Seat for vehicle

1 . A seat for a vehicle, comprising:

a first seat rail and a second seat rail coupled to the vehicle and spaced apart from each other in left and right directions;

a first slider positioned on the first seat rail on a left side of the seat and a second slider positioned on the second seat rail on a right side of the seat, wherein the first and second sliders are configured to slide in forward and rearward directions;

a first side frame positioned on the left side of the seat and configured to change position with respect to the first slider, and a second side frame positioned on the right side of the seat and configured to change position with respect to the second slider;

a link arm connecting the first slider and the first side frame on one side in forward and rearward directions;

a linker connecting the first slider and the first side frame on another side in forward and rearward directions, and including a plurality of link members; and

a plurality of drivers connected to the plurality of link members of the linker to provide rotational force;

wherein the linker comprises a first link member and a second link member;

wherein the plurality of drivers comprises a first driver and a second driver; and

wherein the first driver is connected to the first link member, and the second driver is connected to the second link member.

2 . The seat of claim 1 , wherein each of the first and second sliders comprise:

a moving rail sliding along the seat rail; and

a bracket mounted on the moving rail;

wherein the bracket includes a hinge hole or a hinge portion connecting the link arm and the linker.

3 . The seat of claim 1 , wherein:

the link arm is positioned on a front side of the seat, and the linker is positioned on a rear side of the seat; and

one end of the link arm is rotatably hinged to the first side frame, and another end of the link arm is rotatably hinged to the first slider.

4 . The seat of claim 3 , wherein after rotation of the link arm, a spring assisting return of the link arm is mounted on at least one hinge portion, among hinge portions on both ends of the link arm.

5 . The seat of claim 1 ,

wherein one end of the first link member is rotatably hinged to the first slider;

another end of the first link member is hinged to one end of the second link member to rotate relative to each other; and

another end of the second link member is rotatably hinged to the first side frame.

6 . The seat of claim 5 , wherein the first and second side frames are connected by at least one cross-bar.

7 . The seat of claim 1 , wherein the first driver is mounted on one of the first slider or the second slider, and the second driver is mounted on one of the first side frame or the second side frame.

8 . The seat of claim 1 , wherein the first driver comprises:

a first driving motor;

a first gearbox connected to a motor shaft of the first driving motor;

a connection shaft connected to the first gearbox; and

a first core coupled to one end portion of the connection shaft and a second core coupled to another end portion of the connection shaft;

wherein the connection shaft is fixedly connected to the one end of the first link member via each of the first and second cores.

9 . The seat of claim 8 , wherein the first driving motor is configured to control the seat in at least a relaxation mode and a tilt-up walk-in mode.

10 . The seat of claim 9 , wherein, in the relaxation mode,

the first link member is configured to rotate about the connection shaft in the first slider in a first direction by a rotational force applied by the first driving motor, and to simultaneously move the first side frame in a rearward direction while lowering a rear portion of the first side frame, and

as the first side frame moves, the link arm is configured to rotate around a hinge point of the first slider in the first direction.

11 . The seat of claim 9 , wherein, in the tilt-up walk-in mode,

the first link member is configured to rotate about the connection shaft in the first slider in a second direction by a rotational force applied by the first driving motor, and to simultaneously move the first side frame in a forward direction while raising a rear portion of the first side frame, and

as the first side frame moves, the link arm is configured to rotate around a hinge point of the first slider in the second direction, and to simultaneously lower a front portion of the first side frame.

12 . The seat of claim 8 , wherein the second driver comprises:

a second driving motor;

a second gearbox connected to a motor shaft of the second driving motor; and

an output shaft of the second gearbox;

wherein the output shaft is connected to another end of the second link member via the at least one cross-bar.

13 . The seat of claim 12 , wherein the second driving motor is configured to control the seat in a fold and dive mode.

14 . The seat of claim 13 , wherein, in the fold and dive mode,

the second link member is configured to rotate about the at least one cross-bar and the output shaft in the first side frame in a first direction by a rotational force applied by the second driving motor, and to simultaneously move the first side frame in a rearward direction, and

as the side frame moves, the link arm is configured to rotate around a hinge point of the first slider in the first direction, and to simultaneously lower a front portion of the first side frame.

15 . The seat of claim 14 , wherein, in the fold and dive mode,

the first link member is configured to rotate about the connection shaft in the slider in the first direction by a rotational force applied by the first driving motor, and to simultaneously move the first side frame in a rearward direction while lowering a rear portion of the first side frame, and

as the side frame moves, the link arm is configured to rotate around the hinge point of the first slider in the first direction, and to simultaneously lower the front portion of the first side frame.

16 . A seat for a vehicle, comprising:

a first seat rail and a second seat rail coupled to the vehicle and spaced apart from each other in left and right directions;

a first slider positioned on the first seat rail on a left side of the seat, and a second slider positioned on the second seat rail on a right side of the seat, wherein the first and second sliders are configured to slide in forward and rearward directions;

a first side frame positioned on the left side of the seat and configured to change position with respect to the first slider, and a second side frame positioned on the right side of the seat, and configured to change position with respect to the second slider;

a link arm connecting the first slider and the first side frame on one side in forward and rearward directions;

a linker connecting the first slider and the first side frame on another side in forward and rearward directions, and the linker including a first link member and a second link member; and

a plurality of drivers connected to the first link member and the second link member and configured to provide a rotational force;

wherein the first slider, the link arm, the first side frame, the second link member, and the first link member are hinged to each other to form a five-bar linkage mechanism;

wherein the plurality of drivers comprises a first driver and a second driver; and

wherein the first driver is connected to the first link member, and the second driver is connected to the second link member.

17 . The seat of claim 16 , wherein the link arm is located on a front side of the seat, and the linker is located on a rear side of the seat.