Seat for a vehicle

Patent metadata

Field	Value
Publication number	US-11820256-B2
Application number	US-202117564423-A
Country	US
Kind code	B2
Filing date	Dec 29, 2021
Priority date	Aug 3, 2021
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

A seat for a vehicle including support links enabling a rotating motion and a sliding motion between a seat frame and seat rails, the support links being mounted so that the seat may be rotated in the forward and rearward directions as in a seesaw motion about a shaft of a vehicle in a width direction of the vehicle, so as to easily implement a facing mode posture, in which passengers sit facing each other, a relaxed comfort posture, etc.

First claim

What is claimed is:

1. A seat for a vehicle, the seat comprising:
a seat frame configured such that a first seat frame part and a second seat frame part are formed integrally with each other at a predetermined angle;
a pair of first support links provided with front ends connected to the first seat frame part using hinges and rear ends connected to rear parts of seat rails by a first rotating shaft;
a pair of second support links provided with front ends connected to front parts of the seat rails by a second rotating shaft and rear ends connected to the second seat frame part using hinges; and
a driving device connected to the first rotating shaft and the second rotating shaft so as to transmit rotating force thereto, and configured to adjust angles of inclination of the first support links and the second support links so as to rotate the seat frame forwards and rearwards,
wherein a first leg rest frame to be also used as a headrest frame is mounted at a distal end of the first seat frame part, and a second leg rest frame to be also used as the headrest frame is mounted at a distal end of the second seat frame part.

2. The seat of claim 1 , wherein the pair of first support links are disposed to be inclined downwards from the front ends thereof to the rear ends thereof, the pair of second support links are disposed to be inclined downwards from the rear ends thereof to the front ends thereof, and thus, the pair of first support links and the pair of second support links are disposed to cross each other.

3. The seat of claim 1 , wherein first hinge terminals formed at the front ends of the first support links and first hinge brackets provided on the first seat frame part overlap each other and are hinge-coupled to each other, and second hinge terminals formed at the rear ends of the second support links and second hinge brackets provided on the second seat frame part overlap each other and are hinge-coupled to each other.

4. The seat of claim 3 , wherein the first hinge brackets are coupled to first guide rails mounted under a lower part of the first seat frame part so as to be slidably movable, and the second hinge brackets are coupled to second guide rails mounted under a lower part of the second seat frame part so as to be slidably movable.

5. The seat of claim 1 , wherein the first rotating shaft is spline-coupled to the rear ends of the first support links so as to transmit rotating force thereto, and the second rotating shaft is spline-coupled to the front ends of the second support links so as to transmit rotating force thereto.

6. The seat of claim 5 , wherein both ends of the first rotating shaft are hinge- coupled to first support brackets mounted at the rear parts of the seat rails, and both ends of the second rotating shaft are hinge-coupled to second support brackets mounted at the front parts of the seat rails.

7. The seat of claim 1 , wherein the driving device comprises:
a first motor disposed around the first rotating shaft;
a first gear box connected to an output shaft of the first motor and mounted on the first rotating shaft so as to transmit rotating force thereto;
a second motor disposed around the second rotating shaft; and
a second gear box connected to an output shaft of the second motor and mounted on the second rotating shaft so as to transmit rotating force thereto.

8. The seat of claim 1 , wherein a suspension device configured to support a boundary between the first seat frame part and the second seat frame part so that the boundary between the first seat frame part and the second seat frame part is movable upwards and downwards is mounted on a support plate mounted on the seat rails.

9. The seat of claim 8 , wherein the suspension device comprises:
a guide pipe mounted on the support plate and configured to have a predetermined height;
a spring installed in the guide pipe so as to be compressible; and
a guide link provided with an upper end connected to a third hinge bracket disposed on an underside of a crossbar extending between left and right boundaries of the first seat frame part and the second seat frame part, and a lower end of which is inserted into the guide pipe and connected to an upper end of the spring, so as to be rectilinearly moved upwards and downwards.

10. The seat of claim 9 , wherein, in order to assure upward and downward rectilinear movement of the guide link, a guide hole configured to extend in a vertical direction is formed in the guide pipe, and a guide pin inserted into the guide hole protrudes from the guide link.

11. The seat of claim 1 , wherein the first leg rest frame is mounted at a first mounting brackets mounted at the distal end of the first seat frame part such that an angle of the first leg rest frame is adjustable by a first hinge shaft of the hinge bracket, and the second leg rest frame is mounted at second mounting brackets mounted at the distal end of the second seat frame part by a second hinge shaft such that an angle of the second leg rest frame is adjustable.

12. The seat of claim 11 , wherein a third gear box connected to an output shaft of a third motor is mounted on the first hinge shaft so as to transmit rotating force to the first hinge shaft, and a fourth gear box connected to an output shaft of a fourth motor is mounted on the second hinge shaft so as to transmit rotating force to the second hinge shaft.

13. The seat of claim 1 , wherein the first seat frame part and the second seat frame part are provided to have the same shape, and the first leg rest frame and the second leg rest frame are provided to have the same shape.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp

Inventors

• Jung Chan Ho
• Lim Deok Soo
• Kim Bong Ku
• Moon Hyun Kyu
• Kim Mu Young
• Na Seon Chae
• Park Sang Do
• Lee Sang Soo

Classifications

• B60N2/12 Primary

  slidable and tiltable · CPC title

• B60N2/0232

  Operations & Transport · mapped topic

• B60N2/504 Primary

  attached to the base and the backrest · CPC title

• B60N2/507

  Parallelogram-like structure · CPC title

• B60N2/544

  Compression or tension springs (B60N2/542 takes precedence) · CPC title