclination or position of seats · CPC title

• B60N2/1885

  with weight compensating means · CPC title

• B60N2/995

  Lower-leg-rests, e.g. calf-rests · CPC title