Armrest structure for vehicle and setting method of armrest height for vehicle

A setting method of an armrest height for a vehicle which comprises a first armrest to support an elbow of one of arms of a passenger seated in a seat, the first armrest being provided on one side of the seat in a seat width direction, and a second armrest to support an elbow of the other arm of the passenger seated in the seat, the second armrest being provided on the other side of the seat in the seat width direction wherein said first and second armrests are configured such that a horizontal distance between a vertically-extending seat center line passing a center of the seat in the seat width direction and a support position of the elbow at the first armrest is greater than that between said vertically-extending seat center line and a support position of the elbow at the second armrest, and a height of the support position of the elbow at the first armrest is greater than that of the support position of the elbow at the second armrest, the setting method comprising:

• setting a height of each of said elbow's support positions at the first and second armrests at a level corresponding to a locus of a rotational motion of an upper arm portion of the arm of the passenger seated in the seat, the locus of the rotational motion of the upper arm portion of the passenger's arm being formed by the elbow when the upper arm portion of the passenger's arm rotates, in a vehicle width direction, around a shoulder position of the passenger seated in the seat.