Relax mode implementable vehicle seat

Patent metadata

Field	Value
Publication number	US-12128799-B2
Application number	US-202318099426-A
Country	US
Kind code	B2
Filing date	Jan 20, 2023
Priority date	Sep 16, 2022
Publication date	Oct 29, 2024
Grant date	Oct 29, 2024

Abstract

The present disclosure relates to a vehicle seat wherein matchability with a luggage box is maintained when the seat is folded, and a relax mode and a backward relax mode can be implemented. The vehicle seat according to the present disclosure includes: a tilting link configured to tilt a front portion of a seat cushion upwards/downwards; and a sliding bracket having one end to which a seat is connected by a hinge structure such that the seat is tilted around the hinge structure, the other end of the sliding bracket being connected so as to slide forwards/backwards.

First claim

What is claimed is:

1. A vehicle seat comprising:
a seat cushion;
a seat back;
a tilting link configured to tilt a front portion of a seat cushion upwards or downwards, the tilting link including a front end connected to a front mounting bracket installed above a floor panel of a vehicle body in front of the seat, and a rear end connected to a middle part of the seat cushion; and
a sliding bracket having one end to which the vehicle seat is connected by a first hinge structure such that the seat is tilted around the first hinge structure, the other end of the sliding bracket being connected so as to slide forwards or backwards, the sliding bracket including an upper end connected to a lower end of the seat back, and a lower end configured to slide forwards or backwards behind the tilting link.

2. The vehicle seat of claim 1 ,
wherein the tilting link includes both ends connected to the seat cushion and to the vehicle body, respectively, by second and third hinge structures, respectively, one end of the sliding bracket is connected to the seat back or to the seat cushion, and the other end of the sliding bracket is coupled to a movable rail configured to slide along a fixed rail.

3. The vehicle seat of claim 2 , wherein the tilting link coupled to the seat cushion is configured to, during a folding mode of the seat in a structure in which a luggage box is disposed behind the seat, rotate downwards such that a front end of the seat cushion is tilted downwards, the sliding bracket is configured to slide forwards, thereby increasing an interval between the seat back and the luggage box, and the seat back is configured to fold without interfering with the luggage box due to the increased interval in the folding mode.

4. The vehicle seat of claim 2 , wherein the tilting link coupled to the seat cushion is configured to, during a relax mode of the seat in a structure in which a luggage box is disposed behind the seat, rotate upwards such that a front end of the seat cushion is tilted upwards, the sliding bracket is configured to slide forwards, thereby increasing an interval between the seat back and the luggage box, and the seat back is configured to recline backwards as much as the increased interval.

5. The vehicle seat of claim 2 , wherein the tilting link coupled to the seat cushion is configured to, during a backward relax mode of the seat, rotate upwards such that a front end of the seat cushion is tilted upwards, the sliding bracket is configured to slide forwards to a maximum extent, thereby inverting postures of the seat back and the seat cushion, and the seat is configured to assume a backward-facing posture.

6. The vehicle seat of claim 5 , wherein a head rest coupled to the seat back is configured to fold toward a rear portion of the seat back during the backward relax mode of the seat, and a leg rest coupled to the seat cushion is configured to unfold in parallel to the seat cushion.

7. The vehicle seat of claim 1 , further comprising a driving unit configured to provide driving torque to the tilting link.

8. The vehicle seat of claim 7 , wherein the driving unit includes a rotating shaft connected to the tilting link by a power transfer element.

9. The vehicle seat of claim 7 , wherein the driving unit includes a pinion gear and a rotating shaft to which the pinion gear is coupled, and
the vehicle seat further comprises a sector gear disposed on an edge of the other end of the tilting link around a third hinge structure, the sector gear is coupled to the pinion gear so as to mesh with the pinion gear.

10. The vehicle seat of claim 7 , further comprising:
a lead screw connected to a rotating shaft of the driving unit such that rotational movements of the driving unit are converted into linear movements of the lead screw,
a tilt operating bar coupled to a remaining part of the tilting link other than one end and the other end thereof,
wherein the lead screw is coupled to the tilt operating bar.

11. A vehicle seat comprising:
a seat cushion;
a tilting link configured to tilt a front portion of a seat cushion upwards or downwards;
a sliding bracket having one end to which the vehicle seat is connected by a first hinge structure such that the seat is tilted around the first hinge structure, the other end of the sliding bracket being connected so as to slide forwards or backwards; and
a driving unit configured to provide driving torque to the tilting link, wherein the driving unit includes a rotating shaft connected to the tilting link by a power transfer element.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp

Inventors

• Kim Mu Young
• Park Sang Do
• Jung Ho Suk
• Yun Jun Young
• Lee Jun Hwan
• Jung Chan Ho
• Lee Hyeok Seung

Classifications

• B60N2/3004

  by rotation only · CPC title

• B60N2/838

  Tiltable · CPC title

• B60N2/02253

  characterised by the transmission between the electric motor and the seat or seat parts · CPC title

• B60N2/2209

  by longitudinal displacement of the cushion, e.g. back-rest hinged on the bottom to the cushion and linked on the top to the vehicle frame · CPC title

• B60N2/02246

  Electric motors therefor · CPC title