Abstract: A vehicle body structure comprises: a side roof rail, a rear roof rail, and a rear pillar, which are disposed in the rear portion of an vehicle body, and which intersect each other at an intersecting portion; a rear door provided for optionally opening and closing a rear port of the vehicle body; an automatic opening and closing unit disposed inside the vehicle body and in the vicinity of the intersecting portion; an aperture provided in the intersecting portion; and an arm provided through the aperture for connecting the automatic opening and closing unit to the rear door. The automatic opening and closing unit is fixed to at least the side roof rail, the rear roof rail, and the rear pillar so as to pass above the aperture.

Abstract: A vehicle door open-close device which makes it possible to achieve a reduction in numbers of parts and also make the deflection width size of a member 5 small, to thereby allow an effective use of a vehicle compartment to be aimed at, is produced, comprising a driving mechanism positioned inwardly from a door opening, an operation transfer mechanism to connect this driving mechanism and the vehicle door, the operation transfer mechanism being equipped with a slider member reciprocatingly and linearly moving by the aid of the driving means, and a link member connecting this slider member and the vehicle door, wherein the link member is rotatably connected to the slider member and the vehicle door, and the link member includes a straight portion and a curved portion outwardly and protrudingly curved away from a center of rotation of the vehicle door, and a straight portion 5b formed in substantially straight line in a connection part 8.