Vehicle seat

Patent metadata

Field	Value
Publication number	US-11623547-B2
Application number	US-202017036684-A
Country	US
Kind code	B2
Filing date	Sep 29, 2020
Priority date	Sep 30, 2019
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

A vehicle seat configured to accommodate at least two users, comprising a base, and a seating portion frame comprising at least two seating areas, a first and a second backrest which are pivotally hinged to the base, wherein the seat further comprises a connection system connecting the first backrest to the seating portion frame, configured so that the pivoting of the first backrest relative to the base causes the simultaneous movement of the seating portion frame relative to the base, and wherein the second width portion of the seating portion frame is connected to the base, by means of a connection mechanism, configured to enable movement of the seating portion frame relative to the base during the movement of the seating portion frame relative to the base.

First claim

The invention claimed is:

1. A vehicle seat configured to accommodate at least two users, the vehicle seat comprising:
a lower frame, intended to be connected to the floor of a vehicle, having:
a base, intended to be connected to the floor of the vehicle, and
a seating portion frame, comprising at least two user places to accommodate at least two users, having a front edge and a rear edge interconnected by a first side edge and a second side edge,

a first backrest hinged to the base of the lower frame so as to pivot about a first transverse axis of the seat, extending along a first width portion of the seating portion frame in the transverse direction of the seat, and configured to pivot relative to the base about the first transverse axis between at least one raised position and a folded position,
a second backrest hinged to the base of the lower frame so as to pivot about a second transverse axis of the seat, the second backrest extending along a second width portion of the seating portion frame in the transverse direction of the seat, and configured to pivot relative to the base about the second transverse axis between at least one raised position and a folded position,
wherein the seat further comprises a connection system connecting the first backrest to the seating portion frame and configured so that the pivoting of the first backrest relative to the base about the first transverse axis between the at least one raised position and the folded position causes the simultaneous movement of the seating portion frame relative to the base in the longitudinal direction and the vertical direction between a first position and a second position, in the two pivoting directions of the first backrest relative to the base, about the first transverse axis of the seat,
wherein the second backrest is configured to pivot relative to the base about the second transverse axis between the at least one raised position and the folded position independently of the movement of the seating portion frame relative to the base in the longitudinal direction and the vertical direction, by the connection system throughout the pivoting of the first backrest relative to the base about the first transverse axis at least to enable the second backrest to be folded from the at least one raised position to the folded position with the first backrest remaining in the raised position and without causing the simultaneous movement of the seating portion frame relative to the base, and
wherein the second width portion of the seating portion frame is connected to the base at the rear edge of the seating portion frame by a connection mechanism configured to enable movement of the seating portion frame relative to the base in the longitudinal direction and the vertical direction of the seat during the movement of the seating portion frame relative to the base in the longitudinal direction and the vertical direction of the seat, and
wherein the connection mechanism comprises a connecting rod having two longitudinal ends with:
a first longitudinal end hinged to the seating portion frame at its rear edge, so as to pivot about a third transverse axis of the seat, and a second longitudinal end hinged to the base so as to pivot about a fourth transverse axis of the seat and movable relative to the base so as to slide along a translation axis.

2. The seat of claim 1 , wherein the connection mechanism is configured such that, during movement of the seating portion frame relative to the base in the longitudinal direction and in the vertical direction of the seat driven by the pivoting of the first backrest relative to the base about the first transverse axis:
the connecting rod pivots relative to the seating portion frame at its first longitudinal end, about the third transverse axis,
the connecting rod pivots relative to the base at its second longitudinal end, about the fourth transverse axis,
the second longitudinal end of the connecting rod slides relative to the base along the translation axis.

3. The seat of claim 1 , wherein the first longitudinal end of the connecting rod is hinged to a side edge of the seating portion frame so as to pivot about the third transverse axis of the seat.

4. The seat of claim 1 , wherein the translation axis is contained in a plane parallel to a plane of the seat and is inclined relative to the longitudinal direction and/or to the vertical direction of the seat, and
wherein the base has a hole oriented along the translation axis, and
wherein the second longitudinal end of the connecting rod is connected to the base by a guide pin received in the hole and configured to slide in the hole along the translation axis.

5. The seat of claim 4 , wherein the hole is of substantially rectangular or oblong shape, and
wherein the guide pin has a longitudinal slide-guiding portion received in the hole, the hole having a substantially rectangular cross-section.

6. The seat of claim 1 , wherein the connection system between the first backrest and the seating portion frame comprises a pivoting connection along a fifth transverse axis of the seat distinct from the first transverse axis between the first backrest and the base, the pivoting connection connecting the first backrest and the seating portion frame near its rear edge.

7. The seat of claim 6 , wherein the connection system comprises a tab provided on the seating portion frame, the tab projecting from the rear edge of the seating portion frame and having two longitudinal ends with:
a first longitudinal end integral to the seating portion frame at the rear edge of the seating portion frame, and
a second longitudinal end connected to the first backrest by means of the pivoting connection along the fifth transverse axis of the seat.

8. The seat of claim 7 , wherein the first longitudinal end of the tab of the connection system is integral with the first side edge of the seating portion frame, and the first longitudinal end of the connecting rod of the connection mechanism is hinged to the second side edge of the seating portion frame.

9. The seat of claim 1 , wherein the lower frame further has connection means configured to connect the lower frame to the floor of the vehicle, the connection means comprising two sliders arranged one on either side of the lower frame, each slider extending along a longitudinal axis of the seat and configured to enable the seat to move in translation relative to the floor of the vehicle in the longitudinal direction of the seat.

10. The seat of claim 9 , wherein the seating portion frame is connected to the connection means by at least one connecting rod having first and second longitudinal ends, wherein the first longitudinal end of the connecting rod is hinged to the connection means so as to pivot about a sixth transverse axis of the seat and the second longitudinal end of the connecting rod is hinged to the seating portion frame, at its front edge, so as to pivot about a seventh transverse axis of the seat.

11. The seat of claim 9 , wherein the base is mounted to be movable relative to the connection means along the longitudinal direction and the vertical direction of the seat so as to be able to move closer to or away from the connection means, and
wherein the connection mechanism is configured to allow movement of the base relative to the seating portion frame along the longitudinal direction and the vertical direction of the seat during movement of the base relative to the connection means along the longitudinal direction and the vertical direction of the seat independently of and decoupled from the pivoting of the backrest relative to the base about the second transverse axis of the seat.

12. The sea

Assignees

• Faurecia Sieges Dautomobile

Inventors

• Epaud David
• Bouzid Farouk

Classifications

• B60N2/015 Primary

  Attaching seats directly to vehicle chassis · CPC title

• B60N2002/684

  the back rest being mounted or joined with an easy attachment system to the seat · CPC title

• B60N2/3009 Primary

  about transversal axis · CPC title

• B60N2/22

  the back-rest being adjustable {(B60N2/2878 takes precedence)} · CPC title

• B60N2/68

  Seat frames · CPC title