Patent ID: 8459722

Claim:
A door device for vehicles comprising: a single door arranged at an opening formed on a side of a vehicle body of a vehicle in a longitudinal direction of the vehicle, the opening ranging from front seats to rear seats arranged in the vehicle, the front and rear seats being arranged respectively in two front and rear rows in a the vehicle body of the vehicle; two intermediate members provided between each of a front end portion and a rear end portion of the door in the longitudinal direction and the vehicle body; two first connecting mechanisms that connect the door to the two intermediate members such that the door is allowed to perform at least one of rotation and parallel translation from and to the vehicle body; and two second connecting mechanisms that detachably connects the two intermediate members to the vehicle body; and a controller that, when one of the two intermediate members acts as an intermediate member assigned to a supporting side of the door being opened and the other of the two intermediate members act as an intermediate member assigned to an opening side of the door being opened, controls: the opening-side second connecting mechanism to release a connection thereof to separate the opening-side intermediate member from the vehicle body, the supporting-side second connecting mechanism to fix the supporting-side intermediate member to the vehicle body, the supporting-side first connecting mechanism to open the door which becomes integral with both the opening-side first connecting mechanism and the opening-side intermediate member, and the supporting-side first and second connecting mechanisms to enable the supporting-side first and second connecting mechanisms and the supporting-side intermediate member to act as one unit to sustain a special positional relationship between the door and the vehicle body against a stress applied to the door.