Motor vehicle armrest

1. A motor vehicle armrest, comprising:

an armrest body that is disposed on at least one side of a seat cushion, in a vehicle-width direction, so as to support an arm of an occupant of a motor vehicle;

a padding material provided in the armrest body; and

an inflation portion, provided in the armrest body, that is disposed on an inner side of the padding material in the vehicle-width direction,

wherein the inflation portion is inflatable, in a direction toward the occupant, in the vehicle-width direction such that a support region ranging from a lumber to a thigh of the occupant is pressed toward a center of the seat cushion in the vehicle-width direction.

2. The motor vehicle armrest according to claim 1 ,

wherein the armrest body is disposed on each side of the seat cushion, in the vehicle-width direction.

3. The motor vehicle armrest according to claim 2 ,

wherein the armrest body disposed on a side of a door opening has a side impact reducing load portion that protects the occupant against an impact coming from the side of the vehicle; and

wherein the armrest body disposed on an opposite side of the seat cushion from the door opening overlaps the occupant in side view as seen from the vehicle-width direction and is movable between a use position, at which the armrest body supports the arm of the occupant, and a stowed position at which the armrest body unsupports the occupant.

4. The motor vehicle armrest according to claim 1 ,

wherein the armrest body disposed on a side of a door opening is movable between a use position, at which the armrest body protrudes above the seat cushion so as to support the arm of the occupant, and a stowed position that is located below the use position.