Abstract: 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.

Abstract: A vehicle door device includes 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 front door of a vehicle. The front door is opened toward a vehicle front side based on an operation of a link mechanism formed of the first and second link arms. The first link arm has the first rotary coupling point inside a dash panel provided at a front portion of a vehicle interior.

Abstract: A vehicle door device includes: first and second link arms; a door-side engagement portion that is provided at a close-side end portion of the door that opens and closes a door opening of the vehicle; and a vehicle body-side engagement portion that is provided at a close-side end portion of the door opening that the close-side end portion of the door comes into contact with and separates from, in which one side of the door-side engagement portion and the vehicle body-side engagement portion includes an axial engagement portion extending in a vertical direction of the vehicle, the other side of the door-side engagement portion and the vehicle body-side engagement portion includes a guide groove having a pair of side wall portions, and the axial engagement portion is disposed inside the guide groove at an opening-and-closing operation position in the vicinity of a fully closed position of the door.