Vehicle seat

1. A vehicle seat, comprising:

a seat cushion in which a front panel extends between front parts of right and left side frames and a front rod extends between the front parts of the right and left side frames at a position rearward of the front panel in a longitudinal direction of a vehicle;

a cushion airbag device mounted in a front part of the seat cushion and configured to inflate and deploy a cushion airbag when a frontal collision of the vehicle occurs; and

a bag support fixed to the front rod, the cushion airbag being fixed to the bag support at a position rearward of the front rod in the longitudinal direction of the vehicle, the bag support includes a seat bracket and an airbag bracket, the seat bracket is fixed to the front rod, the airbag bracket is disposed above the seat bracket in a vertical direction of the vehicle, the cushion airbag being fixed to the airbag bracket at a position rearward of the front rod in the longitudinal direction of the vehicle, and the airbag bracket and the seat bracket are fixed to each other in a fixing portion located rearward of the front rod in the longitudinal direction of the vehicle,

wherein in the fixing portion, a stopper portion provided on the airbag bracket is retained by a retaining portion provided in the seat bracket.

2. The vehicle seat according to claim 1 , wherein the stopper portion is configured to be retained by the retaining portion by sliding the stopper portion toward a front of the vehicle into the retaining portion.

3. The vehicle seat according to claim 1 , wherein the stopper portion is configured to be retained by the retaining portion by sliding the stopper portion into the retaining portion in a lateral direction of the vehicle.

4. The vehicle seat according to claim 1 , wherein the seat bracket is welded to the front rod.

5. The vehicle seat according to claim 1 , wherein the airbag bracket and the seat bracket are fixed to each other in a front fixing portion located forward of the front rod in the longitudinal direction of the vehicle.

6. The vehicle seat according to claim 1 , wherein the airbag bracket and the seat bracket are fixed to each other in a rear fixing portion located rearward of the fixing portion in the longitudinal direction of the vehicle.

7. The vehicle seat according to claim 3 , wherein:

the cushion airbag device includes an inflator placed in the cushion airbag at a position forward of the front rod in the longitudinal direction of the vehicle; and

in the front fixing portion, a stud bolt for the inflator is passed through the airbag bracket and the seat bracket and is screwed into a nut.

8. The vehicle seat according to claim 1 , wherein:

the stopper portion is a cutout portion in a side wall of the airbag bracket; and

the retaining portion is a protruding piece on a side wall of the seat bracket.

9. The vehicle seat according to claim 1 , wherein:

the stopper portion is a stopper tab in an upper wall of the airbag bracket; and

the retaining portion is a retaining hole in an upper wall of the seat bracket.

10. The vehicle seat according to claim 1 , wherein in the fixing portion, a nut is screwed on a bolt passed through the airbag bracket and the seat bracket.

11. The vehicle seat according to claim 1 , wherein a clip passed through the airbag bracket and the seat bracket is provided in the fixing portion.

12. A vehicle seat, comprising:

a seat cushion in which a front panel extends between front parts of right and left side frames and a front rod extends between the front parts of the right and left side frames at a position rearward of the front panel in a longitudinal direction of a vehicle;

a cushion airbag device mounted in a front part of the seat cushion and configured to inflate and deploy a cushion airbag when a frontal collision of the vehicle occurs; and

a bag support fixed to the front rod, the cushion airbag being fixed to the bag support at a position rearward of the front rod in the longitudinal direction of the vehicle, the bag support includes a seat bracket and an airbag bracket, the seat bracket is fixed to the front rod, the airbag bracket is disposed above the seat bracket in a vertical direction of the vehicle, the cushion airbag being fixed to the airbag bracket at a position rearward of the front rod in the longitudinal direction of the vehicle, the airbag bracket and the seat bracket are fixed to each other in a fixing portion located rearward of the front rod in the longitudinal direction of the vehicle, and the airbag bracket and the seat bracket are fixed to each other in a rear fixing portion located rearward of the fixing portion in the longitudinal direction of the vehicle.

13. A vehicle seat, comprising:

a seat cushion in which a front panel extends between front parts of right and left side frames and a front rod extends between the front parts of the right and left side frames at a position rearward of the front panel in a longitudinal direction of a vehicle;

a cushion airbag device mounted in a front part of the seat cushion and configured to inflate and deploy a cushion airbag when a frontal collision of the vehicle occurs; and

a bag support fixed to the front rod, the cushion airbag being fixed to the bag support at a position rearward of the front rod in the longitudinal direction of the vehicle,

wherein the cushion airbag device is formed in a wedge shape as viewed in a lateral direction, and a vertical dimension of the cushion airbag device decreases rearwardly in the longitudinal direction of the vehicle, and the cushion airbag device is disposed at in such an attitude that the cushion airbag device is tilted downward in the longitudinal direction with a rear portion of the cushion airbag device being arranged at a lower position than a position of a front portion of the cushion airbag device.