Vehicle seat structure

1. A vehicle seat structure comprising:

a mode switching mechanism which is configured to switch configurations of two seats between a laterally located mode in which occupants seated on the two seats are positioned side by side in a seat width direction and a facing mode in which the occupants seated on the two seats face each other in a front-rear direction,

wherein the mode switching mechanism includes:

a rotating mechanism which is configured to switch one seat of the two seats between a state where the one seat faces a vehicle front direction and a state where the one seat faces a vehicle rear direction by rotating the one seat; and

a slide mechanism which is configured to move another seat of the two seats from a laterally located position where the other seat is located side by side with the one seat to a vertically located position where the other seat is located to face, in the front-rear direction, the one seat facing the vehicle rear direction by obliquely sliding the other seat in the vehicle rear direction and in the seat width direction from the laterally located position,

wherein the slide mechanism is further configured to slide the one seat in the front-rear direction, and

wherein the one seat is in a rearmost position when the two seats are in the laterally located position.

2. The vehicle seat structure according to claim 1 ,

wherein the vertically located position of the other seat is a position beyond the one seat in the vehicle rear direction.

3. The vehicle seat structure according to claim 2 ,

wherein the vertically located position of the other seat is a position entirely beyond the one seat in the vehicle rear direction.

4. The vehicle seat structure according to claim 1 ,

wherein a distance in the seat width direction between the other seat in the vertically located position and the one seat is smaller than a distance in the seat width direction between the other seat in the laterally located position and the one seat.

5. The vehicle seat structure according to claim 4 ,

wherein the rotating mechanism is configured to switch the one seat from the state where the one seat faces the vehicle front direction to be locked to a state where the one seat faces an obliquely inward direction where the one seat is rotated inward to face the other seat side at an angle of less than 90 degrees to be locked.

6. The vehicle seat structure according to claim 1 ,

wherein the other seat is disposed at an angle facing an oblique front direction which is between an oblique front sliding direction by the slide mechanism and the vehicle front direction.

7. The vehicle seat structure according to claim 1 ,

wherein a rotation center of rotating the one seat by the rotating mechanism is set at a position eccentric, in a plan view, from a shape center of the one seat in the vehicle front direction and in the seat width direction away from the other seat.

8. The vehicle seat structure according to claim 1 , wherein the slide mechanism includes:

a first slide rail extending in the front-rear direction such that the one seat is slidable along the first slide rail in the front-rear direction;

a second slide rail extending in an oblique direction with respect to the first slide rail extending in the front-rear direction, such that the other seat is slidable along the second slide rail in the oblique direction from the laterally located position to the vertically located position.

9. The vehicle seat structure according to claim 8 , wherein

wherein a rear end of the second slide rail is located further rearward than a rear end of the first slide rail.

10. The vehicle seat structure according to claim 9 , wherein

a front end of the second slide rail is located further forward than the rear end of the first slide rail.

11. The vehicle seat structure according to claim 9 , wherein the one seat is positioned at the rear end of the first slide rail when the two seats are in the laterally located position.

12. The vehicle seat structure according to claim 8 , wherein

the first slide rail includes slide rails extending in parallel to each other, and

the second slide rail includes slide rails extending in parallel to each other.

13. The vehicle seat structure according to claim 8 , wherein an orientation of the other seat is fixed to face an oblique front direction which is between the oblique direction in which the second slide rail extends and the vehicle front direction.