Vehicle seat

1. A vehicle seat comprising a seat main body having a seat back which is a backrest portion, and a seat cushion which is connected to the seat back and is a seating portion, and capable of switching between a usage state where an occupant can sits and a movement state where the seat main body is moved from the usage state, the vehicle seat comprising:

a seat pivot shaft provided on a vehicle body floor and connected to one end side of the seat main body in a seat front to back direction so that the seat main body is pivotable;

a detachable leg comprising an upper end portion, mounted to an other end side of the seat main body in the seat front to back direction, and a lower end portion, detachably held in a leg holding member provided on the vehicle body floor; and

a leg guide portion that guides the detachable leg detached from the leg holding member in association with a movement of the seat main body;

wherein when the seat main body moves between the movement state and the usage state, the leg guide portion guides the detachable leg moving together with the seat main body to avoid contact with a leg movement inhibiting portion which is a portion of the vehicle seat.

2. The vehicle seat according to claim 1 , wherein the movement state is a housed state where the seat main body is moved to a position lower than the vehicle body floor,

wherein the seat pivot shaft is connected to a seat rear end side of the seat main body,

wherein the detachable leg is mounted to a seat front end side of the seat main body at an upper end portion thereof, and

wherein the leg guide portion guides the detachable leg when the seat main body moves from the housed state to the usage state.

3. The vehicle seat according to claim 1 , further comprising:

a support base which is provided on the vehicle body floor and to which the seat pivot shaft is mounted,

wherein the leg holding member is mounted on the support base.

4. The vehicle seat according to claim 3 , wherein when the seat main body moves from the movement state to the usage state, the leg guide portion guides the detachable leg to pass above the leg movement inhibiting portion which is a portion of the support base.

5. The vehicle seat according to claim 4 , wherein the leg guide portion causes a cushion abutting portion of the seat cushion, provided at a position on a leg holding member side relative to the detachable leg, to abut a base abutting portion provided to the support base.

6. The vehicle seat according to claim 5 , wherein when the cushion abutting portion abuts the base abutting portion, the detachable leg is located on the opposite side to the leg holding member side with respect to the leg movement inhibiting portion.

7. The vehicle seat according to claim 5 , wherein the support base comprises a base cover covering the support base from an outside of the support base,

wherein the base abutting portion is provided on a surface on a seat cushion side of the base cover,

wherein the seat cushion comprises a cushion cover covering the seat cushion from an outside of the seat cushion, and

wherein the cushion abutting portion provided to project to a surface on the base cover side of the cushion cover is arranged to overlap with the base abutting portion in a seat width direction.

8. The vehicle seat according to claim 7 , wherein at least one abutting surface of the cushion abutting portion and the base abutting portion is formed into a convex curved surface.

9. The vehicle seat according to claim 7 , wherein one abutting surface of the cushion abutting portion and the base abutting portion has a lower coefficient of friction than another abutting surface.

10. The vehicle seat according to claim 7 , wherein the movement state is a housed state where the seat main body is moved to a position formed in front of the seat lower than the vehicle body floor, and

wherein the leg guide portion causes the cushion abutting portion, arranged at a rear of the seat relative to the detachable leg in the seat cushion, to abut the base abutting portion provided at the seat front end portion of the base cover, thereby guiding the detachable leg to pass above the leg movement inhibiting portion provided at the seat front end portion of the base cover.

11. The vehicle seat according to claim 5 , comprising:

a cushion frame serving as a framework of the seat cushion, wherein the cushion frame comprises right and left side frames arranged on the sides of the seat, and a connecting frame connecting the right and left side frames, and

wherein the cushion abutting portion is arranged in a portion corresponding to the side frames in the seat cushion.

12. The vehicle seat according to claim 5 , wherein the movement state is a housed state that the seat main body is moved to a position formed in front of the seat lower than the vehicle body floor, the vehicle seat comprising:

a cushion pivoting device connecting the seat cushion with respect to the seat back pivotally; and

a lock-off device provided in the seat cushion and having a lock-off lever capable of switching the cushion pivoting device from a lock state to an unlock state, and

wherein when the lock-off lever, moving together with the seat cushion, abuts a lever abutting portion provided to the support base, the cushion abutting portion is located in front of the seat with respect to the base abutting portion.