VEHICLE DOOR DEVICE

A vehicle door device includes a first link mechanism formed of first and second link arms having a first rotary coupling point with respect to a vehicle body and a second rotary coupling point with respect to a door of a vehicle, and a second link mechanism formed of the first and second link arms provided independently of the first and second link arms forming the first link mechanism. First and second doors respectively supported by the first and second link mechanisms open and close independently in different directions based on operations of the first and second link mechanisms. At least one of the first and second link arms forming the first link mechanism and the first and second link arms forming the second link mechanism is provided with a coupling length variable mechanism that allows a coupling length between the first and second rotary coupling points to vary.