Patent ID: 8162379

Claim:
A vehicle door system comprising: a door ( 10 , 40 ) provided on a side of a vehicle ( 1 ) having two rows of front and rear seats to cover by itself an area of the two rows of front and rear seats in the longitudinal direction of the vehicle; two first linking means ( 11 , 41 ) provided at a front end portion and a rear end portion of the door in the longitudinal direction of the door, and separately connecting the front end portion and the rear end portion of the door to the vehicle body in a releasable manner, while being controllable so as to open/close the door with respect to the vehicle body with a motion at least including one of rotation and parallel translation of the door with respect to the vehicle body; and second linking means ( 42 ) having a first link ( 423 ) and a second link ( 424 ) which are connected with each other to enable control of rotation in a horizontal plane of the vehicle body, the first link having a vertical cross-sectional shape whose dimension in the height direction of the vehicle body is larger than a dimension in the horizontal direction of the vehicle body and having a lower end portion in the height direction connected to a floor portion of the vehicle body, which floor portion substantially faces a center portion of the door, and the second link having a vertical cross-sectional shape whose dimension in the height direction of the vehicle body is larger than a dimension in the horizontal direction of the vehicle body and having an upper end portion and a lower end portion in the height direction connected to an inner side face of the door, characterized in that: when linkage of either one of the two first linking means with the vehicle body is released, the second linking means is expanded in the outward direction of the vehicle body to receive weight of the door and stress of the door in the height direction, cooperating with the remaining first linking means; and when the door is closed, the second linking means is folded and permitted to be positioned close to the inner side face of the door.