Utility vehicle

1. A utility vehicle comprising:

a seat arranged in a vehicle interior;

a seat mounting frame to which the seat is mounted;

a vehicle body frame to which the seat mounting frame is mounted; and

a seat cover that is arranged below the seat, and defines a lower side of the vehicle interior and covers the seat from below,

wherein the seat mounting frame and the vehicle body frame are arranged above and below the seat cover and mounted with the seat cover interposed therebetween, and

wherein the seat of one of multiple seat types is mounted to the vehicle body frame via the seat mounting frame above the seat cover common to the multiple seat types.

2. The utility vehicle according to claim 1 , wherein the seat of one of a bench seat type, a separate seat type, and a composite type in which a bench seat and a separate seat are combined is mounted to the vehicle body frame.

3. The utility vehicle according to claim 2 , wherein the seat mounting frame for the bench seat type and the separate seat type or the seat mounting frame for the composite type is mounted to the vehicle body frame depending on the seat type of the seat.

4. The utility vehicle according to claim 1 , wherein

a floor panel that defines the lower side of the vehicle interior together with the seat cover is arranged on a front side of a vehicle body of the seat cover,

wherein the seat cover includes an upper surface portion that is arranged below the seat and extends in a front-rear direction, and a front surface portion that extends downward from a front side of the upper surface portion and is connected to the floor panel, and

wherein a recessed portion that is recessed downward from the upper surface portion and recessed rearward from the front surface portion is formed on one side of the seat cover in a vehicle width direction.

5. The utility vehicle according to claim 1 , wherein

the seat includes a first seat for an occupant excluding a driver, which is arranged on one side in a vehicle width direction, and a second seat for a driver, which is arranged on the other side in the vehicle width direction, and

wherein the first seat is configured so that a seat portion can be arranged in a seating position and a flip-up position.

6. The utility vehicle according to claim 5 , wherein

a floor panel that defines the lower side of the vehicle interior together with the seat cover is arranged on a front side of a vehicle body of the seat cover,

wherein the seat cover includes an upper surface portion that is arranged below the seat and extends in a front-rear direction, and a front surface portion that extends downward from a front side of the upper surface portion and is connected to the floor panel, and

wherein a recessed portion that is recessed downward from the upper surface portion and recessed rearward from the front surface portion is formed in a lower part of the first seat in the seat cover.

7. The utility vehicle according to claim 1 , wherein the seat cover is made of resin.

8. The utility vehicle according to claim 4 ,

wherein the recessed portion includes an outer wall portion on an outer side in the vehicle width direction which forms the recessed portion, and an inner wall portion on an inner side in the vehicle width direction which forms the recessed portion, and

wherein a front end portion of the outer wall portion is located behind a front end portion of the inner wall portion.

9. The utility vehicle according to claim 8 , wherein a support portion that supports the seat from below is stretched over the outer wall portion and the inner wall portion of the recessed portion so as to extend in the vehicle width direction.

10. The utility vehicle according to claim 9 , wherein the support portion constitutes a part of the seat mounting frame.

11. The utility vehicle according to claim 1 , wherein the seat mounting frame is removably mounted to the vehicle body frame.

12. The utility vehicle according to claim 1 , wherein

the seat includes a seat inner frame that is arranged inside the seat to form a skeleton of the seat, and

wherein the seat inner frame is supported by the seat mounting frame.

13. The utility vehicle according to claim 1 , wherein

the seat cover is formed with a through hole through which a connecting portion for connecting the seat mounting frame and the vehicle body frame penetrates, and

wherein the seat cover is interposed in a portion between the seat mounting frame and the vehicle body frame excluding the connecting portion.

14. The utility vehicle according to claim 13 , further comprising a roof cover that covers an upper side of the vehicle interior.

15. The utility vehicle according to claim 14 , further comprising an air conditioner.

16. A utility vehicle comprising:

a seat arranged in a vehicle interior;

a seat mounting frame to which the seat is mounted;

a vehicle body frame to which the seat mounting frame is mounted; and

a seat cover that is arranged below the seat, and defines a lower side of the vehicle interior and covers the seat from below.

17. A manufacturing method for a utility vehicle comprising:

assembling a vehicle body frame common to multiple seat types;

mounting a seat cover common to the multiple seat types that defines a lower side of a vehicle interior above the vehicle body frame;

preparing a seat mounting frame according to one of the multiple seat types;

mounting the seat mounting frame above the seat cover; and

mounting a seat of the one of the multiple seat types to the seat mounting frame.